PV series Solar Pumping Inverter
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1、Input voltage is high
2、There is an external force
during acceleration dragging
the motor to work
3、Acceleration time is too
short
4、No installation of braking
resistor
1、The voltage adjusted to a
normal range
2、Cancel the external
power or install braking
resistor
3、Prolong the acceleration
time
4、Install braking resistor
1、Input voltage is high
2、There is an external force
during deceleration dragging
the motor to work
3、Deceleration time is too
short
4、No installation of braking
resistor
1、The voltage adjusted to a
normal range
2、Cancel the external
power or install braking
resistor
3、Prolong the deceleration
time
4、Install braking resistor
Constant-speed
Overvoltage
1、Input voltage is too high
2、There is an external force
during running dragging the
motor to work
1、The voltage adjusted to a
normal range
2、Cancel the external
power or install braking
resistor
Bus Under
voltage
protection
1、Momentary power failure
2、The inverter input voltage
3、Bus voltage abnormal
4、Rectifier bridge and buffer
resistance are abnormal
5、Drive board abnormal
6、Control panel abnormal
1、Reset Failure
2、Adjust voltage to normal
range
3、Ask for technical support
4、Ask for technical support
5、Ask for technical support
6、Ask for technical support
1、 1、Inverter output circuit
shorted
2、 2、Acceleration/ Deceleration
time is too short
3、Wirings between motor and
inverter is too long
4、Module Overheating
5、Internal wirings of inverter
loosened
6、Main Board Abnormal
1、 1、Peripheral
troubleshooting
2、Prolong the
acceleration/deceleration
time
3、Install the reactor or
output-filter
4、Check and confirm the
air-channel unblocked, fans
operation normal
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