Adjustable Speed Drive Installation and Operation Manual

254 H9 ASD Installation and Operation Manual
OL1
ASD Overload
Acceleration time is too short.
DC Injection current is too high.
Improper V/f setting.
Motor running during restart.
ASD or the motor is improperly matched to the application.
OL2
Motor Overload
Improper V/f setting.
Motor is locked.
Continuous operation at low speed.
Load requirement exceeds ability of the motor.
Startup frequency setting adjustment required.
OLR
Dynamic Braking
Resistor Overload
Deceleration time is too short.
DBR setting adjustment required.
Overvoltage Stall setting adjustment required.
OP1 Overvoltage During
Acceleration
Motor running during restart.
OP2
Overvoltage During
Deceleration
Deceleration time is too short.
DBR value is too high.
DBR required (DBR setup required).
Stall protection is disabled.
3-phase input voltage is out of specification.
Input reactance required.
OP3
Overvoltage During
Run
Load fluctuations.
3-Phase input voltage out of specification.
DBR required (DBR setup required).
OT
Overtorque
A torque requirement by the load in excess of the setting of F616 or F617 for
a time longer than the setting of F618.
The ASD is improperly matched to the application.
The load is obstructed.
SOUT
Step-Out
(for PM Motor Only)
Motor shaft is locked.
Output phase is open.
Operating a reciprocating load.
UP1
Main Power
Undervoltage
Input 3-phase voltage is too low.
Momentary power failure longer than the time setting of F628.
UP2
Control Power
Undervoltage
This fault is caused by an undervoltage condition at the 5, 15, or the 24 VDC
supply.
3-phase input voltage low.
LED Display LCD Display Possible Causes