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Accelnet Plus Micro Modules User Guide
16-01687 Rev 03
Copley Controls
Page 126 of 139
P
ROTECTION
F
AULTS
O
VERVIEW
Accelnet Plus Micro Modules
detect and respond to a set of conditions regarded as faults, such
as drive over temperature and excessive following error. When any fault occurs, with the
exception of a following error, the drive’s P M output stage is disabled, the fault type is
recorde
d in the drive’s internal error log (which can be viewed with CME)
. On EZ boards the
drive status (AMP) LED changes to indicate a fault condition exists.
A digital output can also be programmed to activate on a fault condition. The Following Error
fault behaves with slight differences, as described in
The drive’s P M output stage can be re
-enabled after the fault condition is corrected and the
drive faults are cleared. The process for clearing faults varies depending on whether the fault
is configured as non-latched or latched. The fault-clearing descriptions below apply to all faults
except for the following error fault, which is described in
C
LEARING
N
ON
-L
ATCHED
F
AULTS
The drive clears a non-latched fault, without operator intervention, when the fault condition
is corrected.
DANGER
Risk of unexpected motion with non-latched faults.
After the cause of a non-latched fault is corrected, the drive re-enables the PWM output stage
without operator intervention. In this case, motion may re-start unexpectedly. Configure
faults as latched unless a specific situation calls for non-latched behavior. When using non-
latched faults, be sure to safeguard against unexpected motion.
Failure to heed this warning can cause equipment damage, injury,
or death.
!