Vitronics Soltec mySelective 6748 - Page 162

TROUBLE SHOOTING
4 CHAPTER 3
Warning
Does not
output fault.
Auto-
matically
recover
after the
fault
eliminated
Inverter output current exceeds
overtorque detection level (n098)
Decrease load, increase accel/decel time
SER (sequence error)
Inverter Received LOCAL/REMOTE
selection command signal, or
communication/control circuit selection
command signal during operation
Check external circuit (sequence)
BB (external base blocked)
Inverter stops output upon receiving an
external base block signal. (note:
Resetting external base block signals
restarts operation
Check external circuit (sequence)
EF (FWD and REV command
simultaneous input)
FWD command and REV command fro
control circuit terminal are simultaneously
“Closed”. When command is “Closed”
for 500ms and more, inverter stops
operation by setting stopping method
selection (n005)
Check external circuit (sequence)
STP (Operator function stop)
STOP/RESET key is pressed during
running by FWD or REV command from
control circuit terminal or
communication. In this case inverter stops
operation by setting of stopping method
selection (n005) STP (emergency stop).
AT receiving emergency stop alarm signal,
inverter stops operation by setting of
stopping method selection (n005)
• Open FWD or REV command from
control circuit terminal
• Check external circuit (sequence)
FAN (Cooling fan fault)
Cooling fan is locked
Check the followings:
• Cooling fan
• Power supply connection of cooling
fan
CE (MEMOBUS communication fault)
communication data are not received
normally
Check communication devices and
communication signals
ALARM DISPLAY
INVERTER
STATUS
EXPLANATION CAUSES AND
CORRECTIVE ACTIONS
DIGITAL
OPERATOR
RUN
(GREEN)
ALARM
(RED)
BLINKING
BLINKING
BLINKING
OR
BLINKING
BLINKING
BLINKING
BLINKING