Rockwell Automation 1336 8A-48A Fiber Industry - Manual (Page 116)

6–4 Troubleshooting
Name & Fault # Action Description
Motor Stall Fault
06 Current remained over 150%
of [Rated Amps] for more than
4 seconds. If the motor is drawing excessive
current (over 150%), the motor
load is excessive and will not
allow the drive to accelerate to set
speed. A longer accel time or a
reduced load may be required.
Neg Slope Fault
35 Drive software detected a
portion of the volts/hertz curve
with a negative slope. Check drive programming.
1. [Base Voltage] parameter must
be greater than [Start Boost].
2. If the [DC Boost Select] param-
eter is set to “Full Custom,”
[Base Voltage] must be greater
than [Break Voltage] and
[Break Voltage] must be great-
er than [Start Boost].
Open Pot Fault
09 An external pot is connected
and the common side of the
pot is open. The drive
generates this fault when the
voltage between TB2-2 and
TB2-3 exceeds 3.9V DC. Check the external potentiometer
circuit at TB2, terminals 1, 2 and 3
for an open circuit.
Op Error Fault
11 A SCANport device requests a
Read or Write of a data type
not supported. This will also
occur if:
1. [Motor Type] is set to “Sync
PM” and [Stop Mode Used]
is set to “DC Brake”, or
2. [Motor Type] is set to “Sync
Reluc” or “Sync PM” and
[Speed Control] is set to
“Slip Comp”.
Check programming.
Overcurrent Flt
12 Overcurrent is detected in
instantaneous overcurrent trip
circuit. Check for a short circuit at the
drive output or excessive load
conditions at the motor.
Overload Fault
07 Internal electronic overload
trip. An excessive motor load exists. It
must be reduced such that drive
output current does not exceed
the current set by the [Overload
Amps] parameter.
Overtemp Fault
08 Heat sink temperature
exceeds a predefined value of
90
°
C (195
°
F).
Check for blocked or dirty heat
sink fins. Check that the ambient
temperature has not exceeded
40
°
C (104
°
F).
Overvolt Fault
05 DC bus voltage exceeded
maximum value. Monitor the AC line for high line
voltage or transient conditions.
Bus overvoltage can also be
caused by motor regeneration.
Extend the decel time or install
dynamic brake option.
Phase U Fault
38 A phase to ground fault has
been detected between the
drive and motor in this phase. Check the wiring between the
drive and motor. Check motor for
grounded phase.
Phase V Fault
39 A phase to ground fault has
been detected between the
drive and motor in this phase. Check the wiring between the
drive and motor. Check motor for
grounded phase.
Phase W Fault
40 A phase to ground fault has
been detected between the
drive and motor in this phase. Check the wiring between the
drive and motor. Check motor for
grounded phase.