Toshiba H9 ASD Installation And Operation Manual page 259

LED Screen
OL1
OL2
OLR
OP1
OP2
OP3
OT
SOUT
UP1
UP2
252
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LCD Screen
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.
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.
Dynamic Braking • Deceleration time is too short.
Resistor Overload
• DBR setting adjustment required.
• Over-Voltage Stall setting adjustment required.
Over-Voltage During • Motor running during restart.
Acceleration
Over-Voltage During • Deceleration time is too short.
Deceleration
• 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.
Over-Voltage During • Load fluctuations.
Run
• 3-Phase input voltage out of specification.
• DBR required (DBR setup required).
Over-Torque • A torque requirement by the load in excess of the setting of
a time longer than the setting of F618.
• The ASD is improperly matched to the application.
• The load is obstructed.
Step-Out • Motor shaft is locked.
(for PM Motor Only)
• Output phase is open.
• Operating a reciprocating load.
Main Power • Input 3-phase voltage is too low.
Under-Voltage
• Momentary power failure longer than the time setting of F628.
Control Power • This fault is caused by an under-voltage condition at the 5, 15, or the 24 VDC
Under-Voltage supply.
• 3-phase input voltage low.
Possible Causes
H9 ASD Installation and Operation Manual
F616 or F617 for