Rockwell Automation 1336F PLUS II User Manual - Firmware 1.xxx-6.xxx - Manual (Page 151)

Troubleshooting 7–5
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
pot leads is greater than 3.9V DC. Check the external potentiometer cir-
cuit at TB2 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 Re-
luc” or “Sync PM” and [Speed
Control] is set to “Slip Comp”.
Check programming.
Option Error
14 A slot A analog option board has
been installed in slot B
or
A slot B board has been installed
in slot A Remove or relocate to proper slot.
Overcurrent Flt
12 Overcurrent is detected in instan-
taneous 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 out-
put current does not exceed the cur-
rent set by the [Overload Amps]
parameter.
Overspeed Fault
25 Not functional at time of printing.
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 tempera-
ture has not exceeded 40
° C (104° F).
Check fan.
Overvolt Fault
05 DC bus voltage exceeded maxi-
mum value. Monitor the AC line for high line volt-
age 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.
Poles Calc Flt
50 Generated if the calculated value
of [Motor Poles] is less than 2 or
greater than 32. Check [Motor NP RPM] and [Motor
NP Hertz] programming.
Power Loss Fault
03 DC bus voltage remained below
85% of nominal for longer than
500ms. [Line Loss Fault] parame-
ter is set to “enabled.” Monitor the incoming AC line for low
voltage or line power interruption.
Power Mode Fault
26 The internal power mode variable
received an incorrect value. Check all connections to the Control
Board. Replace the board or com-
plete drive as required.
Name & Fault # Description Action