TOPTEK TOPVERT E1 Series - Error Message and Troubleshooting; Problems and Solutions

TOPVERT G1/H1/P1 Series
E-32
ERROR MESSAGE AND TROUBLESHOOTING
The drive has a comprehensive fault diagnostic system that includes various alarms and fault
messages such as over-voltage, low-voltage and over-current….etc. Once a fault is detected, the
corresponding protective functions will be activated, and the drive will stop the output and the motor
will then coast to stop. The following faults are displayed as shown on the drive digital keypad panel.
Once the fault occurred, eliminate it first, and wait for 5 seconds (oC,GF,SC are 60 seconds) then
execute RESET action to reactivate the operation.
User may either by depress RESET key on the keypad or apply a external reset signal from Mix to
execute RESET action.
Problems and Solutions
Fault symbol
Fault descriptions
(Name) {Error code}
Treatments
Over- current
(oC) {01}
The drive detects an
abnormal increase in output
current.
 Check the wiring connections between the drive and
motor for possible short circuits.
 Increase the Acceleration time (Pr1-11, Pr1-12)

Check for possible excessive loading conditions at the
motor.
 Replace the drive with the next higher power model
 Wait for 60 seconds then execute RESET action to
reactivate the operation.
Over-voltage on DC-Bus
(oU) {02}
The drive detects that the DC
bus voltage has exceeded its
maximum allowable value.
115/230 V class: about 400V
460 V class: about 800V
575 V class: about 1040V
 Check whether the input voltage falls within the rated
drive input voltage range.
 Check for possible voltage transients.
 If DC Bus over-voltage due to regenerative voltage,
please increase the Deceleration time or add an brake
unit and brake resistor (optional)
Over-voltage on DC-Bus
during deceleration
(oUd) {37}
The drive detects that the DC
bus voltage has exceeded its
maximum allowable value
while in deceleration.
115/230 V class: about 400V
460 V class: about 800V
575 V class: about 1040V
 Check whether the input voltage falls within the rated
drive input voltage range.
 If DC Bus over-voltage due to regenerative voltage,
please increase the Deceleration time or add an brake
unit and brake resistor (optional)
 Check whether the required braking power is within
the specified limits.
Ground fault (GF) {03}:
When (one of) the output
terminal(s) is grounded, short
circuit current is more than
50% of drive rated current,
the drive power module may
be damaged.
NOTE: The Ground fault
protection is provided for
drive protection, not for
protection of the user..
 Check the wiring connections between the drive and
motor for possible short circuits, also to ground
 Check whether the IGBT power module is damaged.
 Check for possible poor insulation at the output line
 Wait for 60 seconds then execute RESET action to
reactivate the operation.