Emerson 400501-05, Epsilon Eb Digital Servo Drive installation manual Fault Codes

Epsilon Eb Digital Servo Drive Installation Manual

Display Indication

Status

Description

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 status 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 +/- Travel 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

NVM Invalid

Button or Input

Yes

Drive Overtemp

Cool down, Cycle Power

Yes

Power Module

Power

Yes

High DC Bus

Button or Input

Yes

Low DC Bus

Button or Input

Yes

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