Rockwell Automation 1336F PLUS II User Manual - Firmware 1.xxx-6.xxx - Manual (Page 152)

7–6 Troubleshooting
Power Overload
64 The drive rating of 150% for 1
minute has been exceeded. Reduce load.
Precharge Fault
19 The precharge device was open
20ms after the end of a line loss
condition or the bus charging
alarm remains on for 20 seconds
(precharge did not complete). See Chapter 1 for frame definitions.
1. Frames A1, A2, A3 - Check the pre-
charge circuit. Replace the drive.
2. Frame B - Check the precharge cir-
cuit. Replace the Power Driver Bd.
or complete drive as required.
3. All larger frames - Check the pre-
charge circuit. Replace the input
SCRs, SCR Firing Board, Power
Driver Board or complete drive as
needed.
Precharge Open
56 The precharge circuit was com-
manded to close, but was
detected to be open. See page 1–1 for frame definitions.
1. Frames A1, A2, A3 - Check the pre-
charge circuit. Replace the drive.
2. Frame B - Check the precharge cir-
cuit. Replace the Power Driver Bd.
or complete drive as required.
3. All larger frames - Check the pre-
charge circuit. Replace the input
SCRs, SCR Firing Board, Power
Driver Board or complete drive as
needed.
Prm Access Flt
34 A communication error occurred
between the microprocessor and
the serial EEPROM or the DSP. Record the value in [Fault Data], then
reset the fault. If this fault occurs
repeatedly, contact factory.
Reprogram Fault
48 The drive was commanded to
write default values to EEPROM. 1. Clear the fault or cycle power to the
drive.
2. Program the drive parameters as
needed.
Important: If [Input Mode] has been
changed from its original value, power
must be cycled before the new value
will take affect.
ROM or RAM Flt
68 Internal power-up ROM or RAM
tests have not executed properly. Replace Control Board or complete
drive as required.
Serial Fault
10 A SCANport adapter has been
disconnected and the [Logic
Mask] bit for that adapter is set to
“1.” 1. If no adapter was intentionally dis-
connected, check wiring to the
SCANport adapters. Replace wir-
ing, SCANport expander,
SCANport adapters, Main Control
Board or complete drive as
required.
2. If an adapter was intentionally dis-
connected and the [Logic Mask] bit
for that adapter is set to “1”, this
fault will occur. To guard against
this fault occurring, set the [Logic
Mask] bit for the adapter to “0.”
3. Check HIM connection for proper
seating.
Shear Pin Fault
63 Programmed [Current Limit] amps
has been exceeded and [Shear
Pin Fault] is enabled. Check load requirements and [Cur-
rent Limit] setting.
Step Logic Flt
69 1. [SLx Step Jump] is set to “End
Fault.”
2. [Encoder Counts] has reached
the endpoint of
±
32767.
1. Check conditions that caused [SLx
Step Jump] to occur.
2. Zero [Encoder Counts]. Change
[Enc Count Scale].
Name & Fault # Description Action