* OPERATION *
DIR/STOP/FOR
(0.0) FOUT
25.0 [Hz]
Display on console4.4 Operating through Terminal Block
Press the OPR key, then press the REM key.
(1) Activate the forward operation signal (between
terminals 17 and 18 shown on page 4)
(2) Turn the frequency setter (F.set) shown on page 4
clockwise. The motor velocity is increased within
the time set with code number 08 Acc.Time.
(Connect the frequency setter properly)
(3) Deactivate the forward operation signal. The motor
is decelerated within the time set with code number
00 Dec.Time and then stops.
(4) To run the motor reversely, activate the reverse
operation signal (between terminals 19 and 18).
-12-
5. Troubleshooting
5.1 Error Messages and Operations
When the inverter malfunctions or becomes out of order, an error message and an error code are
displayed on the console and 5-digit, 7-segment LEDs. The inverter stops and error contacts 3, 4,
and 5 go active when an error occurs. In such a case, see the table shown below, locate the error
cause, and take proper countermeasures. Also refer to the contents and values of monitor code 17
Trouble moni (i.e., reading error records).
Display on console
Display
on LEDs
Error contents Protection
Error
contacts
Retry Causes and countermeasures
Overcurrent
R&
Excessive output current
Inverter
Stops
Active
The inverter output current exceeds the allowable
value. See 5.2.2
IGBT Fault
L*EW
IGBT error
(7.5kW or less)
Inverter
Stops
Active
The IGBT(IPM) is out of order. Error details:
Overcurrent, abnormal gate power supply, or
overheat.
See 5.2.4
IGBT(U) Fault
L*W
IGBT
(U phase) error
(11kW or less)
Inverter
Stops
Active
IGBT(V) Fault
L*W
IGBT
(v phase) error
(11kW or less)
Inverter
Stops
Active
IGBT(W) Fault
L*W
IGBT
(W phase) error
(11kW or less)
Inverter
Stops
Active
Over Voltage
R8
Excessive DC voltage
Inverter
Stops
Active O
The DC voltage exceeds the allowable value.
See 5.2.3
Over Load
R/
Overload
(Electronic thermal)
Inverter
Stops
Active
Overload current flows for long time.
See 5.2.5
Blown DC fuse
)8
Main circuit fuse blown
Inverter
Stops
Active
The IGBT is broken, and the fuse blows out.
See 5.2.6
Start Failure
6WU)
Malfunctioning in starting
Inverter
Stops
Active
The inverter fails to start operation, though an
operation signal is inputted. (Instantaneous stop
occurs in the instantaneous stop mode)
Over Freq
R)
Over-frequency
Inverter
Stops
Active The output frequency exceeds the over-frequency.
EXT Failure-1
(Q
External error 1
Inverter
Stops
Active
An external error.
Check the input.
EXT Failure-2
(Q
External error 2 Active
An external error.
Check the input.