Rockwell Automation 1756-DMF30 ControlLogix Drive Module - Manual (Page 240)

Publication 1756-UM522B-EN-P - February 2003
B-160 1756-DMD30 Specific Information
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 7 Res Bal OK This bit is set when the resolver balance calibration
procedure is complete. This procedure is performed when
parameter 168 [Drive I/O Ctrl] bit 6 [Enbl Res Bal] is set and
the motor is turning.
Bit 8 StrobeDetect This bit is set when the external strobe on the motor’s
resolver is detected. Parameter 2136 [Res Strobe Posit]
displays the position of the resolver at the time of the
strobe. Note that this bit is set for only one scan allowing a
strobe to be detected every scan. The Logix task must check
the External Strobe Detected bit each scan to ensure the
validity of the strobe data in Parameter 2136.
Bit 9 Strobe Level This bit is set or reset when the external strobe is detected.
It indicates whether the external strobe level was rising (1)
or falling (0).
Bit Fault Name Fault Description
Bit 0 Abs OverSpd Motor speed has exceed the value in parameter 335 [Abs
OverSpd Lim].
Bit 1 SpdRef Decel The drive has failed to achieve a zero speed condition.
Bit 6 Ctrl EE Mem Not Used
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 10 Mtr OL Trip A Mtr OL Trip exception event has faulted the drive module.
Refer to parameter 371 [Mtr OL Trip Cnfg], parameter 336
[Service Factor], parameter 337 [Mtr I2T Curr Min], and
parameter 338 [Mtr I2T Spd Min].
Bit 11 Mtr OL Pendg A Mtr OL Pendg exception event has faulted the drive
module. Refer to parameter 372 [Mtr OL Pend Cnfg],
parameter 336 [Service Factor], parameter 337 [Mtr I2T Curr
Min], and parameter 338 [Mtr I2T Spd Min].
Bit Fault Name Fault Description