8-8
Fault display
Probable cause and remedy
Warning name and Meaning
ser
(flashing)
Sequence error (SER)
A sequence change has been input
while the Inverter is in operation.
Local or remote selection is input while
the Inverter is in operation.
Note
The Inverter coasts to a stop.
•
A sequence error has occurred.
→
Check and adjust the local or remote
selection sequence as multi-function input.
bb
(flashing)
External base block (bb)
The external base block command has
been input.
Note
The Inverter coasts to a stop.
•
The external base block command has been in-
put as multi-function input.
→
Remove the cause of external base block
input.
•
The sequence is incorrect.
→
Check and change the external fault input
sequence including the input timing and NO
or NC contact.
ef
(flashing)
Forward- and reverse-rotation input
(EF)
The forward and reverse commands
are input to the control circuit terminals
simultaneously for 0.5 s or more.
Note
The Inverter stops according to
the method set in n04.
•
A sequence error has occurred.
→
Check and adjust the local or remote
selection sequence.
(flashing)
Emergency stop (STP)
The Digital Operator stops operating.
The STOP/RESET Key on the Digital
Operator is pressed while the Inverter
is operating according to the forward
or reverse command through the
control circuit terminals.
Note
The Inverter stops according to
the method set in n04.
•
The parameter setting was incorrect.
→
Turn off the forward or reverse command
once, check that the n06 parameter setting for
STOP/RESET Key function selection, and
restart the Inverter.
The emergency stop alarm signal is
input as multi-function input.
A multi-function input 1, 2, 3, or 4 set
to 20 or 22 has been used.
Note
The Inverter stops according to
the method set in n04.
•
An emergency stop alarm is input to a multi-func-
tion input.
→
Remove the cause of the fault.
•
The sequence is incorrect.
→
Check and change the external fault input
sequence including the input timing and NO
or NC contact.
fRn
(flashing)
Cooling fan fault (FAN)
The cooling fan has been locked.
•
The cooling fan wiring has a fault.
→
Turn off the Inverter, dismount the fan, and
check and repair the wiring.
•
The cooling fan in not in good condition.
→
Check and remove the foreign material or
dust on the fan.
•
The cooling fan is beyond repair.
→
Replace the fan.
Maintenance Operations
Chapter 8
Summary of Contents for SYSDRIVE 3G3JV-A4002
Page 1: ...USER S MANUAL SYSDRIVE 3G3JV Compact Simplified Inverters Cat No I528 E1 04...
Page 3: ...USER S MANUAL Compact Simplified Inverter SYSDRIVE 3G3JVSERIES...
Page 16: ......
Page 20: ...Chapter 1 Overview 1 1 Function 1 2 Nomenclature 1...
Page 26: ...Chapter 2 Design 2 1 Installation 2 2 Wiring 2...
Page 57: ...Chapter 3 Preparing for Operation and Monitoring 3 1 Nomenclature 3 2 Outline of Operation 3...
Page 65: ...Chapter 4 Test Run 4 1 Procedure for Test Run 4 2 Operation Example 4...
Page 216: ...Chapter 10 List of Parameters 10...
Page 229: ...Chapter 11 Using the Inverter for a Motor 11...