-13-
Display on console
Display
on LEDs
Error contents Protection
Error
contacts
Retry Causes and countermeasures
EXT Failure-3
(Q
External error 3
Inverter
stops
Active Check the external error input side.
EXT Failure-4
(Q
External error 4
Inverter
stops
Active Check the external error input side.
Panel Error
3Q(U
Console panel error
Inverter
stops
Active Check the connector of the console panel.
Option Error
23(U
Internal optional board
error
Inverter
stops
Active Check the optional printed circuit board.
EEPROM Error
F6
Data storage error
Inverter
stops
Active
The default data is not stored, or the control board is
out of order.
F6
Program memory (ROM)
error
Inverter
stops
Active
X8
Under voltage (Power
failure)
Inactive
5.2 Troubleshooting
If trial running fails or an error occurs during operation, locate the cause in the procedures shown
below. If there are no applicable items below, contact us or the dealer you purchased your VF61.
Safety Precautions
1. Never open the cover while the power is being supplied to the inverter.
2. Before inspecting the inverter, turn the inverter power off, open the inverter cover, and make
sure that the CHG LED on the printed board is off.
3. Note that the heat sink may be hot according to the use conditions.
5.2.1 Motor does not run