INVT GD170-045-4-PV User Manual

Goodrive170-PV Series Solar Pump Inverter Fault diagnosis and solution
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7 Fault diagnosis and solution
Do as follows if the inverter encounters a fault:
1. Check whether there is any exception on the keypad. If yes, contact the local INVT
office.
2. If no, check function group P07 to view the fault record parameters and understand
the actual condition.
3. See the following table for a detailed solution and check for exceptions.
4. Rectify the fault or ask for help.
5. Ensure the fault has been rectified, perform fault reset, and run the inverter again.
Fault
code
Fault type
Possible cause
Solution
OUt1
Inverter unit
U-phase protection
 Acceleration is too fast.
 IGBT module is
damaged.
 Misacts are caused by
interference.
 Drive wires are poorly
connected.
 To-ground short circuit
occurs.
 Increase ACC time.
 Replace the power unit.
 Check drive wires.
 Check whether there is
strong interference
surrounding the peripheral
device.
OUt2
Inverter unit
V-phase protection
OUt3
Inverter unit
W-phase protection
OV1
Overvoltage during
acceleration
 The input voltage is
abnormal.
 There is large energy
feedback.
 No braking components.
 Dynamic brake is not
enabled.
 Check the input power.
 Check whether the loaded
DEC time is too short or
the inverter starts when the
motor is rotating.
 Install the braking
components.
 Check the setting of related
function codes.
OV2
Overvoltage during
deceleration
OV3
Overvoltage during
constant speed
running
OC1
Overcurrent during
acceleration
 Acceleration or
deceleration is too fast.
 The voltage of the grid is
too low.
 The power of the inverter
is too low.
 The load transients or is
abnormal.
 Increase the ACC time.
 Check the input power.
 Select the inverter with
larger power.
 Check whether there is
short circuit (to-ground or
inter-wire) in the load or the
rotation is not smooth.
OC2
Overcurrent during
deceleration
OC3
Overcurrent during
constant speed
running

INVT GD170-045-4-PV Specifications

General

Brand	INVT
Model	GD170-045-4-PV
Category	Inverter
Language	English