Magnetek IMPULSE G+ Mini, Техническое руководство

Страница: 138 / 182

IMPULSE
®
•G+ Mini Technical Manual
November 2020
Page 138
LF
Output Phase Loss
An open phase occurred at the VFD 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 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).
LL2
(flashing)
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 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).
MNT
Maintenance Reqd
Maintenance Required Alert. Running time has
exceeded C12.05
1. Reset timer by MFDI H01.xx = 5A or depress
Mode/Service key three times and enter within 2
seconds.
oC
Over Current
Over Current Fault. Output current exceeds
200% of VFD 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.
oH
(flashing)
Heatsnk Over temp
Overheat Pre-Alarm. Heatsink is overheating.
The temperature of the VFD’s heatsink
exceeded the setting in L08.02.
1. The VFD cooling fan has stopped.
2. Reduce the ambient temperature.
oH1
Heatsink MaxTemp
Overheat Fault. There are two situations that
result in an overheat fault. The first occurs when
the measured heat sink exceeds 105°C. The
second is a result of a fault in the internal 24VDC
cooling fan.
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).
oH2
(flashing)
Overheat 2
Overheat Alarm. Signal is input by external
terminal. H01.XX=39
oH3
Motor Overheat 1
Motor Overheating 1. Thermistor analog input
detected motor overheating. See L01.03
1. Check the motor rated current value, E02.01.
2. Increase cycle time or reduce the load.
oH4
Motor Overheat 2
Motor Overheating 2. Thermistor analog input
detected motor overheating. See L01.04
oL1
Motor Overloaded
Motor Overload Fault. VFD output exceeded
the motor overload level.
1. Ensure VFD is programmed with proper motor
full load Amps (E02.01).
2. Reduce the load.
oL2
VFD Overloaded
VFD Overload Fault. VFD output exceeded the
VFD overload level.
1. Reduce the load.
2. Extend the acceleration time.
oL8
Klixon
Klixon Circuit Alarm. Input by MFDI H01.xx =
56 or 57
1. Check motor for overtemp.
2. Check Klixon circuit.
oPE01
kVA Selection
kVA Setting Fault. VFD kVA setting range is
incorrect.
1. Check O02.04 for proper kVA.
oPE02
Parameter Range Setting Error. Parameter
settings are set outside the parameter range.
1. Press enter to view parameter.
2. Change parameter to appropriate setting.
Fault Fault or Indicator Name/Description Corrective Action