Rockwell Automation 1398-PDM-xxx ULTRA Plus Series Positioning Drive Module - Manual (Page 134)

Publication 1398-5.1 — January 2000
5-6 Check for Problems in the System
33 Iavg Fault The average current output of the GML exceeded safe
levels for the motor or GML. Check for correct
connection of the motor encoder to the GML or of the
motor leads to the GML. Other possible causes are
motor stall or end of travel condition, excessive duty
cycle, or no DC bus voltage. This can also occur if the
drive is enabled and there is power supplied to the L1
and L2/N AC AUX inputs, but not to the L1 and L2/N
AC main inputs (this provides logic voltage, but no DC
bus voltage).
34 Excessive FE The following error has exceeded the Following Error
Limit for a time greater than the Following Error Time.
Possible causes are loss of encoder feedback, low
gain settings, a commanded velocity or acceleration
that exceeds system capabilities, or entries for
Following Error Limit and/or Following Error Time that
are beyond system capabilities.
35 Excessive Speed Commanded velocity of a move exceeded the
Overspeed value set under Velocity / Acceleration in
the Parameter menu.
36 Cam Profile Overflow The target follower position in a cam profile could not
be calculated.
37 POS Track Overflow The target follower position with tracking mode active
could not be calculated
38 Serial Port #2 Busy A PRINT or READ statement was attempted to serial
port #2 while the system was reserving the port for
other functions.
39 Drive Not Ready The Ready to Run signal from the drive indicates a
fault in the drive.
40 Motor Overtemperature The temperature sensor in the motor windings
indicated that the motor temperature has exceeded
the rating. Check for mechanical binding, undersized
motor, or duty cycle too high.
41 Power Module Fault
or
Heat Sink
Overtemperature This fault typically indicates that the amplifier is trying
to supply currents above its rating to the motor. Check
for mechanical binding, excessive duty cycle, or faulty
motor wiring.
(1398-PDM-10, 20, 30, 75, and 150B) The power
module has detected excessive internal temperature
or excessive current to the motor. On earlier power
modules, this fault indicates the heat sink temperature
has exceeded the rated temperature.
(1398-PDM-25, 50, 100, and 100) The heat sink
temperature has exceeded the rating.
42 Bus Undervoltage
or
Logic Supply Fault The DC Bus voltage is too low, or power supplies for
the amplifier circuitry were below the nominal output
voltage. This indicates a problem in the GML internal
power supply.
(Continued)
No. Error Messages Description