YASKAWA Varispeed-606PC3

2 . DIGITAL
OPERATOR
(J%fOP-114)
(Cont'd)
r
E
Protective
Function
Error
Causes
Acton to
be Taken
Low-voltage
Protection
- Check the main
circuit DC
(Main Circuit
Input
voltage drop
Voltage
.
Check power supply
capacity
Insufficient) and power system .
Motor current exceeds the preset
Check
the use of
machine
. Correct
Overvoltage
value because of machine error or
the
overload cause or set a higher
Protection
overload
detection level [constant (No . 41)]
which is within the allowable range
Cooling Fin
Overheat
Defective
cooling fan
Replace the cooling fan and clean
(Only for
Intake air temperature rise
the filter .
Types
of
Clogged filter
Intake a~ temperature : 104°
F(40t)
Forced
or less
Cooling)
Overtorque
Motor current
exceeded the set
Check the driven machine and
correct the cause of the fault or
Detection
value because of
machine
fault or
increase the set value [constant
overload ..
(No . 41)J up
to the
machine
allowable
value .
Simultaneous
Forward and
'
Operation sequence error
Recheck the control sequence .
Reverse
Run
'
3-wire/2-wire selection error
- Recheck constant settings
Commands
(Nos
. 32,
33 and
34) .