Solar Pump Inverter Content

Content

Safety precautions……………………………………………………………………1

Chapter 1 System Introduction ……………………………………………………6

Chapter 2 Solar Pump Inverter ……………………………………………………7

Chapter 3 System Collection Diagram …………………………………………15

Chapter 4 Function Parameters …………………………………………………27

Chapter 5 Troubles Shooting ……………………………………………………39

Chapter 6 Warranty …………………………………………………………………43

Chapter 7 Communication protocol ……………………………………………45

User’s Information …………………………………………………………………53

Solar Pump Inverter Content
Solar Pump Inverter Safety precautions

Thank you for your using our solar pump inverter.

 Please read this manual thoroughly to ensure proper usage, keep this manual at an
easily accessible place so that you can refer anytime as necessary.

Safety Precautions
Please read this operation manual carefully before installation, operation, maintenance or
inspection.

In this manual, the safety precautions were sorted to “WARNING” or “CAUTION”.

Indicates a potentially hazardous situation which, if not

avoided, will result in death or serious injury.

Indicates a potentially hazardous situation which, if not

avoided, will result in minor or moderate injury and physical
damage. This sign is also used for alert of any un-safety
operation.

In some cases, the contents of “CAUTION” could cause serious accident. Please follow
these important precautions in any situation.

★NOTE is the necessary step to ensure the proper operation.

Warning Marks were shown on the front keypad of inverters.

Please follow these indications when using the inverter.

1. WARNING

 May cause injury or electric shock.

 Please follow the instructions in the manual before installation or operation.
 Disconnect all power line before opening front cover of unit. Wait at least 5
minute until DC Bus capacitors discharge.
 Use proper grounding techniques.
 Never connect AC power to output UVW terminals

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Solar Pump Inverter Safety precautions

Before installation

 Do not operate the inverter if there are any signs of water in the inverter when
unpacking.

 Do not operate the inverter if there is any damage or components loss to the inverter
when unpacking. Otherwise, physical injury or damage to the devices may occur.

 Do not touch the control terminals, PCB board or components inside the inverter
with hands or body.

 Do not operate the inverter if the packing list is not consistent with the devices.

 Do not operate the inverter if the information on the name plate is not consistent with
your order.

2. Installation

 Only qualified electricians are allowed to perform the installation, otherwise electric
shock may occur.

 Please install the inverter on fire-retardant materials and keep the inverter away
from combustible materials, otherwise a fire may occur.
 Please assemble and tighten the mounting screws of the inverter according to the
regulations, otherwise the inverter may fall off.

 Do not install the inverter in explosive atmospheres, otherwise an explosion may

occur.

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Solar Pump Inverter Safety precautions

 Handle the inverter with care to prevent it falling off and thus leading to injury to your
feet or the device.

 Keep the inverter away from the places with large vibrations, water drops and direct
sunlight.

 When installing the inverter in the cabinet, especially two or more inverters are
installed in a cabinet, please pay attention to the installation space and ventilation.

 Avoid screws, cables and other conductive matters falling into the inverter during
installation.

3. Wiring

 Only qualified electricians are allowed to perform the wiring, otherwise electric shock
or device damage may occur.

 Carry out wiring strictly in accordance with this manual, otherwise there is a risk of
electric shock or device damage.

 Ensure any input power supply is disconnected before wiring, otherwise electric
shock may occur.

 Please select all cables, circuit breakers and contactors meeting the national
standards as required by the manual.

 The inverter must be grounded reliably, otherwise electric shock may occur.

 Carry out wiring strictly in accordance with the silk printing instructions and avoid
connecting the input and output wires reversely, otherwise the damage to the
devices may occur.

 Keep the terminal signal cables of the inverter away from the power cables as far as
possible, or distribute the two categories of cables vertically-crossed if the distance
is not far enough, otherwise it may cause signal interference.

 Ensure that all the screws are tightened when wiring, otherwise damage to the
inverter may occur.

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Solar Pump Inverter Safety precautions

» The encoders and sensors should be applied with the shielded cables and the shielded
layer should be grounded reliably.

4. Operation

 Confirm that the wiring is completed and correct and then cover the plate before
power on.

 Do not open the plate after power on, otherwise electric shock may occur.

 Operate the inverter appropriately, otherwise damage to the inverter may occur.

 Non-professionals are not allowed to test the signals when the inverter is running.
Otherwise, physical injury or damage to the devices may occur.

 Any arbitrary change in parameters of the inverter is prohibited, otherwise damage

to the inverter may occur.

 Do not touch the fans and brake resistors, otherwise it may cause mechanical injury
or burn.

 Do not start up or stop the inverter by power on or off, otherwise damage to the
inverter may occur.

 Ensure that the circuit breakers or contactors at the output sides of the inverter are
not in output state before switching, otherwise damage to the inverter may occur.

5. Others

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Solar Pump Inverter Safety precautions

 This inverter is not suitable for the occasions when the specifications exceed those
specified in this manual. If you have special requirements, please contact our
technical department.

 The inverter is equipped with surge suppressors inside, which can protect it from the
lightning. It is necessary to mount external surge suppressors at the power input
side of the inverter in high lightning incidence areas.

 When the conductors between the inverter and the motor exceed 100m, it is
recommended to mount the output reactors to avoid overcurrent caused by
excessive distributed capacitance.

 Do not mount the compensation capacitors and the surge absorbers at the output
sides of the inverter. Otherwise, it may cause damage to the inverter due to
overheating.

 Mounting the input or output reactors, special filters and magnetic rings at the input
or output sides of the inverter can effectively reduce the noise and thus avoid
interference to other devices.

 Non-professionals are not allowed to perform withstand voltage tests on the

inverter, , otherwise damage to the inverter may occur.

 Deal with the devices as industrial effluent after scrapping. Burning is strictly
prohibited, otherwise an explosion may occur.

 The cooling effect of the inverter is reduced and the electrolytic capacitor electrolyte
is also volatile in high altitude areas, which will shorten the life of the inverter. Check
the altitude of the actual usage site is below 1000m. If exceeds, reduce rated output
current by 1% for every additional 100m.

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Solar Pump Inverter Chapter 1 System Introduction

Chapter 1 System Introduction

1.1 Brief Introduction

A complete solar Pump system consist of solar array, pump and solar Pump inverter. The
inverter can convert DC power from solar PV array to AC power to run pump motors.

Solar array, an aggregation of many solar modules connected in series and parallel,
absorbs sunlight radiation and converts it into electrical energy, providing dynamical water
for the whole system.

Inverter controls the system operation and adjust the output frequency in real-time
according to the variation of sunlight intensity to realize the maximum power point tracking
(MPPT).

Pump, drive by 3-phase or single phase AC motor, can draw water from the deep wells or
rivers and lakes to pour into the storage tank or reservoir, or directly connect to the
irrigation system, fountain system, etc.

Figure 1 Structure of solar Pump system

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Solar Pump Inverter Chapter 2 Solar Pump Inverter

Chapter 2 Solar Pump Inverter

2.1 Model Description
Model numbers on name plate consist of numbers, symbols, and letters, to express its
respective series, suitable power type, power level and other information.

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Solar Pump Inverter Chapter 2 Solar Pump Inverter

2.2 Name plate

2.3 Parameters
2.3.1 CT112 series parameters
CT112 Solar Pump Inverter
Rated DC Input Recommend Recommend Max. DC Rated Rated Output
Model Power VOC VOC Voltage MPPT Input Output output Frequency
(KW) Voltage(V) (V) Voltage (V) Current (A) Current(A) Voltage(V) (Hz)
CT112-2S-0.7G 0.75 300~450 388~450 320~370 8.5 5.5 1PH 220 0-50/60
CT112-2S-1.5G 1.5 300~450 388~450 320~370 14 10 1PH 220 0-50/60
CT112-2S-2.2G 2.2 300~450 388~450 320~370 23 13.8 1PH 220 0-50/60
CT112-2S-4.0G 4 300~450 388~450 320~370 35 20 1 PH 220 0-50/60
CT112-2T-0.7G 0.75 200~450 388~450 320~370 8.5 4.5 3PH220 0-50/60
CT112-2T-1.5G 1.5 200~450 388~450 320~370 14 7.0 3PH220 0-50/60
CT112-2T-2.2G 2.2 200~450 388~450 320~370 23 10 3PH220 0-50/60
CT112-2T-4.0G 4 200~450 388~450 320~370 35 16 3PH220 0-50/60
CT112-2T-5.5G 5.5 200~450 388~450 320~370 50 20 3PH220 0-50/60

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Solar Pump Inverter Chapter 2 Solar Pump Inverter

CT112-4T-0.7G 0.75 300~780 670~780 540~ 630 8.5 2.5 3PH380 0-50/60
CT112-4T-1.5G 1.5 300~780 670~780 540~630 8.5 3.7 3PH380 0-50/60
CT112-4T-2.2G 2.2 300~780 670~780 540~630 14 5.3 3PH380 0-50/60
CT112-4T-4.0G 4.0 300~780 670~780 540~630 23 9.5 3PH380 0-50/60
CT112-4T-5.5G 5.5 300~780 670~780 540~ 630 23 14.0 3PH380 0-50/60
CT112-4T-7.5G 7.5 300~780 670~780 540~630 35 18.5 3PH380 0-50/60
CT112-4T-11G 11 300~780 670~780 540~630 35 25.0 3PH380 0-50/60
CT112-4T-15G 15 300~780 670~780 540~630 50 32.0 3PH380 0-50/60
CT112-4T-18.5G 18.5 300~780 670~780 540~ 630 50 38.0 3PH380 0-50/60
CT112-4T-22G 22 300~780 670~780 540~630 75 45.0 3PH380 0-50/60
CT112-4T-30G 30 300~780 670~780 540~630 75 60.0 3PH380 0-50/60
CT112-4T-37G 37 300~780 670~780 540~630 100 75.0 3PH380 0-50/60
CT112-4T-45G 45 300~780 670~780 540~ 630 100 92.0 3PH380 0-50/60
CT112-4T-55G 55 300~780 670~780 540~630 150 115.0 3PH380 0-50/60
CT112-4T-75G 75 300~780 670~780 540~630 225 150.0 3PH380 0-50/60
CT112-4T-90G 90 300~780 670~780 540~630 300 180.0 3PH380 0-50/60
CT112-4T-110G 110 300~780 670~780 540~ 630 375 215.0 3PH380 0-50/60
CT112-4T-132G 132 300~780 670~780 540~630 450 260.0 3PH380 0-50/60

Maximum Input PV Voltage

450VDC
(PV Open-Circuit Voltage)
Recommended MPPT
Input specification 320~370VDC(Vmp)
Voltage Range
Recommended Input
388~450VDC (VOC)
Operation Voltage
Input specification
(Grid or backup Input voltage 1PH 220V(-15%～30%)
CT112-2S-0.4G generator input)
~4.0G Rated output voltage 1PH 220V
Output
0 ～ 600.00Hz （ default: 0 ～
specification Output frequency
60.00Hz）
Protection of light load,
over-current, over-voltage,
output phase-lose, under-load,
Fault protection Built-in Protection
under-voltage, short circuit,
overheating, water pump run
dry etc.
Maximum Input PV Voltage
450VDC
(PV Open-circuit Voltage)
Input specification
Recommended MPPT
CT112-2T-0.7G (PV Input) 320~370VDC(Vmp)
Voltage Range
~5.5G
Recommended Input
388~450VDC (VOC)
Operation Voltage
Input specification
(Grid or backup Input voltage 1PH 220V(-15%～30%)
generator input)
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Solar Pump Inverter Chapter 2 Solar Pump Inverter
Rated output voltage 3PH 220V
Output
0 ～ 600.00Hz （ default: 0 ～
specification Output frequency
60.00Hz）
Protection of light load,
over-current, over-voltage,
output phase-lose, under-load,
Fault protection Built-in Protection
under-voltage, short circuit,
overheating, water pump run
dry etc.
Maximum Input DC
Voltage 780VDC
Input (PV Open-circuit Voltage)
specification(PV Recommended MPPT
540~630VDC(Vmp)
Input) Voltage Range
Recommended Input
670~780VDC (VOC)
Operation Voltage
Input
specification(Grid Three phase 380VAC(-15% ～
Input Voltage Range
CT112-4T-0.7G or backup 30%)
~132G generator input)
Rated output voltage 3PH 380VAC
Output
0 ～ 600.00Hz （ Default 0 ～
specification Output frequency
60.00Hz）
Protection of light load,
over-current, over-voltage,
output phase-lose, under-load,
Fault protection Built-in Protection
under-voltage, short circuit,
overheating, water pump run
dry etc.
LED display Highlight LED digital tube displays the inverter information
Keypad display
LCD display LCD displays inverter information
No direct sunshine, no dust, corrosive gas, combustible gas,
Application Site
oil mist, steam, dripping or salinity etc.
0～2000m, Derated use above 1000m,per100m, the rated
Altitude
output current decrease 1%.
Environment -10℃ ～50℃ (Environment Temperature be 40℃ ～50℃,
Temperature please keep derated use.)
Others Humidity 5～95%,non-condensation
Vibration less than 5.9 m/s 2（0.6g）
Storage
-20℃～+70℃
Temperature
Efficiency Rated Power Run≥93%
Installation Wall or rail mounting
Cooling Forced Air Cooling

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Solar Pump Inverter Chapter 2 Solar Pump Inverter

2.3.2 CT112A series parameters

CT112A Solar Pump Inverter
CT112A-2S/2T-XXX 0.7 1.5 2.2
Rated output power(kW） 0.7 1.5 2.2
Max. DC input current（A） 9 12 12

Rated AC input current—AC type（A） 9.3 15.7 24

Rated output current（A） 4.5 10 14
Note: Output current is defined as rated value at single 220V output voltage, and output
current at three phase output is counted additionally according to the power.

CT112A-2S-0.7 CT112A-2S-1.5 CT112A-2S-2.2

Mode
CT112A-2T-0.7 CT112A-2T-1.5 CT112A-2T-2.2
DC INPUT
Max. DC voltage(V) 450
Starting voltage(V) 80 100
Min. Operation voltage(V) 60 80
Recommended MPPT
80~400 100~400
voltage(V)
Input channel One channel:MC4
Max. DC input current(A) 9 12
Bypass AC input (model supports mains input)
Input voltage(Vac) 220/230/240(1PH)（-15%~+10%）
Input frequency（Hz） 47~63
AC input terminal 1P2L
AC output
Rated（W） 750 1500 2200
5.1（1PH） 10.2（1PH） 14（1PH）
Rated current（A） 4.2（3PH） 7.5（3PH） 10（3PH）
Output voltage(Vac) 0~input voltage
Output wiring mode 1P2L/2P3L/3P3L
Output frequency（Hz） 1~400
Control performance
Control mode MPPT
Motor type Asynchronous motor
Other parameters
Dimension（L*W*H）（mm） 314*280*128
Protection level IP54
Cooling mode Natural cooling
HMI External LED keypad
Communication terminal
External communication RS485/3 digital inputs
Operation environment
Ambient temperature -25℃~60℃（derate when the temperature is above 45℃）
Operation altitude 3000 m（derate when the altitude is above 2000m）
Warranty 18 months
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Solar Pump Inverter Chapter 2 Solar Pump Inverter

2.4 External Dimensions

2.4.1 CT112 series solar pump inverter

Figure 2 Dimensions (CT112:11KW and below)

Figure 3 Dimensions(CT112:15KW~132KW)

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Solar Pump Inverter Chapter 2 Solar Pump Inverter

Table 1 Dimensions of CT112 series inverter

Size（mm） Installation Weight Shape of
Power(kw）
W H D W1 H1 H2 Hole(mm) (kg) Inverter
CT112-2S-0.4G
CT112-2S-0.7G 126 186 155 115 175 --- 5 1.6 C0
CT112-2S-1.5G
CT112-2S-2.2G
CT112-2S-4.0G 140 230 172 128 218 --- 5.5 3.5 C1
CT112-2T-0.7G
CT112-2T-1.5G 126 186 155 115 175 --- 5 1.6 C0
CT112-2T-2.2G
CT112-2T-4.0G 140 230 172 128 218 --- 5.5 3.5 C1
CT112-2T-5.5G 165 285 200 153 273 --- 5.5 5.5 C2
CT112-4T-0.7G

CT112-4T-1.5G 126 186 155 115 175 --- 5 1.6 C0

CT112-4T-2.2G

CT112-4T-4.0G
140 230 172 128 218 --- 5.5 3.5 C1
CT112-4T-5.5G

CT112-4T-7.5G
165 285 200 153 273 --- 5.5 5.2 C2
CT112-4T-11G

CT112-4T-15G

CT112-4T-18.5G 214 402 205 184 360 385 7 11.5 C3

CT112-4T-22G

CT112-4T-30G
250 442 230 220 405 425 7 19 C4
CT112-4T-37G

CT112-4T-45G
299 602 276 240 540 580 9 30 C5
CT112-4T-55G

CT112-4T-75G

CT112-4T-90G
329 660 332 250 601 640 9 56 C6
CT112-4T-110G

CT112-4T-132G

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Solar Pump Inverter Chapter 2 Solar Pump Inverter

2.4.2 CT112A solar pump inverter

Figure 4 CT112A series dimension diagram

Table 2 Dimensions of CT112A series inverter

Height H1 Width W1 Depth D Height H2 Width W2 Installation
Mode
(mm) (mm) (mm) (mm) (mm) hole
CT112A-2S/2T-0.7

CT112A-2S/2T-1.5 280 314 128.2 264 256 M6

CT112A-2S/2T-2.2

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Solar Pump Inverter Chapter 3 System Collection Diagram

Chapter 3 System Collection Diagram

3.1 CT112 Series Main Circuit Terminals

3.1.1 Schematic Diagram for Connection of Main Circuit Terminals

①Connection diagram of main circuit for the inverter of 220v

②Connection diagram of main circuit for the inverter of 380v 0.7~22KW

③Connection diagram of main circuit for the inverter of 380v 30~37KW

④Connection diagram of main circuit for the inverter of 380v 45~55kw

⑤Connection diagram of main circuit for the inverter of 380v 75~132kw

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Solar Pump Inverter Chapter 3 System Collection Diagram

3.1.2 Instructions of Main Circuit Terminals of Inverter:

Terminal Description

R、S、T Terminals of 3 phase AC input

(+)、(-) Terminals of 2 phase DC input

(+)、PB Spare terminals of external braking resistor

P1、(+) Spare terminals of external DC reactor

(-) Terminal of negative DC bus

U、V、W Terminals of 3 phase AC output

Terminal of ground

● the voltage class of CT112 series inverter 3phase power has 2 class: 220V, 380V,
before connecting power, please make sure the power class on inverter nameplate is
the same with the accessing power. Otherwise do not connect.
● DC bus (+) (-)terminal: take note that when power outrage there is residual voltage on
DC bus P+ P- terminal, need to wait for a while until CHARGE LED off. Otherwise it is
danger of electric shock.
●When selecting external brake unit, note the polarity of P= (+) and (-) cannot be
reversely connected, otherwise it can result in damage or even fire.
Do not directly connect brake resistor to DC bus, it may result damage or fire.

1)Input power L,N or R, S T: the cable connection at input side of the inverter has no
phase sequence requirement.
2)Brake unit cable length should not exceed 10m, twisted pair or double cable parallel
wiring should be used.
3)Brake resistor connecting terminal (+) (-): confirm whether the device has built-in
brake unit, its brake resistor connecting terminal is effect. The brake resistor selection
table 2-4 recommending value and the wiring distance should less than 5M.
Other it can damage inverter.

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Solar Pump Inverter Chapter 3 System Collection Diagram

4)External DC electric reactor connecting terminal P1 (+): for external DC reactor to

45Kw and above power inverter, get rid off the connector between P1 (+) terminal
during installation, reactor is installed between the 2 terminal.
5)Inverter output side U V W: the output side cannot connect capacitor or surge
absorber, otherwise it will affect inverter in self-protection frequently or damage.
6)In case the motor cable is too long, it may generate electrical resonance easily due to
the impact of distributed capacitance, thus damaging the motor insulation or generating
higher leakage current to invoke over current protection of the inverter. When the length
of motor cables longer than 100 meters, it needs to install a AC output reactor.
7)Earth terminal PE:
This terminal shall be earthed reliably, with resistance of earth cable of less than
10Ω.Otherwise, it may cause fault or damage the inverter.
Do not share the earth terminal with zero line R,S,T terminal, otherwise it will result
equipment abnormal running or damage.

3.1.3 Control Circuit Terminal

Terminal Description
ON-OFF signal input, optical coupling with PW and COM.
DI1～DI5 Input voltage range: 9~30V
Input impedance: 3.3kΩ
External power supply. +24V terminal is connected to PW terminal as
default setting. If user need external power supply, disconnect +24V
PW
terminal with PW terminal and connect PW terminal with external power
supply.
Provide output power supply of +24V.
+24V
Maximum output current: 150mA
Analog input, 0~10V/ 0~20mA
AIN
Input impedance: 10kΩ
Common ground terminal of analog signal and +10V.
GND
GND must isolated from COM.
Common ground terminal for digital signal and +24V (or external power
COM
supply).
+10V Supply +10V for inverter.
PE Ground Terminal.
RO1 relay output: RO1A—common; RO1B—NC; RO1C—NO.
T1A、T1B、T1C
Contact capacity: AC 250V/3A, DC 30V/1A.
RO2 relay output: RO2A—common; RO2C—NO.
T2A、T2C
Contact capacity: AC 250V/3A, DC 30V/1A.

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Solar Pump Inverter Chapter 3 System Collection Diagram

3.2 CT112A Main Circuit Terminals

3.2.1 Terminals description of CT112A

No Terminal name Pin definition

1．L
2．N
1 AC input terminal
3．PE
2 PV input terminal: negative -DC INPUT
3 PV input terminal: positive +DC INPUT
4 External keypad terminal RJ45
Short circuit: water shortage. Direct
1. DI3 short-circuit running without water
5 Water level indication switch
level sensor
2.COM
1．485+
2．485-
3．DI2 Short circuit: full water
4．DI3 Short circuit: water shortage
5．COM
6．AIN Pressure sensor
6 Functional terminal
7．+24V
8．PE
1．U
2．V
3．W
7 AC output terminal
4．PE
Solar restrict switch,F05.05=42,DI5
1. DI4
8 Solar/mains switch setting
2. COM

3.2.2 Power terminal description

3.2.2.1 Terminal 1 is AC input terminal, which is involved in the model supports mains input.
Live wire of the grid links with L, neutral wire links with N, earth wire links with PE.
(Attention: make sure PE is connected reliably for safety)

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Solar Pump Inverter Chapter 3 System Collection Diagram

3.2.2.2 Terminal 7 is AC output terminal to connect water pump motor. When three phase
motor is used, please connect the U, V, W three phase of the motor to U, V, W of solar
Pump inverter, motor frame connects PE pin of terminal 7.
3.2.2.3 If single phase motor is used, there are two wiring methods according to different
control modes.
(1) Single phase control method: connect the phase wire of single phase motor to U, W of
the inverter terminal 7, motor frame connects PE pin of terminal 7. This method doesn’t
need to disassemble the motor starting capacitor, convenient wiring but bad starting
performance makes that it’s only applicable for some single-phase motors.
(2) Two phase control method: this method needs to disassemble starting capacitor and
running capacitor (if existed) of the motor. Internal wiring of normal single-phase motor is
as below, L1 is running winding, L2 is starting winding, C1 is running capacitor, C2 is
starting capacitor. When the speed of motor is beyond 75% of rated speed, starting
capacitor breaks off through centrifugal switch.

Disassemble the starting capacitor and running capacitor, internal wiring of single phase
motor winding is as below:

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Solar Pump Inverter Chapter 3 System Collection Diagram

U1 and V1 are common ends of winding to connect with W phase output of solar Pump
inverter, connect U2 end of running winding to U phase output and connect V2 of starting
winding to V phase output.
After adjustment of positive way, change the running direction by F00.13 as same with
positive/negative way control of three phase motor.

3.2.3 Communication terminal description

Terminal name Description

PE Grounding terminal

COM +24V common terminal

DI2 Switch input2 1．Internal impedance:3.3kΩ

2．Acceptable 12~30V voltage input
DI3 Switch input 3 3．Single-way input terminal, only supports NPN wiring.
4．Maximum input frequency:1kHz
5.Programmable digital input terminal, user can set
DI4 Switch input 4 terminal functions by function codes.
6．DI1 short circuit with COM by default internally, no
leading outwards.
485+ 485 communication interface,485 differential signal interface, standard
485 communication port connects in twisted pair cable or shielded
485-
cable.

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Solar Pump Inverter Chapter 3 System Collection Diagram

3.3 Collection Diagram for Different Motor

Figure 4 Diagram of single phase inverter connection method (PV Input)

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Solar Pump Inverter Chapter 3 System Collection Diagram

Figure 5 Diagram of single phase inverter connection method (AC Input)

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Solar Pump Inverter Chapter 3 System Collection Diagram

Figure 6 Diagram of 3phsae inverter connection method (PV Input)

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Solar Pump Inverter Chapter 3 System Collection Diagram

Figure 7 Diagram of 3phase inverter connection method (AC Input)

Note : If no need water level sensor of tank , please don’t connect ‘DI2’ , ‘COM’ .
If you want to operate inverter by hand , no run/stop automatically , please don’t
connect ‘DI1’ , ‘COM’.

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Solar Pump Inverter Chapter 3 System Collection Diagram

3.4 Keypad operation procedure

3.4.1 Keypad induction
The keypad consists of three parts for unit/status LEDs display, parameters display and
key operation as shown below.
3.4.2 Operation panel button and potentiometer function

Button Name Description

Programming
Entry or escape of first-level menu.
Key

Enter Key Progressively enter menu and confirm parameters.

UP Increment
Progressively increase data or function codes.
Key

DOWN
Progressive decrease data or function codes.
Decrement Key

In parameter setting mode, press this button to select

Shift Key the bit to be modified. In other modes, cyclically
displays parameters by right shift

Run Key Start to run the inverter in keypad control mode.

In running status, restricted by F05.05, can be used to

STOP/RESET stop the inverter.
Key When fault alarm, can be used to reset the inverter
without any restriction.
Determined by Function Code F05.04
0: Jog operation
1: Switch between forward and reverse
2: Clear the UP/DOWN settings.
Shortcut Key
3: Quick debugging mode1 (by menu)
4: Quick debugging mode2 (bylatest order)
5: Quick debugging mode3 (by non-factory setting
parameters)

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Solar Pump Inverter Chapter 3 System Collection Diagram

3.4.3 Indicator of Light Description

3.4.3.1 Unit Indicator Light Description
Light Unit indicator Description
Light on ：Run
RUN Light off：Stop
Flash：Sleeping mode
Light on：Reverse
F/R
Light off：Forward
Status Light Light on：Communication control;
LO/RE Light off：Keypad control
Flash：Terminal control
Light on ：Fault alarm;
ALM Light off：No fault alarm
Flash：Overload warning
Hz Frequency unit
A Current unit
Units Light V Voltage unit
RPM Rotating speed unit
% Percentage
3.4.3.2 Keypad Display Description

26
Solar Pump Inverter Chapter 4 Function Parameters

Chapter 4 Function Parameters

4.1 The Basic Function Parameters
The symbols in the function code table are described as follows:

"○" means the value of this parameter can be modified in stop and running status of drive;
"☆" means the value of this parameter cannot be modified when drive is running;

"●" means this parameter is a measured value that cannot be modified;

Default: The value when restored to factory default. Neither measured parameter value nor
recorded value will be restored.
Setting Range: the scope of setting and display of parameters.

Factory Attri
Code Name Description
Default bute
F00 Group: Basic function
0：Operation Panel（LED off）
Command Source 1：Terminal Panel（L/R on）
F00.01 1 ○
Selection of Run/Start 2：Computer Communications（L/R
flash）
F00.03 Maximum frequency F00.04～600.00Hz 50.00Hz ☆
F00.04 Upper frequency limit F00.05～F00.03 50.00Hz ☆
F00.05 Lower frequency limit 0.00 Hz～F00.04 0.00Hz ☆
0: keypad digital setting
F00.06 Frequency setting 0 ○
1: analog AI1 setting
Model
F00.11 Acceleration Time 0 0.0s~3600.0s ○
Set
Model
F00.12 Deceleration Time 0 0.0s~3600.0s ○
Set
0: positive
F00.13 Run direction 1: reverse 0 ☆
2: prohibit reverse
Model
F00.14 Carrier frequency set 1.0~15.0kHz ○
Set
0：G type
F00.17 Inverter type 0 ☆
1：P type
0：No action
F00.18 Restore parameters 1：Restore factory setting 0 ☆
2：Clear fault records
F01 Group: Start and stop control
F01.01 Starting frequency 0.00~50.00Hz 10.00Hz ☆
Hold time of starting
F01.02 0.0~50.0s 0.0s ☆
frequency
0：Deceleration stop
F01.08 Stop mode selection 1 ○
1：Freewheel stop
F01.13 Dead time of 0.0~3600.0s 0.0s ○

27
Solar Pump Inverter Chapter 4 Function Parameters
Factory Attri
Code Name Description
Default bute
FWD/REV
0：switch after zero frequency
Switch mode of
F01.14 1：switch after starting frequency 0 ○
FWD/REV
2：delay and switch after stop speed
F01.15 Stop speed 0.00~100.00Hz 0.50 Hz ○
Terminal Control 0：Terminal Command Enabled
F01.18 1 ○
When Power-On 1：Terminal Command Disabled
Actuation when
0: run at lower limit frequency
running frequency is
F01.19 1: stop 0 ☆
less than lower limit
2: stand-by
frequency
Delay time of 0.0~3600.0s
F01.20 0.0s ☆
dormancy wake up
Restart when 0：Forbid to Restart
F01.21 1 ○
Power-off 1：Allow to restart
F01.22 Waiting time for 0.0~3600.0s
60.0s ○
restart after power-off
F01.23 Delay time of start 0.0~60.0s 60.0s ○
Wait Time of Restart
F01.24 0.0~100.0s 0.0s ○
When Power-off
F02 Group Motor parameter
F02.00 Motor1 type 0：Asynchronous motor 0 ●
Model
F02.01 Motor 1 Rated Power 0.1kW~3000.0kW ☆
Set
Motor 1 Rated
F02.02 0.00Hz~F00.03 50.00Hz ☆
Frequency
Motor 1 Rated Model
F02.03 1RPM~36000RPM ☆
Rotational Speed Set
Motor 1 Rated Model
F02.04 0V~1200V ☆
Voltage Set
Motor 1 Rated Model
F02.05 0.8A~6000.0A ☆
Current Set
Stator resistance of Model
F02.06 0.001~65.535Ω ○
asynchronous motor Set
Rotor resistance of Model
F02.07 0.001~65.535Ω ○
asynchronous motor Set
Inductance of Model
F02.08 0.1~6553.5mH ○
asynchronous motor Set
Mutual inductance of Model
F02.09 0.1~6553.5mH ○
asynchronous motor Set
Non-load current of Model
F02.10 0.1~6553.5A ○
asynchronous motor Set
0: no protection
1: ordinary motor(with low speed
Motor overload
F02.26 compensation) 2 ☆
protection
2: variable frequency motor(without
low speed compensation)
F02.27 Motor overload 20.0~120.0% 100.0% ○
28
Solar Pump Inverter Chapter 4 Function Parameters
Factory Attri
Code Name Description
Default bute
protection factor
F03 Group: Reserved
F04 Group: V/F control
0: straight line V/F curve
1: multi-dots V/F curve
F04.00 V/F curve 2: 1.3th power low torque V/F curve 4 ☆
th
3: 1.7 power low torque V/F curve
4: 2.0nd power low torque V/F curve
5: V/F separated curve
F04.01 Motor 1 Torque Boost 0.0% (automatic)0.1%~10.0% 0.0% ○
Motor 1 Torque Boost
F04.02 0.0%~50.0% 20.0% ○
to Stop
F04.03 V/F frequency 1 0.00Hz～F04.05 0.00Hz ○
F04.04 V/F voltage 1 0.0%～110.0% (motor rated voltage) 00.0% ○
F04.05 V/F frequency 2 F04.03～F04.07 00.00Hz ○
F04.06 V/F voltage 2 0.0%～110.0% (motor rated voltage) 00.0% ○
F04.05～F02.02 (motor rated
F04.07 V/F frequency 3 00.00Hz ○
frequency)
F04.08 V/F voltage 3 0.0%～110.0% (motor rated voltage) 00.0% ○
Slip compensation
F04.09 0.0～200.0% 100.0% ○
gain
Low frequency surge
F04.10 00～100 10 ○
suppression factor
High frequency surge
F04.11 00～100 10 ○
suppression factor
Frequency threshold
F04.12 0.00Hz～F00.03 (Max. frequency) 30.00 Hz ○
of surge suppression
0: Keypad setting
F04.27 Voltage setting 1: AI1 voltage setting 0 ○
2~10:Reserved
Keypad setting
F04.28 0.0%～100.0% 100.0% ○
voltage
F04.29 Voltage ACC time 0.0s～3600.0s 5.0s ○
F04.30 Voltage DEC time 0.0s～3600.0s 5.0s ○
Max. V/F separated
F04.31 F04.32～100.0% 100.0% ☆
voltage
Min. V/F separated
F04.32 0.0%～F04.31 0.0% ☆
voltage
Weak magnetic
F04.33 coefficient of constant 1.00~1.30 1.00 ○
power zone
F05 Group: Input terminal
Terminal DI1 Function 0: disabled
F05.01 1 ☆
Selection 1: forward run
Terminal DI2 Function 2: reverse running
F05.02 43 ☆
Selection 3: three-wire running
F05.03 Terminal DI3 Function 4: forward jogging 44 ☆

29
Solar Pump Inverter Chapter 4 Function Parameters
Factory Attri
Code Name Description
Default bute
Selection 5: reverse jogging
Terminal DI4 Function 6: freewheel stop
F05.04 0 ☆
Selection 7: fault reset
8: emergency stop
9: external fault input
21: ACC/DEC time selection 1
22: ACC/DEC time selection 2
30: ACC/DEC disabled
36: switch command to keypad
Terminal DI5 Function
F05.05 36: switch command to terminal 0 ☆
Selection
36: switch command to
communication
40: power consumption clear
41: power consumption stay
42: PV Inverter Forbid
43: Full-Water
44: Dry -Water
Terminal DI1~DI5
F05.10 Positive/Negative 0x00~0x1F 0x004 ☆
Logic
DI Terminal Filtering
F05.11 0.000~1.000s 0.010s ○
Time
0:virtual terminal invalid
Virtual terminal
F05.12 1:MODBUS communication virtual 0 ☆
setting
terminal valid
0: two-wire control mode 1
Terminal control 1: two-wire control mode 2
F05.13 0 ☆
running mode 2: three-wire control mode 1
3: three-wire control mode 2
F05.14 Delay time of DI1 on 0.000~50.000s 0.000s ○
F05.15 Delay time of DI1 off 0.000~50.000s 0.000s ○
F05.16 Delay time of DI2 on 0.000~50.000s 0.000s ○
F05.17 Delay time of DI2 off 0.000~50.000s 0.000s ○
F05.18 Delay time of DI3 on 0.000~50.000s 0.000s ○
F05.19 Delay time of DI3 off 0.000~50.000s 0.000s ○
F05.20 Delay time of DI4 on 0.000~50.000s 0.000s ○
F05.21 Delay time of DI4 off 0.000~50.000s 0.000s ○
F05.22 Delay time of DI5 on 0.000~50.000s 0.000s ○
F05.23 Delay time of DI5 off 0.000~50.000s 0.000s ○
F05.32 AI1 lower limit 0.00V~F05.34 0.00V ○
Corresponding setting
F05.33 -100.0%~100.0% 0.0% ○
of AI1 lower limit
F05.34 AI1 upper limit F05.32~10.00V 10.00V ○
Corresponding setting
F05.35 -100.0%~100.0% 100.0% ○
of AI1 upper limit
F05.36 AI1 input filter time 0.000s~10.000s 0.100s ○
F05.37 AI0 lower limit 0.00V~F05.39 0.00V ○
F05.38 Corresponding setting -100.0%~100.0% 0.0% ○

30
Solar Pump Inverter Chapter 4 Function Parameters
Factory Attri
Code Name Description
Default bute
of AI0 lower limit
F05.39 AI0 upper limit F05.37~10.00V 10.00V ○
Corresponding setting
F05.40 -100.0%~100.0% 100.0% ○
of AI0 upper limit
F05.41 AI0 input filter time 0.000s~10.000s 0.100s ○
F06 Group: Output terminal
Relay T1 Output 0：Disabled
F06.03 1 ○
Function 1: running
2: forward running
3: reverse running
4: jogging
5: inverter fault
6: frequency level detection FDT1
7: frequency level detection FDT2
8: frequency arrival
9: zero speed running
RelayT2 Output
F06.04 10: upper limit frequency arrival 5 ○
Function
11: lower limit frequency arrival
12: running ready
14: overload early warning
15: under-load early warning
20:external fault valid
22: running time arrival
23: MODBUS communication virtual
terminal output
Output Terminal
F06.05 Positive/Negative 0x0~0x1F 0x0 ○
Logic
Relay T1 Output
F06.10 0.000~50.000 0.000s ○
delay time
Relay T1 Disconnect
F06.11 0.000~50.000 0.000s ○
delay time
Relay T2 Output
F06.12 0.000~50.000 0.000s ○
Delay Time
Relay T2 disconnect
F.6.13 0.000~50.000 0.000s ○
Delay Time
F07 Group: HMI interface
F07.00 User Password 0~65535 0 ○
0:invalid
1: jogging running
2:left-shift key to switch display state
MF key function 3: FWD/REV switch
F07.02 1 ☆
selection 4: clear UP/DOWN setting
5: freewheel stop
6: switch command methods in order
7: non-factory parameter debugging
F07.03 MF key switch 0: keypad 0 ○
command method →terminal→communication

31
Solar Pump Inverter Chapter 4 Function Parameters
Factory Attri
Code Name Description
Default bute
order 1: keypad←→terminal
2: keypad←→communication
3: terminal←→communication
0: only valid for keypad control
1: valid for keypad and terminal
control at the same time
STOP/RESET key
F07.04 2: valid for keypad and 0 ○
stop function
communication control at the same
time
3: valid for all control modes
0x0000~0xFFFF
BIT0：Output frequency
BIT1：Reference frequency
BIT2：DC bus voltage
Running Status BIT3：Output voltage
F07.05 0x05F ○
Display Selection BIT4：Output current
BIT5：Rotation speed
BIT6：Output power
BIT10: input terminal status
BIT11: output terminal status
0x0000~0xFFFF
BIT0: Analog AI1(V light on)
Running Status
F07.06 BIT1: Analog AI2(V light on) 0x0000 ○
Display Selection 2
BIT2: Analog AI3(V light on)
BIT3~BIT15: Reserved
0x0000~0xFFFF
BIT0：Reference frequency
BIT1：DC bus voltage
Stop Status Display BIT2：Input terminal status
F07.07 0x00FF ○
Selection BIT3：Output terminal status
BIT7: Analog AI1(V light on)
BIT8: Analog AI2(V light on)
BIT9: Analog AI3(V light on)
0.01~10.00
Frequency display
F07.08 Display frequency=running 1.00 ○
coefficient
frequency* F07.08
0.1~999.9%
Rotating speed Mechanical speed=120*display
F07.09 100.0% ○
display coefficient frequency×F07.09/Number of motor
pole pairs
0.1~999.9%
Linear speed display
F07.10 Linear speed=Mechanical 1.0% ○
coefficient
speed×F07.10
Rectification bridge
F07.11 0~100.0℃ ●
temperature
Converting module
F07.12 0~100.0℃ ●
temperature
F07.13 Software version 1.00~655.35 ●

32
Solar Pump Inverter Chapter 4 Function Parameters
Factory Attri
Code Name Description
Default bute
F07.14 Accumulative running 0~65535h ●
time
F07.18 Inverter Rate Power 0.4~3000.0kW ●
F07.19 Inverter Rate Voltage 50~1200V ●
F07.20 Inverter Rate Current 0.1~6000.0A ●
F07.27 Now Fault Type 0：Not fault ●
F07.28 Latest Fault Type 1：Over-current when acceleration ●
The Second Fault （OC1）
F07.29 ●
Type 2：Over-current when deceleration
F07.30 The Third Fault Type （OC2） ●
The Fourth Fault 3：Over-current when constant speed
F07.31 running（OC3） ●
Type
4：Over-voltage when acceleration
（OV1）
5：Over-voltage when deceleration
（OV2）
6：Over-voltage when constant speed
running（OV3）
7：DC bus Under-voltage（UV）
8：IGBT Ph-U fault（OUT1）
9：IGBT Ph-V fault（OUT2）
10：IGBT Ph-W fault（OUT3）
11：Motor overload（OL1）
12：Inverter overload（OL2）
13：overload alarm（OL3）
14：IGBT overheat（OH1）
15：Rectify overheat（OH2）
16：Input phase failure（SFI）
F07.32 The Fifth Fault Type 17: Output phase failure（SFO） ●
18：Brake unit fault（bCE）
19：Ground short-circuit fault (ETH)
20：Under load fault (LL)
21：Communication fault（E.485）
22：External fault（EF）
23：EEPROM fault（EEE）
24: Trial time reached（END）
25: Current detection fault (ItE)
32: Short to ground fault 1(ETH1)
33: Short to ground fault 2(ETH2)
36: Low-load fault(LL) Warning:
A-LS: Lack sunlight
A-tF : water full
A-LL :lack water source
A-LL1: water source drain
F08 Group: Auxiliary function
Depend
F08.00 ACC time 2 0.0～3600.0s ○
on mode
F08.01 DEC time 2 0.0～3600.0s Depend ○

33
Solar Pump Inverter Chapter 4 Function Parameters
Factory Attri
Code Name Description
Default bute
on mode
Depend
F08.02 ACC time 3 0.0～3600.0s ○
on mode
Depend
F08.03 DEC time 3 0.0～3600.0s ○
on mode
Depend
F08.04 ACC time 4 0.0～3600.0s ○
on mode
Depend
F08.05 DEC time 4 0.0～3600.0s ○
on mode
F08.06 Jogging frequency 0.00～F00.03 (Max. frequency) ○
Jogging running Depend
F08.07 0.0～3600.0s ○
ACC time on mode
Jogging running Depend
F08.08 0.0～3600.0s ○
DEC time on mode
Fault Auto Reset
F08.28 0~10 0 ○
Times
F08.29 Reset Interval 0.1~3600.0s 1.0s ○
FDT1 level detection
F08.32 0.00～F00.03 (Max. frequency) 50.00Hz ○
value
F08.33 FDT1 lag detection -100.0～100.0% (FDT1 level) 5.0% ○
FDT2 level detection
F08.34 0.00～F00.03 (Max. frequency) 50.00Hz ○
value
F08.35 FDT2 lag detection -100.0～100.0% (FDT2 level) 5.0% ○
Frequency arrival
F08.36 0.00～F00.03 (Max. frequency) 0.00Hz ○
detective value
Energy consumption 0: brake disable
F08.37 0 ○
brake enable 1: brake enable
200.0~2000.0V(220V
voltage:380.0V)
Depend
Braking threshold 200.0~2000.0V(380V
F08.38 on ○
voltage voltage:700.0V)
voltage
200.0~2000.0V(660V
voltage:1120.0V)
Running mode of 0: normal running mode
F08.39 0 ○
cooling fan 1: keep running after power on
F09 Group: Reserved
F10 Group: Reserved
F11 Group: Protective parameter
0x00~0x11
LED ones place:
0: input phase loss protection
disabled
1:input phase loss protection enabled
F11.00 Phase loss protection 11 ○
LED tens place:
0: output phase loss protection
disabled
1:output phase loss protection
enabled
34
Solar Pump Inverter Chapter 4 Function Parameters
Factory Attri
Code Name Description
Default bute
Frequency
F11.01 decreasing point at 00.0～100.0% (standard bus voltage) 80.0% ○
sudden power loss
Frequency
15.00Hz/
F11.02 decreasing ratio at 0.00Hz～F00.03 (Max. frequency) ○
s
sudden power loss
Overvoltage stall 0: disabled
F11.03 0 ○
selection 1: enabled
380V: 120～150%(standard bus
140%
Overvoltage stall voltage)
F11.04 ○
protection voltage 220V: 120～150%(standard bus
120%
voltage)
0x00~0x11
Ones place:actuation selection
0: Current limit actuation selection
1:actuation always valid
Overcurrent stall Tens place:hardware current limit
F11.05 01 ☆
actuation selection over-load alarm selection
0:hardware current limit over load
alarm valid
1:hardware current limit over load
alarm invalid
Overcurrent stall
F11.06 50.0%～200.0% 160.0% ☆
protection current
Overcurrent stall
10.00Hz/
F11.07 frequency decreasing 0.00～50.00Hz/s ☆
s
ratio
0x000~0x131
Ones place:
0: motor over(under)load early
alarm,relative to motor rated
current
1: inverter over/under load early
alarm,relative to inverter rated
current
Tens place:
Over(under)load 0: inverter keeps running after
F11.08 warning actuation over/under load alarm 0x000 ○
selection 1: inverter keeps running after
under-load alarm and stops after
over-load alarm
2: inverter keeps running after
over-load alarm and stops after
under-load alarm
3: inverter stops after over/under load
alarm
Hundreds place:
0: detecting all the way

35
Solar Pump Inverter Chapter 4 Function Parameters
Factory Attri
Code Name Description
Default bute
1:detecting during constant running
0x00~0x11
Ones place:
0: action when under-voltage fault
appears
Fault output terminal 1: no action when under-voltage fault
F11.13 0x00 ○
actuation selection appears
Tens place:
0:action during automatic resetting
1:no action during when automatic
resetting
Automatic frequency
0: invalid
F11.16 reduction selection of 1 ○
1:valid
Voltage fallen-down
F14 Group: Communication
0 is the broadcast address, 1～247
F14.00 Local address 1 ○
are slave addresses
0: 1200bps
1: 2400bps
2: 4800bps
F14.01 Baud rate 3: 9600bps 4 ○
4: 19200bps
5: 38400bps
6: 57600bps
0: no check (N, 8,1) for RTU
1: even check (E, 8,1) for RTU
2: odd check (O, 8,1) for RTU
F14.02 Data check 1 ○
3: no check (N, 8,2) for RTU
4: even check (E, 8,2) for RTU
5: odd check (O, 8,2) for RTU
F14.03 Response delay 0～200ms 5 ○
Communication
F14.04 timeout detection 0.0 (invalid), 0.1～100.0s 0.0S ○
time
0: alarm and coast to stop
1: no alarm and continue running
2: no alarm and stop according to
Communication
stop mode (communication mode
F14.05 timeout error 0 ○
is valid)
handling
3: no alarm and stop according to
stop mode (all control modes are
valid)
LED ones
0: write with response
Communication
1: write without response
F14.06 processing actuation 0x00 ○
LED tens
selection
0: set value unsaved after power off
1: set value saved after power off

36
Solar Pump Inverter Chapter 4 Function Parameters
Factory Attri
Code Name Description
Default bute
F15 Group Solar inverter special function
0：Disabled
F15.00 PV Inverter Selection 1：Enabled 1 ○
2：Boost enabled (CT112A special)
0：Constant Voltage
Vmpp Voltage
F15.01 1：Max. Power Point Tacking(MPPT) 1 ○
Selection
2： Bus voltage *0.8(CT112A special)
Vmpp Voltage
F15.02 0.0~6553.5Vdc 555.0V ○
Keypad Set
F15.03 PID Off Set Limits 0.0~100.0%(100.0% refer P11.18) 0.0% ☆
PID Max. Output
F15.04 0~100.0% 100.0% ○
Frequency
PID Min. Output
F15.05 0.0%~100.0% 0.0% ○
Frequency
F15.06 KP1 0.00~100.00 1.00 ○
F15.07 KI1 0.00~100.00 1.00 ○
F15.08 KP2 0.00~100.00 4.00 ○
F15.09 KI2 0.00~100.00 4.00 ○
F15.10 PI Amplitude 0.0~6553.5Vdc 50.0V ○
0: Disabled
F15.11 Dry Pump Function 0 ○
1: Enabled
F15.12 Dry-Water Threshold 0.0~100.0% 0.0% ○
Delay Time of
F15.13 0~3600.0s 60.0s ○
Dry-Water
Wake-up Delay Time
F15.14 0~3600.0s 600.0s ○
of Dry-Water
Reserve
F15.15 Reserved Reserved ○
d
Over-heat reduced 3.00Hz/
F15.16 0.00~10.00Hz/℃ ○
frequency ℃
Delay Time of
F15.17 0.0~3600.0s 60.0s ○
Full-Water
Reset Delay of
F15.18 0.0~3600.0s 120.0s ○
Full-Water
Frequency of Weak
F15.19 0~50.00Hz 5.00Hz ○
Light
Delay Time of Weak
F15.20 0.0~3600.0s 100.0s ○
Light
Reset Delay of Weak
F15.21 0.0~3600.0s 300.0s ○
Light
Reference Voltage of
F15.22 0.0~2000.0V 0V ●
Given Display
F15.23 Min. Voltage of MPPT 0.0~6553.5Vdc 100.0V ○
Max. Voltage of
F15.24 0.0~6553.5Vdc 780.0V ○
MPPT
F15.25 KP3 0.00~100.00 1.00 ○
F15.26 KI3 0.00~100.00 1.00 ○

37
Solar Pump Inverter Chapter 4 Function Parameters
Factory Attri
Code Name Description
Default bute
Water level control 0:invalid
F15.27 0 ○
selection 1:AI1
1.000Mp
F15.28 Pressure range 0.000~10.000MPa ○
a
0.500MP
F15.29 Stop pressure 0.000~10.000MPa ○
a
F17 Group: Status view function
F17.00 Set frequency 0.00Hz~F00.03 0.00Hz ●
F17.01 Output frequency 0.00Hz~F00.03 0.00Hz ●
Slope given
F17.02 0.00Hz~F00.03 0.00Hz ●
frequency
F17.03 Output voltage 0~1200V 0V ●
F17.04 Output current 0.0~5000.0A 0.0A ●
F17.05 Motor rotary speed 0~65535RFM 0 RFM ●
F17.08 Motor power -300.0~300.0% 0.0% ●
F17.10 Solar buttery voltage 0.0~2000.0V 0v ●
F17.11 DC bus voltage 0.0~2000.0V 0V ●
Digital input terminal
F17.12 0000~00FF 0 ●
status
Digital output terminal
F17.13 0000~000F 0 ●
status
F17.14 Digital adjustment 0.00Hz~F00.03 0.00V ●
F17.15 Given torque -300.0%~300.0% 0.0% ●
F17.16 Solar battery current 0.0~2000.0A 0A ●
F17.19 AI1 input voltage 0.00~10.00V 0.00V ●
F17.20 AI2 input voltage 0.00~10.00V 0.00V ●
F17.21 AI3 input voltage -10.00~10.00V 0.00V ●

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Solar Pump Inverter Chapter 5 Troubles Shooting

Chapter 5 Troubles Shooting

5.1 Main Circuit Terminals

Fault Code P.OFF Fault Type Power Off

Check the three-phase power is
Reason External power supply close Solution
off or not
E.Out1 IGBT Ph-U fault
Fault Code E.Out2 Fault Type IGBT Ph-V fault
E.Out3 IGBT Ph-W fault
Acc/Dec time is too short Increase Acc/Dec time
IGBT module fault Ask for support
Reason Malfunction caused by Solution Inspect external equipment and
interference eliminate interference
Ground is not properly
Fault Code E.oC1 Fault Type Over-current when acceleration
Acc time is too short Increase Acc time
Input voltage is too low Check the power supply
Reason Solution
Capacity of inverter is too
Select bigger capacity inverter
small
Fault Code E.oC2 Fault Type Over-current when deceleration
Dec time is too short Increase Dec time
Load is too heavy Install proper external braking unit
Reason Solution
Capacity of inverter is too
Select bigger capacity inverter
small
Over-current when constant speed
Fault Code E.oC3 Fault Type
running
Sudden change of load or Check the load or reduce sudden
abnormal change of load
Reason Input voltage is too low Solution Check the power supply
Capacity of inverter is too
Select bigger capacity inverter
small
Fault Code E.oU1 Fault Type Over-voltage when acceleration
Input voltage abnormal Check the power supply
Reason After instant power off, Solution
Void restart after power off
restart the rotating motor
Fault Code E.oU2 Fault Type Over-voltage when deceleration
Dec time is too short Increase Dec time
Reason Load is too heavy Solution Increase braking resistance /unit
Input voltage abnormal Check the power supply
Over-voltage when constant
Fault Code E.oU3 Fault Type
speed running
Input voltage abnormal Install input DC reactor
Reason Solution
Load is too heavy Install proper external braking unit
Fault Code E.LU Fault Type DC bus Under-voltage
Reason Input voltage is too low Solution Inspect the input power supply
Fault Code E.oL1 Fault Type Motor overload
Reason Input voltage is too low Solution Inspect the input power supply
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Solar Pump Inverter Chapter 5 Troubles Shooting
Improper motor’s overload
Set proper motor rated current
protection threshold
Motor block or sudden Check the load and adjust torque
change of load boost
Motor drive heavy load at
Select variable frequency motor
low speed for a long time
Fault Code E.oL2 Fault Type Inverter overload
Acc time is too short Decrease acceleration
Restart the rotating motor Avoid restart after power off
Reason Solution
Input voltage is too low Check the power supply
Load is too heavy Select bigger capacity inverter
Fault Code E.SPI Fault Type Input phase failure
1.Check power supply
Reason Phase loss of R,S,T input Solution
2.Check the wiring installation
Fault Code E.SPo Fault Type Output phase failure
Phase loss of U,V,W output
Check the wiring installation of
(or a serious unbalance in
Reason Solution output
3phase input)
Connection loose Check the motor and wiring
E.oH1 Rectify overheat
Fault Code Fault Type
E.oH2 IGBT overheat
Instant over current of
Refer to over current solution
inverter
Short-circuit or ground fault
Check the wiring and install again
occurred at inverter output
Obstruction of ventilation
Clear the ventilation Channel or
channel or Cooling fans of
Replace cooling fan
inverter stops or damaged
Ambient temperature is too
Reason Solution Reduce Ambient temperature
high
Control board wire or
Check the wiring and Installation
plug-ins loss
Auxiliary power damaged or
under voltage of driver Ask for support
voltage
Power module bridge short Ask for support
Control board abnormal Ask for support
Fault Code E.EF Fault Type External fault
SI External fault input Inspect input of external
Reason Solution
terminal take effect equipment
Fault Code E.CE Fault Type Communication fault
Improper baud rate setting Set proper baud rate
Press STOP/RESET to reset. Ask
Receive wrong data
Reason Solution for support
Communication is nterrupted Check wiring of communication
for long time interface
Fault Code E.ItE Fault Type Current detection fault
Wires or connectors of Check the signal linker and insert
Reason Solution
control boards are loose it again

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Solar Pump Inverter Chapter 5 Troubles Shooting
Auxiliary power damaged Ask for support
Hall sensor is damaged Ask for support
Amplifying circuit is
Ask for support
abnormal
Fault Code E.tE Fault Type Motor auto tuning fault
Capacity of motor is not
Change the model of inverter
meet that of inverter
Improper setting of motor Set rated parameters according to
rated parameters motor nameplate
Reason The motor parameter Solution
Run the motor without load and do
auto-tuning are warped with
auto-tuning again
the standard parameter
Check motor's wiring and
Overtime of auto-tuning
parameters
Fault Code E.EEP Fault Type EPROM fault
R/W fault of control Press STOP/RESET to Reset.
Reason parameters Solution Ask for support
EEPROM damaged Ask for support
Fault Code E.PIDE Fault Type Ask for support
PID feedback disconnect Inspect PID feedback signal wire
Reason PID feedback source Solution
Inspect PID feedback source
disappears
Fault Code E.bCE Fault Type Brake unit fault
Braking circuit failure or Inspect braking unit, replace
brake tube damaged braking tube
Reason Too low resistance of Solution
externally connected braking Increased braking resistance
resistor
Fault Code E.ENd Fault Type Setting time has finished
The actual running time is
Reason Solution Ask for support
beyond the setting time
Fault Code E.oL3 Fault Type Electronic overload
Load is too heavy Check the load
Reason Electronic warning point is Solution
Check electronic warning point
too low
Fault Code E.EAH1 Fault Type Output is short-circuited to ground
One phase Output of inverter
Check the motor wiring
is short-circuited to ground
Reason Solution
Current detect circuit is
Ask for support
broken
Fault Code E.EAH2 Fault Type Output is short-circuited to ground
One phase Output of inverter
Check the motor wiring
Reason is short-circuited to ground Solution
Current detect circuit is Ask for support
broken
Fault Code A-LS Fault Type Weak light
Light is too weak to keep
Reason Solution Wait for stronger sunshine
running state
Fault Code A-tF Fault Type Full water

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Solar Pump Inverter Chapter 5 Troubles Shooting
Reason Water is adequate Solution Wait for clearing alert
Fault Code A-LL Fault Type Water shortage
Water sources are lacking of
Reason Solution Wait for clearing alert
water
Fault Code A-LL1 Fault Type Water shortage
Water sources are lacking of
Reason Solution Wait for clearing alert
water

5.2 Common faults and solutions

The drive may have following faults or malfunctions during operation, please refer to the
following solutions.
No display after power on:
Inspect whether the voltage of power supply is same as the inverter rated voltage or not
with multi-meter. If the power supply has problem, inspect and solve it. Inspect whether the
3 phase rectify bridge is in good condition or not. If the rectification bridge is burst out, ask
for support.
Check the CHARGE light. If the light is off, the fault is mainly in the rectify bridge or the
buffer resistor. If the light is on, the fault may be lies in the switching power supply. Please
ask for support. Power supply air switch trips off when power on:
Inspect whether the input power supply is grounded or short circuit. Please solve the
problem. Inspect whether the rectify bridge has been burnt or not. If it is damaged, ask for
support.
Motor doesn't move after inverter running:
Inspect if there is balanced three-phase output among U, V, W. If yes, then motor could be
damaged, or mechanically locked. Please solve it.
If the output is unbalanced or lost, the inverter drive board or the output module may be
damaged, ask for support.
If there is not output voltage, the drive board or the output module may be damaged. Ask
for support.
Inverter displays normally when power on, but breaker switch at the input side trips when
running: Please check whether inverter or motor has short circuit or wrongly connecting
earth.
If the breaker is occasionally switch off and the distance is too long between motor and
inverter, please consider to add AC output choke.

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Solar Pump Inverter Chapter 6 Warranty

Chapter 6 Warranty
6.1 Warranty
The warranty of this inverter is18 months, or we provide 2% spare parts for free. When
any fault or damage occurs on the product, with in the warranty period, our company will
provide free maintenance. After the warranty time, we can provide lifetime paid warranty
service.

6.2 Supplementary
In order to enjoy better after-sales service , please pay attention to the following ：
Provide below information when inquiry, we will make good configuration for you.
1 Pump Power, Voltage, Phase
2 Solar Panel Each panel power, voc voltage, vmp voltage
Provide below photo sand information after installation.
Photos show pump, pump specification, pump and inverter
1 Pump
connection
Photos show inverter installation environment inverter
2 Inverter connection and switch,
LCD screen parameter setting.
Photos show solar panel and inverter connection, solar panel
3 Solar Panel
specification, solar panel array and quantity.

Prompt: Warranty only covers the body of the inverter

6.3 Warranty agreement

1 The warranty of this inverter is 18 months, or 2% spare parts for free. When any
fault or damage occurs on the product, with in the warranty period, our company will
provide free maintenance. After the warranty time, we can provide lifetime paid
warranty service.

2 The warranty time starts from the date when the product is leaving the factory,
and the machine frame code is the only proof to determine the warranty period.

3 Certain maintenance charge should be considered during warranty period if the

fault is caused by the following reason:
·Fault caused by operating against the manual or surpass the standard specification

·Fault caused by self fix and modification without permission.

·Fault caused by poor preservation

·Fault by using the inverter in malfunction

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Solar Pump Inverter Chapter 6 Warranty

·Machine damage caused by fire, salt corrosion, gas corrosion, earthquake,

storm, lightning, abnormal voltage or other force majeure.

4 Please be sure to retain this card and show it to the maintenance service.

44
Solar Pump Inverter Chapter 7 Communication protocol

Chapter 7 Communication protocol

The CT112&CT112A series inverters provide RS485 communication interface. You can
realize centralized control via PC/PLC (set the run commands and function parameters
of the inverter, read the work state and fault information of the inverter) to meet the
specific requirements.

1. Content

The serial communication protocol defines the content and format of the transmission
information for serial communication, including master polling (or broadcast) format,
master encoding method including the required function codes, transmission data and
error check. The slave response also uses the same structure including actuation
confirmation, return data and error check. If an error occurs when the slave receives
information or the slave cannot complete the actuation required by the master, it will
feedback a response of fault information to the master.

2. Application mode

The inverter has access to "single- master multi-slaves" PC/PLC control network with
RS485 bus.

Support Modbus protocol and RTU format; broadcast address is 0 and slave address
can be set to 1~247.

3. Bus structure

(1) interface mode

RS485 (CT112 terminals: 485 + and 485-) hardware interface

(2) transmission mode

Asynchronous serial, half duplex transmission. At the same time, only one can send
data and the other can receive data for the master and the slave. Data in the serial
asynchronous communication process, in the form of a message, can be sent one by
one frame.

(3) topology structure

Single-master multi-slaves network, the slave address in the network must be unique.

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Solar Pump Inverter Chapter 7 Communication protocol

4. Description of the protocol

CT112&CT112A series inverter communication protocol is an asynchronous serial

master-slave Modbus communication protocol and only one device (master) in the
network can establish a protocol (called "query/command"). Other devices (slaves) can
only provide data to respond to the master's "query/command" or make the
corresponding actuation according to the master's "query/command". The master refers
to a personal computer (PC), an industrial control device or a programmable logic
controller (PLC), etc. The slave is inverter. The master can communicate with a single
slave as well as send a broadcast message to all slaves. For the master’s single
"query/command", the slave has to return a message (called a response), for the
master’s broadcast message, the slaves do not need to respond to the master.

5. Communication data format

The Modbus protocol communication data format of CT112 series inverters is as

follows:

In RTU mode, the minimum interval time should be at least 3.5 bytes for message
transmission, which is the easiest way to achieve a variety of character time at the baud
rate. The first transmitted field is the device address. The transmitted characters can be
hexadecimal 0...9 and A...F. The network device constantly detects the network bus,
even during the interval time. When the first field (address field) is received, the
corresponding device decodes next transmitting character. After the last transmitting
character, the interval time of at least 3.5 bytes marks the end of the message. A new
message can start after this pause.

The whole message frame is a continuous transmitting flow. If there is an interval time of
more than 1.5 bytes before the frame is completed, the receiving device will renew the
uncompleted message and assume that the next byte is the address field of a new
message. As such, if the new message follows the previous message within the interval
time of 3.5 bytes, the receiving device will deal with it as the same with the previous
message. If these two phenomena all happen during the transmission, the CRC will
generate a fault message to respond to the sending devices.

RTU frame format

START Interval time of 3.5 bytes

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Solar Pump Inverter Chapter 7 Communication protocol

ADR Communication address: 1～247

CMD 03: read slave parameters; 06: write slave parameters
DATA (N-1)
DATA (N-2) Function parameter address, function parameter number,
…… function parameter value etc.
DATA (0)
CRC CHK low bit
Detection value: CRC
CRC CHK high bit
END Interval time of 3.5 bytes

CMD (command instruction) and DATA

Command code: 03H, read N words (at most 16 words can be read)

For example: the baud rate 19200bps, even check (E, 8,1) for RTU, read continuous two
data from the inverter F06.19 with the slave address of 01.

Master command message

ADR 01H
CMD 03H
High bit of start address 06H (Function code group)
Low bit of start address 13H (Function code bit)
High bit of register number 00H
Low bit of register number 02H
Low bit of CRC CHK 35H
High bit of CRC CHK 46H

Slave response message

ADR 01H
CMD 03H
The number of bytes 04H
High bit of F06.19 data 00H
Low bit of F06.19 data 00H
High bit of F06.20 data 03H
Low bit of F06.20 data E8H
Low bit of CRC CHK FAH
High bit of CRC CHK 8DH

Command code: 06H, write a word

For example: the baud rate 19200bps, even check (E, 8,1) for RTU, write 40.00Hz
(communication without decimal point) (0FA0H) to F00.09H address of the inverter
whose slave address is 02H, and change the keypad set frequency to 40.00Hz.

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Solar Pump Inverter Chapter 7 Communication protocol

Master command message

ADR 02H
CMD 06H
High bit of F00.09 address 00H (Function code group)
Low bit of F00.09 address 09H (Function code bit)
High bit of F00.09 data 0FH
Low bit of F00.09 data A0H
Low bit of CRC CHK 5CH
High bit of CRC CHK 73H

Slave response message

ADR 02H
CMD 06H
High bit of F00.09 address 00H (Function code group)
Low bit of F00.09 address 09H (Function code bit)
High bit of F00.09 data 0FH
Low bit of F00.09 data A0H
Low bit of CRC CHK 5CH
High bit of CRC CHK 73H

Check mode-CRC (Cyclical Redundancy Check) check

The checkout uses RTU frame format. The frame includes the frame error detection field
which is based on the CRC calculation method. The CRC field is two bytes including 16
figure binary values. It is added into the frame after calculated by transmitting device.
The receiving device recalculates the CRC of the received frame and compares them
with the value in the received CRC field. If the two CRC values are different, there is an
error in the communication.

Using the RTU frame format, the message includes an error detection field based on the
CRC method. The CRC field detects the contents of the entire message. The CRC field
is two bytes and contains a 16-bit binary value. It is added to the message by the
transmission device. The receiving device recalculates the CRC of the received
message and compares it with the value in the received CRC field. If the two CRC
values are not equal, the transmission has an error.

During CRC, 0*FFFF will be stored. And then, deal with the continuous 6-above bytes in
the frame and the value in the register. Only the 8Bit data in every character is effective
to CRC, while the start bit, the end and the odd and even check bit is ineffective.

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Solar Pump Inverter Chapter 7 Communication protocol

The calculation of CRC applies the international standard CRC checkout principles.
When you are editing CRC calculation, you can refer to the relative standard CRC
calculation to write the required CRC calculation program.

Here provided a simple function of CRC calculation for the reference (programmed with
C language)

unsigned int crc_cal_value(unsigned char*data_value,unsigned char data_length)

int i;

unsigned int crc_value=0xffff;

while(data_length--)

crc_value^=*data_value++;

for(i=0;i<8;i++)

if(crc_value&0x0001)

crc_value=(crc_value>>1)^0xa001;

else

crc_value=crc_value>>1;

return(crc_value);

Fault message response

The slave uses functional code fields and fault addresses to indicate it is a normal
response or some error occurs (named as objection response). For normal responses,
the slave shows corresponding function codes, digital address or sub-function codes as
the response. For objection responses, the slave returns a code which equals the

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Solar Pump Inverter Chapter 7 Communication protocol

normal code, but the first byte is logic 1.

For example: when the master sends a message to the slave, requiring it to read a
group of address data of the inverter function codes, there will be following function
codes:

0 0 0 0 0 0 1 1 (hexadecimal 03H)

For normal responses, the slave responds the same function codes, while for objection
responses, it will return:

1 0 0 0 0 0 1 1 (hexadecimal 83H)

Besides the function codes modification for the objection fault, the slave will respond a
byte of abnormal code which defines the error reason.

When the master receives the response for the objection, in a typical processing, it will
send the message again or modify the corresponding order.

Error code and meaning

Modbus abnormal code

Code Name Meaning
The command from master cannot be executed. This
01H Illegal command command is only for new version and this version cannot
realize. Slave is in fault state and cannot execute it.
Some of the operation addresses are invalid or not
02H Illegal data address allowed to access. Especially the combination of the
register and the transmitting bytes are invalid.
When there are invalid data in the message framed
received by slave. Note: This error code does not indicate
03H Illegal value
the data value to write exceed the range, but indicate the
message frame is an illegal frame.
06H The slave is busy Inverter is busy (EPPROM is in storage)
The password written to the password check address is
10H Password error
not the same as the password set by P7.00.
In the frame message sent by the upper monitor, the
11H Check error length of the digital frame is incorrect or the counting of
CRC check bit in RTU is different from the lower monitor.
It only happens in write command. The written data
Invalid parameter
12H exceeds the parameter range. The parameter should not
change
be modified now. The terminal has already been used.

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Solar Pump Inverter Chapter 7 Communication protocol

When the upper computer is reading or writing and the

The system is
13H user password is set without password unlocking, it will
locked
report that the system is locked.

Address definition of communication parameters

It is used to control the inverter operation, inverter status and related parameter settings.

Read and write function parameters (some function codes cannot be changed, only for
manufacturers to use):

The rules of parameter address of the function codes:

High byte: group number before the radix point of the function code (00～15) Group 0 to

Group 15

Low byte: the number after the radix point (00～FF)

For example, the parameter address of F13.17 is 0D11H.

Note: Some parameters cannot be changed when the inverter is in the running state and
some parameters cannot be changed in any state. The setting range, unit and relative
instructions should be paid attention to when modifying the function code parameters.
Besides, EEPROM is stored frequently, which may shorten the usage time of EEPROM.
Some functions are not necessary to be stored on the communication mode. The needs
can be met on by changing the value in RAM. Changing the high bit of the function code
from 0 to 1 can also realize the function. The corresponding function code address is as
follows:

High byte: 00～0F

Low byte: 00～FF

For example, F03.12 is not stored in EEPROM, the address is 830CH; the address can
only write RAM and cannot read, read for the invalid address.

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Solar Pump Inverter Chapter 7 Communication protocol

485 communication address

Function Address R/W

Data meaning instruction
instruction definition characteristics

0001H: forward running

0002H: reverse running
0003H: forward jogging
Communication 0004H: reverse jogging
2000H W/R
control command 0005H: stop
0006H: freewheel stop
0007H: fault reset
0008H: jogging stop
0001H: forward running
0002H: reverse running
Inverter status 2100H 0003H: stop R
0004H: fault
0005H: -E.Lv- status
Running frequency (0～Fmax, unit
3000H R
0.01Hz)
3001H Set frequency (0～Fmax, unit 0.01Hz) R
3002H Bus voltage R
3003H Output voltage R
3004H Output current R
3005H Running speed R
3006H Output power R
3007H Reserved R
3008H Reserved R
3009H Reserved R
Input terminal status (000 to 0FF, unit
300AH R
The address of the 01H)
running /stopping Output terminal status (00 to 0F, unit
300BH R
parameter 01H)
300CH Analog AI1(0.00～10.00V, unit 0.01V) R
300DH Reserved R
300EH Reserved R
300FH Reserved R
3010H Reserved R
3011H Reserved R
3012H Reserved R
3013H Reserved R
3014H External count number R
3015H Torque set value R
3016H Reserved R

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Solar Pump Inverter User’s Information

User’s Information

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Solar Pump Inverter User’s Information

54