Table of Contents
Advertisement
Causes and corrective actions
Operation Panel
Indication
Name
Description
Checkpoint
Corrective action
Operation Panel
Indication
Name
Description
Check point
Corrective action
Operation Panel
Indication
Name
Description
Checkpoint
Corrective action
(3) Alarm
When an alarm occurs, the converter continues its operation. You can also output an alarm signal by making parameter
setting.
(Set "98" in any of Pr. 11 to Pr. 16 (output terminal function selection). Refer to page 78)
Operation Panel
Indication
Name
Description
Checkpoint
Corrective action
(4) Fault
When a fault occurs, the converter trips and a fault signal is output. Output of the connected inverter is also shut off.
Operation Panel
Indication
Name
Description
Checkpoint
Corrective action
128
MT
Maintenance signal output
Indicates that the cumulative energization time of the converter has reached a given time.
When the setting of Pr. 35 Maintenance timer alarm output set time is the initial setting (Pr. 35 = "9999"), this
warning does not occur.
Check that the Pr. 34 Maintenance timer setting is larger than Pr. 35 Maintenance timer alarm output set time
setting. (Refer to page 82)
Setting "0" to Pr. 34 Maintenance timer erases the signal.
CP
Parameter copy
Appears when parameters are copied between models with capacities of 55K or lower and 75K or higher.
Resetting of Pr. 50, Pr. 51, Pr. 52, Pr. 53, Pr. 54, Pr. 55, Pr. 56 and Pr. 57 is necessary.
Set the initial value in Pr. 989 Parameter copy alarm release.
SL
Power supply not detected
Appears when the power supply detection ends incompletely at a power failure.
Appears at the power ON of the control circuit when using separate power sources for the control circuit
power source and for the main circuit power source. It is not a fault.
Check the power source and the wiring.
Check the wiring for power source detection.
Perform wiring correctly.
FN
Fan alarm
appears on the operation panel when the cooling fan of the converter trips, when its speed drops, or
when it does not operate as commanded by the Pr. 36 Cooling fan operation selection.
Check the cooling fan for a failure.
Failure of the cooling fan might be the cause. Please contact your sales representative.
E.OC2
Overcurrent trip
Stops the converter operation when the input current exceeds the specified level during the converter
operation.
Check for sudden load change.
Check for output short-circuit.
Check that the wiring is performed correctly.
Check that any power supply failure did not occur.
Keep the load stable.
Check the wiring to make sure that output short circuit does not occur.
Check the wiring.
Check the power supply.
FR-PU07
FR-PU07
FR-PU07
FR-PU07
FR-PU07
MT
CP
SL
FN
Stedy Spd OC
Advertisement
Table of Contents
