Veikong VFD500-PV Series User manual

Operation manual
VFD500-PV/VFD500M-PV
Series
Solar pump Inverter

1
Solar pumping inverter user manual
1、VFD500-PV Electrical cable Connection
Please follow the diagram below for wiring. And pay attention to the following issues：
Please follow the diagram below for wiring. And pay attention to the following issues：
+ PB -
DC-LINK
RST
POWER MOTOR
U V W
1Figure 1-1 SIZE A~SIZE C 0.75kw-15kw Main Circuit Terminal
2 Figure 1-2 SIZE D 18.5kw-22kw main circuit terminal block diagram
3 Figure 1-3 SIZE E 30-37kw 4 Figure 1-4 SIZE F~G 45-90kw

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5 Table 1-5 Function description of the main circuit terminal of the inverter
Terminal
Function instruction
R、S、T
AC power input terminal, connect three-phase AC power
U、V、W
Inverter AC output terminal, connect three-phase AC motor
+、-
The positive and negative terminals of the internal DC bus are connected to the
external brake unit or For common DC bus
+、PB
Braking resistor connection terminal when built-in brake unit
Ground terminal, ground
EMC、VDR
Safety capacitor and varistor grounding selection screw (SIZE A~SIZE C EMC
screw on the left side of the fuselage)
➢The power output of the PV panel is connected to the “+” and “-” terminals. Please note that the
polarity is not reversed.
➢Make sure that the inverter input AC voltage level is consistent with AC grid voltage before
connecting with Input “R”, “S” and “T” terminals
➢If Grid is single-phase power supply, you can connect to R T or any two terminals of “R”, “S” and
“T”。
2、VFD500M-PV Electrical cable Connection
Please follow the diagram below for wiring. And pay attention to the following issues：
Please follow the diagram below for wiring. And pay attention to the following issues：
5 Table 1-6 Function description of the main circuit terminal of the inverter
Terminal
Function instruction
L1、L2、L3
AC power input terminal, or solar DC supply terminal
U、V、W
Inverter AC output terminal, connect three-phase AC motor
+、PB
+ for solar positive and PB for solar negative
Ground terminal, ground
EMC、VDR
Safety capacitor and varistor grounding selection screw (SIZE A~SIZE C EMC
screw on the left side of the fuselage)
➢The power output of the PV panel is connected to the any two terminal of L1 L2 L3 on priority
Or if L1 L2 L3 are connected for AC grid ,+ terminal is for solar positive and PB for solar negative.
➢Make sure that the inverter input AC voltage level is consistent with AC grid voltage before
connecting with Input “L1”, “L2” and “L3” terminals
➢If Grid is single-phase power supply, you can connect to L1 L2 or any two terminals of “L1”, “L2”
and “L3”。

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1.1 Electrical Specifications
Table 1-1 Electrical Specifications
220V
380V
Max input DC voltage(VOC)
450V
800V
DC voltage range
200~450VDC
350~800VDC
Recommended DC input
voltage range (Vmpp)
250V-400V
450V-600V
Recommended Input Operation
Voltage
305V(Vmpp)
530V(Vmpp)
MPPT efficiency
>99%
Rated output voltage
1/3-phase 220VAC
3-phase 380-480VAC
Output frequency range
50/60Hz
Max efficiency of the machine
99%
Ambient temperature range
-10 °C~50 °C, derating if the temperature is above 40 °C
Cooling method
Air cooling
Protection degree
IP20/IP21
Altitude
Below 1000m; above 1% for every additional 100m.
Standard
CE/ROHS
Noted: We suggest solar panel power should be 1.4-1.5 times higher than solar pump power ,and solar pump
inverter power should be higher level than solar pump. When solar pump distance to inverter higher than
100m,it should be equipped with Output reactor or higher level power inverter .for Solar panel,l total VOC
less than Maximum DC voltage of inverter and Solar panel vmp is recommend 530V for 380V pump and 305V
for 220V pump
1.2 Power degree AND Technical SPECIFICATION
Power size of VFD500-PV refers to the standard 4 poles induction motor at rated voltage.
Overload: 150% rated output current, 1 minute

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Drive model
Max DC input current (A)
Rated output current (A)
Applicable water pump (kW)
VFD500M-40T00150-PV
9
3.7
1.5
VFD500M-40T00220-PV
12
5
2.2
VFD500M-40T00400-PV
16.5
9.4
4
VFD500M-40T00550-PV
23.9
13
5.5
VFD500M-40T00750-PV
30.6
17
7.5
VFD500-40T00150-PV
9
4.2
1.5
VFD500-40T00220-PV
12
5.6
2.2
VFD500-40T00400-PV
16.5
9.4
4
VFD500-40T00550-PV
23.9
13
5.5
VFD500-40T00750-PV
30.6
17
7.5
VFD50040T01100-PV
39.2
25
11
VFD500-40T01500-PV
49.0
32
15
VFD500-40T01850-PV
50
37
18.5
VFD500-40T02200-PV
60
45
22
VFD500-40T03000-PV
81
60
30
VFD500-40T03700-PV
90
75
37
VFD500-40T04500-PV
130
90
45
VFD500-40T05500-PV
150
112
55
VFD500-40T07500-PV
200
152
75
VFD500-40T09000-PV
250
176
90
VFD500-40T11000-PV
300
210
110
VFD500-40T13200-PV
360
253
132
VFD500-40T16000-PV
430
304
160
VFD500-40T18500-PV
500
360
185
VFD500-40T20000-PV
550
380
200
VFD500-40T22000-PV
620
426
220
VFD500-40T25000-PV
680
465
250
220V single phase/three phase level
VFD500-20T00075-PV
6.7
4.5
0.75
VFD500-20T00150-PV
9.9
7
1.5
VFD500-20T00220-PV
14.1
10.6
2.2
VFD500-20T00400-PV
22.6
17
4
VFD500-20T00550-PV
30
25
5.5

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Table 1-2 380V-480V rating data
Noted 1: when the output voltage is 380V, the output current will be rated value; when the output
voltage is 400V、415 V or 440V,the output current will be calculated according to power.
Noted 2: when the output voltage is 220V, the output current will be rated value
VFD500-20T00750-PV
40
32
7.5
VFD500-20T01100-PV
60
45
11
VFD500-20T01500-PV
81
60
15
VFD500-20T01850-PV
90
75
18.5
VFD500-20T02200-PV
130
90
22
VFD500-20T03000-PV
150
112
30
VFD500-20T03700-PV
200
152
37
VFD500M-20T00150-PV
9.9
7
1.5
VFD500M-20T00220-PV
14.1
10.6
2.2

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For 380V OR 220V or 110V Three phase motor Pump connection
M
U
V
W
R
S
T
3 phase power input
DI1
DI2
DI3
DI4
COM
AI1
AI2
485+
485-RS485 port
AO2
GND
AO1、AO2 output:
0～10V/0～20mA
DO1
COM
T1A
T1C
T1B
+10V
PLC
+24V
-
+PB
HDI
HDO
COM
AO1
Relay 1 output,
Default is fault
signal output
485
ON
OFF
AI1
V
AI2
V
I I I I
AO1
V
AO2
V
ON ON
OFF OFF
Grounding
Connector slip
GND
Main circuit
Control circult
Q2
Solar panels
Q1
Start/stop terminal
Forced switch to
mains
High water level switch
Low water level switch
COM
AI1、AI2 input:
0～10V/0～20mA
T2A
T2C
T2B Relay 2 output,
Default is auto main
& PV switching
(Optional)
Water
tower Well
1.3 VFD500-PV Wire Diagram of solar pump inverter (three phase pump)

7
M
U
V
W
R/L1
S/L2
T/L3
3 phase power input
AI1
AI2
485+
485-RS485 port
GND
AO output:
0～10V/0～20mA
TA
TC
TB
+10V
+PB
HDO
COM
AO
Relay
output,Default is
fault signal output
GND
Main circuit
Control circuit
Q2
Solar panels Q1
VI V
ON
I
OFF
ONOFF PE
AO
AI1
485
+24V
DI1
DI2
COM
HDI
Start/stop terminal
Forced switch to
mains
DI3
DI4
High water level switch
Low water level switch
COM
Water
tower Well
AI input:
0～10V/0～20mA
1.4 VFD500M-PV Wire Diagram of solar pump inverter (three phase pump)
NOTE:
1:VFD500-PV Solar array output should be connected to the terminal ( +DC、－DC) of the
drive, please pay attention to the polarity of the solar array or you can connect solar array to R
and T but VFD500M-PV Solar array output should be connected to L1 L3 OR L1 L2 OR L2 L3
2: For control wire, recommend using shielded cable or shielded twisted pair.
3: Do not suggest using the power contactor to control the RUN/STOP of the drive.
4:In default carrier frequency, the maximum motor cable length is 100 meters. When the
motor cable is longer than 100m, it is recommended to use output reactor.

8
For 220V single phase motor connection
1: Single phase asynchronous motor wiring method (without
starting capacitor):
Notice: U is connected to the common end of the starting winding and the working
winding, V is connected to the starting winding, and W is connected to the working
winding;
Single-phase asynchronous motor if the rotary steering is not correct, you can
change the V and W wiring or set P22.13=1。
First solution: Set parameter P11.01=1 (Single phase motor type without capacitor) or
second solution: set P00.11=00031 if your motor frequency is 50 hz or set P00.11=32 if
your motor frequency is 60HZ
Motor
U
V
W
R
S
T
Single phase AC
power input
-
+PB
Main circuit
Q2
Solar Panels
Q1 Public terminal
Start winding
Working winding
VFD500-PV Wire Diagram of solar pump inverter (single phase pump without capacitor)
M
U
V
W
R/L1
S/L2
T/L3
Single phase AC
power input
+PB
Main circuit
Q2
Solar Panels
Q1
VFD500M-PV Wire Diagram of solar pump inverter (single phase pump without capacitor)

9
For 220V single phase motor connection
2:Single-phase asynchronous motor wiring method (with capacitor)
Notice1:First solution: Connect motor cable to power terminal U and V and enter BSC
mode to Set parameter P23.15=0(output phase loss shielding protection) or second
solution: set macro P00.11=00021 if your motor frequency is 50HZ or set P00.11=22 if
your motor frequency is 60HZ
M
U
V
W
R
S
T
Single phase AC
power input
-
+PB
Main circuit
Q2
Solar Panels
Q1
Public terminal
VFD500-PV Wire Diagram of solar pump inverter (single phase pump with capacitor)
Notes: Single phase motor has three lines, first use the universal meter to check the
three lines resistor, the biggest value two lines parallel the start capacitor (recommend
the capacitor volume is 150UF/250V), the other line(common-coil) connect the power
terminal. Then use the universal meter to check the common coil with the other two
lines resistor, the lower one connects another power terminal