145
Console LED display
Cause
Where to check and how to
take actions
Reference
1. The power supply of the
parallel printed control board
(PRIM66-Z of the master unit
and PRIS66-Z of a slave unit)
failed.
Replace PRIM66-Z or
PRIS66-Z.
[Contents]
<Applied to the parallel
models only>
It starts when the power
supply of the parallel
printed control board
[PRIM66-Z and
PRIS66-Z] has an
abnormality.
2. The wiring between the gate
printed board
[GAC66-Z](CN-PS24V) and
the printed control board of the
master unit [PRIM66-Z](CN9)
and between the gate printed
board [GAC66-Z](CN-PS24V)
and the printed control board
of the slave unit
[PRIS66-Z](CN-PS) is
incorrect.
Wire them correctly.
Console LED display
Cause
Where to check and how to
take actions
Reference
1. The main cooling fan of VF66B
(DC motor drive) failed.
Check the main cooling fan
of VF66B (DC motor drive)
and replace it.
2. The power supply for the
cooling fan is decreased.
Replace the power supply
board [PSFM66-Z].
[Contents]
<This function is applied
to models 7522, 7544 and
higher, and the unit
parallel models>
It starts when the main
cooling fan in the master
unit and slave unit has an
abnormality. (The
operation is not stopped
for protection.)
* A character in the third
digit from the right
distinguishes a master
unit (n) from slave units
(1, 2, and 3).
3. The wire between the gate
printed board [GAC66-Z] and
the power supply board
[PSFM66-Z] is disconnected or
incorrect.
Correct it.
4. The relay for turning on/off the
cooling fan cannot be enabled.
Replace the power supply
board [PSFM66-Z].
