HITACHI INVERTER

SJ300 / L300P SERIES

SERVICE MANUAL

After reading this manual , keep it hand for future reference.

HITACHI ＮＢＳ６１１BＸ
ＮＢＳ６１１ Ｘ
 Revision History Table
The Date Operation
No. Revision Contents
of Issue Manual No.
1 Japanese font was removed. Nov. 2000 NBS611BX

2 .
Table of contents
1. Investigation of the inverter
1.1 Specification label(Model name , Manufacturing number ; MFG)
1.1.1 Model name - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-1
1.1.2 MFG number - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - 1-1
1.2 Inverter specification
1.2.1 SJ300 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-2
1.2.2 L300P - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-10
2. Trouble shooting
2.1 INV trip contents , remedy , advice - - - - - - - - - - - - - - - - - - - 2-1
2.2 Option error
2.2.1 Feedback card - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-3
2.2.2 Digital option card - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-3
2.3 Confirmation of the trip monitor contents - - - - - - - - - - - - - - - - - 2-3
2.4 Confirmation of the warning monitor contents - - -- - - - - - - - - - - 2-4
3. Debug mode
3.1 Monitor - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-1
3.2 Parameter settings for inverter - - - - - - - - - - - - - - - - - - - - - - - - 3-2
4. Maintenance and Inspection
4.1 Maintenance and Inspection
4.1.1 Daily inspection - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-1
4.1.2 Cleaning - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-1
4.1.3 Periodical inspection - - - - - - - - - - - - - - - - - - - - - - - - - 4-1
4.2 Daily and annual maintenance - - - - - - - - - - - - - - - - - - - - - - - - 4-2
4.3 Megger test - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-3
4.4 Withstand voltage test - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-3
4.5 How to check inverter & converter portion - - - - - - - - - - - - - - - 4-4
4.6 Parts replacement - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-5
4.7 Unit replacement - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-8
Appendix
Circuit Diagram
Internal block diagram
1. Investigation of the inverter

1.1 Specification label (Model name, Manufacturing number ; MFG)

• There are 2 specification label attached to the inverter as shown in Fig 1-1.

Specification label

Fig 1-1 Specification label location

• Please confirm the model name and MFG number from the specification label as follows.

Model name
Applicable motor
Input ratings

Output ratings
MFG number

Fig 1-2 contents of specification label

1.1.1 Model name

SJ300-055 H F (R)
R : with POT meter
F : with digital operator
L : 3φ 200V class
H : 3φ 400V class
Applicable motor (055 : 5.5kW)
Model name

1.1.2 MFG number

94 A T12345 9 0001
Serial No. (0001 ~ 9999)
Year of production (9 : 1999)
Production No.
REV. No.
Production year & month (94 : 1999 / April)

1-1
 1.2 Inverter specification
1.2.1 SJ300 (Note1)
Monitor Mode
Dis-
SJ300 monitor or data range Initial
play Function name Note
(digital operator) data
code
Output frequency
d001 0.00-99.99/100.0-400.0(Hz) -
monitor
Output current
d002 0.0-999.9(A) -
monitor
Operation direction
d003 F(forward)/o(stop)/r(reverse) -
monitor
PID feedback 0.00-99.99/100.0-999.9/1000. –9999. /
d004 -
monitor 1000-9999/{100-{999 (10000-99900)
(Example) FW, terminal 7,2,1: ON
FW
Terminal 8,6,5,4,3:OFF
Intelligent input ON
d005 -
terminal monitor
OFF
8 7 6 5 4 3 2 1
(Example) Terminal 12,11:ON
AL, 15,14,13:OFF
Intelligent output ON
d006 -
terminal monitor
OFF
AL 15 14 13 12
Frequency 0.00-99.99/100.0-999.9/1000. –9999. /
d007 -
conversion monitor 1000-3996
d012 torque monitor -300.-+300.% -
Output voltage
d013 0.0-600.0 V -
monitor
Input electric power
d014 0.0-999.9 kW -
monitor
Accumulated time
d016 monitor during 0.-9999./1000-9999/{100-{999 hr -
RUN
Power ON time
d017 0.-9999./1000-9999/{100-{999 hr -
monitor
Number of trip time
d080 0.-9999./1000-6553(10000-65530) (time) -
monitor
d081 Trip monitor 1 -
d082 Trip monitor 2 -
d083 Trip monitor 3 Trip Code, frequency(Hz), current(A), -
d084 Trip monitor 4 voltage(V),RUN time(hr) power ON time(hr) -
d085 Trip monitor 5 -
d086 Trip monitor 6 -
d090 Warning monitor Warning code -
Output frequency 0.0, starting frequency-Max. frequency
F001 0.00
setting (2 nd max. 3 rd max. frequency)(Hz)
st
F002 1 acceleration time 0.01-99.99/100.0-999.9/1000. -3600.(s) 30.00
F202 2 nd acceleration time 0.01-99.99/100.0-999.9/1000. -3600.(s) 30.00
F302 3 rd acceleration time 0.01-99.99/100.0-999.9/1000. -3600.(s) 30.00
F003 1 st deceleration time 0.01-99.99/100.0-999.9/1000. -3600.(s) 30.00
F203 2 nd deceleration time 0.01-99.99/100.0-999.9/1000. -3600.(s) 30.00
F303 3 rd deceleration time 0.01-99.99/100.0-999.9/1000. -3600.(s) 30.00
Operation direction
F004 00(forward)/01(reverse) 00
selection
(Note1) Change mode during run by selection of b031 (software lock selection).
(Note2) Do not forget to press “STR” key when you change the display.

1 –2
 Function Mode
Initial data
Code Function name SJ300 Setting range Note
-FE/-FU/-F
A001 Frequency setting selection 01(terminal)/02(operator)/03(RS485)/04(option1)/05(option2) 01/01/02
A002 Operation setting selection 01(terminal)/02(operator)/03(RS485)/04(option1)/05(option2) 01/01/02
Base setting

A003 Base frequency 30. - Maximum. frequency(Hz) 50./60./60.

A203 Base frequency, 2nd motor 30. – 2nd Maximum. frequency (Hz) 50./60./60.
A303 Base frequency, 3rd motor 30. - 3rd Maximum. frequency (Hz) 50./60./60.
A004 Maximum frequency 30. – 400. (Hz) 50./60./60.
A204 Maximum frequency, 2nd motor 30. – 400. (Hz) 50./60./60.
A304 Maximum frequency, 3rd motor 30. – 400. (Hz) 50./60./60.
00( Changing of O and OI with AT terminal)/
A005 AT terminal selection 00
Analog input setting

01(Changing of O and O2 with AT terminal)

00(single)/01(auxiliary speed of O, OI) [no reversible] /
A006 02 selection 00
02(auxiliary speed of O, OI [reversible]
A011 0 start 0.00-99.99/100.0-400.0 (Hz) 0.00
A012 0 end 0.00-99.99/100.0-400.0 (Hz) 0.00
A013 0 start rate 0.-100.0 (%) 0.
A014 0 end rate 0.-100.0(%) 100.
A015 0 start selection 00 (external starting frequency)/01(0Hz) 01
A016 O, OI, O2 sampling 1.-30.(times) 8.
00(binary : range is to 16 stage speed with 4 terminals)/
A019 Multi-speed selection 00
01(bit : range is to 8 stage speed with 7 terminals)
A020 Multi-speed 0 0.00, starting frequency-maximum. frequency(Hz) 0.00
A220 Multi-speed 0, 2 nd motor 0.00, starting frequency-2 nd maximum frequency(Hz) 0.00
Multistage speed,jogging frequency setting

A320 Multi-speed 0, 3 rd motor 0.00, starting frequency-3 rd maximum frequency(Hz) 0.00

A021 Multi-speed1 0.00, starting frequency-maximum frequency(Hz) 0.00
A022 Multi-speed2 0.00, starting frequency-maximum frequency(Hz) 0.00
A023 Multi-speed3 0.00, starting frequency-maximum frequency(Hz) 0.00
A024 Multi-speed4 0.00, starting frequency-maximum frequency(Hz) 0.00
A025 Multi-speed5 0.00, starting frequency-maximum frequency(Hz) 0.00
A026 Multi-speed6 0.00, starting frequency-maximum frequency(Hz) 0.00
A027 Multi-speed7 0.00, starting frequency-maximum frequency(Hz) 0.00
A028 Multi-speed8 0.00, starting frequency-maximum frequency(Hz) 0.00
A029 Multi-speed9 0.00, starting frequency-maximum frequency(Hz) 0.00
A030 Multi-speed10 0.00, starting frequency-maximum frequency(Hz) 0.00
A031 Multi-speed11 0.00, starting frequency-maximum frequency(Hz) 0.00
A032 Multi-speed12 0.00, starting frequency-maximum frequency(Hz) 0.00
A033 Multi-speed13 0.00, starting frequency-maximum frequency(Hz) 0.00
A034 Multi-speed14 0.00, starting frequency-maximum frequency(Hz) 0.00
A035 Multi-speed15 0.00, starting frequency-maximum frequency(Hz) 0.00
A038 Jogging frequency 0.00, starting frequency-9.99(Hz) 1.00
00(free-run on JG stop / invalid on running) / 01(stop decelerating on
JG stop / invalid on running) / 02(DC braking on JG stop/invalid on
A039 Jogging selection running) / 03(free-run on JG stop/valid on running[JG after stop 00
decelerating]) / 04 (stop decelerating on JG stop/valid on running) / 05
(DC braking on JG stop/valid on operating)
A041 Torque boost selection 00 (manual torque boost) / 01 (automatic torque boost) 00
Torque boost selection, 2nd
A241 00 (manual torque boost) / 01 (automatic torque boost) 00
motor
V/f characteristic

A042 Manual torque boost 0.0-20.0(%) 1.0

A242 Manual torque boost, 2 nd motor 0.0-20.0(%) 1.0
A342 Manual torque boost, 3rd motor 0.0-20.0(%) 1.0
A043 Manual torque boost point 0.0-50.0(%) 5.0
Manual torque boost point, 2 nd
A243 0.0-50.0(%) 5.0
motor
rd
Manual torque boost point, 3
A343 0.0-50.0(%) 5.0
motor
00/(VC)/01(VP1.7power)/02(free V/f setting)/03(SLV)/
A044 1st control 00
04(0Hz-SLV)/05(V2)
nd
A244 2 control 00/(VC)/01(VP1.7power)/02(free V/f setting) /03(SLV)/04(0Hz-SLV) 00
A344 3rd control 00/(VC)/01(VP1.7power) 00
A045 Output voltage gain 20. - 100. 100.
Direct current braking

A051 DC braking selection 00(invalid)/01(valid) 00

A052 DC braking frequency 0.00-60.00(Hz) 0.50
A053 DC braking wait time 0.0 - 5.0(s) 0.0
A054 DC braking power 0. - 100. (%) 0.
A055 DC braking time 0.0 - 60.0(s) 0.0
A056 DC braking edge/level selection 00(edge action)/01(level action) 01
A057 DC braking power (starting time) 0. - 100. (%) 0.
A058 DC braking time(starting time) 0.00-60.0(s) 0.0
A059 DC carrier frequency 0.5-15(kHz) Derating 5.0

1- 3
 Function Mode
Initial data
Code Function name SJ300 Setting range -FE/-FU
Note
A061 1st frequency maximum limiter 0.00, 1st frequency lower limitter - maximum frequency(Hz) 0.00
A261 2nd frequency maximum limiter 0.00, 2 nd frequency lower limiter-2 nd setting maximum frequency(Hz) 0.00
Upper and lower limiter,jump

A062 1st frequency minimum limiter 0.00, start frequency-maximum frequency(Hz) 0.00
A262 2nd frequency minimum limiter 0.00, start frequency-2 nd setting maximum frequency(Hz) 0.00
A063 Jump frequency1 0.00-99.99/100.0-400.0(Hz) 0.00
A064 Jump frequency Width 1 0.00-10.00(Hz) 0.50
A065 Jump frequency2 0.00-99.99/100.0-400.0(Hz) 0.00
A066 Jump frequency Width 2 0.00-10.00(Hz) 0.50
A067 Jump frequency3 0.00-99.99/100.0-400.0(Hz) 0.00
frequency

A068 Jump frequency Width 3 0.00-10.00(Hz) 0.50

A069 Acceleration stop frequency 0.00-99.99/100.0-400.0(Hz) 0.00
A070 Acceleration stop time 0.00-60.0(s) 0.0
A071 PID selection 00(invalid)/01(valid) 00
A072 PID-P gain 0.2-5.0 1.0
A073 PID-I gain 0.0-3600.(s) 1.0
PID control

A074 PID-D gain 0.00-100.0(s) 0.00

A075 PID scale 0.01-99.99(%) 1.00
A076 PID feedback selection 00(feedback : OI)/01(feedback : O) 00
A081 AVR selection 00(ON always)/01(OFF always)/02(OFF on decelerating) 02
AVR

(230/400)/
A082 Motor voltage selection 200/215/220/230/240, 380/400/415/440/460/480 (230/460)/
(200/400)
A085 Operation mode selection 00(normal operation)/01(energy-saving operation)/02(Fuzzy) 00
Operation mode/ adjustable function

Energy-saving response-
A086 0.0-100.0 50.0
accuracy adjustment
A092 Acceleration time2 0.01-99.99/100.0-999.9/1000.-3600.(s) 15.00
A292 Acceleration time2(2 nd motor) 0.01-99.99/100.0-999.9/1000.-3600.(s) 15.00
A392 Acceleration time2(3rd motor) 0.01-99.99/100.0-999.9/1000.-3600.(s) 15.00
A093 Deceleration time2 0.01-99.99/100.0-999.9/1000.-3600.(s) 15.00
A293 Deceleration time2(2 nd motor) 0.01-99.99/100.0-999.9/1000.-3600.(s) 15.00
A393 Deceleration time2(3rd motor) 0.01-99.99/100.0-999.9/1000.-3600.(s) 15.00
A094 2nd stage adjustable selection 00(change with 2CH terminal)/01(change with setting) 00
2nd stage adjustable
A294 00(change with 2CH terminal)/01(change with setting) 00
selection(2 nd motor)
A095 2nd acceleration frequency 0.00-99.99/100.0-400.0(Hz) 0.00
2nd acceleration
A295 0.00-99.99/100.0-400.0(Hz) 0.00
frequency(2 nd motor)
A096 2nd deceleration frequency 0.00-99.99/100.0-400.0(Hz) 0.00
2nd deceleration frequency
A296 0.00-99.99/100.0-400.0(Hz) 0.00
(2nd motor)
A097 Acceleration pattern selection 00(straight line)/01(S-curve)/02(U-curve)/03(reverse U-curve) 00
A098 Deceleration pattern selection 00(straight line)/01(S-curve)/02(U-curve)/03(reverse U-curve) 00
A101 OI start 0.00-99.99/100.0-400.0(Hz) 0.00
External frequency

A102 OI end 0.00-99.99/100.0-400.0(Hz) 0.00

A103 OI start rate 0.-100. (%) 20.
A104 OI end rate 0.-100. (%) 100.
adjustment

A105 OI start selection 00(external start frequency)/01(0Hz) 01

A111 O2 start -400.--100./-99.9-0.00-99.9/100.-400.(Hz) 0.00
A112 O2 end -400.--100./-99.9-0.00-99.9/100.-400.(Hz) 0.00
A113 O2 start rate -100. - 100. (%) -100.
A114 O2 end rate -100. - 100. (%) 100.
A131 Acceleration curve constant 01(small swelling)-10(large swelling) 02
Accel,
Decel

A132 Deceleration curve constant 01(small swelling-10(large swelling) 02

00(trip)/01(0Hz start)/02(start after equal frequency)/

b001 Retry selection 00
03(trip after equaling frequency and deceleration stop)
Instantaneous power failure

Allowable under-voltage power

b002 0.3-1.0(s) 1.0
failure time
b003 Retry wait time 0.3-100.(s) 1.0
Instantaneous power failure/ 00(invalid/01(valid)/02(invalid during stop and deceleration by stop
b004 00
under-voltage trip during stop command)
Instantaneous power failure/
b005 under-voltage retry time 00(16 times)/01(free) 00
restart

selection
b006 Open-phase selection 00(invalid)/01(valid) 00
b007 Frequency setting to match 0.00-99.99/100.0-400.0(Hz) 0.00

1- 4
 Function mode
Initial data
Code Function name SJ300 Setting range -FE/-FU/-F
Note
Rated
b012 Electronic thermal level 0.2*constant current-1.20*constant current(A) Current of
inverter
Rated
Electronic thermal level
b212 0.2*constant current-1.20*constant current(A) Current of
(2nd motor) Inverter
Rated
Electronic thermal level
b312 0.2*constant current-1.20*constant current(A) current of
(3rd motor) inverter
st
1 electronic thermal 00(reduced characteristic)/ 01(constant torque characteristic)/
b013 01/01/00
characteristic selection 02(free setting)
Electronic thermal

2nd electronic thermal 00(reduced characteristic)/ 01(constant torque characteristic)/

b213 01/01/00
characteristic selection 02(free setting)
3rd electronic thermal 00/(reduced characteristic)01(constant torque characteristic)/
b313 01/01/00
characteristic selection 02(free setting)
Free electronic thermal
b015 0.-400.(Hz) 0.
frequency 1
Free electronic thermal
b016 0.0-1000.(A) 0.0
current 1
Free electronic thermal
b017 0.-400.(Hz) 0.
frequency 2
Free electronic thermal
b018 0.0-1000. (A) 0.0
current 2
Free electronic thermal
b019 0.-400.(Hz) 0.
frequency 3
Free electronic thermal
b020 0.0-1000.(A) 0.0
current 3
00(invalid)/01(enabled on acceleration / constant speed)/
b021 Overload restriction selection 02(enabled on constant speed)/03(enabled on acceleration / constant 01
speed (speed increasing at regenerating mode))
Rated current
b022 Overload restriction level 0.50* rated current-2.00* rated current(A) of Inverter
x 1.50
Overload restriction limit
b023 0.10-30.00(s) 1.00
constant
Overload limit

00(invalid)/01(enabled on acceleration / constant speed)/

Overload restriction 2
b024 02(enabled on constant speed)/03(enabled on acceleration / constant 01
selection
speed (speed increasing at regenerating mode))
Rated current
b025 Overload restriction level 2 0.50*rated current-2.00*rated current(A) of inverter
x1.50
Overload restriction constant
b026 0.10-30.00(s) 1.00
2
00(impossible to change the data except this item when SFT terminal is
ON)/01(impossible to change the data except setting frequency item
when SFT terminal is ON)/02(impossible to change the data except this
b031 Software lock mode selection 01
item)/
03(impossible to change the data except setting frequency item)/
10(possible to change data on operating)
b100 Free V/f frequency 1 0.- Free V/f frequency2(Hz) 0.
b101 Free V/f voltage 1 0.-800.0(V) 0.0
b102 Free V/f frequency 2 0.- Free V/f frequency3(Hz) 0.
b103 Free V/f voltage 2 0.-800.0(V) 0.0
b104 Free V/f frequency 3 0.- Free V/f frequency4(Hz) 0.
b105 Free V/f voltage 3 0.-800.0(V) 0.0
Free V/f setting

b106 Free V/f frequency 4 0.- Free V/f frequency5(Hz) 0.

b107 Free V/f voltage 4 0.-800.0(V) 0.0
b108 Free V/f frequency 5 0.- Free V/f frequency6(Hz) 0.
b109 Free V/f voltage 5 0.-800.0(V) 0.0
b110 Free V/f frequency 6 0.- Free V/f frequency7(Hz) 0.
b111 Free V/f voltage 6 0.-800.0(V) 0.0
b112 Free V/f frequency 7 0.-400.(Hz) 0.
b113 Free V/f voltage 7 0.-800.0(V) 0.0
01/(RV:Reverse is valid)/02(CF1:Multi-speed1)/ 03(CF2:Multi-speed2)/
C001 Intelligent input 1 setting 04(CF3:Multi-speed3)/ 05(CF4:Multi-speed4)/ 06(JG:Jogging)/ 18
Intelligent input terminal setting

07(DB:External DC braking)/ 08(SET:2 nd control)/

09(2CH:two-stage adjustable speed)/ 11(FRS:Free-run)/ 12(EXT:External
C002 Intelligent input 2 setting 16
trip)/
13(USP:Unattended start protection)/ 14(CS:commercial change)/
C003 Intelligent input 3 setting 15(SFT:software lock)/ 16(AT:Analog input voltage/current select)/ 06
17(SET3:3 rd control)/ 18(RS:Reset inverter)/ 20(STA:3wire run)/
21(STP:3wire keep)/ 22(F/R:3wire forward/reverse)/
C004 Intelligent input 4 setting 23(PID:PID selection valid/invalid)/ 24(PIDC:PID integrating reset)/ 11
26(CAS:Control gain switch function)/ 27(UP:Remote control UP function)/
28(DWN:Remote control DOWN function)/29(UDC:Remote control data clear)/
C005 Intelligent input 5 setting 31(OPE:Operating by operator select)/ 32(SF1:Multi-speed bit1)/ 09
33(SF2:Multi-speed bit2)/ 34(SF3:Multi-speed bit3)/ 35(SF4:Multi-speed bit4)/
C006 Intelligent input 6 setting 36(SF5:Multi speed bit5)/ 37(SF6:Multi-speed bit6)/ 38(SF7:Multi-speed bit7)/ 03/13/03
39(OLR:Overload restriction change) / 40(TL:Torque limit select)/
C007 Intelligent input 7 setting 41(TRQ1:Torque limit switch 1)/ 42(TRQ2:Torque limit switch 2)/ 02
43((PPI:P/PI switch)/ 44(BOK:Braking comformation)/ 45(ORT:Orientation)/
C008 Intelligent input 8 setting 46(LAC:LAD cancel)/ 47(PCLR:Position error clear)/ 01
48(STAT:Permission of pulse train)/ no(NO:No assign)

1- 5
 Function mode
Initial data
Code Function name SJ300 Setting range -FE/-FU/-F
Note
Intelligent input 1 a/b
C011 00(NO)/01(NC) 00
(NO/NC) selection
Intelligent input 2 a/b
C012 00(NO)/01(NC) 00
(NO/NC) selection
Intelligent input 3 a/b
C013 00(NO)/01(NC) 00
Input terminal setting

(NO/NC) selection
Intelligent input 4 a/b
C014 00(NO)/01(NC) 00
(NO/NC) selection
Intelligent input 5 a/b
C015 00(NO)/01(NC) 00
(NO/NC) selection
intelligent

Intelligent input 6 a/b

C016 00(NO)/01(NC) 00/01/00
(NO/NC) selection
Intelligent input 7a/b
C017 00(NO)/01(NC) 00
(NO/NC) selection
Intelligent input 8 a/b
C018 00(NO)/01(NC) 00
(NO/NC) selection
Input FW a/b (NO/NC)
C019 00(NO)/01(NC) 00
Selection
00(RUN:running)/01(FA1:Frequency arrival type1 signal)/
Intelligent output terminal setting

C021 Intelligent output 11 setting 02(FA2:over setting frequency)/03(OL:Overload advance notice signal)/ 01
04(OD:Output deviation for PID control)/05(AL:Alarm signal)/
06(FA3:Only setting frequency)/07(OTQ:Over-torque signal)/
C022 Intelligent output 12 setting 00
08(IP:On instantaneous stop)/09(UV:Under voltage)/
10(TRQ:Torque limit)/11(RNT:RUN time over/12(ONT:ON time over)/
C023 Intelligent output 13 setting 03
13(THM:thermal caution)/19(BRK:Brake release signal)/
20(BER:Brake error signal)/21(ZS:Zero speed detect signal)/
C024 Intelligent output 14 setting 22(DSE:Speed error over signal)/23(POK:Positioning completion signal) 07
24(FA4:Over frequency 2 signal)/25(FA5:Only setting frequency)/
C025 Intelligent output 15 setting 08
26(OL2: Overload advance notice signal 2)
(Intelligent output terminal 11-13 or 11-14 becomes AC0-AC2 or AC0-AC3
C026 Alarm relay output (Can:Alarm cord output) forcibly when alarm cord output is selected in 05
C062)
00(Output frequency)/01(Output current) /02(Output torque)/
C027 FM selection 03(Digital output frequency)/04(Output voltage)/ 00
05(Input electric power)/06(thermal load rate)/07(LAD frequency)
00(Output frequency)/01(Output current)/02(Output torque)/
C028 AM selection 04(Output voltage)/05(Input electric power)/06(thermal load rate)/ 00
07(LAD frequency)
00(Output frequency)/01(Output current)/02(Output torque)/
C029 AMI selection 04(Output voltage)/05(Input electric power)/ 00
06(Thermal load rate)/07(LAD frequency)
C031 Intelligent output 11 a/b 00(NO)/01(NC) 00
C032 Intelligent output 12 a/b 00(NO)/01(NC) 00
C033 Intelligent output 13 a/b 00(NO)/01(NC) 00
C034 Intelligent output 14 a/b 00(NO)/01(NC) 00
C035 Intelligent output 15 a/b 00(NO)/01(NC) 00
C036 Alarm relay output a/b 00(NO)/01(NC) 01
Overload advance notice
C040 00(On accel. And decel, constant speed)/01(Only constant speed) 01
signal output mode
state

Overload advance notice Inverter

C041 0.0-2.0*rated current(A)
setting,Output level setting

level rated current

Frequency arrival setting for
C042 0.00-99.99/100.0-400.0(Hz) 0.00
terminal

acceleration.
Arrival frequency setting for
C043 0.00-99.99/100.0-400.0(Hz) 0.00
deceleration.
C044 PID deviation setting level 0.0-100.0(%) 3.0
Frequency arrival setting for
C045 0.00-99.99/100.0-400.0(Hz) 0.00
Output

acceleration 2.
Arrival frequency setting for
C046 0.00-99.99/100.0-400.0(Hz) 0.00
deceleration 2.
Over torque level setting
C055 0.-200.(%) 100.
(Forward-driving)
Over torque level setting
C056 0.-200.(%) 100.
(Reverse-regenerating)
Over torque level setting
C057 0.-200.(%) 100.
(Reverse-driving)
Over torque level setting
C058 0.-200.(%) 100.
(Forward-regenerating)
Thermal warning level
C061 0.-100.(%) 80.
setting
C062 Alarm code selection 00(Invalid)/01(3bit)/02(4bit) 00
Zero speed detection level
C063 0.00-99.99/100.(Hz) 0.00
setting
C070 Data command 02(operator)/03(RS485)/04(option1)/05(option2) 02
function adjustment

Communicating transmission 02(loop-back test)

C071 04
Communication

speed 03(2400bps)/04(4800bps)/05(9600bps)/06(19200bps)
C072 Communication code 1. -32. 1.
C073 Communication bit 7(7bit)/8(8bit) 7
C074 Communication parity 00(no parity name)/01(even parity)/02(odd parity) 00
C075 Communication stop bit 1(bit)/2(bit) 1
C078 Communication waiting time 0.-1000.(ms) 0.
Setting on
C081 O adjustment 0.-9999./1000-6553(10000-65530) forwarding
Analog meter setting

Setting on
C082 OI adjustment 0.-9999./1000-6553(10000-65530) forwarding
Setting on
C083 O2 adjustment 0.-9999./1000-6553(10000-65530) forwarding
C085 Thermistor adjustment 0.0 - 1000. 105.0
C086 AM offset adjustment 0.0 - 10.0(V) 0.0
C087 AMI adjustment 0. - 255. 80
Setting on
C088 AMI offset adjustment 0. - 20.0(mA) forwarding

1- 6
 Function mode
Initial data
Code Function name SJ300 Setting range -FE/-FU/-F
Note
b034 RUN time/Power ON time level 0.-9999./1000-6553(10000-65530)hr 0.
b035 Operation direction restrict 00(Reverse is valid)/01(Only forward)/02(Only reverse) 00
b036 Start reduced voltage 00(Start reduced voltage time small)-06(Start reduced voltage time large) 06
b037 Display selection 00(all display)/01(each function display)/02(User setting / main setting) 00
00(4 quadrant mode)/01(Terminal operation)/
b040 Torque limit mode selection 00
02(Analog input)/03(Option1)/04(Option2)
Torque limit level 1 setting
b041 (Forward-driving at 0.-200.(%)/no(Invalid) 150.
4 quadrant mode)
Torque limit level 2 setting
b042 (Reverse-regenerating at 0.-200.(%)/no(Invalid) 150.
4 quadrant mode)
Torque limit level 3 setting
b043 (Reverse-driving at 0.-200.(%)/no(Invalid) 150.
4 quadrant mode)
Torque limit level 4 setting
b044 (Forward-regenerating at 0.-200.(%)/no(Invalid) 150.
4 quadrant mode)
b045 Torque LAD-STOP selection 00(Invalid)/01(Valid) 00
Reverse run prevention
b046 00(Invalid)/01(Valid) 00
selection
Selection of non-stop
b050 function at instantaneous 00(Invalid)/01(Valid) 00
power failure
Start voltage of non-stop
b051 0.0-1000.(V) 0.0
function setting
OV LAD-STOP level of non-
b052 0.0-1000.(V) 0.0
stop function setting
The others

Deceleration time of non-

b053 0.01-99.99/100.0-999.9/1000.-3600.(s) 1.00
stop function setting
Deceleration frequency width
b054 0.00-10.00(Hz) 0.00
of non-stop function setting
b080 AM adjustment 0. - 255. 180
b081 FM adjustment 0. - 255. 60
b082 Start frequency adjustment 0.10-9.99(Hz) 0.50
b083 Carrier frequency setting 0.5-15.0(kHz) Derating enable, 5.0
00(Trip history clear)/01(Data initialization)/
b084 Initialize mode 00
02(Trip history clear + data initialization)
b085 Country code for initialization 00(Interior)/01(EC)/02(USA) 01/02/00
Frequency scalar conversion
b086 0.1-99.9 1.0
factor
b087 STOP key enable 00(valid)/01(invalid) 00
Resume on FRS cancellation
b088 00(0Hz start)/01(Start f-equaling) 00
mode
b090 BRD usage ratio 0.0-100.0(%) 0.0
b091 Stop mode selection 00(deceleration stop)/01(Free-run stop) 00
00(Always ON)/
b092 Cooling fan control 00
01(ON during run, After power ON, then for 5 minutes on stop is implied.)
b095 BRD selection 00(invalid)/01(valid<invalid during stop>)/02(valid<valid during stop>) 00
b096 BRD ON level 330-380/660-760(V) 360/720
b098 Thermistor selection 00(invalid)/01(Positive temperature coefficient enable)/02 (NTC enable) 00
b099 Thermistor error level 0. - 9999. (ohm) 3000.
b120 Braking control selection 00(Invalid)/01(valid) 00
Waiting time for releasing
b121 0.00-5.00(s) 0.00
braking conformation
b122 Waiting time for acceleration 0.00-5.00(s) 0.00
b123 Waiting time for stop 0.00-5.00(s) 0.00
Waiting time for signal
b124 0.00-5.00(s) 0.00
conformation
b125 Releasing frequency 0.00-99.99/100.0-400.0(Hz) 0.00
Rated
b126 Releasing current 0.00*rated current-2.00*rated current(A) current of
inverter
C091 Debug mode selection 00(No display)/01(Display) 00
C101 UP/DWN selection 00(No frequency data)/01(Keep frequency data) 00
00(Trip cancel during ON)/01(Trip cancel during OFF)/
C102 Reset selection 00
02(Valid only during trip<Cancel during ON>)
Reset f frequency matching
C103 00(0Hz start)/01(Start f-equaling) 00
selection
Inverter
Overload advance notice
C111 0.0-2.0*rated current(A) rated
level
current
Set on
C121 O zero adjustment 0.-9999./1000-6553(10000-65530) forwarding
Set on
C122 OI zero adjustment 0.-9999./1000-6553(10000-65530) forwarding
Set on
C123 O2 zero adjustment 0.-9999./1000-6553(10000-65530) forwarding

1- 7
 Function mode
Initial data
Code Function name SJ300 Setting range -FE/-FU/-F
Note
00(Invalid)/01(Valid(the motor does not rotate))/
H001 Autotuning selection 00
02(Valid(the motor rotates))
00(Hitachi general purpose motor data)/01(Autotuning data)/
H002 1st motor constant selection 00
02(Autotuning data with online autotuning)
00(Hitachi general purpose motor data)/01(Autotuning data)/
H202 2nd motor constant selection 00
02(Autotuning data with online autotuning)
st Set on
H003 1 allowable motor selection 0.20-75.0(kW) forwarding
Set on
H203 2nd allowable motor selection 0.20-75.0(kW) forwarding
H004 1st motor pole selection 2/4/6/8(pole) 4
H204 2nd motor pole selection 2/4/6/8(pole) 4
H005 1st speed response setting 0.001-9.999/10.00-65.53 1.590
H205 2nd speed response setting 0.001-9.999/10.00-65.53 1.590
H006 1st stabilized factor 0. - 255. 100.
H206 2nd stabilized factor 0. - 255. 100.
H306 3rd stabilized factor 0. - 255. 100.
Set on
H020 1st motor constant R1 0.000-9.999/10.00-65.53(ohm) forwarding
nd Set on
H220 2 motor constant R1 0.000-9.999/10.00-65.53(ohm) forwarding
Set on
H021 1st motor constant R2 0.000-9.999/10.00-65.53(ohm) forwarding
Set on
H221 2nd motor constant R2 0.000-9.999/10.00-65.53(ohm) forwarding
Set on
H022 1st motor constant L 0.00-99.99/100.0-655.3(mH) forwarding
Set on
H222 2nd motor constant L 0.00-99.99/100.0-655.3(mH) forwarding
Set on
H023 1st motor constant I 0 0.00-99.99/100.0-655.3(A) forwarding
The others

Set on
H223 2nd motor constant I 0 0.00-99.99/100.0-655.3(A) forwarding
Set on
H024 1st motor constant J 0.001-9.999/10.00-99.99/100.0-9999.(kgm2 ) forwarding
Set on
H224 2nd motor constant J 0.001-9.999/10.00-99.99/100.0-9999.(kgm2 ) forwarding
1st motor constant R1 Set on
H030 0.000-9.999/10.00-65.53(ohm) forwarding
(Autotuning data)
2nd motor constant R1 Set on
H230 0.000-9.999/10.00-65.53(ohm) forwarding
(Autotuning data)
1st motor constant R2 Set on
H031 0.000-9.999/10.00-65.53(ohm) forwarding
(Autotuning data)
2nd motor constant R2 Set on
H231 0.000-9.999/10.00-65.53(ohm) forwarding
(Autotuning data)
1st motor constant L Set on
H032 0.00-99.99/100.0-655.3(mH) forwarding
(Autotuning data)
2nd motor constant L Set on
H232 0.00-99.99/100.0-655.3(mH) forwarding
(Autotuning data)
1st motor constant I 0 Set on
H033 0.00-99.99/100.0-655.3(A) forwarding
(Autotuning data)
2nd motor constant I 0 Set on
H233 0.00-99.99/100.0-655.3(A) forwarding
(Autotuning data)
st 2 Set on
H034 1 motor constant J 0.001-9.999/10.00-99.99/100.0-9999.(kgm ) forwarding
Set on
H234 2nd motor constant J 0.001-9.999/10.00-99.99/100.0-9999.(kgm2 ) forwarding
st
1 PI-control proportion gain
H050 0.00-99.99/100.0-999.9/1000.(%) 100.0
setting
2nd PI-control proportion gain
H250 0.00-99.99/100.0-999.9/1000.(%) 100.0
setting
1st PI-control integration gain
H051 0.00-99.99/100.0-999.9/1000.(%) 100.0
setting
2nd PI-control integration gain
H251 0.00-99.99/100.0-999.9/1000.(%) 100.0
setting
1st P-control proportion gain
H052 0.01-10.00 1.00
setting
2nd P-control proportion gain
H252 0.01-10.00 1.00
setting
H060 1st 0Hz-SLV limiter setting 0.-100.(%) 100.
H260 2nd 0Hz-SLV limiter setting 0.-100.(%) 100.
PI-control proportion gain for
H070 0.00-99.99/100.0-999.9/1000.(%) 100.0
switching
PI-control integration gain for
H071 0.00-99.99/100.0-999.9/1000.(%) 100.0
switching
P-control proportion gain for
H072 0.00-10.00 1.00
switching

1- 8
 Function mode
Initial data
Code Function name SJ300 Setting range -FE/-FU/-F
Note
Option1 operation selection
P001 00(TRP)/01(RUN) 00
on error
Option2 operation selection
P002 00(TRP)/01(RUN) 00
on error
P010 Feed-back option selection 00(Invalid)/01(Valid) 00
Encoder pulse number
P011 128.-9999./1000-6500(10000-65000) (pulse) 1024
setting
P012 Control mode selection 00(ASR mode)/01(APR mode) 00
Pulse train input mode
P013 00(Mode 0)/01(Mode 1)/02(Mode 2)/03(Mode 3) 00
selection
Orientation stop position
P014 0.-4095. 0.
setting
P015 Orientation speed setting 0.00-99.99/100.0-120.0(Hz) 5.00
Orientation direction
P016 00(Forward)/01(Reverse) 00
selection
Orientation completion range
P017 0.-9999./1000(10000) (pulse) 5
setting
Option

Orientation completion delay

P018 0.00-9.99(s) 0.00
time setting
Electronic gear position
P019 00(Feedback)/01(Reference) 00
selection
Electronic gear numerator of
P020 0.-9999. 1.
ratio setting
Electronic gear denominator
P021 0.-9999. 1.
of ratio setting
Position control feed-forward
P022 0.00-99.99/100.0-655.3 0.00
gain setting
Position control loop gain
P023 0.00-99.99/100.0 0.50
setting
Compensation of secondary
P025 00(Invalid)/01(Valid) 00
resistor selection
Over-speed detect level
P026 0.00-99.99/100.0-150.0(%) 135.0
setting
Speed-error over detect level
P027 0.00-99.99/100.0-120.0(Hz) 7.50
setting
Digital input option input
P031 00(operator)/01(option1)/02(option2) 00
mode selection (Acc/Dec)
Stop position setting for
P032 orientation input mode 00(operator)/01(option1)/02(option2) 00
selection
U001 User1 selection no/d001-P032 no
U002 User2 selection no/d001-P032 no
U003 User3 selection no/d001-P032 no
U004 User4 selection no/d001-P032 no
User selection

U005 User5 selection no/d001-P032 no

U006 User6 selection no/d001-P032 no
U007 User7 selection no/d001-P032 no
U008 User8 selection no/d001-P032 no
U009 User9 selection no/d001-P032 no
U010 User10 selection no/d001-P032 no
U011 User11 selection no/d001-P032 no
U012 User12 selection no/d001-P032 no

1- 9
1.2.2 L300P
Monitor code
Dis-
L300P monitor or data range Initial
play Function name Note
(digital operator) data
code
Output frequency
d001 0.00-99.99/100.0-400.0(Hz) -
monitor
Output current
d002 0.0-999.9(A) -
monitor
Operation direction
d003 F(forward)/o(stop)/r(reverse) -
monitor
PID feedback 0.00-99.99/100.0-999.9/1000. -9999. /
d004 -
monitor 1000-9999/{100-{999 (10000-99900)
(Example) FW, terminal2, and 1: ON
FW Terminal 5, 4, 3 :OFF
Intelligent input ON
d005 -
terminal monitor
OFF
5 4 3 2 1
(Example) Terminal2, 1:ON
AL :OFF
ON
Intelligent output
d006 -
terminal monitor OFF
AL 12 11
Frequency 0.00-99.99/100.0-999.9/1000. –9999. /
d007 -
conversion monitor 1000-3996
Output voltage
d013 0.0-600.0 V -
monitor
Electric power
d014 0.0-999.9 kW -
monitor
Accumulated time
d016 0.-9999./1000-9999/{100-{999 hr -
monitor during RUN
Power ON time
d017 0.-9999./1000-9999/{100-{999 hr -
monitor
Number of trip time
d080 0.-9999./1000-6553(10000-65530) (time) -
monitor
Trip Code, frequency(Hz), current(A),
d081 Trip monitor 1 -
voltage(V),RUN time(hr) power ON time(hr)
Trip Code, frequency(Hz), current(A),
d082 Trip monitor 2 -
voltage(V),RUN time(hr) power ON time(hr)
Trip Code, frequency(Hz), current(A),
d083 Trip monitor 3 -
voltage(V),RUN time(hr) power ON time(hr)
Trip Code, frequency(Hz), current(A),
d084 Trip monitor 4 -
voltage(V),RUN time(hr) power ON time(hr)
Trip Code, frequency(Hz), current(A),
d085 Trip monitor 5 -
voltage(V),RUN time(hr) power ON time(hr)
Trip Code, frequency(Hz), current(A),
d086 Trip monitor 6 -
voltage(V),RUN time(hr) power ON time(hr)
d090 Warning monitor Warning code -
Output frequency 0.0, starting frequency-Max. frequency
F001 0.00
setting (2 nd max. frequency)(Hz)
st
F002 1 acceleration time 0.01-99.99/100.0-999.9/1000.-3600.(s) 30.00
F202 2 nd acceleration time 0.01-99.99/100.0-999.9/1000. -3600. (s) 30.00
F003 1 st deceleration time 0.01-99.99/100.0-999.9/1000. -3600. (s) 30.00
F203 2 nd deceleration time 0.01-99.99/100.0-999.9/1000. -3600. (s) 30.00
Operation direction
F004 00(forward)/01(reverse) 00
selection
(Note1) Change mode during run by selection of b031 (software lock selection).
(Note2) Do not forget to press “STR” key when you change the display.

1 -10
 Function Mode
Initial data
Code Function name L300P Setting range No t e
-FE/-FU/-FR
00(VR)/01(terminal)/02(operator)/03(RS485)/
A001 Frequency setting selection 01/01/00
04(option1)/05(option2)
Base setting

A002 Operation setting selection 01(terminal)/02(operator)/03(RS485)/04(option1)/05(option2) 01/01/02

A003 Base frequency 30. - Maximum. frequency(Hz) 50./60./60.
A203 Base frequency, 2nd motor 30. - 2 nd Maximum. frequency (Hz) 50./60./60.
A004 Maximum frequency 30. - 400. (Hz) 50./60./60.
Maximum frequency, 2nd
A204 30. - 400. (Hz) 50./60./60.
motor
00( Changing of O and OI with AT terminal)/01(Changing of O and O2
A005 AT terminal selection 00
with AT terminal)
Analog input setting

00(single)/01(auxiliary speed of O, OI) [no reversible]

A006 02 selection 00
/02(auxiliary speed of O, OI [reversible]
A011 0 start 0.00-99.99/100.0-400.0 (Hz) 0.00
A012 0 end 0.00-99.99/100.0-400.0 (Hz) 0.00
A013 0 start rate 0.-100.0 (%) 0.
A014 0 end rate 0.-100.0(%) 100.
A015 0 start selection 00 (external starting frequency)/01(OHz) 01
A016 O, OI, O2 sampling 1.-30.(times) 8.
00(binary : range is to 16 stage speed with 4 terminals)/01(bit : range
A019 Multi-speed selection 00
is to 6 stage speed with 5 terminals)
A020 Multi-speed 0 0.00, starting frequency-maximum. frequency(Hz) 0.00
A220 Multi-speed 0, 2 nd motor 0.00, starting frequency-2 nd maximum frequency(Hz) 0.00
A021 Multi-speed1 0.00, starting frequency-maximum frequency(Hz) 0.00
A022 Multi-speed2 0.00, starting frequency-maximum frequency(Hz) 0.00
Multistage speed,jogging frequency setting

A023 Multi-speed3 0.00, starting frequency-maximum frequency(Hz) 0.00

A024 Multi-speed4 0.00, starting frequency-maximum frequency(Hz) 0.00
A025 Multi-speed5 0.00, starting frequency-maximum frequency(Hz) 0.00
A026 Multi-speed6 0.00, starting frequency-maximum frequency(Hz) 0.00
A027 Multi-speed7 0.00, starting frequency-maximum frequency(Hz) 0.00
A028 Multi-speed8 0.00, starting frequency-maximum frequency(Hz) 0.00
A029 Multi-speed9 0.00, starting frequency-maximum frequency(Hz) 0.00
A030 Multi-speed10 0.00, starting frequency-maximum frequency(Hz) 0.00
A031 Multi-speed11 0.00, starting frequency-maximum frequency(Hz) 0.00
A032 Multi-speed12 0.00, starting frequency-maximum frequency(Hz) 0.00
A033 Multi-speed13 0.00, starting frequency-maximum frequency(Hz) 0.00
A034 Multi-speed14 0.00, starting frequency-maximum frequency(Hz) 0.00
A035 Multi-speed15 0.00, starting frequency-maximum frequency(Hz) 0.00
A038 Jogging frequency 0.00, starting frequency-9.99(Hz) 1.00
00(free-run on JG stop / invalid on running) / 01(stop decelerating on
JG stop / invalid on running) / 02(DC braking on JG stop/invalid on
A039 Jogging selection running) / 03(free-run on JG stop/valid on running[JG after stop 00
decelerating]) / 04 (stop decelerating on JG stop/valid on running) /
05 (DC braking on JG stop/valid on operating)
A041 Torque boost selection 00 (manual torque boost) / 01 (automatic torque boost) 00
Torque boost selection, 2 nd
A241 00 (manual torque boost) / 01 (automatic torque boost) 00
motor
V/f characteristic

A042 Manual torque boost 0.0-20.0(%) 1.0

A242 Manual torque boost, 2 nd motor 0.0-20.0(%) 1.0
A043 Manual torque boost point 0.0-50.0(%) 5.0
Manual torque boost point, 2 nd
A243 0.0-50.0(%) 5.0
motor
st
A044 1 control 00/(VC)/01(VP1.7power)/02(free V/f setting) 00
A244 2 nd control 00/(VC)/01(VP1.7power)/02(free V/f setting) 00
A045 Output voltage gain 20. - 100. (%) 100.
A051 DC braking selection 00(invalid)/01(valid) 00
A052 DC braking frequency 0.00-60.00(Hz) 0.50
A053 DC braking wait time 0.0 - 5.0(s) 0.0
Direct current braking

A054 DC braking power 0. - 70. (%) 0.

A055 DC braking time 0.0 - 60.0(s) 0.0
DC braking edge/level
A056 00(edge action)/01(level action) 01
selection
DC braking power
A057 0. - 70. (%) 0.
(starting time)
DC braking time
A058 0.00-60.0(s) 0.0
(starting time)
A059 DC carrier frequency 0.5-12(kHz) Derating 3.0

1- 11
 Function Mode
Initial data
Code Function name L300P Setting range N ot e
-FE/-FU/-FR
A061 1 s t frequency upper limiter 0.00, 1 s t frequency lower limiter-maximum frequency(Hz) 0.00
A261 2 nd frequency upper limiter 0.00, 2 nd frequency lower limiter-2 nd setting maximum
Upper and lower limiter / jump

0.00
frequency(Hz)
A062 1 s t frequency lower limiter 0.00, start frequency-maximum frequency(Hz) 0.00
A262 2 nd frequency lower limiter 0.00, start frequency-2 nd setting maximum frequency(Hz) 0.00
A063 Jump frequency1 0.00-99.99/100.0-400.0(Hz) 0.00
A064 Jump frequency Width 1 0.00-10.00(Hz) 0.50
A065 Jump frequency2 0.00-99.99/100.0-400.0(Hz) 0.00
A066 Jump frequency Width 2 0.00-10.00(Hz) 0.50
A067 Jump frequency3 0.00-99.99/100.0-400.0(Hz) 0.00
frequency

A068 Jump frequency Width 3 0.00-10.00(Hz) 0.50

A069 Acceleration stop frequency 0.00-99.99/100.0-400.0(Hz) 0.00
A070 Acceleration stop time 0.00-60.0(s) 0.0
A071 PID selection 00(invalid)/01(valid) 00
A072 PID-P gain 0.2-5.0 1.0
AVR PID control

A073 PID-I gain 0.0-3600.(s) 1.0

A074 PID-D gain 0.00-100.0(s) 0.00
A075 PID scale 0.01-99.99 1.00
A076 PID feedback selection 00(feedback : OI)/01(feedback : O) 00
A081 AVR selection 00(ON always)/01(OFF always)/02(OFF on decelerating) 02
(230/400)
A082 Motor voltage selection 200/215/220/230/240, 380/400/415/440/460/480 (230/460)
(200/400)
A085 Operation mode selection 00(normal operation)/01(energy-saving operation) 00
Operation mode/ adjustable function

Energy-saving response-
A086 0.0-100.0 50.0
accuracy adjustment
A092 Acceleration time2 0.01-99.99/100.0-999.9/1000.-3600.(s) 15.00
A292 2 nd acceleration time2 0.01-99.99/100.0-999.9/1000.-3600.(s) 15.00
A093 Deceleration time2 0.01-99.99/100.0-999.9/1000.-3600.(s) 15.00
A293 2 nd deceleration time2 0.01-99.99/100.0-999.9/1000.-3600.(s) 15.00
A094 2 nd stage adjustable selection 00(change with 2CH terminal)/01(change with setting) 00
2 nd stage adjustable
A294 00(change with 2CH terminal)/01(change with setting) 00
selection(2 nd motor)
A095 2 nd acceleration frequency 0.00-99.99/100.0-400.0(Hz) 0.00
2 nd acceleration
A295 0.00-99.99/100.0-400.0(Hz) 0.00
frequency(2 nd motor)
A096 2 nd deceleration frequency 0.00-99.99/100.0-400.0(Hz) 0.00
2 nd deceleration frequency
A296 0.00-99.99/100.0-400.0(Hz) 0.00
(2 nd motor)
A097 Acceleration pattern selection 00(straight line)/01(S-curve)/02(U-curve)/03(reverse U-curve) 00
A098 Deceleration pattern selection 00(straight line)/01(S-curve)/02(U-curve)/03(reverse U-curve) 00
A101 OI start 0.00-99.99/100.0-400.0(Hz) 0.00
Accel External frequency

A102 OI end 0.00-99.99/100.0-400.0(Hz) 0.00

A103 OI start rate 0.-100. (%) 20.
A104 OI end rate 0.-100. (%) 100.
Decel adjustment

A105 OI start selection 00(external start frequency)/01(0Hz) 01

A111 O2 start -400.--100./-99.9-0.00-99.9/100.-400.(Hz) 0.00
A112 O2 end -400.--100./-99.9-0.00-99.9/100.-400.(Hz) 0.00
A113 O2 start rate -100. - 100. (%) -100.
A114 O2 end rate -100. - 100. (%) 100.
A131 Acceleration curve constant 01(small swelling)-10(large swelling) 02
A132 Deceleration curve constant 01(small swelling-10(large swelling) 02
00(trip)/01(0Hz start)/02(start after equal frequency)/
b001 Retry selection 00
03(trip after equaling frequency and deceleration stop)
Instantaneous power failure

Allowable under-voltage
b002 0.3-1.0(s) 1.0
power failure time
b003 Retry wait time 0.3-100.(s) 1.0
Instantaneous power-
00(invalid/01(valid)/
b004 failure/under-voltage trip 00
02(invalid during stop and deceleration by stop command)
during stop
Instantaneous power-
b005 failure/under-voltage 00(16 times)/01(free) 00
restart

retry time selection

b006 Open-phase selection 00(invalid)/01(valid) 00
b007 Frequency setting to match 0.00-99.99/100.0-400.0(Hz) 0.00
Rated
b012 Electronic thermal level 0.2*constant current-1.20*constant current(A) Current of
inverter
Rated
Electronic thermal level
b212 0.2*constant current-1.20*constant current(A) Current of
(2 nd motor)
inverter
Electronic thermal 00/(reduced characteristic)01(constant torque characteristic)/
b013 01/01/00
characteristic selection 02(free setting)
Electronic thermal

Electronic thermal
00/(reduced characteristic)01(constant torque characteristic)/
b213 characteristic selection 01/01/00
02(free setting)
(2 nd motor)
Free electronic thermal
b015 0.-400.(Hz) 0.
frequency 1
Free electronic thermal
b016 0.0-1000.(A) 0.0
current 1
Free electronic thermal
b017 0.-400.(Hz) 0.
frequency 2
Free electronic thermal
b018 0.0-1000. (A) 0.0
current 2
Free electronic thermal
b019 0.-400.(Hz) 0.
frequency 3

Free electronic thermal

b020 0.0-1000.(A) 0.0
current 3

1- 12
 Function Mode
Initial data
Code Function name L300P Setting range N ot e
-FE/-FU/-FR
Overload restriction 00(invalid)/01(enabled on acceleration / constant speed)/02(enabled
b021 01
selection on constant speed)
Rated
current of
b022 Overload restriction level 0.50* rated current-1.50* rated current(A)
inverter
x 1.20
Overload limit

Overload restriction limit

b023 0.10-30.00(s) 1.00
constant
Overload restriction 2 00(invalid)/01(valid on acceleration / constant speed)/02(valid on
b024 01
selection constant speed)
Rated
current of
b025 Overload restriction level 2 0.50*rated current-1.50*rated current(A)
inverter
x1.20
Overload restriction
b026 0.10-30.00(s) 1.00
constant 2
00(impossible to change the data except this item when SFT terminal
is ON)/01(impossible to change the data except setting frequency
Software lock mode
b031 item when SFT terminal is ON)/02(impossible to change the data 01
Lock

selection
except this item)/03(impossible to change the data except setting
frequency item)/10(possible to change data on operating)
b100 Free V/f frequency 1 0.- Free V/f frequency2(Hz) 0.
b101 Free V/f voltage 1 0.-800.0(V) 0.0
b102 Free V/f frequency 2 0.- Free V/f frequency3(Hz) 0.
b103 Free V/f voltage 2 0.-800.0(V) 0.0
b104 Free V/f frequency 3 0.- Free V/f frequency4(Hz) 0.
Free V/f setting

b105 Free V/f voltage 3 0.-800.0(V) 0.0

b106 Free V/f frequency 4 0.- Free V/f frequency5(Hz) 0.
b107 Free V/f voltage 4 0.-800.0(V) 0.0
b108 Free V/f frequency 5 0.- Free V/f frequency6(Hz) 0.
b109 Free V/f voltage 5 0.-800.0(V) 0.0
b110 Free V/f frequency 6 0.- Free V/f frequency7(Hz) 0.
b111 Free V/f voltage 6 0.-800.0(V) 0.0
b112 Free V/f frequency 7 0.-400.(Hz) 0.
b113 Free V/f voltage 7 0.-800.0(V) 0.0
01/(RV:Reverse is valid)/02(CF1:Multi-speed1)/ 03(CF2:Multi-speed2)/
Intelligent input terminal setting

C001 Intelligent input 1 setting 04(CF3:Multi-speed3)/ 05(CF4:Multi-speed4)/ 06(JG:Jogging)/ 18

07(DB:External DC braking)/08(SET:2 nd control)/
09(2CH:two-stage adjustable speed)/11(FRS:Free-run)/
12(EXT:External trip)/13(USP:Unattended start protection)/
C002 Intelligent input 2 setting 14(CS:commercial change)/15(SFT:software lock)/ 16
16(AT:Analog input voltage/current select)/18(RS:Reset inverter)/
20(STA:3wire run)/ 21(STP:3wire keep)/22(F/R:3wire forward/reverse)/
C003 Intelligent input 3 setting 23(PID:PID selection valid/invalid)/24(PIDC:PID integrating reset)/ 03/13/03
27(UP:Remote control UP function)/
28(DWN:Remote control DOWN function)/
29(UDC:Remote control data clear)/31(OPE:Force operate ope)/
C004 Intelligent input 4 setting 32(SF1:Multi-speed bit1)/ 02
33(SF2:Multi-speed bit2)/34(SF3:Multi-speed bit3)/
35(SF4:Multi-speed bit4)/36(SF5:Multi speed bit5)/
C005 Intelligent input 5 setting 37(SF6:Multi-speed bit6)/38(SF7:Multi-speed bit7)/ 01
39(OLR:Overload restriction change)/no(NO:No assign)
Intelligent input1 a/b
C011 00(NO)/01(NC) 00
(NO/NC) selection
Input terminal setting

Intelligent input2 a/b

C012 00(NO)/01(NC) 00
(NO/NC) selection
intelligent

Intelligent input3 a/b

C013 00(NO)/01(NC) 00/01/00
(NO/NC) selection
Intelligent input4 a/b
C014 00(NO)/01(NC) 00
(NO/NC) selection
Intelligent input5 a/b
C015 00(NO)/01(NC) 00
(NO/NC) selection
Input FW a/b (NO/NC)
C019 00(NO)/01(NC) 00
Selection
Intelligent output terminal setting

C021 Intelligent output 11 setting 00(RUN:running)/01(FA1:Frequency arrivaltype1 signal)/ 01

02(FA2:frequency arrival type2 signal)/03(OL:Overload advance
C022 Intelligent output 12 setting notice signal)/04(OD:Output deviation for PID control)/05(AL:Alarm 00
signal)/06(FA3:Only setting frequency)/08(IP:On instantaneous stop/
C026 Alarm relay output 09(UV:Under voltage)/11(RNT:RUN time over)/12(ONT:ON time 05
over)/
00(Output frequency)/01(Output current) /
C027 FM selection 03(Digital output frequency)/04(Output voltage)/ 00
05(Input electric power)/06(thermal load rate)/07(LAD frequency)
00(Output frequency)/01(Output current)/04(Output voltage)/
C028 AM selection 00
05(Input electric power)/06(thermal load rate)/07(LAD frequency)
00(Output frequency)/01(Output current)/04(Output voltage)/
C029 AMI selection 00
05(Input electric power)/06(Thermal load rate)/07(LAD frequency)
C031 Intelligent output 11 a/b 00(NO)/01(NC) 00
Output terminal state setting,

C032 Intelligent output 12 a/b 00(NO)/01(NC) 00

C036 Alarm relay output a/b 00(NO)/01(NC) 01
Overload advance notice
C040 00(On accel. And decel, constant speed)/01(Only constant speed) 01
Output level setting

signal output mode

Overload advance notice Inverter
C041 0.0-2.0*rated current(A)
level rated current
Frequency arrival setting
C042 0.00-99.99/100.0-400.0(Hz) 0.00
for acceleration.
Arrival frequency setting for
C043 0.00-99.99/100.0-400.0(Hz) 0.00
deceleration.
C044 PID deviation setting level 0.0-100.0(%) 3.0

1- 13
 Function Mode
Initial data
Code Function name L300P Setting range N ot e
-FE/-FU/-FR
C070 Data command 02(operator)/03(RS485)/04(option1)/05(option2) 02
Communicating 02(loop-back test)/03(2400bps)/04(4800bps)/
C071 04
transmission speed 05(9600bps)/06(19200bps)
Communication

C072 Communication code 1. -32. 1.

C073 Communication bit 7(7bit)/8(8bit) 7
C074 Communication parity 00(no parity name)/01(even parity)/02(odd parity) 00
Analog meter setting function

C075 Communication stop bit 1(bit)/2(bit) 1

Communication waiting
C078 0.-1000.(ms) 0.
time
Setting on
C081 O adjustment 0.-9999./1000-6553(10000-65530) forwarding
Setting on
C082 OI adjustment 0.-9999./1000-6553(10000-65530) forwarding
Setting on
C083 O2 adjustment 0.-9999./1000-6553(10000-65530) forwarding
C085 Thermistor adjustment 0.0 - 1000. 105.0
C086 AM offset adjustment 0.0 - 10.0(V) 0.0
C087 AMI adjustment 0. - 255. 80
Setting on
C088 AMI offset adjustment 0. - 20.0(mA) forwarding
RUN time/Power ON time
b034 level
0.-9999./1000-6553(10000-65530)hr 0.
b035 Operation direction restrict 00(Reverse is valid)/01(Only forward)/02(Only reverse) 00
00(Start reduced voltage time small)
b036 Start reduced voltage 06
-06(Start reduced voltage time large)
00(all display)/01(each function display)/
b037 Display selection 00
02(User setting / main setting)
b080 AM adjustment 0. - 255. 180
b081 FM adjustment 0. - 255. 60
b082 Start frequency adjustment 0.10-9.99(Hz) 0.50
b083 Carrier frequency setting 0.5-12.0(kHz) Derating enable, 3.0
00(Trip history clear)/01(Data initialization)/
b084 Initialize mode 00
02(Trip history clear + data initialization)
Country code for
b085 00(Interior)/01(EC)/02(USA) 01/02/00
initialization
Frequency scalar
b086 0.1-99.9 1.0
conversion factor
b087 STOP key enable 00(valid)/01(invalid) 00
Resume on FRS
b088 00(0Hz start)/01(Start f-equaling) 00
cancellation mode
b090 BRD usage ratio 0.0-100.0(%) 0.0
b091 Stop mode selection 00(deceleration stop)/01(Free-run stop) 00
00(Always ON)/01(ON during run, After power ON, then for 5 minutes
b092 Cooling fan control 00
on stop is implied.)
00(invalid)/01(valid<invalid during stop>)/
b095 BRD selection 00
02(valid<valid during stop>)
b096 BRD ON level 330-380/660-760(V) 360/720
00(invalid)/01(Positive temperature coefficient enable)/
b098 Thermistor selection 00
The others

02 (NTC enable)
b099 Thermistor error level 0. – 9999. (ohm) 3000.
C061 Thermal warning level 0. – 100. (%) 80
C091 Debug mode selection 00(No display)/01(Display) 00
C101 UP/DWN selection 00(No frequency data)/01(Keep frequency data) 00
00(Trip cancel during ON)/01(Trip cancel during OFF)/
C102 Reset selection 00
02(Valid only during trip<Cancel during ON>)
Reset f frequency matching
C103 00(0Hz start)/01(Start f-equaling) 00
selection
Set on
C121 O zero adjustment 0.-9999./1000-6553(10000-65530) forwarding
Set on
C122 OI zero adjustment 0.-9999./1000-6553(10000-65530) forwarding
Set on
C123 O2 zero adjustment 0.-9999./1000-6553(10000-65530) forwarding
1 s t allowable motor Set on
H003 0.20-75.0(kW) forwarding
selection
2 nd allowable motor Set on
H203 0.20-75.0(kW) forwarding
selection
H004 1 s t motor pole selection 2/4/6/8(pole) 4
H204 2 nd motor pole selection 2/4/6/8(pole) 4
H006 1 s t stabilized factor 0. - 255. 100.
H206 2 nd stabilized factor 0. - 255. 100.
Option1 operation selection
P001 00(TRP)/01(RUN) 00
on error
Option2 operation selection
P002 00(TRP)/01(RUN) 00
on error
Digital input option input
P031 00(operation)/01(option1)/02(option2) 00
mode selection(Acc/Dec)
U001 User1 selection no/d001-P031 no
U002 User2 selection no/d001-P031 no
U003 User3 selection no/d001-P031 no
U004 User4 selection no/d001-P031 no
U005 User5 selection no/d001-P031 no
U006 User6 selection no/d001-P031 no
U007 User7 selection no/d001-P031 no
U008 User8 selection no/d001-P031 no
U009 User9 selection no/d001-P031 no
U010 User10 selection no/d001-P031 no
U011 User11 selection no/d001-P031 no
U012 User12 selection no/d001-P031 no

1- 14
2. TROUBLE SHOOTING
2.1 Inverter trip contents, remedy, advice
Trip contents Digital
operator Remedy, advice
display
It’s one of INV failure by locked
While constant Load changed rapidly.
motor, fast ACC/DEC because big
Short circuit or earth contact (ground
current will be flown.
speed fault) in the motor or the motor cable.
By over current detection, INV will
shut the output by the hardware.
This detection will be done by AC While If fast deceleration is happening
CT. preset Decel time longer
Over current detection at deceleration
Over current will be detected about If fast acceleration is happening
output stage 200% of rated level on SJ300. While preset Accel time longer
Over current will be detected about Any motor locked, check the wires
150% of rated level on L300-p. acceleration High preset torque boost, reduce the
value
Is the preset DC injection brake level
others high
Any CT malfunction, any noise
INV is monitoring the output current, if the connected
motor was overload conditions, INV will detect the
overload, if the level was exceeded preset level, INV
will shut the output.
(E-thermal characteristic has deleting characteristic by Too heavy load
the output freq. If the freq. Is less than 5Hz, it has more Thermal level proper ?
Over load detection at
chance to have the trip. Perform above adjustment referring
output stage(with motor) Over current will be detected about 200% of rated level to d104, to reduce the electronic
on SJ300. thermal level.
If the load has big inertia moment, while ACC, there is a
possibility to disturb the ACC by the detection.
In this case, adjust torque boost if v/f control is
selected.
This detection is over voltage detection, but the
Any fast decel
condition is different from the normal over voltage trip.
Over voltage detection Busy running cycle
The difference is below. If the preset BRD %ED
Preset BRD%ED proper ? low ?
after BRD %ED was run level(d090) was run out, BRD circuit can not work and if
Perform above adjustment referring
DC bus voltage will detect the over voltage level, INV
out to d103, to reduce the BRD usage
will shut the output.
ratio.
If DC bus voltage is exceeded specific level by Any fast decel
generating energy from the connected motor, high Earth contact (ground fault) in the
incoming AC voltage, INV will shut the output. motor or the motor cable.
Over voltage detection (DC
The DC bus voltage level is Any back energy from the load
bus voltage) About 400VDC (200V class) Perform above adjustment referring
About 800VDC (400V class) to d102, so that the DC bus voltage
does not exceed the trip level.
INV uses EEPROM to preset parameters, if the
EEPROM was affected by external noise, abnormal
Any big noise near the INV
EEPROM (contradiction) heat, micro processor will detect the contradiction such
Ambient temp. is too high.
as sum check , INV will shut the output.

If DC bus voltage is low, INV can’t work properly Any incoming AC V drop
especially control circuit, in this case, INV will shut the Sufficient power capacity
Under voltage(DC bus output. Any thyristor failure
The DC bus voltage level is Perform above adjustment referring
voltage)
About 200VDC or less(200V class) to d102, so that the DC bus voltage
About 400VDC or less(400V class) does not exceed the trip level.
INV uses CT to detect motor current, if the CT outputs
unusual offset level while INV stop, INV will shut the
CT offset Any high offset signal of the CT
output.
The voltage level is about 0.6V or more.
If built in Micro processor works improper, if it detects
CPU(micro processor mis- Any big noise near the INV
failure, INV will shut the output.
Micro processor failure
operation)
If the intelligent terminal detects the input signal from
External(customer’s external devices, INV will shut the output. This Check the configuration, signal,
function/trip is customer’s selection. If EXT function is wiring, conditions
selection)
not selected, there is no chance to have the trip.
If INV is ready to start at power on, INV will shut the
USP(US version default or output. This function/trip is customer’s selection. If USP Check the configuration, signal,
function is not selected, there is no chance to have the wiring, conditions
customer’s selection)
trip.
Only at power on, INV will detect ground fault between
Earth contact (ground fault) in the
Ground default at power on INV and the connected motor, INV will shut the output.
motor or the motor cable., IGBT
If the motor remaining voltage exists, this detection
at output stage failure
doesn’t work.
If DC bus voltage is continuously exceeding specific
level more than 30 sec, INV will shut the output. Any high incoming voltage except
Incoming over voltage
The DC bus voltage level is deceleration
detection About 380VDC or above (200V class) implement input ACL
About 760VDC or above (400V class)
If Instant power failure 15ms or more happened, INV
Instant power failure will shut the output. If the instant power failure is longer Any incoming AC V drop
than preset allowable time or affordable control supply No contact failure in MCB,Mg?
detection
voltage time, INV will work as normal power off. This

2- 1
 means INV will re-start with the run command after the
long instant power failure.
If main circuit temp. was exceeded specific level such Any cooling fan failure, disturbance of
as high ambient temp., fan failure, INV will shut the the cooling such as dusty fin.
Over heat detection output. Installation vertical
The temp. is detected at heat sink over 100 Celsius. Ambient temp. high
If there was any communication error between micro Any big noise near the INV
Gate array(INV domestic
processor and gate array, or if gate array can’t detect Any IGBT failure
problem) IGBT’s turn on/off such as IGBT failure. Connection of flat cable/ribbon cable
If one of incoming 3 phase voltage was missed, INV will
Input phase failure Any missing phase
shut the output if the detect function was preset.
detection No contact failure in MCB,Mg?
The detection delay is about 1 sec.
If instant over current happened between INV and the
Short circuit or earth contact (ground
IGBT over current connected motor, INV will shut the output.
fault) in the motor or the motor cable
Under this INV trip, the detected phase is possible to
detection (equivalent as Any IGBT failure
refer at d105 display.
Any loose connection on main circuit
power module) Even retry function is preset, INV can not retry after this
such as power board
detection.
If motor over temp. happened by integrated thermistor’s Check the motor temp.
Thermister(customer’s
resistor value in the motor, INV will shut the output. Any thermistor failure in the motor
selection) Any noise in the thermistor signal
After INV output brake release signal, INV couldn’t
Is the brake working ON/OFF
Brake error (customer’s detect brake on/off within b124(waiting time for brake
Preset B124 too short
operation. (if b120(brake control switch) was preset
selection) Brake signal/connection OK
“01”)
Detection of connected option card 1. For more details,
Make sure the connection of the card
Option board 1 error 0–9 refer to the instruction manual of the card. - 1 Make sure if the usage is proper
Detection of connected option card 2. For more details,
Make sure the connection of the card
Option boad 2 error 0-9 refer to the instruction manual of the card.
- 2 Make sure if the usage is proper
Stand by condition because of low DC bus voltage such Any incoming AC V drop
as power off, INV will shut the output. No contact failure in MCB,Mg?
Power off/ waiting from AC The detection level is same as under voltage trip. Check the DC bus voltage
Perform above adjustment referring to
incoming voltage recovery
d102, so that the DC bus voltage does
not exceed the trip level.

2- 2
2.2 Option error
2.2.1 Feedback card
Trip Contents Digital
operator Remedy, advice
display
! Wire break and/or loose connection of the encoder signal.
! Check the wiring.
! Encoder failure or used the encoder which is not line driver
Encorder wire cut ! Replace recommended encoder.
output. , ! Set SWENC-2 “OFF” on the card.
! Used encoder without Z phase signal.
Detect when the motor rotation exceeds ! Tune Kp & J parameters which are
Over speed (Maximum frequency) × (over speed detection level (P026)) related to ASR to reduce the speed
, overshoot.
Detects when the deviation between actual position and position ! Increase position loop gain of APR.
Positioning error command exceeds 1,000,000 pulses. ! Decrease the input pulses per second of
, the pulse train input.

2.2.2 Digital option card

Trip contents Digital
operator Remedy, advice
display
To detect the option card error(failure)
Make sure the connection of the card
Option card error Make sure if the usage is proper
,

2.3 Check of the trip monitor contents

" Trip cause / Display explanation

Trip cause. Inverter status at tripping

Refer to 4.4.1
# Output frequency at trip (Hz) : While reset

1 : While standstill

: While deceleration

$ Output current at trip (A) : While constant speed

1
: While acceleration

: Running command ON while 0Hz command.

% DC bus voltage at trip (V)
: While start procedure
1

: While DC injection braking

& Accumulated running time until tripping (hr) : While overload limitation

' Accumulated power ON time until tripping (hr)

2.4 Check of the warning monitor contents

! Warning message is come out when there is any contradiction.

! Program lamp “PRG” is turned ON while warning (until the data are corrected).
2- 3
Warning message and automatic rewriting
Warning Related parameters condit Base
ion
001/ 201 Frequency upper limiter A061/A261 >
002/ 202 Frequency lower limiter A062/A262 > Maximum
004/ 204 Base frequency A003/A203 > frequency A004/A204
005/ 205 Output frequency F001, Multistage speed 0 A020/A220 >
006/ 206 Multistage speed 1~15 A021 ~ A035 >
012/ 212 Frequency lower limiter A062/A262 >
Frequency upper limiter
015/ 215 Output frequency F001, Multistage speed 0 A020/A220 >
A061/A261
016/ 216 Multistage speed 1~15 A021 ~ A035 >
021/ 221 Frequency upper limiter A061/A261 < Frequency lower limiter
025/ 225 Output frequency F001 , Multi stage speed 0 A020/A220 < A062/A262
031/ 231 Frequency upper limiter A061/A261 <
032/ 232 Frequency lower limiter A062/A262 <
035/ 235 Output frequency F001 , Multi stage speed 0 A020/A220 < Start frequency b082
036 Multi stage speed 1~15 A021-A035 <
037 Jogging frequency A038 <
Jump freq.1/2/3 ± Jump width
085/ 285 Output frequency F001 , Multi stage speed 0 A020/A220 <> A063 ± A064
A065 ± A066
A067 ± A068 (note 1)
086 Multi stage speed 1~15 A021-A035 <>

091/ 291 Frequency upper limiter A061/A261 >

092/ 292 Frequency lower limiter A062/A262 >
095/ 295 Output frequency F001 , Multi stage speed 0 A020/A220 > Free v/f 7 b112
096 Multi stage speed 1~15 A021-A035 >
Free v/f frequency 1-6 b100,b102,b104,b106,b108,b110 >
Free v/f frequency 2-6 b102,b104,b106,b108,b110 < Free v/f 1 b100
Free v/f frequency 1 b100 >
Free v/f 2 b102
Free v/f frequency 3-6 b104,b106,b108,b110 <
Free v/f frequency 1,2 b100,b102 >
Free v/f 3 b104
110 Free v/f frequency 4-6 b106,b108,b110 <
Free v/f frequency 1-3 b100,b102,b104 >
Free v/f 4 b106
Free v/f frequency 5,6 b108,b110 <
Free v/f frequency 1-4 b100,b102,b104,b106 >
Free v/f 5 b108
Free v/f frequency 6 b110 <
Free v/f frequency 1-5 b100,b102,b104,b106,b108 > Free v/f 6 b110
Free electronic thermal
Free electronic thermal frequency 2,3 b017,b019 <
frequency 1 b015
Free electronic thermal frequency 1 b015 > Free electronic thermal
120 Free electronic thermal frequency 3 b019 < frequency 2 b017
Free electronic thermal
Free electronic thermal frequency 1,2 b015,b017 >
frequency 3 b019
Warning is cleared when the setting fulfils the above condition.
Date will be changed automatically to the basic code.

(note 1)The jump frequency will be automaically re-written to the lowest jump frequency
(=jump frequency - jump width)

2- 4
3.Debug Mode
Additional displays as follows can be seen by turning Debug mode ON (C091 ->1).

3.1 Monitor
d101 : Output frequency monitor (Hz)
Monitor of the output frequency of the inverter.

d102 : DC bus voltage monitor (V)

Monitor of the DC bus voltage (VPN) of the inverter.

d103 : BRD ON monitor (s)

There is an integrated BRD circuit on 11kw and less for SJ300, and 15kW and less for L300P series.
Youcan find accumulated turning ON time for the integrated BRD transistor.

d104 : Electronic thermal monitor (%)

You can find the usage ratio of electronic thermal performance as %.

d105 : Trip cause monitor of gate array

There are 8 items of trips which are detected by the internal gate array and these items are transmitted to
MCU.

Bit7 bit6 Bit5 bit4 bit3 bit2 bit1 bit0

Gate array IGBT error iGBT error Over Over voltage Undervoltage iGBT error Option
error W phase V phase temperature (E07) (E09) U phase Ground fault
(E23) (E30) (E30) (E21) (E30) (E14)

Contents of d105 are expressed in HEX.

(Example 1)
20
20 (HEX) = 00100000 (BIN)
bit5 = “1” -> iGBT error (V phase)

(Example 1)
62
62 (HEX) = 01100010 (BIN)
bit1, bit5, bit6 = “1” -> iGBT error (U, V, Wphase)

3- 1
3.2 Parameter settings for inverter
Inverter (logic card) settings can be done as follows.

Code Function name Contents Initial setting

C195 Area code 00(JPN) /01(EU) /02(USA) Set before
shipment
C196 Capacity code 0.2(0.2kW) ~ 315.0(315kW) Set before
shipment
C197 Voltage code 200(200V class) /400(400V class/600(600Vclass) Set before
shipment
C198 Series code 00(SJ300) Set before
01(L300P) shipment

Be sure to perform initialization according to the instruction manual after change the data above.
Parameter b085 is prior to C195.

3-2
4. Maintenance and Inspection

4.1 Maintenance and Inspection

4.1.1 Daily inspection
Main check points to be done while operation are as follows.
(1) Whether the motor rotates as expected.
(2) Whether the installation condition have no problem.
(3) Whether there is no problem in cooling.
(4) Whether there is any abnormal vibration and noise.
(5) Whether there is any abnormal temperature rising and change in color.
(6) Whether there is any abnormal smell.

Measure the input voltage of the inverter by a tester while operation to confirm the followings.
(1) No frequent voltage fluctuation.
(2) All line voltages are balanced and stable.

4.1.2 Cleaning
Always keep the inverter clean.
Use soft cloth dipped with neutrality detergent or ethanol and wipe the dirty portion with care.

(note) Do not use such as acetone, benzene, toluene or alcohol which may damage the coating of the
inverter.

4.1.3 Periodical inspection

Check the portions where the inverter must not be in operation.
Please contact HITACHI for a periodical inspection.

(1) Is there any abnormality in cooling? ---- Cleaning of air filter.

(2) Tightening check and additional tightening. ---- Loose tightening of the screws and bolts could occur
due to vibrations and/or temperature changing. Be
sure to confirm carefully.
(3) Isn’t there any corrosion or damage in the conductors?
(4) Measurement of insulation resistance.
(5) Check and replace of cooling fan, DC bus capacitors, contactors and relays if necessary.

4- 1
4.2 Daily and annual maintenance

Interval
Item Contents Method Criteria
D A
Check ambient temperature, Ambient temperature:
Ambient Refer to
humidity, dust, corrosive gas, oil X -10 ~ +50°C (no icing)
Environment 2.1. Installation
Overall

mist, etc. No condensation

Devices Check for abnormal vibrations
X Visual inspection No abnormalities
overall and noise.
Power supply Check voltage between Measure the voltage between No abnormalities and
X
voltage input lines input terminals within specifications
Remove connector J61
Disconnect power line
Remove logic terminal
Megger check
Overall X Make short circuit R, S, T, U, > 5Mohm
(Power terminal - Earth)
V, W, P, PD ,N ,RB
Mains

Megger test between above

and earth
Check installation for looseness. X Tighten No abnormalities
Check for evidence of over
heating in the various X Visual inspection No abnormalities
components
Cleaning X
Conductors /
No change in shape? X Visual inspection No abnormalities
cables
No damage in coating? X Visual inspection No abnormalities
Terminal block No damage? X Visual inspection No abnormalities
Remove power cables
Refer to
Measure resistance;
Inverter / Tester check between each “5.5 How to measure
X Each input ⇔ P, N
Converter terminal inverter &
Each output ⇔ P, N converter“ portion
with 1ohm range

DC bus capacitor Check for leaking liquid X Visual inspection No abnormalities

Check for swelling X Visual inspection No abnormalities

85% or more of rated
Check for capacitance X With capacitance meter
capacitance
Check for stuttering noise during
Relay, contactor X Aural inspection No abnormalities
operation
No damage of contact? X Visual inspection No abnormalities
Check for cracks or
Resistors X Visual inspection No abnormalities
changes in color
Tolerance of within
No open circuit? X Tester check
±10% of rated value
Cooling

Check for abnormal Rotate manually Smooth rotation and

Cooling fan X
vibration and noise during power off no abnormalities

Check for dust X Visual inspection No abnormalities

Check the balance of the output Within 2% of voltage
Measure the output voltage
Control circuit

Operation check voltage of each phase to phase X difference between

between U, V and W
without motor. each phases.
Perform a sequence protection
operation test and make sure Simulate operation of the Each protection should
X
that there are no errors in the protection circuit be performed
protection and display circuits.
No illegible display;
display

Display No missing characters; X Visual inspection No abnormalities

LED

No segment failure of LEDs

Cleaning X
Meter Working correct? X X Visual inspection Displays correct value
Overall No abnormal vibration & noise? X Visual, aural inspection No abnormalities
Confirm the smell caused by
No abnormal smell? X No abnormalities
overheat, damage etc.
Motor

Measure resistance;
Insulation Megger check Each input ⇔ Earth
X > 5Mohm
resistance All terminals together - Earth With and without motor
cables

4- 2
4.3 Megger test
Disconnect all the wiring in case of megger test on external circuit, so that no test voltage is supplied to the inverter.
Use tester (high resistance range) for the test of control circuit. Do not use megger nor buzzer.
Megger test should be done only on the power (mains) portions. Do not perform megger test on control circuits.
(Use DC500V megger in case of megger test.)
In case of megger test on power terminals, disconnect short circuit material at connector “J61” located close to R0T0 terminal,
and connect R, S, T, PD, P, N, RB, U, V and W all together. Connect again the short circuit material to J61 after the test is
done.

Motor
P P N R
Power supply R U
S V IM
There must be no
power supply T M
connected
There must be no
J61 connection to the motor.

DC500Vmegger

Earth terminal Be sure to disconnect the short circuit

material for the megger test.

4.4 Withstand voltage test

Do not perform withstand voltage test.
Semiconductors that are used in inverter can be degraded when withstand voltage is performed.

4- 3
4.5 How to check inverter & converter portion
Inverter and converter module can be checked by using a tester.

(Preparation)
(1)Disconnect all the connected wires and devices to the power terminals (R, S, T, U, V, W, P, RB).
(2)Tester is to be set as 1ohm range.

(How to check)
Check the ON condition of each point shown below.

(note 1) Be sure to discharge DC bus voltage beforehand, which should be checked by DC bus voltage.
(note 2) Normally, the resistance shows ∞ in case of OFF mode.
In some cases resistance does not show ∞ due to the capacitance of DC bus capacitors.
Resistance shows 3ohm ~ 50ohm (depends on the tester voltage) in case of ON mode.
Resistance values may not be completely the same due to the electrical device (IGBT chip, diode chip…) difference.
But we can regard the result is okay if all the data are nearly the same.

Tester polarity Measure

(Red) (Blk) ment
R PD OFF Converter portion PD P RB Inverter portion
D1
PD R ON
S PD OFF TR1 TR3 TR5
D2
PD S ON
D1 D2 D3
Converter

T PD OFF
D3
PD T ON
R N ON R
D4 U
N R OFF
S N ON S
D5 V
N S OFF
T N ON C+
D6 T
N T OFF W
U P OFF TR7
TR1
P U ON
V P OFF
TR2 D4 D5 D6
P V ON
W P OFF TR4 TR6 TR2
Inverter

TR5
P W ON
N
U N ON
TR4
N U OFF
V N ON
TR6
N V OFF
W N ON
TR2
N W OFF
B RB P OFF
R P RB ON
D TR7 RB N OFF
N RB OFF
ON; Low resistance
OFF; High resistance

4- 4
4.6 Parts replacement
Inverter is consists from many electrical components. And inverter cannot work properly unless all of them
works normal. Electrical components in following table are the components which may degrade according
to the usage period.
HITACHI recommend to replace those electrical components periodically to avoid any expected failure caused by them.
Parts name Recommended Remarks
period for
replacement
Cooling fan 2 ~ 3 years Replace with fresh one.
DC bus capacitors 5 years Replace with fresh one. (Decide after inspection.)
Electrolytic capacitors 5 years Replace with fresh one. (Decide after inspection.)
on PCB
Relays - Inspection in advance

(1) Cooling fan

Lifetime of the cooling fan depends on the usage condition, however it is normally around 35,000 hours.
That means it is recommended to replace the cooling fan every 2 ~ 3 years in case the inverter operates
continuously. Of course it should be replaced immediately in case the abnormality is found.

(How to remove cooling fan for mold case)

c Remove terminal cover and front cover.
d Reconfirm that the charge lamp is turned OFF.
e Push both side of the cooling fan holder plate and pull out like following figure.
f Remove the connector for fan connection.

(How to fix cooling fan for mold case)

c Pay attention to the direction of the cooling fan.
d Connect the fan connector to J21 or J22 (depends on the model) on the power PCB.
e Fix the cooling fan holder board to the inverter main body.
f Fix the front cover and terminal cover.

Label side of
cooling fan

4- 5
(How to remove cooling fan for steel case)
c Remove terminal cover and front cover.
d Reconfirm that the charge lamp is turned OFF.
e Remove the all screws of the cooling fan case and pull out like following figure.
f Remove the connector for fan connection.

(How to fix cooling fan for steel case)

c Pay attention to the direction of the cooling fan.
d Connect the fan connector to J21 or J22 or J23 or J24 (depends on the model) on the power PCB.
e Fix the cooling fan case to the inverter main body.
f Fix the front cover and terminal cover.

(2) DC bus capacitor

Big capacitance of electrolytic capacitors are used in a DC bus line of the inverter as a smoothing circuit.
Due to the chemical reaction inside the capacitor, its lifetime highly depends on the ambient temperature
and usage condition. Replacement is recommended to be done in 5 years under normal usage condition.
Also, it should be anyway replaced with new ones when there is any abnormality is found or its capacity
becomes less than 85% of its rated capacitance.

(How to remove DC bus capacitor for mold case)

c Remove terminal cover.
d Reconfirm that the charge lamp is turned OFF.
e Remove blind cover.
f Remove all the screws connecting capacitor PCB and power PCB.
g Pull the capacitor PCB downwards.

4- 6
(How to fix DC bus capacitors for mold case)
c Put capacitor PCB onto the capacitor holder plate and put insulation sheet on it.
d Insert capacitor holder plate sliding along the ditch.
e Fix the capacitor PCB with screws.
f Fix terminal cover.

d c

(How to remove DC bus capacitor for steel case)

c Remove terminal cover.
d Reconfirm that the charge lamp is turned OFF.
e Remove all the screws connecting P,N BAR.
f Remove all the screws connecting capacitor case and inverter main body.
g Pull the capacitor case downwards.

(How to fix DC bus capacitors for steel case)

c Put capacitor onto the capacitor case and drive all the screws.
d Insert capacitor case sliding along the ditch.
e Fix the capacitor case with screws.
f Fix terminal cover.

4- 7
4.7 Unit replacement
Unit replacement can be done without rewiring of the logic signal.

(How to exchange)
c Remove terminal cover.
d Reconfirm that the charge lamp is turned OFF.
e Remove the screws at top, right and left portion.
f Plug out the logic terminal carefully.
g In case of plugging in to the new inverter, pay attention not to bend the connection pins.

4- 8
 SJ300-007HF Circuit Diagram

P
CIB
TM

R U
+ CTU
S V
+
T
W
Bus
N Capacitor CTW
TM
Board
G J61 Main Board

G J21 FA

J51
1 2 3 J1 28 29 30
To
Fin Flat Cable
R
1 2 3 J1 28 29 30

HITACHI POWE
OPT1C OPT
ALAR
H
RU PLU OPE Option Board
PR

Digital
Operator Logic Board
RU STOP/RESE Plug

FUN STR OPT2C OPT

Option Board
1 2 3 TMC 58 59 60

1 2 3 CN1 58 59 60
Control Terminal Board
SP SN RP SN FW 8 7 6 5 4 3 2 1 CM1 FM TH CM11 1 12 13 14 15 CM2 H O OI O2 L AM AM AL AL1 AL0

P24 PLC
 SJ300-004-007LF Circuit Diagram

RB

PD
CIB
TMP

R U
+ + CTU
S V
T
W
Bus
N CTW
Capacitor
TMN
Board
G J61 Main Board

G J21 FAN

J51
1 2 3 J1 28 29 30
To
Flat Cable
R Fin

1 2 3 J1 28 29 30

HITACH I OPT1C OPTXC

PLUG OPE Option Board

Digital
Operator
RUN STOP/RESE
Plug Logic Board
FUN 1 2 STR OPT2C OPTXC

Option Board
1 2 3 TMC 58 59 60

1 2 3 CN1 58 59 60
Control Terminal Board
SP SN RP SN FW 8 7 6 5 4 3 2 1 CM1 FM TH CM11 12 13 14 15 CM H O OI O L AM A AL2 AL1 AL0

P24 PLC
 SJ300-015-055HF Circuit Diagram

RB

PD
PIM
TMP

R U
+ + CTU
S V
+ +
T
W
Bus
N CTW
Capacitor
TMN
Board
G J61

G Min Board J21

FAN

J51
1 2 3 4 5 J1 28 29 30
To
Ro Fin Flat cable

1 2 3 4 5 J1 28 29 30

HITACH I OPT1C OPTXC

PLUG OPEC Option Board

Digital
Operator Logic Board
RUN STOP/RESE
Plug
1 2 OPT2C
FUN STR OPTXC

Option Board
1 2 3 4 5 TMC 55 56 57 58 59 60

1 2 3 4 5 CN1 55 56 57 58 59 60
Control Terminal Board
SP SN RP SN FW 8 7 6 5 4 3 2 1 CM1 FM TH CM111 12 13 14 15CM2 H O OI O2 L AM AM AL2 AL1 ALO

P24 PLC
 SJ300-015 - 055LF Circuit Diagram

RB

PD
PI
TMP

R U

S + + + + CTU
V
T
W
Bus
N CTW
Capacitor
TMN
Board
G J61

G Main Board J21 FAN

J51
1 2 3 J1 28 29 30
To
Fin Flat Cable
Ro
1 2 3 J1 28 29 30

HITACHI OPT1C OPTXC

PLUG OPEC Option Board

Digital
Operator Logic Board
RUN STOP/RESE
Plug
1 2 OPT2C
FUN STR OPTX

Option Board
1 2 3 TMC 58 59 60

1 2 3 CN1 58 59 60
Control Terminal Board
SP SN RP SN FW 8 7 6 5 4 3 2 1 CM1 FM TH CM111 12 13 14 15 CM2 H O OI O2 L AM AMI AL2 AL1 ALO

P24 PLC
 SJ300-075-110HF , L300P-110-150HFR Circuit Diagram
RB
PD
P

TMP PIM

R U
+ + + +
S V
+ + + +
T
W
Bus
N
TMN Capacitor
CT J21
Board
G J61

G Main Board
J22 FAN
J51

1 2 3 J1 28 29 30
To FAN
R Fin Flat Cable

1 2 3 J1 28 29 30

HITACH I OPT

Option Board
OPT1

PLUG OPEC Logic Board

STOP/RESE

1 2 Digital OPT
RUN operator
Plug Option Board
FUNC 1 2 STR3 TMC 58 59 60 OPT2

1 2 3 CN1 58 59 60
Control Terminal Board
SP SN RP SN FW 8 7 6 5 4 3 2 1 FM TH 12 13 14 15 H O OI L AL

P24 PLC CM1 CM1 11 CM2 O2 AM AM AL2 ALO

 Note: Control terminal symbol is SJ300.

SJ300-075-110LF , L300P-110-150LFR Circuit Diagram

RB

PD
PIM
TMP
R U

S + + + + + + + +
V
T
W
Bus
N
Capacitor
TMN Board CT
J21 FAN
G J61

G Main Board
J22 FAN

J51 1 2 3 4 5 J1 28 29 30
To
Ro Fin Flat Cable
1 2 3 4 5 J1 28 29 30

HITACH I OPT1 OPTX

RUN PLUG OPEC Option Board
PRG

Digital
operator Logic Board
RUN STOP/RESE
Plug
FUN 1 2 STR OPT2C OPTX

Option Board
1 2 3 TMC 58 59 60

1 2 3 CN1 58 59 60
Control Terminal Board
SP SN RP SN FW 8 7 6 5 4 3 2 1 CM1 FM TH CM1 11 12 13 14 15CM2 H O OI O2 L AM AMI AL2 AL ALO

P24 PLC Note: Control terminal symbol is SJ300.

 SJ300-150 - 220HF , L300P-185 - 300HFR Circuit Diagram

PD
J31
DM Board Thermistor
G DM J10
IGBT
G

R + + U
J11
S V
T + +
J12 W
N
R T CT J21
J52 J41 FAN
J52 J41
Main Board
J53 J22 FAN
R
J51
J54 T J1
To J61
Ro J55 Flat Cable

Control J1
Power
Board
HITACH I OPT1C OPTXC

PLUG OPEC Option Board

Digital
Logic Board
Operator
RUN STOP/RESE
Plug
FUN 1 2 STR OPT2C OPTXC

Option Board
TMC

CN1
Control Terminal Board
SP SN RP SN FW 7 6 5 4 3 2 1 CM1 FM TH CM111 12 13 14 15 CM2 H O OIO2 L AM AMI AL2 AL1 ALO

P24 PLC Note: Control terminal symbol is SJ300

 SJ300-150 - 220LF , L300P-185 - 300LFR Circuit Diagram

PD
J31 Thermistor
DM Board
G J10
DM
IGBT
G

R U
J11
S + + + + V
T
J12 W
N
R T CT J21 FAN
J52 J41
J52 J41
Main Board
J53 J22 FAN
R
J51
J54 T J1
To J61
J55 Flat Cable
Ro
Control J1
Power
Board OPT1C
HITACHI OPTXC

PLUG OPEC Option Board

Digital
Logic Board
Operator
RUN STOP/RESE
Plug
FUN 1 2 STR OPT2C OPTXC

Option Board
TMC

CN1
Control Terminal Board
SP SN RP SN FW 8 7 6 5 4 3 2 1 CM1 FM TH CM1 11 12 13 14 15CM2 H O OI O2 L AM AMI AL2 AL1 ALO

P24 PLC Note:

Control terminal symbol is SJ300.
J10 is installed only for SJ300-150LF
and L300P-185LFR.
 SJ300-300HF , L300P-370HFR Circuit Diagram

P
J3 Thermistor
PD
J56 J71
G
DM Board J32
DM J10 Thermistor

G IGBT
J56 J71
R + + U
J11
CTU
S V
T + +
J16 W
N CTW
R T CT Board
J52 J41
J52 J41 J21 FAN
Control
Power Board J53
Main Board
R FAN
T J54 J1
J23 FAN
J62 J55

J65 J64
J1
J65 J64
J62 HITACHI OPT1C OPTXC

PLUG OPEC Option Board

J51

To Digital
Logic Board
Operator
Ro J61 RUN STOP/RESE
Plug
Pre Control FUNC 1 2 STR OPT2C OPTXC
Power
Board Option Board
TMC

CN1
Control Terminal Board
SP SN RP SN FW 8 7 6 5 4 3 2 1 CM1 FM TH CM1 11 12 13 14 15 CM2 H O OIO2 L AM AMI AL2 AL1 ALO

Note: Control terminal symbol is SJ300

P24 PLC
 SJ300-300LF, L300P-370LFR Circuit Diagram

P
J31 Thermistor
PD
J56 J71
DM Board J32
G DM
Thermistor

G IGBT
J56 J71
R U
J11
CTU
S + + + +
V
T
J16 W
N CTW
R T CT Board
J52 J41
J52 J41 J21 FAN
Control
Power J53 Main Board
Board R J22 FAN
T J54 J1
J23 FAN
J62 J55 Flat Cable

J65 J64
J1
J65 J64
J62 HITACH I
OPT1C OPTXC

J51 PLUG OPEC Option Board

To Digital
Logic Board
Operator
Ro J61 RUN STOP/RESE
Plug
Pre Control FUN 1 2 STR OPT2C OPTXC
Power
Board Option Board
TMC

CN1
Control Terminal Board
SP SN RP SN FW 8 7 6 5 4 3 2 1 CM1 FM TH CM1 11 12 13 14 15 CM2 H O OI O2 L AM AMI AL2 AL1 ALO

Note: Control terminal symbol is SJ300.

P24 PLC
 SJ300-370- 550HF, L300P-450 - 550HFR Circuit Diagram

P J31 Thermistor

PD J32 Thermistor
J56 J71
G
DM Board J33 Thermistor
DM
G IGBT
J56 J71
R + + U
J11
CTU
S V
T + +
J16 W
N CTW
R T CT Board
J52 J41
J52 J41 J21 FAN
Control Main board
Power Board J53 J22 FAN
R
T J54 J1 J23 FAN

J62 J55 Flat Cable

J24 FAN
J65 J64
J1
J65 J64
J62 HITACH I OPT1C OPTXC

PLUG OPEC Option Board

J51

To Digital
Logic Board
Operator
Ro J61 RUN STOP/RESE
Plug
Pre Control FUN 1 2 STR OPT2C OPTXC
Power Board
Option Board
TMC

CN1
Control Terminal Board
SP SN RP SN FW 8 7 6 5 4 3 2 1 CM1 FM TH CM1 11 12 13 14 15 CM2 H O OI O2 L AM AMI AL2 AL1 ALO

P24 PLC Note: Control terminal symbol is SJ300.

 SJ300-370-450LF, L300P-450-550LFR Circuit Diagram

P J31 Thermistor

PD J32 Thermistor
J56 J71
G DM Board J33 Thermistor
THY
G IGBT
DM J56 J71
R U
J11
CTU
S + + + +
V
T
J16 W
N CTW
R T CT Board
J52 J41
J52 J41 J21 FAN
Control Main board
Power Board J53 J22 FAN
R
T J54 J1 J23 FAN

J62 J55 Flat Cable J24 FAN

J65 J64
J1
J65 J64
J62 HITACH I
OPT1C OPTXC

J51 PLUG OPEC Option Board

To Digital
Logic Board
Operator
Ro J61 RUN STOP/RESE
Plug
Pre Control FUN 1 2 STR OPT2C OPTXC
Power Board
Option Board
TMC

CN1
Control Terminal Board
SP SN RP SN FW 8 7 6 5 4 3 2 1 CM1 FM TH CM1 11 12 13 14 15 CM2 H O OI O2 L AM AMI AL2 AL1 ALO

P24 PLC Note: Control terminal symbol is SJ300.

 SJ300-550LF Circuit Diagram
J31 Thermistor
P
J32 Thermistor
PD
J56 J71
G
DM Board J33 Thermistor
THY
IGBT R1-R6
G
DM J71
R TUG U
TUE CTU
S + + + +
V
TXG
T
TXE W
N CTW
R T CT Board
Snubber Module
J52 J41
J52 J41 J21 FAN
Control
J53 Main Board
Power Board
R J22 FAN
T J54 J1
J23 FAN
J62 J55 Flat Cable

J65 J64
J1
J65 J64
J62 HITACH I
OPT1C OPTXC

PLUG OPEC Option Board

J51
To Digital
Operator Logic Board
Ro J61 RU STOP/RESE
Plug
Pre Control FUN 1 2 STR OPT2C OPTXC
Power
Board Option Board
TMC

CN1
Control Terminal Board
SP SN RP SN FW 8 7 6 5 4 3 2 1 CM1 FM TH CM1 11 12 13 14 15 CM2 H O OI O2 L AM AMI AL2 AL1 ALO

Note: Control terminal symbol is SJ300.

P24 PLC
Internal block diagram
No. English
1 CB circuit / DC bus capacitor circuit
2 CB board / DC bus capacitor board
3 Instantaneous power failure detection
4 Phase failure detection
5 Opt coupler / Photo coupler
6 Reference voltage
7 Inrush current limiting (circuit)
8 Thyrister drive circuit (Suppressing circuit)
9 Power supply for Thyrister gate
10 Control signal for Thyrister
11 BRD drive circuit (incl. Short circuit protection)
12 Control signal for BRD
13 Short circuit detection
14 Power supply for lower arm IGBTs
15 Drive circuit for lower arm IGBTs (incl.Short circuit detection)
16 Drive circuit for upper arm IGBTs (incl.Short circuit detection)
17 Power supply for U phase
18 Current detection for U phase
19 Current detection for W phase
20 Control power supply
21 Temperature detection
22 Control power supply
23 Power supply for GA (Gate Array)
24 Power supply for I/F (interface)
25 UV (Under voltage) detection
26 Instantaneous power failure detection
27 Dividing circuit
28 OV (Over voltage) detection
29 Voltage detection for earch phase
30 f,sita detection
31 Main PCB
32 High speed opt coupler
33 Isolation amplifier
34 30 connections between main PCB and logic PCB
35 "H" while BRD ON
36 Approx. 3.3V peak at rated current
37 "L" while Inverter trips
38 "L" while phase failure
39 Communication signal,operates while standstill
40 PWM signal
41 Approx. 6.4V at OV level
42 "L" while stopped by Gate suppressing
43 Signal for frequency matching
44 Control power supply for digital portion
45 Control power supply for analog portion
46 Power supply for I/F (interface)
47 "H" while instantaneous power failure
48 OC(Over current)detection
49 Hardware latch
50 25 control terminals
51 31 control terminals
52 Logic PCB