Emerson P/N 400518-02 manual Fault Codes, Display Fault Action to Reset Bridge Disabled

Epsilon EP-I Indexing Drive and FM-2 Indexing Module Reference Manual

Display Indication	Status	Description
	Stall Foldback	Drive output current is limited to 80 percent of drive stall current.
	(EN drive only)

Ready to Run

Drive enabled, no Stop input.

Fault Codes

A number of diagnostic and fault detection circuits are incorporated to protect the drive. Some faults, like high DC bus and amplifier or motor over temperature, can be reset with the Reset button on the front of the drive or the Reset input function. Other faults, such as encoder faults, can only be reset by cycling power “Off” (wait until the diagnostics display turns “Off”), then power “On”.

The drive accurately tracks motor position during fault conditions. For example, if there is a “Low DC Bus” fault where the power stage is disabled, the drive will continue to track the motor’s position provided the logic power is not interrupted.

The +/- Limit faults are automatically cleared when the fault condition is removed. The table below lists all the fault codes in priority order from highest to lowest. This means that if two faults are active, only the higher priority fault will be displayed.

Display	Fault	Action to Reset	Bridge Disabled
	Flash Invalid	Reprogram the Flash	Yes
	Drive Overtemp	Allow Drive to Cool down,
		Cycle Power or Cycle	Yes
	(Epsilon drive only)
		Logic Power
	Power Up Test	Cycle Power or Cycle	Yes
		Logic Power
	NVM Invalid	Reset Button or Input Line	Yes
	Invalid Configuration	Reset Button or Input Line	Yes
	Power Module	Reset Button or Input Line	Yes
		Cycle Logic Power (MDS)
	High DC Bus	Reset Button or Input Line	Yes
	Low DC Bus	Reset Button or Input Line	Yes
	Encoder State	Cycle Power or Cycle	Yes
		Logic Power

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