YASKAWA Varispeed-606PC3 - Page 59

1,
VS-606PC3 INVERTER
MAIN UNIT
(Cont'd)
Table 1
.8 Fault Display
and Contents (Cont'd)
* LED display

-'U : light

C - blink

"

light off
t
For OL3 (overtorque
detection), fault display or alarm display can
be selected according to the
constant (No .37) setting .
For details, refer to "OVERTORQUE DETECTION
FUNCTION" on
page 124 .
EF3 shows external fault
input from multifunction contanct input terminal (3),
EF4 from terminal
40
and EF5 from
terminal
®
.
9
For
details of CPF (control
function faults), refer to Table
19,
"Details
of CPF Display" .
Fault
Display
Digital
Inverter LED Display*
Contents
Possible Cause/
Corrective Actions
Operator
DS
1(GR) DS2 (RD)
OL 1
Correct load size, operation
(Motor Motor overload protec-
pattern or V/f set value
[constant
(No . 02 to 08)] .
Overload) _
tion operates
because
Set the rated current value
"'- '
of electronic
thermal
described in the motor
overload .
nameplate to constant (No .
19) .
OL2
(Inverter "'
Inverter overload
Correct load size, operation
Overload)
,~
.
o
protection
operates pattern or V/f
set value
because of
electronic [constant (No . 02 to 08)] .
i :#
i ' 2 thermal overload . Recheck
the inverter capacity .
OL3 T
Motor
current exceed-
Check the machine using
(Overtorque
O~
C
ing
set value is applied
status and remove the cause .
Detection)
because of machine
Or increase the set value
up
fault or overload
.
he[constant
le
valuevalue (No .
allowable
EF3, 4, 5 $
(External
Fault) ~~ Inverter accepts
Check the external circuitry
EF3 r_ ',, external fault input from
(sequence) .
external circuit .
CPF#
O-
Turn OFF
tpo
(Control
Func- '
'
Inveter control
one
and ten turn it
ON
again . Or initialize the
control
tionFault)
functions
are broke,)
constant
by using the digital
down .
operator . If the fault
still
exists, replace
the inverter .
Main circuit
fuse is
Digital
display blown . (for 460 V
is extin-
class only) Replace the inverter
guished .
-Control power supply
fault
Hardware fault