SJ700
2
Inverter
T
roub
leshooting
and Maintenance
6–5
Monitoring Trip Events, History, & Conditions
Fault Detection
and Clearing
The microprocessor in the inverter detects a
variety of fault conditions and captures the event,
recording it in a history table. The inverter output
turns OFF, or “trips” similar to the way a circuit
breaker trips due to an over-current condition.
Most faults occur when the motor is running (refer
to the diagram to the right). However, the inverter
could have an internal fault and trip in Stop Mode.
In either case, you can clear the fault by pressing
the Stop/Reset key. Additionally, you can clear the
inverter’s cumulative trip history by performing the procedure
“Restoring Factory Default
Settings” on page 6–16
(setting B_84=00 will clear the trip history but leave inverter settings
intact).
Error Status
Codes
The conditions at the time of an error provide important clues to help you understand the cause.
The SJ700
2
inverter displays a “status at trip point” digit to the right of the decimal point for
some error codes. For example,
E07.2
means Error 7 occurred and the inverter status was
condition # “2” when the error occurred.
Run
Stop
Fault
Trip
Fault
RUN
STOP
RESET
STOP
RESET
Status
Codes
Inverter Status
Status
Codes
Inverter Status
---.0
Reset
---.5
Run Command active with 0 Hz
speed reference
---. 1
Stop
---.6
Starting
---.2
Deceleration
---.7
DC braking
---.3
Constant speed
---.8
Overload restriction
---.4
Acceleration
---.9
SON or FOC operation in
progress