Rockwell Automation 1756-DMF30 ControlLogix Drive Module - Manual (Page 239)

Publication 1756-UM522B-EN-P - February 2003
1756-DMD30 Specific Information B-159
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 169 [Drive I/O Status]
The bits in this parameter indicate the current state of the inputs on
the Resolver & Drive I/O module.
Bit Fault Name Fault Description
Bit 0 Run Perm This bit reflects the status of the run permissive input signal
connected to pin A on the DRIVE I/O connector. When the
signal is present, this bit is set. The run permissive input
signal typically originates from the drive’s coast stop
circuitry and is required to turn on parameter 168 [Drive I/O
Ctrl] bit 1 [M-Cont Out].
Bit 1 M-Cont Fdbk This bit reflects the status of the M-contactor feedback
input signal, which is connected to the AUX_IN1 input on
the Resolver & Drive l/O module.
Bit 2 Aux In 2 This bit reflects the status of 115 VAC auxiliary input 2 on
the Resolver & Drive I/O module. If an inverting fault
breaker is used, this bit is used to reflect the status of the
inverting fault breaker input signal.
Bit 3 Aux In 3 This bit reflects status of 115 VAC auxiliary input 3 on the
Resolver & Drive I/O module. If Power Module air loss is
being monitored, this bit reflects the status of the Power
Module’s air loss signal. An air flow sensor in the Power
Module generates this signal.
Bit 4 Aux In 4 This bit reflects the status of 115 VAC auxiliary input 4 on
the Resolver & Drive l/O module. If the motor’s thermal
switch is being monitored, this bit reflects the status of the
switch’s signal.
Bit 5 Aux In 5 This bit reflects the status of 115 VAC auxiliary input 5 on
the Resolver & Drive l/O module.
Bit 6 Res Gain OK This bit is set when the resolver gain calibration procedure
is completed. This procedure is performed when the value
stored in parameter 2161 [Resolver Gain] equals zero.