Chapter 5
Chapter 5 – Troubleshooting
In general, the first step to troubleshooting should be to inspect the status LEDs on the SJ-EN board, in addition
to the inverter operator/keypad display. These will give valuable clues to the nature of the problem.
In addition, the inverter operator/keypad will provide diagnostic information for certain types of errors. Error
codes for the option boards will have the format of:
E6X.X for a board installed in option slot 1, or E7X.X for a board installed in option slot 2. The number to the right of the decimal point indicates the drive status at the time of trip, as follows:
deceleration
EXX.3 At constant
speed EXX.4 During
acceleration EXX.5 f0 Stop
EXX.6 At starting EXX.7 During DC injection
braking EXX.8 During overload
restriction
The digit immediately to the left of the decimal point has the following meaning:
Code Trip Name Cause Check Remedy
Defective
connection Connectors (plugs
& jacks), cable
Replace or repair;
press STOP/RESET
on inverter keypad
PC not powered up
or not connected to
inverter
That PC is powered
on and connected Press STOP/RESET
on inverter keypad
EX0.X Ethernet Communication
Error
Network
configuration error
Verify proper
Ethernet setup of
SJ-EN and master
device
Reconfigure
incorrect settings.
Option board ajar or
loose
Verify board is
properly seated in
connector
Remove and reseat
board
Board lockup Check status LEDs Press STOP/RESET
key on inverter or
cycle power
EX9.X Internal Communication
Error (between SJ-EN and
inverter)
Board defective Check status LEDs Replace SJ-EN
TTTT Inverter Mismatch
(blinking display as shown)
Inverter firmware
version not
compatible with
SJ-EN option board
Inverter
Manufacturing
Number for version
(see Page 7)
Replace Inverter
with later version