Omron Q2A Series Technical Manual page 264

7.4 Faults
Code Name
oFC50 to Option Card Error Occurred at
oFC55 Option Port CN5-C
Note:
Do a Fault Reset to clear the fault.
Code Name
oH Heatsink Overheat
Note:
• The drive detects this fault if the heatsink temperature of the drive is more than the value set in L8-02.
• Do a Fault Reset to clear the fault.
• If the drive detects this fault, it will operate the motor as specified by the Stopping Method set in L8-03 [Overheat Pre-Alarm Selection].
Code Name
oH1 Heatsink Overheat
Note:
• The drive detects this fault if the heatsink temperature of the drive is more than the oH1 detection level. o2-04 [Drive KVA Selection] determines the oH1 detection level.
• Do a Fault Reset to clear the fault.
• U/OV,OH,GF A-Reset Select disables the Auto Restart function.
Code Name
oH3 Motor Overheat (PTC Input)
Note:
• The drive detects this fault if the motor overheat signal that was entered to an analog input terminal A3 is more than the alarm detection level when H3-06 = 16 [AI3
Function Selection = Mot PTC Input].
• Do a Fault Reset to clear the fault.
• If the drive detects this fault, it will operate the motor as specified by the Stopping Method set in L1-03 [Motor oH AL Reaction Select].
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Causes
A fault occurred in the option card.
Causes
The ambient temperature is high and the heatsink
temperature of the drive is more than the value set
in L8-02 [Overheat Alm Level].
The load is too heavy.
The internal cooling fan of the drive stopped.
Causes
The ambient temperature is high and the heatsink
temperature of the drive is more than the value set
in L8-02 [Overheat Alm Level].
The load is too heavy.
Causes
The thermistor wiring that detects motor
temperature is defective.
A fault occurred on the machine.
Example: The machine is locked.
The motor has overheated.
Possible Solutions
Refer to the manual for the PG-RT3 or PG-F3 option card.
Possible Solutions
• Measure the ambient temperature.
• Increase the airflow in the control panel.
• Install a cooling device (cooling fan or air conditioner) to
lower the ambient temperature.
• Remove objects near the drive that are producing too much
heat.
• Measure the output current.
• Decrease the load.
• Decrease the value set in C6-02 [Carrier Frequency
Selection].
1. Use the procedure in this manual to replace cooling fan.
2. Set o4-03 = 0 [Fan.Oper Setting = 0 h].
Possible Solutions
• Measure the ambient temperature.
• Increase the airflow in the control panel.
• Install a cooling device (cooling fan or air conditioner) to
lower the ambient temperature.
• Remove objects near the drive that are producing too much
heat.
• Measure the output current.
• Decrease the load.
• Decrease the value set in C6-02 [Carrier Frequency
Selection].
Possible Solutions
Correct wiring errors.
Examine the machine and remove the cause of the fault
• Check the load level, acceleration/deceleration time, and motor
start/stop frequency (cycle time).
• Decrease the load.
• Increase the values set in Acceleration/Deceleration Times C1-
01 to C1-08.
• Set E2-01 [Mot Rated Current (FLA)] correctly to the value
specified by the motor nameplate.
• Make sure that the motor cooling system is operating correctly,
and repair or replace it if it is damaged.
• Adjust V/f Pattern ParametersE1-04 to E1-10. For motor 2,
adjust E3-04 to E3-10. Decrease the values set in E1-08 [Mid
A Voltage] and E1-10 [Min Output Voltage].
Note:
If the values set in E1-08 and E1-10 are too low, the load
tolerance will decrease when operating the drive in the low
speed range.
SIEPYEUOQ2A01A AC Drive Q2A Technical Manual