INVENTIO AG Technical Catalog

CH–6052 Hergiswil
Group: 1–11.100 VARIODYN 35/45/70 K 603106 E
Lead Office: EBI 21 Diagnostics 9738 Page 1 / 34

DR COMMISSIONING Sx / Cx 1–11.1/1

Contents: Page

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Legend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2 IVXVF 168.Q pcb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1 Diagnosis and Fault Clearance via LED on IVXVF pcb . . . . . . . . . . . . . . . . . . 5

2.2 Diagnosis via Three 7-segment Displays on IVXVF pcb . . . . . . . . . . . . . . . . . 6

2.3 Use of the Test Travel Control with S1, S2, S3 . . . . . . . . . . . . . . . . . . . . . . . . . 11

3 PGO 1683.Q pcb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.1 Diagnosis and Fault Clearance via LED on PGO pcb . . . . . . . . . . . . . . . . . . . 14

4 Print PVF 168.Q . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.1 Diagnosis and Fault Clearance via LED on PVF pcb . . . . . . . . . . . . . . . . . . . . 16

4.2 Diagnosis via Three 7-segment Displays on PVF pcb . . . . . . . . . . . . . . . . . . . 16

5 Print SKD105.Q . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.1 Diagnosis and Fault Clearance via LED on SKD pcb . . . . . . . . . . . . . . . . . . . 19

6 NSG pcb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.1 Diagnosis and Fault Clearance via LED on NSG pcb . . . . . . . . . . . . . . . . . . . 20

7 UKE....Q pcb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.1 Diagnosis and Fault Clearance via LED on UKE pcb . . . . . . . . . . . . . . . . . . . 22
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

8 Module Checking - VF 35/45/70 . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

8.1 Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

8.2 Safety Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

8.3 Removal of the Lower Front Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

to third parties.

8.4 Removal of the Upper Front Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Authorization: Processed Reviewed Released

Organizational unit: R&D–PS R&D–DR R&D–DR
Name: R. Zurbrügg Dr. E. K. Behr R. Hermann
Date:
Form. PS–TW 107E94

Signature:

Modification:
k603106e

Date:
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DR COMMISSIONING Sx / Cx 1–11.1/1

Contents: Page

9 Checking the WGR Charging Resistor . . . . . . . . . . . . . . . . . . . . 26

9.1 Changing the WGR Charging Resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

10 Checking the WBR Braking Resistor . . . . . . . . . . . . . . . . . . . . . 27

10.1 Changing the WBR Braking Resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

11 Checking the GR Rectifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

11.1 Changing the GR Rectifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

12 Checking the SKiiP Power Module . . . . . . . . . . . . . . . . . . . . . . . 29

12.1 Checking the Braking Chopper (IGBT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

12.2 Changing the Braking Chopper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

12.3 Checking the Inverter Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

12.4 Changing the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

13 Checking the d.c. link and the DCLI pcb . . . . . . . . . . . . . . . . . . 32

13.1 Changing the Capacitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

14 Checking for Earth Leakage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

15 Diagnostics Checktree for VARIODYN 35/45/70 Drives . . . . . 34

any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

to third parties.

Modification:
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Diagnostics for the Variodyn 35/45/70 Drive Units

1 Introduction
As a result of the high modularity of the new systems, fault detection can no longer be carried out by means
of a single infallible method. Nevertheless, detection can be simplified by dividing the process into four stages:
1st stage
Interpretation of the various visual displays on each pcb.
2nd stage
Checking of the power supply to the system.
Checking of the Main Input and Output signals of the pcbs.
3rd stage
Diagnosis via the SMLCD (Service Module with Liquid Crystal Display) - see relevant documentation.
4th stage
Diagnosis via the CADI (Computer Aided Diagnosis Instrument ) - see relevant documentation.

Note: This document deals only with the 1st stage. Stages 2,3 and 4 will be dealt with in other chapters
of the Field Manual.

1.1 Legend
The displays of the various LED states are always shown as follows:

LED lit

LED out (not lit)

LED blinking
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

to third parties.

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1st stage: Interpretation of the various visual displays on each pcb

2 IVXVF 168.Q pcb

A1 A2 A3
X2-1-4

2 IC5 (LSB) IC6

X18

24 V supply (RD) LED1

1
reset
(GN) LED2
X2-1-3

2 S1 S2 S3 Watchdog IC7 (MSB)

X17

12 V emergency
1
supply (YE) (YE) (YE)
(GN) LED3
VCC IC9 (LSB)
8 (GN)
LED4
DKFM DFM-U DFM-D POL IC12 (MSB)
X2-1-2

RE1-RUET (GN) LED5

X16

RE2-RTSC (GN) LED6

1 RE3-SB (GN) LED7

RE4 SGRMGB (GN) LED8 IVXVF 168.Q
S5
8
RE5-RTRT (GN) LED9
(YE)

RE6-RMVE (GN) LED10

X2-1-1
X15

RE7-SBNH (GN) LED11 JLF

RE8 (GN) LED12
(YE)
communications
1
X1-2-5 X1-2-4 X1-2-3 X1-2-2 X1-2-1
6 X13 1 8 X11 1 4 X09 1 5 X07 1 5 X05 1 Level 2 SMLCD
9 6 9 6
11 1
6 X14 1 8 X12 1 4 X10 1 5 X08 1 5 X06 1 Level 1 13
14 X19 1
2 4 1 12 2
5 X02 1 5 X01 1

X1-1-10 X1-1-9 X1-1-8 X1-1-7 X1-1-6 X1-1-5 X1-1-4 X1-1-3 X1-1-2 X1-1-1
Fig. 1: Layout IVXVF-Print

Function
Interface between the control and the frequency converter.
Components of the IVXVF pcb
any way nor used for manufacturing nor communicated

D
This design and information is our intellectual property.
It must without our written consent neither be copied in

13 light-emitting diodes
LED 1 (red) Reset
LED 2 (green) Watchdog
LED 3(green) Internal voltage monitoring +5 V
LED 4 (green) Supply voltage monitoring +24 V
LED 5 - 12 (green) Indicates whether the corresponding relay is energized or de-energized
LED 13 (yellow) Communication check.
D
to third parties.

3, 7-segment displays (A1, A2, A3)

Indicating the various system states at rest or in motion.

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D 5 push buttons (S1, S2, S3, S4, S5)

S1, S2, S3 Push buttons with built-in yellow LED’s for Test Travel Control (see 2.3)
S4 Push button for System Reset
S5 Druckknopf mit eingebauter gelber LED zur Aktivierung einer Lernfahrt
Figure 1 shows the LED normal state, when the Drive unit is at rest. The A2 and A3 displays indicate
that the car is at the 4th floor (for example).

2.1 Diagnosis and Fault Clearance via LED on IVXVF pcb

Normal state Functions Fault display Possible causes Fault rectification

LED 1 Visual RESET signal LED 1 – Triggering of watchdog signal – Check supply voltage level at
(red) (X 18) X2-1-4:
– Detection of overvoltage or un-
24 V dc
20%
dervoltage above/below 5 V.
Note: – Check that EPROM, EEPROM
The signal is maintained for
and RAM are correctly plugged in
400 ms and causes reinitialization
– Check peripherals supplied with
of the system
+5 V from pcb
LED 2 Visual watchdog LED 2 – Activation of RESET push- button – Check that EPROM, EEPROM
(green) signal on pcb and RAM are correctly plugged in
Note:
– System crash – An automatic system reset is car-
As soon as the watch-
ried out when a crash occurs
dog is triggered it
causes a system reset
LED 3 Visual display of inter- LED 3 – No 24 V dc supply to pcb – Check supply voltage at
(green) nal voltage 5 V dc (X 18) X2-1-4:
– No 5 V dc internal of pcb
+24 V
20%
LED 4 Visual display of sup- LED 4 – No 24 V dc supply to pcb – Check supply voltage at
(green) ply voltage (X 18) X2-1-4:
24 V dc +24 V
20%
LED 5 .. 12 Display of state of cor-
(green) responding relay
energized

de-energized
LED 13 Visual display of com- LED 13 – Poor wiring of lift bus – Check wiring and supply voltage
(yellow) munication between of lift bus
or – 5 V dc supply interrupted
subsystems (
4.4 V dc) according to installa-
tion wiring diagram
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

to third parties.

Modification:
Date:
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DR COMMISSIONING Sx / Cx 1–11.1/1

2.2 Diagnosis via Three 7-segment Displays on IVXVF pcb

Displays when power is first switched on and during installation.

3 displays 7 segments Explanations

A1 A2 A3 Display on switch-on. Initialization of the system.

IVXVF configuration. IVXVF loads the parameters

from its EEPROM or from the control.

PVF configuration. Check whether the PVF is

already configured. If not, the parameters are
transmitted via IVXVF to PVF.

Initialization terminated.

Commissioning ³ Ready for commissioning, a

learn trip may be activated.

Installation ³ Installation in progress. IMOF re-

moved. JRH released.

Installation ³ Installation in progress. IMOF re-

moved. JRH engaged.
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

Possible initial parameterization or installation displays.

to third parties.

Modification:
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Possible displays at Rest

A1 A2 A3

Display of selector position

A2 A3

Flashing display of number of last stored

error. Measure(s) to be taken according to
‘Description of IVXVF errors’ list J 155132E

Display of various possible sy-

stem states
Fig. 2: Displays at Rest

Displays of the various systems states

Display A1 Explanation

Installation ³ Installation in progress. IMOF jumper removed.

Preparation for learn trip. JLF has been pressed and IVXVF searches for lowest floor.
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

Learn trip ³ Learn trip in progress only up direction.

Releveling.
to third parties.

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DR COMMISSIONING Sx / Cx 1–11.1/1

Display A1 Explanation

Normal service, ready to receive a destination.

JRH engaged. Travel possible from machine room.

JREC engaged. Travel possible from car roof (Inspection control).

Synchronization travel

Fault: no travel possible due to a fault in an external component (such as JHC, JHM,
PVF etc.).

Acceptance: Special acceptance test for Hand over of the lift.

IVXVF blocked. IVXVF is released again after a certain time.

any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

IVXVF dead - This state can only be cleared by a RESET.

Test Travel Control activated. The destination floor appears at A2 and A3.
to third parties.

Displays of the various systems states.

Modification:
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Possible displays during operation

A1 A2 A3

Display of various phases of

travel reference curve

Display of direction

No direction

Up direction

Down direction

Display of the various system

states (see previous display A1)

Fig. 3: Possible displays during operation

any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

to third parties.

Modification:
Date:
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7-Segment Display, Decimal point indicators

A1 A2 A3

Information about PHNR-D

PHNR-D illuminated
PHUET (PHNR-D inside the vane)
PHS out
(PHNR-D outside the vane)

Information on Shaft information PHS

PHNR-D
illuminated
PHUET
(PHS inside the vane)
PHS
out
(PHS outside the vane)

Indication that lift is at floor " 15 mm

A2 ³ illuminated


A3 ³ illuminated

Information on Shaft information KSE

Floor N

1
KSE

TOP flashing ] 50 pulses/min

S
0
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

1 MIDDLE illuminated

S
KSE

0 BOTTOM flashing ] 25 pulses/min

to third parties.

Floor 1

Fig. 4: 7-Segment Display, decimal point indicators

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2.3 Use of the Test Travel Control with S1, S2, S3

This control allows reservation of a single lift in a group, from the machine room. In simplex mode, external
calls are cancelled or blocked. After a travel, the doors are kept closed.
Function of the Test Travel Control

(YE) (YE) (YE)

DKFM DFM-U DFM-D

Fig. 5: Push buttons on the IVXVF pcb

1. Activation
DKFM button can be pressed anytime the elevator is at standstill. The LED lights up, indicating that the Test
Travel Control is switched on.

2. Up travel
Keep DFM-U pressed ³ the display on IVXVF indicates the destination floor n. Release DFM-U, its yellow
LED lights up and the lift moves towards the top floor.

3. Down travel
Keep DFM-D pressed ³ the display on IVXVF indicates the destination floor. Release DFM-D, its yellow LED
lights up and the lift moves towards the bottom floor.

Note: To send the car to an intermediate floor, the destination floor can be selected before releasing DFM-U
by pressing DFM-D to decrement n...1, and DFM-U to increment 1...n.

any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

to third parties.

Modification:
Date:
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DR COMMISSIONING Sx / Cx 1–11.1/1

3 PGO 1683.Q pcb

x 15 x 17 x 19 x 21 x 23 x 25 x 27

10

10
1 10 1 10 1 10 1 8 1 8 1 8 1 8

x 16 x 18 x 20 x 22 x 24 x 26 x 28
x 13

x 14
1 10 1 10 1 10 1 8 1 8 1 8 1 8
1

1
8

8
x 13

x 14

X 30 IC27 IC28 IC25 IC24 IC33

1

Connector SMLCD
4
x 10

BE7 BE6
1

(RD)
LED16
DKFM

PGO1683.Q
(MSB)
(GN)
F (LSB) (MSB) (LSB) (MSB)
S4

LED15
(GN)
DFM-D

LED14
F
S2

(GN)
LED13
(GN)
DFM-U

LED12
F
S1

JLF

RESET
S6
(GN)
LED11

S5 S3
(GN)
LED10
LED8

LED6

LED4

LED2

LED1
LED9

LED7

LED5

LED3
(GN)

(GN)

(GN)

(GN)

(GN)
(GN)

(GN)

(GN)

(GN)
RE8

RE6

RE4

RE2

RE1
RE9

RE7

RE5

RE3

CADI
Drive Servitel
x9 x8 10 x6 1 8 x4 1 8 X2 1 X 32 RS232 X 29 RS232
8 1 7 1
8 x7 1 8 x5 1 4 X3 1 8 X1 1

Fig. 6: Layout of the PGO 1683.Q pcb

Function
D Elevator control
D Interface to car, floors and hoistway
D Interface to the drive subsystem.

Components of the PGO 1683.Q pcb

any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

D green LED 1 ... 9 corresponding to Relay RE1-9

LEDs indicate the state of the corresponding relay.
D Control LED 10 ... 16
LED 10 (green) Internal voltage monitoring +5 V (VCC)
LED 11 (green) Voltage monitoring +24 V (P02)
LED 12 (green) Voltage monitoring +24 V (P01)
LED 13 (green) Voltage monitoring +24 V (P03)
to third parties.

LED 14 (green) Internal voltage monitoring +12 V (VDD)

LED 15 (green) Watchdog
LED16 (red) Error

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D 5 push buttons (S1, S2, S3, S4, S5)

S1, S2, S3 Push buttons with built-in yellow LED’s for Test Travel Control
S5 Push button for System Reset
S6 Push button for activation of Learning Travel
D DIP switch
S3 Not used
D Jumpers BE6 and BE7

BE6

R161
Selection of PT100
BR11 (VM-Motor)
BR12
R162

BE7

BE6

R161
BR11 Selection of KD150
(FM-Motor)
BR12
R162

BE7

Fig. 7: Set jumpers BE6 or BE7 depending on the type of hoisting motor
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

to third parties.

Modification:
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3.1 Diagnosis and Fault Clearance via LED on PGO pcb

Normal state Functions Fault display Possible causes Fault rectification

LED 1 - 9 Display state of the
corresponding relay
(green) energized
de-energized
LED 10 Display of internal LED 10 – Fuse SI2 faulty – Check fuse SI2 4A/250 V with an
voltage: 5 V dc – No 19.9 V ac ohmmeter
– No 12 V dc (NSG) to pcb – Check supply voltage at X6.1-2: 1
(green) Vcc
9.9 V ac ±10%
– Check supply voltage from NSG.
LED 11 Display of internal LED 11 – No internal 24 V dc on P02 – Check voltage for P02 at
voltage: – Fuse SI4 faulty X13.1 of pcb:
(green) P02 24 V dc for P02 – Fuse SI2 faulty 24 V dc +20%/- 21%
– No 19.9 V ac to pcb – Check fuse SI4 2A/250 V with an
ohmmeter
– Check fuse SI2 4A/250 V with an
ohmmeter
– Check supply voltage at X6.1-2:
+19.9 V ac ±10%
LED 12 Display of internal LED 12 – No internal 24 V dc on P01 – Check voltage for P01 at
voltage: X1.1 of pcb:
– Fuse SI2 faulty
(green) P01 24 V dc for P01 24 V dc +20%/- 21%
– No 19.9 V ac to pcb
– Check fuse SI2 4A/250 V with an
ohmmeter
– Check supply voltage at X6.1-2:
+19.9 V ac ±10%
LED 13 Display of internal LED 13 – No internal 24 V dc on P03 – Check voltage for P03 at
voltage: X23.8 of pcb:
– Fuse SI6 faulty
(green) P03 24 V dc for P03 24 V dc +20%/- 21%
– Fuse SI2 faulty
– Check fuse SI6 2A/250 V with an
– No 19.9 V ac to pcb ohmmeter
– Check fuse SI2 4A/250 V with an
ohmmeter
– Check supply voltage at X6.1-2:
+19.9 V ac ±10%
LED 14 Display of internal LED 14 – Fuse SI2 faulty – Check fuse SI2 4A/250 V with an
voltage: ohmmeter
– No 19.9 V ac
12 V dc
(green) Vdd – Check supply voltage at X6.1-2:
– No 12 V dc (NSG) to pcb
19.9 V ac ±10%
– Check supply voltage from NSG.
LED 15 Watchdog signal LED 15 – Activation of RESET push- button – Check that EPROM, EEPROM
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

Note: on pcb and RAM are correctly plugged in

(green) As soon as the watch-
– System crash – An automatic system reset is
dog is triggered it
carried out when a crash occurs
causes a system reset
LED 16 ERROR signal LED 16
Error/drive blocked/PCT or SCT faulty
(red)
After double reset (ca. 2 Hz for a
few seconds)
Parameter download active (ca. 0.5 Hz)
to third parties.

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4 PVF 168.Q pcb

X1-1-1 X1-1-2 X1-1-3 X1-1-4 X1-1-5 X1-1-6 X1-1-7

2 12 2 20 2 12
1 X3 8 1 X4 12 X5 11 X6 9 6 X8 11
1 X9 6
1 1 19 5 X7 1
1

Relay outputs Relay inputs Dc link Driver actuator RS 232 IVXVF Tacho V
IGBT RS 485
RE1 RE2 RE3 RE4
5

Set jumpers BE1 and BE3

VFVE to connect to PGO
BE1
SGRW SGR RES1
1683.Q via RS232 BE2
20 19 BR1
Set jumpers BE2 and BE4 BE3
X4-1-2

to connect to IVXVF via BE4

X2 SUPPLY RS485

2 1
PRUM1.Q 3
X4-1-1

12 11

X1 CURRENT
MEASUREMENT Capacitor S1 S2
2 1
2

PVF
4 (RD) (BU)
A1 A2 A3
ENTER SELECT

ÌÌÌÌÌÌ
BR2
BR3
BR4

VF35 remove bridges

from BR2, BR3, BR4,
BR5, BR6, BR7
R70
R71
R72

VF45 remove bridges 1

from BR2, BR3, BR5,
BR6
EPROM1/H

EPROM2/L
R82
R83
R84

VF70 (SKiiP) remove RESET

bridges from BR3, BR6 RAM RAM LED1 LED2
BR5
BR6
BR7

S3
(GN) (GN)
IC76 IC77 PWOK WATCHDOG
IC78 IC79

Fig. 8: State of LED and display with drive unit at rest

Function
Regulation of the frequency converter.

Components of the PVF pcb

D 2 light-emitting diodes 1
LED 1 (green) Internal voltage monitoring +5 V
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

LED 2 (green) Watchdog

D three 7-segment displays (A1, A2, A3) 2

Display of the various regulating states at rest or in motion

D 3 push buttons (S1, S2, S3) 3

S1 and S2 Display reset, press S1 and S2 simultaneously
S3 System reset
to third parties.

D Check that bridges BR2 ... BR7 4 are correctly set according to fig. 8,
D Check that jumpers BE1 ... BE4 5 are correctly set according to fig. 8.

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4.1 Diagnosis and Fault Clearance via LED on PVF pcb

Normal state Functions Fault display Possible causes Fault rectification

LED 1 Display of internal LED 1 – No 5 V dc supply from UKE pcb – Check LEDs on UKE..
(green) voltage: + 5 V dc
– Short-circuit detected – Check peripherals supplied with 5
V (Vcc) Example:
Tacho IG2000
– Note:
If the 5 V voltage falls below 4.5 V,
an automatic reset occurs
LED 2 Watchdog signal LED 2 – No PWOK signal from UKE. – Check LEDs on UKE pcb
(green) Note:
– An automatic system reset is car-
As soon as the
– System crash ried out when a crash occurs
watchdog is triggered
it causes a system
reset

4.2 Diagnosis via the Three 7-segment Displays on PVF pcb

Possible displays on initial switch-on
7–segment displays Explanation
A1 A2 A3 A1 A2 A3

Various phases of the initialization cycle (b5 to b0)

...
Not yet parameterized. The display flashes.
No travel permitted before the parameters are sent to the PVF.

The converter is at rest and ready to operate.

any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

to third parties.

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Possible indication during operation

7–segment displays Explanation

Initialization of travel. The start message has been received, the

software checks the start conditions.

Field excitation. The converter produces a current which creates

the necessary field for holding the car.

PVF software awaiting speed reference value message.

Acceleration phase.

Constant-speed phase.

Deceleration phase.

Low constant speed. The actual speed is less than 0.35 m/s.

Stopping phase. The speed reference value is equal to zero.

Possible Indication, elevator at Rest and ready to operate

Error display. Flashing display of last stored error.
Measure to be taken according to ‘Error Description PVF’
... J 155 133 E.

The converter is at rest and ready to function.

any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

to third parties.

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5 SKD105.Q pcb

Measuring points LED5

in safety circuit X1 D5
RE5
8 R5 Supply 24
N. C.
LED4 V dc ± 20%
110 V ac 7 X2
D4
neutral RE4
T5 6 R4 1 P0
LED3 2 M0
T4 5 D3 3 N. C.
RE3 Output 1
T3 4 R3 4
LED2 5 Output 2
T2 3 Output 3
D2 6
RE2 Output 4
T1 2 R2 7
110 V ac LED1 8 Output 5
1
neutral D1
24 V dc Outputs to
RE1 R1
elevator control

SKD 105.Q

Fig. 9: Layout of SKD105.Q pcb with state of the LED when safety circuit is completely closed

Function
Safety circuit diagnosis.
Components of SKD pcb
D 5 green LED.
LED that do not light indicate where the safety circuit is interrupted.
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

to third parties.

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5.1 Diagnosis and Fault Clearance via LED on SKD pcb

Normal state Functions Fault display Possible causes Fault rectification

LED 1 Monitoring of safety LED 1 – JTHSK triggered – Check that 110 V ac
10 % is
(green) circuit up to point T1 present at output 5 and 3 of trans-
– Contact of relay RKPH open.
(phase control). former TS.
– Check whether green LED on
relay RKPH is lit. If not, check
presence of three-phase mains
(400 V ac
10%) at output of
JTHS.
LED 2 Monitoring of safety LED 2 – Safety circuit open between mea- – According to schematic circuit
(green) circuit between points suring points T1 and T2. diagrams, check contacts bet-
T1 and T2 (slack rope ween T1 and T2: JHSG, KSSBV
contacts and pit etc.
switch).
LED 3 Monitoring of safety LED 3 – Safety circuit open between mea- – According to schematic circuit
(green) circuit between points suring points T2 and T3. diagrams, check contacts bet-
T2 and T3 (contacts ween T2 and T3: JHC1, JHCT,
on car roof). JHC, JREC, KF, KF1, KNE, etc.
LED 4 Monitoring of safety LED 4 – Safety circuit open between mea- – According to schematic circuit
(green) circuit between points suring points T3 and T4. diagrams, check contacts bet-
T3 and T4 (contacts ween points T3 and T4: KBV, KP,
machine room, bottom KPG, KTS etc.
of pit and well (KTS)).
LED 5 Monitoring of safety LED 5 – Safety circuit open between mea- – According to schematic circuit
(green) circuit between points suring points T4 and T5. diagrams, check contacts bet-
T4 and T5 (KTC). ween T4 and T5: KTC, KTC1 ...
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

to third parties.

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6 NSG pcb

X2 Press buttons SI1 and SI2 to reactivate protective

circuit breaker
SI2
SI1
LED3 Output 12 V dc

LED2 Charging

LED1 Mains supply

NSG
X1 = supply 230 V ac

X2 = output 12 V dc

X1

Fig. 10: Normal state of the LEDs, when the battery is charged

Function
Emergency power supply 12 V dc to alarm, emergency car lighting and elevator control pcb.
Components of NSG pcb
D 2 protective circuit breakers
SI1: circuit breaker 4 A; protective circuit breaker on 230 V ac supply
SI2: circuit breaker 2 A; protects 12 V dc output voltage for alarm, control pcb PGO and safety lighting
in the car

6.1 Diagnosis and Fault Clearance via LED on NSG pcb

Normal state Functions Fault display Possible causes Fault rectification

LED1 ON Display of 230 V ac LED1 – No 230 V ac supply from transfor- – Check transformer output voltage
(green) supply from transfor- mer
– Check circuit breaker SI1 on NSG
mer
– Defective circuit breaker SI1 on
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

NSG

LED1 OFF Battery charged

(yellow)
Battery charging
ON

LED3 ON Display of output LED 3 – Circuit breaker SI 2 on NSG faulty – Check circuit breaker SI2 on NSG
(green) voltage 12 V dc.
to third parties.

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7 UKE....Q pcb

1 x4 12

RE1

LED1 PWOK green-

LED2 ES red
DC/DC-
converter DC/DC- LED3 SK yellow
converter LED4 SYM red
±15 V LED5 DRV red
+5V

UKE.. .Q

Fig. 11: Layout of UKE pcb: State of LED with drive unit at rest and ready to operate (PVF displays F00)

Function
D Generation of the necessary voltages for the regulation PVF pcb
D Detection of earth leakage current
D Indicates inverter or brake chopper fault
D Detection of unbalanced voltage in the capacitor bank
D Blocking the inverter IGBTs on error or on an external signal.

Components of UKE pcb

D 5 visual display LEDs
LED 1 (green) PWOK - checking the presence of supplies:
- VCC (+ 5 V ± 5%) common GND
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

- VGG (+15 V ± 5 %)
- VFF (-15 V ± 5 %)
- VKK (+24 V)
LED 2 (red) ES - earth current
LED 3 (yellow) SK - safety circuit - indicates state of the RSK, RSK1 and SH relays of the
safety circuit and the blocking state of the inverter IGBTs.
LED 4 (red) SYM - symmetry fault of d.c. link voltage
to third parties.

LED 5 (red) DRV - inverter or braking chopper fault. Supply undervoltage or short circuit.

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7.1 Diagnosis and Fault Clearance via LED on UKE pcb

Normal state Functions Fault display Possible causes Fault rectification

LED 1 PWOK Displays presence of LED 1 – Detection of undervoltage of one – Check the supply voltage at
internal voltages or more of the following supplies: UKE X4.1 - X4.2:
Vcc, Vff, Vgg, Vkk. 21.8 V ac or 24 V dc
(green)
LED2 ES No leakage current LED2 – Earth leakage current detected – Check drive for earth leakage
detected current
– Short circuit detected between
(red) d.c. link and ground.
LED 3 SK Indicates safety circuit LED3 – Safety circuit relay RSK de-ener- – Check safety circuit on RSK,
open (drive ready to fault when lit gized RSK1 and SH
(yellow) operate) during a trip
– Check contactor SH
Indicates safety circuit LED3 – Defective contactor SH
closed fault when not lit – Defective RSK.
(drive operates) at standstill (F00
on PVF).
LED4 SYM D.c. link voltage sym- LED4 – Unbalanced voltage on the dc link – Check DCLI pcb
metry capacitors
– Check capacitor bank (CKZ).
(O.K. when not lit).
(red) – Defective capacitor in the dc link
– Defective resistor on the DCLI
pcb.
LED5 DRV Displays state of the LED5 – No supply on SKiiP power module – Check the supply voltage at
SKiiP power module. UKE X4.1 - X4.2:
– Supply or internal voltage on
Displays supply 21.8 V ac or 24 V dc
(red) SKiiP is less than 17 V
undervoltage – Check SKiiP power module
– Short circuit detected between
Displays short circuit emitter and collector of an IGBT. – Check motor connection
(inverter and brake
chopper IGBT).
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

to third parties.

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8 Module Checking - VF 35/45/70

The following modules can be easily checked using the equipment in 8.1:
D the WGR charging resistor
D the WBR braking resistor
D the rectifier
D the SKIIP power module
D the d.c. link
D earth leakage current..

8.1 Equipment Required

D Tools to remove the protective cover
D Multimeter with internal resistance > 25 k
and reading range > 500 V dc, diode and continuity tester,
ohmmeter and insulated probe tips.

8.2 Safety Requirements

WARNING!
The power supply must be switched off. An additional waiting time of at least 4 minutes
must also be observed before any work is started on the cabinet.
This waiting time allows the dc link capacitors to discharge. Use a voltmeter on UKE X4.3
(+) and X4.5 (–) to check the voltage of the dc link.
Since the voltage is divided 1:100 on the DCLI, the reading must show less than 0.5 V dc
(corresponds to < 50 V dc on d.c. link).

UKE... 1 3 5 12

X4

Do not remove the cover unless the

V dc reading shows less than 0.5 V dc.
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

Fig. 12: Measuring od dc Link Voltage

to third parties.

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8.3 Removal of the Lower Front Cover

To access the terminals of the braking resistor and charging resistor, remove the lower front cover.

remove screws

When replacing front cover,

check that cover fits correctly
into the 4 flaps

remove lower front cover

remove screws

Fig. 13: Position and layout of the protective lower front cover

Procedure:
D JH OFF,
D Wait at least 4 min. (discharge time of d.c. link) and check with voltmeter on UKE (see 8.2!),
D Remove the 6 screws (see Fig. 13 above) and remove the lower front cover,
D After installation of components, replace the lower front cover. Be sure to check that the cover fits
correctly into the four flaps.
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

to third parties.

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8.4 Removal of the Upper Front Cover

To gain access to the power module and the d.c. link, it is necessary to remove both the upper and the lower
front cover.

remove screws
remove upper front cover by
pushing up and pulling forward

PVF

disconnect X2 X1 PVF

check
UKE
correct
X2 UKE
fitting

remove shielding clip and re-

remove screws install after mounting

Fig. 14: Position and layout of the upper protective cover

Procedure:
D Switch JH OFF,
D Wait at least 4 min. (discharge time of d.c. link) and check with voltmeter on UKE (see 8.2!),
D Remove the lower front cover as described in section 8.3,
D Disconnect all connections to the UKE and PVF pcb. There are 11 connections leading off the panel,
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

D Remove the screws (see Fig. 14 above) and remove the upper front cover,
D To remount the covers, proceed in reverse order. Check that the covers fit correctly into the flaps.
to third parties.

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9 Checking the WGR Charging Resistor

Variodyn 35, Variodyn 45 and Variodyn 70 all have the same WGR charging resistor.
Procedure:
D Remove the lower front cover as described in section 8.3,
D Switch multimeter to ‘Ohm’ setting,
D Take a reading of the value of the WGR charging resistor (should be between 9 and 11 W).

GR

WGR

10
1 3 5 0 20 1 3 5
SGR SGRW
W
2 4 6 Ohmmeter 2 4 6

FEN

Fig. 15: Position and layout of the charging resistor WGR

If the reading is not between 9 W and 11 W, the WGR charging resistor is faulty.

9.1 Changing the WGR Charging Resistor

For replacement, see TK Maintenance (brown); K 603 070 E.
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

to third parties.

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10 Checking the WBR Braking Resistor

Procedure:
D Remove the lower front cover as described in chapter 8.3,
D Switch multimeter to ‘Ohm’ setting,
D Take a reading of the resistance between terminal 1 and terminal 2 of the braking resistor terminal block
X40 and compare with the values given in the following table:
Inverter type Value of WBR Braking
Resistor
VARIODYN 35 13 ... 17

VARIODYN 45 13 ... 17

VARIODYN 70 6,5 ... 8,5

If the reading is out of the given range, the WBR braking resistor is faulty.

to the power module 10

0 20


Ohmmeter
1 2

X 40

WBR

Fig. 16: Position of the braking resistor terminal

any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

10.1 Changing the WBR Braking Resistor

For replacement, see TK Maintenance (brown); K 603 070 E.
to third parties.

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11 Checking the GR Rectifier

Procedure:
D Remove the upper front cover as described in chapter 8.4,
D Switch multimeter to ‘Diode’ setting,
D Check rectifier according to the following table.

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Rectifier connections Multimeter reading should be

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
With positive lead at 5, 0,3 to 0,6 V

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
negative lead to 6, 7, 8

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
With negative lead at 5, U > 1,4 V

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
positive lead to 6, 7, 8

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
With positive lead at 9, U > 1,4 V
negative lead to 6, 7, 8

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
With negative lead at 9,
positive lead to 6, 7, 8
0,3 to 0,6 V

If for any reading, the voltmeter indicates a much lower value than that shown in the table, the rectifier is faulty.

5 9
- +
GR

X X X
6 7 8

Fig. 17: The rectifier on the bottom of the SKiiP power module
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

11.1 Changing the GR Rectifier

Since the rectifier is not a separate spare part, the SKiiP module has to be replaced.
For replacement, see TK Maintenance (brown); K 603 070 E.
to third parties.

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12 Checking the SKiiP Power Module

12.1 Checking the Braking Chopper (IGBT)

Procedure:
D Remove the upper front cover as described in chapter 8.4,
D Disconnect the braking resistor WBR at terminal block X40 (see Fig. 16)
D Switch multimeter to ‘Diode’ setting
D Check braking chopper IGBT readings according to the following table

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
SKiiP terminals Multimeter reading should be

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Positive lead at 4,

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
negative to 10
0,2 ... 0,4 V

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Positive lead at 4,

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
negative to 11
U > 1,4 V

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Negative lead at 4, U > 1.4 V

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
positive to 10

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Negative lead at 4, 0,2 ... 0,4 V
positive to 11

If the voltmeter indicates a much lower value for any reading than that shown in the table, the IGBT is faulty.

SKiiP power module

1 W - 17
+ 16

2 V - 15
Inverter
+ 14

3 U - 13
+ 12

4 - 11
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

Braking
Chopper + 10
5 9
- +
GR
X X X
6 7 8
to third parties.

Fig. 18: Layout and position of the braking chopper IGBT

12.2 Changing the Braking Chopper

Since the braking chopper is not a separate spare part, the SKiiP module has to be replaced.
For replacement, see TK Maintenance (brown); K 603 070 E.

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12.3 Checking the Inverter Section

Procedure:
D Remove the upper front cover as described in chapter 8.4,
D Switch multimeter to ‘Diode’ setting
D Check inverter IGBT (W) according to the following table.

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
SKiiP terminals Multimeter reading should be

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Positive lead at 1,

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
negative to 16
0,2 ... 0,4 V

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Positive lead at 1,

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
negative to 17
U > 1,4 V

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Negative lead at 1,

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
positive to 16
U > 1,4 V

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Negative lead at 1,

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
positive to 17
0,2 ... 0,4 V

D Check inverter IGBT (V) according to the following table

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
SKiiP terminals Multimeter reading should be

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Positive lead at 2,

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
negative to 14
0,2 ... 0,4 V

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Positive lead at 2, U > 1,4 V

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
negative to 15

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Negative lead at 2, U > 1,4 V

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
positive to 14

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Negative lead at 2, 0,2 ... 0,4 V
positive to 15

D Check inverter IGBT (U) according to the following table

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
SKiiP terminals Multimeter reading should be

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Positive lead at 3,
negative to 12
0,2 ... 0,4 V

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Positive lead at 3, U > 1,4 V
negative to 13

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Negative lead at 3,

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
positive to 12
U > 1,4 V

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Negative lead at 3,

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
positive to 13
0,2 ... 0,4 V

If the voltmeter indicates a much lower value for any reading than that shown in the table, the SKiiP module
to third parties.

is faulty.

Modification:
Date:
 INVENTIO AG
CH–6052 Hergiswil VARIODYN 35/45/70 K 603106 E Page 31

DR COMMISSIONING Sx / Cx 1–11.1/1

SKiiP power module

1 W - 17

+ 16

2 V - 15
Inverter
+ 14

3 U - 13

+ 12

4 - 11
Braking
Chopper + 10

5 9
- +
GR
X X X
6 7 8

Fig. 19: Layout and position of the inverter IGBTs

12.4 Changing the Inverter

Since the inverter is not a separate spare part, the SKiiP module has to be replaced.
For replacement, see TK Maintenance (brown); K 603 070 E.
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

to third parties.

Modification:
Date:
 INVENTIO AG
CH–6052 Hergiswil VARIODYN 35/45/70 K 603106 E Page 32

DR COMMISSIONING Sx / Cx 1–11.1/1

13 Checking the d.c. link and the DCLI pcb

Procedure:
D Remove the upper front cover as described in chapter 8.4,
D Switch multimeter to “Ohm” setting,
D Take a reading of the resistance between the points UKZM, UKZN and UKZP. Compare with the following
table:
Note: Since there are d.c. link capacitors connected, wait 30 ... 60s for the display to become stable.Z

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
DCLI terminal VARIODYN 35/45/70

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Positive lead at UKZM, R > 7 k

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
negative lead to UKZN

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Negative lead at UKZM, R > 7 k

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
positive lead to UKZP

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Negative lead at UKZM, R > 7 k

positive lead to UKZN

DCLI

UKZM

UKZP

UKZN

PE UKZM
X1

Fig. 20: Layout of the DCLI pcb

If the reading shows a much lower value than in the table, the capacitors are faulty.
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

13.1 Changing the Capacitors

For replacement, see TK Maintenance (brown); K 603 070 E.
to third parties.

Modification:
Date:
 INVENTIO AG
CH–6052 Hergiswil VARIODYN 35/45/70 K 603106 E Page 33

DR COMMISSIONING Sx / Cx 1–11.1/1

14 Checking for Earth Leakage

X1 FEN SGR GR power SH X2 Motor

SI module
SKiip

Fig. 21: Block diagram of the power circuit

Procedure:
D Remove the lower front cover as described in chapter 8.3,
D Switch multimeter to ‘Ohm’ setting,
D Measure > 1MW between X2.1, .2, .3 and ground X2.4 on both polarities,
D If the measurement is lower than 1MW, disconnect the hoisting motor wiring on X2.1, .2, .3 and take
another reading on the same terminals,
D If the measured values are now above 1MW, the fault must be on the motor. If not, proceed.
D To make sure, take a reading of the insulation value directly on the hoisting motor wires,
D Remove the upper front cover as described in chapter 8.4, in order to access further measuring points,

Note: Since there are d.c. link capacitors still connected, wait 30 ... 60s for the display to become
stable.Z

D On the DCLI pcb measure > 1MW from ground to UKZP and ground to UKZN. Disconnect the three pole
connector on the DCLI pcb. The resistance must be higher than 1MW on both polarities,
D If any of the measurements show less than 1MW, disconnect the d.c. link from the rectifier (GRKZ 5 and
9) and do the measurements again,
D If the resistance is still too low, the SKiiP power module, the capacitor bank or the DCLI pcb is faulty. If
not, the rectifier is faulty,
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

D If there are no faults detected, replace all removed connections.

to third parties.

Modification:
Date:
 INVENTIO AG
CH–6052 Hergiswil VARIODYN 35/45/70 K 603106 E Page 34

DR COMMISSIONING Sx / Cx 1–11.1/1

15 Diagnostics Checktree for VARIODYN 35/45/70 Drive Units

Observe the state of all LED

on pcbs PGO1683.Q, PVF,
IVXVF, UKE, SKD,(NSG)

LED
match the yes
normal state?
PWOK mis- other mis-
mismatch mismatch mismatch mismatch match on matches on
on PGO on PVF on SKD on NSG UKE UKE

G Check G Check G Check TS G Check G Check TUV G Remove

supply UKE G Check 400 V supply supply lower cover
G Errorhand- G Errorhand- ac on RKPH, G Check G Check G Remove up-
ling on ling on JHS fuses on internal per cover if
PGO PVF G Check safety NSG supply on necessary
circuit UKE

DRV error SYM error ES error SK error

G Check G Check G Check G Check

SKiiP DCLI earth safety
supply G Check current circuit
G Check CKZ G Check
short short
circuit on circuit to
inverter ground
or braking
chopper

Carry out above steps until the error is located.

Fix the device if possible.
any way nor used for manufacturing nor communicated
This design and information is our intellectual property.
It must without our written consent neither be copied in

Commission the drive.

another
yes error
occurred
?
no
to third parties.

END

Fig. 22: Procedure with Diagnostics

Modification:
Date: