Magnetek IMPULSE VG+ Series 3, Инструкция по эксплуатации, Страница: 156 / 183

IMPULSE•VG+ Series 3 Instruction Manual – 07/25/05
6-7
EF6
External
Fault 6
External fault occurs on Terminal S6 external
control circuit 1. Check constant H1-04 for proper
programming.
2. Check the condition of the input terminal S6.
EF7
External
Fault 7
External fault occurs on Terminal S7 external
control circuit. 1. Check constant H1-05 for proper
programming.
2. Check the condition of the input terminal S7.
EF8
External
Fault 8
External fault occurs on Terminal S8 external
control circuit. 1. Check constant H1-06 for proper
programming.
2. Check the condition of the input terminal S8.
ERR
EEPROM
R/W Err
EEPROM Read/Write Fault. EEPROM
internal data did not match when initializing the
parameter.
1. Cycle Power.
2. User initialize (A1-05=1110).
3. Replace Control board.
Fbl
Feedback Loss
PID Feedback Loss. Occurs when PID
Feedback loss is detected by D7-13.
1. Verify drive is programmed to receive the
feedback signal.
GF
Ground Fault
During operation, the inverter sums the currents
of all three motor phases. Ideally, the sum
should always equal zero. If the sum is greater
than 50% of the inverter rated output current, a
GF occurs. 1. Disconnect motor from drive and check it for
shorts using a megger.
2. Ensure that R/C Surge Suppressors are used
across all brake contactor coils to prevent
disturbance by electrical transients.
LC
Load Check Err
Load Check Fault. Load is greater than
specified amount.
1. Reduce Load.
2. Check Load Check sequence set-up. (C5-
XX).
LF
Output Phase Loss
An open phase occurred at the inverter output. 1. Check for broken wires in output cable.
2. Check for open winding in the motor.
3. Check for loose terminals
LL1
(flashing)
Lower Limit 1 Err
Lower Limit 1—SLOW DOWN
Indicator.
Lower Limit 1—SLOW DOWN is
input (switch status is changed).
1. May not require corrective action.
2. Check the Limit Switches position.
3. Check the Limit Switches condition.
LL2
(flasing)
Lower Limit 2 Err
Lower Limit 2—STOP Indicator. Lower
Limit 2—STOP is input (switch status is
changed).
1. May not require corrective action.
2. Check the Limit Switches position.
3. Check the Limit Switches condition.
MNT
Maintenance Reqd
Maintenance Required Alert. Running time
has exceeded C12-05
1. Reset timer by MFI=5A or depress Mode/
Service key three times and enter within 2
seconds.
OC
Over Current
Output current exceeds 200% of inverter rated
output current. 1. Check for a phase-to-phase short in the motor
or wiring using a megger.
2. Extend the acceleration/deceleration time.
3. Check torque limit setting.
4. Please reference troubleshooting encoder
related faults on page 6-12.
OH
(flashing)
Heatsnk Over temp
Overheat Pre-Alarm. Heatsink is overheating.
The temperature of the inverters heatsink
exceeded the setting in L8-02.
1. The inverter cooling fan has stopped.
2. Reduce the ambient temperature.
Fault Code Fault or Indicator Name/Description Corrective Action