Rockwell Automation 1336R REGEN LINE REG - Manual (Page 94)

4–2 Troubleshooting
Troubleshooting 1336 REGEN Fault and Code Number
Fault & Code No.
Status
Indicates Action
Bus Over Volt HW
F 1
On 1 Flash 1 Flash Flashing Bus voltage has exceeded 130% of
the rated DC bus voltage —
— 537VDC for a 380VAC input.
— 650VDC for a 460VAC input. 1. Reduce the braking current limit
of the connected AC drive.
2. Reduce regeneration demand
on the connected AC drive by
reducing braking time.
3. Reset and re-enable the
Converter.
IOC HW
F 2
On 1 Flash 2 Flashes Flashing Current has exceeded 198% of the
rated converter current. 1. Reduce the current limit of the
connected AC drive.
2. Check AC line fuses.
3. Reset and re-enable the
Converter.
4. If problem persists, replace the
Converter Control Board. If
problem reoccurs, check
Converter IGBT devices.
Bus Over Volt SW
F 4
On 2 Flashes 1 Flash Flashing Bus voltage has exceeded that set
by P16 - [BOV SW Trip]. 1. Check the DC bus overvoltage
trip level set in P16.
2. Reduce regeneration demand
on the drive by reducing braking
time.
3. Ensure that the 1336 REGEN
Package is correctly sized for
the application.
IOC SW
F 5
On 2 Flashes 2 Flashes Flashing 1336 REGEN Converter input
current has exceeded that set by
P14 - [IOC SW Trip]. 1. Check the instantaneous
overcurrent trip level set by P14.
2. Reduce the Converter’s current
limits.
3. Ensure that the 1336 REGEN
Package is correctly sized for
the application.
PLL Fault
F 6
On 2 Flashes 3 Flashes Flashing A phase locked loop error has
exceeded the software trip point set
by P22 - [PLLReg Err Trip]. This
can occur for several reasons.
1. The utility voltage is corrupted or
unbalanced.
2. One of the line voltage feedback
inputs is missing.
1. Ensure that P22 - [PLLReg Err
Trip] is set correctly.
2. Verify that the utility’s voltage is
within the specifications listed in
Appendix B.
3. Check voltage feedback inputs
at the 1336 REGEN Precharge
Unit’s input contactor.
IT Fault
F 7
On 2 Flashes 4 Flashes Flashing Current has exceeded 150% of
rated line current for (1) minute or
the equivalent IT value (current
×
time).
Reduce Converter loading.
DS1
FAULT
DS2
ENABLE
DS3
STATUS
DS4
COM