Toshiba H9 operation manual OP1

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

254 H9 ASD Installation and Operation Manual