Magnetek IMPULSE G+ Mini Technical Manual page 138

Fault
LF
An open phase occurred at the VFD output.
Output Phase Loss
LL1
Lower Limit 1—SLOW DOWN Indicator. Lower
(flashing)
Limit 1—SLOW DOWN is input (switch status is
Lower Limit 1 Err
changed).
LL2
Lower Limit 2—STOP Indicator. Lower Limit
(flashing)
2—STOP is input (switch status is changed).
Lower Limit 2 Err
MNT
Maintenance Required Alert. Running time has
exceeded C12.05
Maintenance Reqd
oC
Over Current Fault. Output current exceeds
200% of VFD rated output current.
Over Current
oH
Overheat Pre-Alarm. Heatsink is overheating.
(flashing)
The temperature of the VFD's heatsink
Heatsnk Over temp
exceeded the setting in L08.02.
oH1
Overheat Fault. There are two situations that
result in an overheat fault. The first occurs when
Heatsink MaxTemp
the measured heat sink exceeds 105°C. The
second is a result of a fault in the internal 24VDC
cooling fan.
oH2
Overheat Alarm. Signal is input by external
(flashing)
terminal. H01.XX=39
Overheat 2
oH3
Motor Overheating 1. Thermistor analog input
detected motor overheating. See L01.03
Motor Overheat 1
oH4
Motor Overheating 2. Thermistor analog input
detected motor overheating. See L01.04
Motor Overheat 2
oL1
Motor Overload Fault. VFD output exceeded
the motor overload level.
Motor Overloaded
oL2
VFD Overload Fault. VFD output exceeded the
VFD overload level.
VFD Overloaded
oL8
Klixon Circuit Alarm. Input by MFDI H01.xx =
56 or 57
Klixon
oPE01
kVA Setting Fault. VFD kVA setting range is
incorrect.
kVA Selection
oPE02
Parameter Range Setting Error. Parameter
settings are set outside the parameter range.
Fault or Indicator Name/Description Corrective Action
1. Check for broken wires in output cable.
2. Check for open winding in the motor.
3. Check for loose terminals.
1. May not require corrective action.
2. Check the position of the Limit Switch.
3. Check the condition of the Limit Switch.
4. Check the conditions of/for input terminal
H01.XX (U01.10).
1. May not require corrective action.
2. Check the position of the Limit Switch.
3. Check the condition of the Limit Switch.
4. Check the conditions of/for input terminal
H01.XX (U01.10).
1. Reset timer by MFDI H01.xx = 5A or depress
Mode/Service key three times and enter within 2
seconds.
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.
1. The VFD cooling fan has stopped.
2. Reduce the ambient temperature.
1. Ensure that the heat sink cooling fans are func-
tioning.
2. Ensure that the heat sink is free from dirt and
debris.
3. Ensure that the VFD's ambient temperature is
within specification.
4. Replace the 24VDC fan.
5. Replace the heat sink thermistor(s).
1. Check the motor rated current value, E02.01.
2. Increase cycle time or reduce the load.
1. Ensure VFD is programmed with proper motor
full load Amps (E02.01).
2. Reduce the load.
1. Reduce the load.
2. Extend the acceleration time.
1. Check motor for overtemp.
2. Check Klixon circuit.
1. Check O02.04 for proper kVA.
1. Press enter to view parameter.
2. Change parameter to appropriate setting.
IMPULSE
®
•G+ Mini Technical Manual
November 2020
Page 138