Allen-Bradley ControlLogix 1756-DMD30, User Manual, Page: 352 / 369

Publication 1756-UM522B-EN-P - February 2003
C-100 1756-DMF30 Specific Information
Interpretting Drive Module
Faults in DriveExecutive
The Fault Words tab of the Fault and Alarm window of DriveExecutive
allows you to view several parameters. These parameters have
individual bits associated with faults or conditions. If the bit is 0, the
fault is not present or the condition is false. If the bit is 1, the fault is
present or the condition is true.
Parameter 323 [Fault Status 1]
This parameter indicates the occurance of exception events that have
been configured as fault conditions. These events are from parameter
320 [Exception Event1]. These bits are latched until they are reset by
setting bit 19 [Clear Fault] of parameter 152 [Applied LogicCmd]. After
turning the Clear Fault bit on, the drive may be re-started after turning
the command bits off and then back on again. If the fault conditions
still exist, the identifying bit in this parameter will immediately be set
again. The fault conditions reported in this register result in turning
off the drive.
Bit Fault Name Fault Description
Bit 7 Slink HW Not Used
Bit 8 Slink Comm A SynchLink communication failure has occurred.
These faults are enumerated in parameter 1229 [SL
Error Status].
Bit 18 DSP Mem Err Flash memory does not match the SRAM memory
Bit 19 DSP Err The drive has failed to complete DSP (VPL) interrupt
tasks in the allotted time.