Veichi SI30 series User manual

SI30 Solar Pump Inverter Manual
1
Chapter 1: Safety Requirement and Cautions
To ensure safety of your health, equipment and property, please read this chapter carefully before using
the solar pump inverter and act in compliance with the instructions when installing, debugging, running
and overhauling the inverter.
1.1 Safety Definition
Danger: it will cause danger of serious injuries and even death while operating against the rules.
Caution: it will cause danger of light injuries or equipment destruction while operating against the
rules.
Note: some information is useful while operating and using solar pump inverter.
1.2 Safety Requirements and Cautions
●Before Installation
Danger
1.
Only qualified personnel can operate the equipment. Before operating, be sure to carefully
read the manual. The safe operation depends on the proper processes of choosing models,
carrying, installation, operation and maintenance.
2. Don’t use the damaged or incomplete solar pump inverters; Otherwise, there is risk of injury.
●Installation
Danger
1. Please install the solar pump inverter on metal or other nonflammable material, and keep it
away from the combustible material. Otherwise there is danger of fire.
2. No unauthorized modification to the solar pump inverter; Otherwise there is danger of
damage.
3. Normal solar pump inverter without explosion-proof cannot be installed where with explosive
gas or dust; Otherwise there is danger of explosion.
●Wiring
Danger
1. Wire is connected only when the main circuit is cut off, otherwise there is a danger of shock.
2. Wire is connected by professional person only. Otherwise there is a danger of shock.
3. Earth must be reliable. Otherwise there is a danger of shock.
4. DC power supply should not be connected to output terminals U, V, W, otherwise there is a
danger of damage to solar pump inverter.
5. No drop of bolt, spacer, metal stick, conducting wire or other things into the inner of solar
pump inverter; Otherwise there is a danger of fire or damage to solar pump inverter.
Attention
1. If the damage to solar pump inverter or other equipment is caused by improper wiring and
utilization or unauthorized alteration, the user should shoulder all responsibilities.

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2. Please make sure all wirings meet EMC requirements and satisfy safety standards in the
local area; Please refer to recommendations in this manual or national standards of wire
diameter to avoid accidents.
3. Static electricity on human body would seriously damage internal MOS transistor, etc. Don’t
touch the printed circuit boards, IGBT or other internal devices without anti-static
measurements; otherwise it will cause the malfunction to solar pump inverter.
4. Please don't connect phase shift capacitance or LC/RC noise filter to the output circuit of
solar pump inverter; Otherwise it will damage the inverter.
5. Please don't connect the magnetic switch or magnetic contactor to the output circuit of solar
pump inverter; When solar pump inverter is in the operation with load, magnetic switch or
magnetic contactor can make inverter over-current protection act. It will damage solar pump
inverter seriously.
6. Please don't dismantle the panel cover, and it only needs to dismantle the terminal cover
when wiring.
7. It is forbidden to do any pressure test on solar pump inverter, otherwise it will damage the
solar pump inverter.
●Before Electrification
Danger
1. Please make sure that voltage grade of power supply is consistent with solar pump inverter's
rated voltage and then check whether the wiring is correct, and whether there is short circuit
in peripheral equipment's circuit. Otherwise it will damage solar pump inverter and other
equipment.
2. Before the solar pump inverter is connected to the input power supply, make sure that the
cover has been well fixed. Otherwise it will cause electric shock.
3. For the solar pump inverters whose storage time is over 1 year, when electrification, the
voltage should be raised by booster from low to high. Otherwise it will damage the solar
pump inverter.
Attention
1. Check if all periphery fittings are wired properly according to the handbook; Otherwise it will
cause accidents.
●After Electrification
Danger
1. After electrified, it is forbidden to open the cover, make wiring, and check up; Otherwise, it will
cause the danger of electric shock.
2. After electrified, it is forbidden to contact internal wiring board and its parts. Otherwise it will
cause the danger of electric shock.
3. Do not operate or touch solar pump inverter with wet hand. Otherwise there is danger of
damage to solar pump inverter and electric shock.

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Attention
1. Please set the parameter of solar pump inverter cautiously; Otherwise it will damage
equipment.
●Operation
Danger
1. Before running, please check and confirm the application range of the machine and
equipment once more; Otherwise it will cause accidents.
2. Please don't touch the cooling fan and braking resistance to check the temperature;
Otherwise there is a danger of getting burn.
3. Unprofessional workers are banned to check the signals in the running stage; Otherwise it
will cause injuries and damage the equipment.
Attention
1. Please don't turn off the equipment by switching off power; Please cut off the power supply
after the electric machine stops running; Otherwise it will damage the solar pump inverter.
2. Please avoid anything dropping into the equipment when the solar pump inverter is running;
Otherwise it will cause electric shock.
●Maintenance
Danger
1. Please don't maintain and repair the equipment with electric; Otherwise it will cause electric
shock.
2. Before maintaining and repairing the solar pump inverter, please make sure the indicator
lights of power supply have completely turned off; Otherwise it may cause electric shock and
damage the solar pump inverter.
3. Persons who have not passed specialized train are not allowed to conduct the solar pump
inverter maintenance; Otherwise it may cause electric shock and damage the solar pump
inverter.
1.3 Cautions in Using
1. In application of this series solar pump inverter, you have to confirm all machine insulation to prevent
damage to the equipment. Moreover, when the motor working in tough environment, please periodic
inspect the electrical insulation to ensure the safety of the system work.
2. If the motor adapter is not consistent with solar pump inverter's rating current (The rating current of
the motor is far smaller than that of solar pump inverter), please adjust the protective value to ensure
safe running.
3. In occasions such as load raises, usually there is negative torque and solar pump inverter breaks off
for over-current or over-voltage. In this case, you should consider choosing the matching brake unit.

SI30 Solar Pump Inverter Manual
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4. Solar pump inverter, in a certain output frequency range, can meet the mechanical resonance of the
load equipment. To avoid it, you can set up jumping frequency.
5. As output voltage of the inverter is pulse-wave type, if there is capacity which can improve power
factor or pressure-sensitive resistance which used for thunder-proof in the voltage output side, the
solar pump inverter will break off or its parts will be damaged, so it is necessary to dismantle them.
Moreover, it is proposed not install switch parts like air switch and contactor (if it is necessary to
install switch on output side, please make sure the output electricity of solar pump inverter is zero
when the switch is working)
6. At over 1,000 meters altitude, the inverter’s heat dissipation function worsened due to the thin air, it is
necessary to use less.
7. The inverter output voltage is pulse wave type. If using digital multi-meter measurement, deviation of
the reading will be great. And the deviation is different by using different type of digital multi-meter.
Under normal circumstances, while RMS 380V, digital multi-meter reading is around 450V.
8. Solar panel can be connected in series or parallel. For rated voltage 380V controller, we suggest
solar panel open circuit voltage should be between 620~ 750V.
1.4 Technical Specification
Solar pump
inverter
power(KW)
Pump
Max solar
power input
(KW)
Max DC
input
voltage
(V)
Recommend
Voc voltage
(V)
Rated
output
current
(A)
Output
frequenc
y(Hz)
Rated
power
(KW)
Rated
voltage
(V)
SI30-D1 series, DC90-400VDC input, 3 phase 110-230VAc output, suit for AC110 pump
0.75
0.75
110
1.0
400
175~380
7A
0-320
1.5
1.5
110
1.95
400
175~380
10A
0-320
SI30-D3 series,DC150V-450V input, 3 phase 220-240VAc output, suit for AC220 pump
0.75
0.75
220
1.0
450
360~430
4A
0-320
1.5
1.5
220
1.95
450
360~430
7A
0-320
2.2
2.2
220
2.86
450
360~430
10A
0-320
SI30-D5 series,DC300V to 800VDC input, 3 phase 230-460VAC output, suit for AC380V pump
0.75
0.75
380
1.0
800
620
～
750
2.5
0-320
1.5
1.5
380
2.2
800
620
～
750
3.7
0-320
2.2
2.2
380
3.3
800
620
～
750
5.0
0-320
4
3.7
380
5
800
620
～
750
10
0-320
5.5
5.5
380
8
800
620
～
750
13
0-320
1.5 Cautions in Disposal
When you dispose solar pump inverter, please pay attention to:
1. Electrolytic capacitor: the electrolytic capacitor of main circuit or the printing plate may explode when
they are burned.
2. Plastic: plastic incineration may generate toxic gases.
3. Dispose method: please dispose as industrial waste.

SI30 Solar Pump Inverter Manual
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Chapter 2: Installation and Wiring
2.1 Products Appearance
2.2 Open Cover
Remove 4 fixed screws in the cover and turn from right to left to open the top cover, as shown below:
Remove 4 fixed
screws Turn from right to left to open the top
cover

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2.3 Inverter Dimension
Dimensions for 4 kW and below are shown as follow:
364
446.5
350
285
308
221
270
M6(installation hole)
151.37

SI30 Solar Pump Inverter Manual
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5.5kW dimension as follow:
285
308
350
364
446.5
195.87 268
250
7.5(installation hole)
299
151.37
195.87

SI30 Solar Pump Inverter Manual
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2.4
Solar Controller Wiring
● Standard Wiring
Note:the function described in brackets is the factory default
setting
V
W
U
M
~
Shielded cable or amoured cable
(grounding nearby inverter)
E
(Earthing resistance is less than 10Ω)
W
V
U
Output
Filter
+10V
Frequency
control input
R/L
T/N
S
AC
Power
Input
AI1
AI2
Twisted-pair shielding cable (grounding nearby by inverter)
Multi-function
input
terminals
(water fulfilled detection reset)
(water fulfilled detection alarm)
(reversal running)
(forward running)
COM
X3
X4
X1
X2
Solar Pump Inverter
2.AI1/AI2 internal resistance:75KΩ
1.+10V maximum output:50mA
Note
：
2. stands for control circuit terminals.
stands fo main ciruit terminalsr
.
Note
：
1.
Contactor
Breaker
(
0~10V)/
(
4~20mA)
+24V
A+
B-
RS485 differential
communication 120Ω
Voltage/current analog input
(
0~10V)/(4~20mA)
Voltage/current analog input
GND
P
N
DC
Power
Input
( )
+
(-)
AC/DC
Module
P1
N1
COM
+24V
Maximum output of 24V auxiliary
power is 100mA
●
Control loop terminal instructions
Terminal
Function definition Description
+10V 10V auxiliary power supply output, constitutes loop with GND. MAX output 50mA
+24V 24V auxiliary power supply output, constitutes loop with COM. MAX output 100mA
COM 24V power reference ground MAX output 24VDC/100mA
A+ RS485 communications
+
B- RS485 communications -
AI1 analog input 1 Voltage, current type optional
AI2
analog input 2
Voltage, current type optional
GND
analog signal
ground
X1 Forward running input, and constitutes loop with COM
X2 Reverse running input, and constitutes loop with COM
X3 Full water detection alarm, and constitutes loop with COM
X4 Full water detection reset, and constitutes loop with COM
RJ45 External keyboard connection terminal

SI30 Solar Pump Inverter Manual
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2.5 Terminal diagram
● D3 model with output filter ● D5 model with output filter
+_
L N
U V W
U1
V1
W1
U1 V1 W1
+_
ST
U V W
U1
V1
W1
U1 V1 W1
R

SI30 Solar Pump Inverter Manual
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● Inverter board terminal diagram ● Terminal diagram of control panel
U1
V1
W1
+_

SI30 Solar Pump Inverter Manual
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Chapter 3: Basic Operation and Trial Run
3.1 Keyboard Layout and Function Specification (optional)
●
Keyboard Appearance
●
Key Function
Key Name Function
Menu key
Enter menu while standby or running. Press this key to return
back while modifying parameters. While standby or running,
press for 1 sec to enter monitoring interface.
Confirm/modify
key
Press to modify parameter while in menu interface. Press again
to confirm after modifying. While standby or running, press to
change LED monitoring items at stop.
Up/down key
Select parameter group in menu interface. Modify parameter
while in modify interface. Modify given frequency, PID, given
torque or magnetic powder clutch given torque while at standby
or condition monitoring state.
Shift key
Select digit of function no modified by up/down key, Select
parameter digits modified by up/down key. Change LED
monitoring items while standby or running.
Forward run
key
While run/stop is controlled by keyboard, press this key, the
inverter forward rotate and the indicator is always on. While
reverse, the indicator sparks.
Jog/reverse
key
This key function can be defined by parameter [F4.02]. Press it,
machine reverses and indicator is off if this key is defined as
REVERSE. Machine will jog and indicator is on if this key is
defined as JOG.

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Stop/reset key
Machine stops if press it while run/stop is controlled by keyboard.
Its efficiency range is defined via function no [F4.03]. Inverter
resets if press it in fault state (no reset if fault is not solved).
Keyboard
potentiometer
Can be used as input channel for given frequency, upper
frequency limit, given torque, given PID or PID feedback setting.
●
Indicator Light Meanings
Name State Meaning
Unit
indicator
light
Hz Spark Digital display given frequency.
Hz On Digital display output frequency.
A On Digital display actual output current.
V On Digital display input voltage.
V Spark Digital display output voltage.
S On Time unit is second.
S Spark Time unit is ms, min, or h.
RPM On Digital display motor speed.
% Spark Digital display given PID.
% On Digital display PID feedback.
State
indicator
light
FWD On Inverter is forward rotating.
FWD Spark Inverter is reverse rotating.
FWD Off Inverter stops.
Function
indicator
light
REV/JOG On Jog.
REV/JOG Off Reverse.
●
Parameter Initialization
Setting F0.19 = 1 to complete the initialization of parameters. Specific operations as follows:

SI30 Solar Pump Inverter Manual
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●
Core Control Mode Selection
Here by setting F0.00 = 0 (VC without PG) as an example to introduce,
●
Motor Parameter Setting
According to the motor nameplate [F5.02] (Motor rated power), [F5.03] (motor rated frequency), [F5.04]
(motor rated speed), [F5.05] (motor rated Voltage).Other motor parameters can be obtained through
self-learning of the inverter, the specific methods of operation are as follows:

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3.2 GPRS-D module and APP application (optional)
●GPRS-D module appearance and wiring diagram
●APP main interface and function introduction
VEICHI: Company LOG &Chinese/ English switch
Version: Current APP version
Digital tube: current value display area
A zone: current numeric unit display area
ID: GPRS ID of current connection
Left drop-down box: FX parameter selection area
Middle Dropdown box: XX function code selection
area
PRG: backup function, temporarily unused
Text box: English explain area for current code
FWD: Forward running key
SET: Numeric settings key
STOP: Stop key
RESET: Fault reset key
READ: Backup, temporarily unset
Scan QR code: Scan area of QR code

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3.3 Panel button (standard configuration)
It is able to complete start /stop operation on inverter by pressing [Start/Stop] key in the cover panel only
when F0.02=0. Pressing the key to start it when it is in stop status. While it is in running status, press the
key to stop it. And user can also press the key to reset it when it is in fault status. The “Power” indicator
will be on once power on and “Run” indicator will be on when inverter is running. As fault comes, “Fault”
indicator will be always on. While “Fault” indicator is blinking, alarm comes.

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Chapter 4: Fault Diagnosis and Solution
This chapter describes the inverter fault, alerts, and operation of the failure on the inverter, the display
information on inverter and countermeasures. In addition, the poor condition of the drive and motor
failures will be briefly described in this chapter. Tuning guide on commissioning of the drive please refer
this chapter.
4.1 Fault Information and Description in Detail
Keypad
display
Fault
code Fault type Possibility reason Troubleshooting
E.LU2
Under voltage
at runs
●Power voltage too low
● Power grid capacity is
too low or with big
current impact
●DC main contactor
don’t close
●Check input power
● Promote the power
supply system
● Seek support from
factory
E.oU1
Over voltage at
acceleration
●Power voltage
fluctuation over limit
●Too start rotating motor
● Check power grid
● Restart until motor is
stop completely, or set
[F1.00] set for 1 or 2
E.oU2
Over voltage
during
deceleration
●Deceleration time too
small
●The driving load too
heavy
●Power voltage
fluctuation over limit
●Prolong deceleration
time
●Reduce the load, or
select bigger capacitor
drive, or connect
braking unit
● Check input power
E.oU3
Overvoltage at
constant speed
●Voltage fluctuate
above limit
●Check input voltage
●Install input reactor
E.oU4
Over voltage at
stop
●Voltage fluctuate
above limit
● Check the input
voltage
● Seek support from
factory
E.oC1
Over current
during
acceleration
●Acceleration time is
too short
●To start rotating motor
●V/F setting not correct
or torque boost setting
too big
●Solar drive capacitor is
too small
●Prolong acceleration
time
●Restart motor when it
on still, or set f1.00 for
1 or 2.
● Reset V/f curve or
torque boost setting
E.oC2
Over current
during
●The deceleration time
is too short.
● Increase the
deceleration time.

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deceleration ● The load or inertia of
load is too large
●Solar drive capacitor is
too small
● Install external
braking resistor or unit
● Select an AC drive of
matching power class.
E.oC3
Over current at
constant speed
●Load sudden change
●The voltage of power
grid is too low.
● Check the load
change
● Check the input
voltage
E.oL1 Motor overload
● V/F curve is improper
or boost torque is too big
●The grid voltage is too
lower
●Motor overload
protection coefficient is
improper
●Load is too big or
motor block load
●General motor runs at
low speed for a long
time
●Adjust V/F curve or
boost torque
● Check grid voltage
●Improper setting of
[F5.06/18] parameters
● Check load condition
or select matching
inverter
●Use variable
frequency motor if
long-term low speed
running is needed.
E.oL2 AC drive
overload
●V/F curve is improper
or boost torque is too big
●ACC. time is too short
●Restart motor which in
counter rotate
●Load is too big
●Select an AC drive of
matching power class.
● increase the
ACC./DEC. time
●Restart motor after
complete stop and set
[F1.00] to 1 or 2
●Adjust V/F curve or
boost torque
E. SC System
abnormal
●Deceleration is too
short
●Short circuit of solar
drive output or phase
output short circuit to
ground
● Module damage
● EMC interface
● Prolong acceleration
time
● To check peripheral
equipment
● Ask to support
● Check the wiring
layout, cable ground
E.oH1
Inverter
over-heat
●Temperature is too
high.
● Air channel is blocked.
● Fan connection parts
is loose.
● Fan is damaged.
● Make the
environment meet the
requirement.
● Clear the air channel.
● Check and reconnect
the wire

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●Temperature detection
circuit fault。
● Change the same
new fan.
● Seek support from
factory.
E.oH2
Rectifier
over-heat
●Temperature is too
high.
● Air channel is blocked.
● Fan connection part is
loose.
● Fan is damaged.
● Temperature detection
circuit fault
●Make the environment
meeting the
requirement.
● Clear the air channel.
● Check and reconnect
the wire.
● Change the same
new fan.
● Seek support from
factory.
E.TE1
Motor static
detection fault
● Detection overtime
●Start static detection
while motor is running.
● Capacitance
difference is too big
between motor and
inverter.
●Motor parameter
setting mistake.
● Check motor
connection wire.
● Detect after motor
stopping totally.
● Change inverter
model.
● Reset parameter
according to
nameplate.
E.TE2
Motor rotation
detection fault
●Detect while motor is
running.
● Detect with load.
● Detection overtime
●Capacitance difference
is too big between motor
and inverter.
●Motor parameter
setting mistake.
● Detect after motor
stop totally.
● Re-detect without
load.
● Check motor
connection wire.
● Change inverter
model.
● Reset parameter
according to
nameplate.
E.EEP
Memory fault
●Electromagnetic
disturb in memory
period.
● EEPROM damage.
● Resume load and
save.
● Seek support from
factory.
LIFE Reserved
E.ILF Input phase
loss
●3-phase input power
open phase.
●Check 3-phase power
supply and the phase.
●Check 3-phase power

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supply wiring.
E.oLF Output phase
loss
●3-phase output power
open phase
● Check 3-phase
output voltage and
current.
● Check wiring.
E.Gnd
Output earth
terminal short
circuit.
●Check wiring and
insulation. ●Output earth
E.HAL
Current
detection fault
● Detect circuit fault.
● Phase imbalance
●Seek support from
factory
● Check motor and
wiring.
E.PAn
Keyboard
connect fault
● Keyboard wire fault.
●Keyboard component
damage.
● Check keyboard wire.
●Seek support from
factory.
Rs485
comm
unicati
on
fault
Unsuitable
baud rate
setting.
Communication
wire breaks.
Communication
format does not
match upper
machine.
●Set suitable baud rate
setting.
●Check communication
wire.
●Make sure right
communication format.
●RS485communication
fault
E.CPE
Parameter copy
fault
●Parameter copy
communication is fault.
●Copy keyboard does
not match the inverter.
● Check wire.
●Select the specified
external keyboard
model.

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Chapter 5 Parameters List
“●”：Stands for parameters can modify during running
“〇”：Stands for parameters can’t modify during running
“×”：Stands for parameter read only, can’t modify
“–”：Stands for factory parameters, only for factory
※
“ ”：Stands for relative with AC drive models
★ Basic Function Parameter
Funct
ion
code
Function name Setting range and definition Default
setting
prop
erty
Comm.
Add
F0.00
Control mode
1
：
AM linear VF control without PG
6：Voltage vector control without PG
for PMSM
1 〇 0x000
F0.02
Running control mode
0
：
Key board control
1
：
Terminal control 0 〇 0x002
F0.03
Main frequency source
X reference
0
：
digital reference of keyboard
1：Potentiometer of key board
8
：
PID control reference
0 〇 0x003
F0.08
Digital frequency
reference 0.00～maximum frequency 50.00Hz
● 0x008
F0.09
Maximum frequency 0.00
～
320.00Hz 50.00Hz
〇
0x009
F0.11 Upper limit frequency Lower limit frequency
～
Maximum
frequency 50.00Hz
● 0x00B
F0.12
Lower limit frequency
0.00~Upper limit frequency 0.00Hz ● 0x00C
F0.14
Acceleration time 1 0.01～650.00s model
set ● 0x00E
F0.15
Deceleration time 1 0.01～650.00s model
set ● 0x00F
F0.16
Rotation direction
0
：
consistent
1：Runs in reverse
2
：
Forbidden reverse
0 ● 0x010
F0.17
Carrier frequency 0.6～15.0kHz model
set ● 0x011
F0.19
Factory setting
0
：
No operation
1：Restore to default(motor
parameters don’t restore)
2：Clear fault record
3：Restore to default(motor
parameters restore)
0 〇 0x013