Rockwell Automation 1336S Plus FRN 1.xx-5.xx User Manual
Page 134
6–2
Troubleshooting
Table 6.A
1336 PLUS Fault Descriptions
Name & Fault #
Description
Action
Adptr Freq Err
65
The SCANport adapter that
was the selected frequency
reference sent a frequency
greater than 32767 to the drive.
Correct the problem that is causing
the SCANport adapter to send the
illegal frequency reference to the
drive.
Auxiliary Fault
02
The auxiliary input interlock is
open.
If Control Interface option is
installed, check connections at
TB3-24. If option is not installed,
set [Input Mode] to “1.”
BGND 10ms Over
51
Microprocessor loop fault.
Occurs if the 10ms background
task hasn’t been run in 15 ms.
Replace Main Control Board or
complete drive as required.
Blwn Fuse Flt
58
If the difference between the
commanded voltage and the
measured voltage is greater
than 1/8 of rated voltage for 0.5
seconds, then a fault will be
issued indicating that the bus
fuse in 30 kW (40 HP) and up
drives has blown.
Locate cause, replace fuse.
Diag C Lim Flt
36
The drive output current has
exceeded the hardware current
limit and the [Cur Lim Trip En]
parameter was enabled.
Check programming of [Cur Lim
Trip En] parameter. Check for
excess load, improper DC boost
setting, DC brake volts set too high
or other causes of excess current.
Drive Fault Reset
22
Power-up has been attempted
with an Open Stop contact or
Closed Start contact.
Check/verify wiring and contact
operation.
Drive –> HIM
Error 1 – The checksum read
from the EEPROM does not
match the checksum calculated
from the EEPROM data.
Repeat operation. Replace HIM.
EE Init Read
53
1. Gate Drive Bd. replacement
(requires re-initialization).
2. Trouble reading EEPROM
during initialization.
1. Reset to factory defaults & cycle
input power.
2. Check all connections to Power/
Driver Board. Replace board or
complete drive as needed.
EE Init Value
54
Stored parameter value out of
range on initialization.
1. Reset to factory defaults & cycle
input power.
2. Check all connections to the
Power/Driver Bd. Replace the
board or complete drive as
needed.
EEprom Checksum
66
The checksum read from the
EEPROM does not match the
checksum calculated from the
EEPROM data.
1. Reset to factory defaults & cycle
input power.
2. Check all wire and cable con-
nections to the Power Driver
Board. Replace Power Driver
Board or complete drive as
required.
EEprom Fault
32
EEPROM is being programmed
and will not write a new value.
Check all wire and cable connec-
tions to the Main Control Board.
Replace Main Control Board or
complete drive as required.
FGND 10ms Over
52
Microprocessor loop fault.
Occurs if a 10ms interrupt is
pending before the current
interrupt is complete.
Replace Main Control Board or
complete drive as required.