Baldor VS1MD instruction manual Fault Descriptions

9.5.3 Fault Descriptions

	Table 9.1 – Fault Descriptions
Fault Code/	Fault	Descriptions
Display
	Overcurrent	The drive diables when the output current is
		detected at a level higher than the inverter rated
		current.
	Ground fault	The drive disables when a ground fault occurs
	current	and the ground fault current is greater than the
		internal setting value of the inverter.
	Inverter	The drive disables its output when the output
	Overload	current of the inverter is greater than the rated
		level.
	Overload trip	The drive disables if the output current of the
		inverter is at 150% of the inverter rated current
		for more than the current limit time (1 min).
	Inverter	The drive disables if the heat sink overheats due
	overheat	to a damaged cooling fan or a blockage in the
		cooling fan by detecting the temperature of the
		heat sink.
	Output Phase	The drive disables its output when one or more
	loss	of the output (U, V, W) phases is open. The drive
		detects the output current to check the output
		phase loss.
	Over voltage	The drive disables its output if the DC bus
		voltage increases above the bus overvoltage
		threshold. This fault can also occur due to a
		surge voltage generated at the input terminals.
	Low voltage	The drive disables its output if the DC bus
		voltage is less than the undervoltage threshold
		because insufficient torque or overheating of the
		motor can occur when the input voltage of the
		drive is too low.
	Electronic	The internal electronic thermal of the drive
	Thermal	determines the motor heat. If the motor is
		overloaded the inverter disables the output. The
		drive cannot protect the motor when controlling a
		motor having more than 4 poles or multiple
		motors.
	Input phase	Drive output is disabled when one of the input
	loss	phases (R, S, T) is open.
	Self-	Displayed when IGBT damage, output phase
	diagnostic	short, output phase ground fault or output phase
	malfunction	open occurs.

Troubleshooting 9-5