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Top manufacturer of AC Drive in China!
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Top Brand
AC Drive/ Frequency Inverter/ AC Servo Drive/PV Inverter/Intelligence Robot/PLC/HMI/…
Veichi SI10 Solar Pumping Inverter
High efficiency
MPPT, CVT
High reliability
Easy operation
First solar pumping controller developed company in China
www.veichi.org
Shenzhen & Suzhou China
Top manufacturer of AC Drive in China!
Creative Technology, Service Leading! www.veichi.com
The solar array, an aggregation of many solar modules
INTRODUCTION OF SOLAR PUMPING SYSTM
Solar Pumping system becomes more and more popular, it can be
connected n series and parallel. Absorbs sunlight radiation and
applied to daily ( underground water), agriculture irrigation,
converts into electrical energy, providing dynamical water for
forestry irrigation, desert control, pasture animal husbandry, water
the whole system. The pumping inverter controls and adjusts
supply for islands, wastewater treatment engineering , and so on.
the system operation and converts the DC produced by solar
In recent years, with the promotion of the utilization of new energy
array into AC to drive the pump, and adjust the output
resources, solar pumping systems are more and more used in
frequency in real-time according to the variation of sunlight
municipal engineering, city center squares, parks, tourist sites,
intensity to realize the maximum power point tracking( MPPT).
resorts and hotels, the landscapes and
The pump, drive by 3-phase AC motor, can draw water from
Fountain systems in the residential areas. This system is
the deep wells or rivers and lakes to pour into the storage tank
composed of a solar array, a pump and solar pumping inverter.
or reservoir, or directly connect to the irrigation system,
fountain system, ect. According to the actual system demand
Based on the design philosophy that it is better to store water than
and installation conditions, different types of pump such as
electricity, there is no energy storing device such as store battery
centrifugal pump, axial flow pump, mixed-flow pump or deep-
in the system.
well pump can be used.
Veichi solar pumping VFDs
Applications
1.
2.
3.
4.
5.
6.
7.
8.
Ground water lowering,
Irrigation systems
Industrial Application
Drip irrigation& sprinkler
Tank/ cistern filling
Wildlife refuge
Rural water supply for ranches, cabins, and
cottages
Fountains.
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Veichi SI10 Solar Pumping Frequency Inverter An easy to interface is provided to enhance
configurability and enable remote system monitors
VEICHI-SI10 Variable Frequency Drive is positioned in
environmental-friendly and economical PV market, the product is
applicable to PV pumping system, replaces water storage with
electric storage and needs no battery modules. The direct current
generated by solar modules is input to the inverter and then
converted into the alternating current to drive various pumps
directly. Additionally, the output frequency is adjustable in real time
according to sunlight intensity change.
Specification:
200 -400VDC input, 220VAC output, 0.75 to 3.7kw
350-780VDC input, 380VAC output, 0.75 to 160kw.
Descriptions and Features:
 Internal diagnostics will tolerate a lower input voltage
Whenever possible, the controller attempts to regulate the
pump load in a manner that optimizes for maximum power
transfer from the solar array.
The drive manually switches to AC backup power( when
available) if the DC primary source is unable to support pump
operation
TI DSP technology and Infineon PIM design, high quality.
MPPT function is available , CVT function also is OK.
 A four-digit seven-segment display provides a detailed
indication of systems status.
Two line display keypad is options
Built in RS485 ports through 7.5kw, laptop software control is
available
Protection features
Electronic monitoring gives the controller the capability to monitor
the system and automatically shut down in the even of: Dry run
conditions- with smart pump monitoring, High voltage surge, Low
input voltage, Open motor circuit, Short circuit, Over heat, Earth
fault, Phase missing…
TYPE CODE
SI10-D3/D5-0XXG ( support MPPT &CVT)
SI10-S2/T3-0XXG ( only support CVT)
S2/D3= 200V-400VDC in put or 220V-240V AC output
T3/D5= 350V-780VDC or 380V to 480V AC output
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Technical Specification
Recommended MPPT voltage range
220~400VDC for 220VAC output 1.5Kw to 3.7kw.
350~780VDC, for 380VAC output 1.5kw to 11kw.
Bigger power above 15kw only with CVT control . 11kw to 160kw.
Recommended input voltage
350V DC for 220VAC motor output
620V DC for 380V AC motor output
MPPT efficiency
Up to 97%
Input channel
0-10V, 0/4-20mA
Maximum DC power input
400VDC for 220AC output /780VDC for 380V AC ouput
Rated output voltage
3-phase , 0-220VAC
3-phase 0-380VAC
Output frequency range
0~50Hz
Max efficiency of the machine
97%
Ambient temperature range
(G-type inverter with water pump)
Cooling method
Air cooling
Protection degree
IP20
Running mode
MPPT or CVT
Altitude
Below 1000m; above 1000m, derated 1% for every additional 100m.
Standard
CE
AC input backup circuit
Design based on Veichi AC60 series, more specification please refer to AC60 general
purpose inverter manual
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Creative Technology, Service Leading! www.veichi.com
Solar panel
arrays
Solar panel
arrays
Position
pump off
range
Position pump on
Veichi
Solar
pumpin
g
VSD
Sealed cable
clamp
Pumping
range
Cable
Position
pump
off
The system is activated when terminal COM,
FWD connected on, stop while off
The system also control by Terminal X4 and
COM ON/ON state
When connect on, the system stop.
pumps
VSD
Solar pumping system
System wiring diagram
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Specification data of solar pumping inverter.( Red mark means have MPPT function in hardware and
software. The rest type only have CVT function. ( MPPT also is available should quantity)
Model
Max. Input
Output
Power of Power of
Range of Output
G.W.
Voltage of
Freq. N.W.
Controlle Solar Arrays
MPPT(VDC Current
(KGS
Solar
(KGS)
r(KW)
(KW)
)
(A)
)
Arrays(V)
(Hz)
3phase 220V output
SI10-S2-R75
SI10-S2-1R5
SI10-D3-2R2 *
SI10-D3-3R7 *
0.75
1.5
2.2
3.7
0.975
1.95
2.86
4.81
390
390
390
390
SI10-T3-R75
SI10-T3-1R5
SI10-T3-2R2
SI10-D5-3R7 *
SI10-D5-5R5 *
SI10-D5-7R5 *
SI10-D5-011 *
SI10-T3-015
SI10-T3-018
SI10-T3-022
SI10-T3-030
SI10-T3-037
SI10-T3-045
SI10-T3-055
SI10-T3-075
SI10-T3-093
SI10-T3-110
SI10-T3-132
SI10-T3-160
0.75
1.5
2.2
3.7
5.5
7.5
11
15
18
22
30
37
45
55
75
93
110
132
160
0.975
1.95
2.86
4.81
7.15
9.75
14.3
19.5
23.4
28.6
39
48.1
58.5
71.5
97.5
120.9
143
171.6
208
780
780
780
780
780
780
780
780
780
780
780
780
780
780
780
780
780
780
780
220~400
4A
0-50
220~400
7A
0-50
220~400
10A
0-50
220~400
17A
0-50
3phase 380V output
350~780
2.5A
0-50
350~780
3.7A
0-50
350~780
5A
0-50
350~780
8.5A
0-50
350~780
13A
0-50
350~780
17A
0-50
350~780
25A
0-50
350~780
32A
0-50
350~780
38A
0-50
350~780
45A
0-50
350~780
60A
0-50
350~780
75A
0-50
350~780
90A
0-50
350~780
110A
0-50
350~780
150A
0-50
350~780
170A
0-50
350~780
210A
0-50
350~780
250A
0-50
350~780
300A
0-50
Packing
Size(mm)
L
W H
Controller
Size(mm)
W
L
H
2.2
2.2
3.6
3.6
2.7
2.7
4.3
4.3
239
239
363
363
179
179
226
226
210
210
223
223
122
122
159
159
182
182
246
246
154.5
154.5
157.5
157.5
2.2
2.2
2.2
3.6
3.6
6.1
6.1
14.5
22
22
22
22
43
49
49
75
75
85
167
2.7
2.7
2.7
4.3
4.3
7.2
7.2
16.2
20
20
20
20
36
45
45
67
67
77
155
239
239
239
363
363
385
385
580
600
600
600
600
702
670
670
860
860
860
1240
179
179
179
226
226
289
289
351
410
410
410
410
447
520
520
600
600
600
680
210
210
210
223
223
256
256
321
370
370
370
370
383
460
460
560
560
560
590
122
122
122
159
159
195
195
255
281
281
281
353
353
645
645
780
780
780
1188
182
182
182
246
246
275
275
434
496
496
496
600
600
380
380
515
515
515
600
154.5
154.5
154.5
157.5
157.5
167.5
167.5
224
256
256
256
286
286
297
297
340
340
340
370
Top manufacturer of AC Drive in China!
Creative Technology, Service Leading! www.veichi.com
Commissioning
Input connecting with R T for DC input, output terminals U.W.V for connection motor.
Suggest solar panel MPPT voltage range 480V~560V.
•Check wiring before power on.
•Check parameter C-21: input voltage; C-25: controller rated power whether right. Check parameter E-56:
motor rated voltage; E-57: motor rated current; E-58: motor rated frequency whether this parameters fit to
nameplates.
•Perform JOG first to see the direction of motor running if correct. If yes, process to FWD
Related control parameters:
E-02: Frequency reference giving selection (10: solar pump control)
E-13: ACC time (20S~40S)
E-14: DEC time (3S~10S). If set it too big, make pump output power reduce too slowly. While there is
cloud, the solar panel power is not enough, make bus voltage reduce, inverter will enter sleep state. If set it
too small, make pump output power reduce too quickly. Pump will shake.
Please configure motor parameters as name plate of m
E-56, Motor rated voltage,
E-57, motor rated current
E-58, rated frequency of motor
E-59 rated speed of motor.
Solar pumping special purpose parameters.
H-32: Lowest run frequency (20HZ)
H-33: Lowest run frequency duration (10.0S)
H-34: Stop wait time (30.0S)
H-35: Automatic sleep voltage (Vmp*60%)
H-36: Renew voltage in dormancy ( Vmp*90%)
H-37: Max MPPT voltage setting (Vmp* 105%）
H-38: Min MPPT voltage setting (Vmp*85%）
H-39: MPPT voltage search interval (0.2 S)
H-40: MPPT voltage step length （ranged 2-10V, 3.7kw5V , 5.5kw: 6V 7.5kw: 6/8V ）
H-41: MPPT sample cycle (0.03S~0.05S)
Top manufacturer of AC Drive in China!
Creative Technology, Service Leading! www.veichi.com
Selecting solar arrays for Veichi solar pumping VFDs recommend
Solar arrays open circuit voltage specification
Open circuit voltage range
Veichi solar Maximum Open circuit voltage range
Open circuit voltage range 43V±2V
21V±2V
31V±2V
pumps inverter Input DC
Short
Serial,
model
current Power±3 Short
Power±3
Power±3W Short circuit
Serial,
Serial,
Inverter rated
circuit parallel
circuit
parallel No.
parallel No.
current
WP
WP
P
current
No.
current
current
30*1
2.3A
SI10-T3-R75G
4.6A
30WP
2.75A
SI10-T3-1R5G
7A
60WP
3.48A
30*1
3.7A
SI10-T3-2R2G
10A
90WP
5.5A
30*1
5A
SI10-D5-3R7G
17A
85WP
4.7A
28*2
8.5A
SI10-D5-5R5G
23A
180WP
7.33A
19*2
13A
SI10-D5-7R5G
32A
240WP
8.81A
20*2
200WP
7.32A
15*3
17A
SI10-D5-011G
48A
180WP
7.33A
20*4
240WP
7.32A
15*4
25A
SI10-T3-015G
64A
240WP
8.81A
20*4
240WP
7.32A
15*5
32A
SI10-T3-018G
76A
240WP
8.81A
20*5
240WP
7.32A
15*6
38A
SI10-T3-022G
80A
240WP
8.81A
20*6
270WP
7.32A
15*7
45A
SI10-T3-030G
90A
240WP
8.81A
20*8
240WP
7.32A
15*10
60A
SI10-T3-037G
120A
270WP
8.81A
20*9
270WP
7.32A
15*11
75A
SI10-T3-045G
130A
270WP
8.81A
20*10
270WO
7.32A
15*14
90A
SI10-S2-R75G
SI10-S2-1R5G
SI10-D3-2R2G
SI10-D3-3R7G
7A
14A
20A
32A
30WP
60WP
90WP
90WP
2.75A
3.48A
5.5A
5.5A
17*2
17*2
17*2
17*3
4A
7A
10A
16A
Note: The required solar voltage is 1.15 times of Inverter DC bus voltage. For example: In D5 series, recommend 540V*1.15=621V; in D3 series,
recommend 311*1.15=357V.
The required of power solar arrays is 1.3 times of rated power of inverter, shouldn’t less than 1.2 times of rated power of inverter. For example,
7R5G, the required power is 7500*1.3=9750w.
The current of solar arrays selecting approximate to rated current of inverter is OK.
The maximum DC current input selecting according to rated current of IGBT