Fault Codes - Control Techniques Epsilon EP-I Reference Manual

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

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
110
Status
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
Flash Invalid
Drive Overtemp
(Epsilon drive only)
Power Up Test
NVM Invalid
Invalid Configuration
Power Module
High DC Bus
Low DC Bus
Encoder State
Description
Action to Reset Bridge Disabled
Reprogram the Flash Yes
Allow Drive to Cool down,
Cycle Power or Cycle Yes
Logic Power
Cycle Power or Cycle
Yes
Logic Power
Reset Button or Input Line Yes
Reset Button or Input Line Yes
Reset Button or Input Line
Yes
Cycle Logic Power (MDS)
Reset Button or Input Line Yes
Reset Button or Input Line Yes
Cycle Power or Cycle
Yes
Logic Power