User guide

Faults CME 2 User Guide
88 Copley Controls
9.1: Fault Configuration Parameters
Each of the following faults can be latched by selecting it on the Fault Configuration
screen. For more information on latching, see Fault Latching Notes (p. 89). For details on
limits and ranges, see the amplifier documentation.
Note: The list of faults may vary with amplifier model.
Fault Description
Fault Occurs When…
Fault is Corrected When…
*Amp Over
Temperature
Amplifier's internal temperature
exceeds specified temperature.
Amplifier’s internal temperature falls
below specified temperature.
Motor Phasing Error
Encoder-based phase angle does not
agree with Hall switch states. This
fault can occur only with brushless
motors set up using sinusoidal
commutation. It does not occur with
resolver feedback or with Halls
correction turned off.
Encoder-based phase angle agrees
with Hall switch states. See
Troubleshoot Manual Phase w/
Encoder and Halls (p. 109).
*Feedback error
Over current condition detected on
output of the internal +5 Vdc supply
used to power the feedback.
Resolver or analog encoder not
connected or levels out of tolerance.
Differential signals from incremental
encoder not connected.
Encoder power returns to specified
voltage range.
Feedback signals stay within
specified levels.
Differential signals connected.
*Motor Over Temp
Motor over-temperature switch
changes state to indicate an over-
temperature condition.
Temperature switch changes back to
normal operating state.
Under Voltage
Bus voltage falls below specified
voltage limit.
Bus voltage returns to specified
voltage range.
Over Voltage
Bus voltage exceeds specified voltage
limit.
Bus voltage returns to specified
voltage range.
*Following Error
User set following error threshold
exceeded.
See Position and Velocity Error Notes
(p. 90).
*Short Circuit Detected
Output to output, output to ground,
internal PWM bridge fault.
Short circuit has been removed.
Command Input Lost
PWM or other command signal not
present.
Command signal restored.
Over Current (Latched)
Output current I
2
T limit has been
exceeded.
Amplifier is reset and re-enabled.
*Latched by default.