(2)
LDIO
©
(MTL
2) (ForH
company's
motor)
.
When
the
supply
voltage
becomes
too highor lowfor themotor condition, lightup
LDIO,
put the
motor controller in an unenergized state and then completely stop the motor within 300 ms. Reset
the motor when the supply voltagebecomes normal valuesat the time
of
next turning the power
switch back ON. Once die motor is locked, do
not
reset until the power switch is turned ON again.
Table
5-1
Rated
voltage
Over
voltage
Low
voltage
30200
~
240V
300V
Min.
140V
Max.
10100
~
120V
150V
Min.
70V
Max.
10200
~
240V
300V
Min.
140V
Max.
5-4.
Solenoid
monitor
LED
Fig.
5-12
o
H
r
I c
01
+
i'
R46
BR I
R47
TL I
PC
•
R48
BT I
R49
TRM I
"• R50
O wp I
•3
R5I
PL
I
RS2
PWR I
J5I
P.Vfl
CM
n •« wi
la
r-
(D f C
A
JS9
-K-
•LOI
,LD2
1X3
.LD3
CtD
,L04
Sl3
•
LOS
E(3
•
L06
• LOT
I
JZL
R53
I R
• 54
4"
I
R5S
I
RS6
I
R57
I
R58
I
01
L
I
I
04
I
05
I
2401'-6
I40l~6
oTl'
Table
5-2
1) If malfunction of trimming(TRM),wiper
(WP),
presser
foot lifting(PL),
reverse
feed (BT), brake
(BR), top feed lifting (XL• PC • BT), etc. has
occurred in ordinary operation, troubleshoot
according to the following procedure.
(1) After turning the power
"OFF",
loosen the
PSC front cover setscrew and
open
the cover.
(2) Then, turn the power "ON", check the solenoid
operation and the maincircuit board LED
brightness and find the failure.
Solenoid
LED
Location
of
failure
Checking
method
Does
not
light
Function
selection
switch
is
not
set
(PL,
WP),
Main
circuit
board
is
defective.
Defective
synchroni2er
Check
with
the
manual
Replace
the
board.
Replace
the
synchronizer
0)
(0
a>
Q.
O
Dark
Incorrect wiring system (imperfect
contact,
coming
out
and
disconnection
of
J52
connector)
Power
circuit
board
is
defective.
Transistor
circuit
board
is
not
set.
Transistor
circuit
board
is
defective (imperfect contact, breakage).
Reinsert
connector
and
check
conduction.
Replace
or
add
the
board.
Use
another
transistor
board.
O
c
v>
0)
O
O
Bright
Defective
J49
(12P)
connector
(coming
out,
imperfect
contact,
disconnection)
Defective
solenoid
Defective
circuit
J41
connector
power
board
(coming
out,
imperfect
contact,
disconnection)
Reinsert
connector
and
check
conduction.
Measure
resistance.
BR
LED
ON
(BR
solenoid
OFF)
.c
O)
Does
not
light
Transistor
circuit
board
is
defective.
Use
another
transistor
board.
a>
(3
0)
Q.
O
O
t/>
a>
3
C
Dark
Main
circuit
board
is
defective.
Wiring system
or
power
circuit
board
is
defective.
Transistor
circuit
board
is
defective.
_
-
Defects
triplicated
Replace
box.
*-*
C
o
o
Bright
Main
circuit
board
is
defective.
Replace
main
circuit
board.
-
54
-
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