4.12 Change of Power Input Type
4-65
Adjustment method
Type Setting of J108
Setting of input power
voltage
Overvoltage
protection
adjustment
Factory setting
03P9339C, D
(220 VAC)
Open 288 VAC 282 to 294 VAC
03P9339A, B
(100 VAC)
For
1-2, 4-7, 5-8
Jumper
144 VAC
Point at which CR23
is turned on by
adjusting R21
141 to 147 VAC
Note:
When the setting of “J108” is just changed without adjustments as menteioned above,
the operating voltage of the overvoltage protection circuit does not meet the specified
value.
- 220 VAC -> 100 VAC: approximately 130 VAC.
- 100 VAC -> 220 VAC: approximately 325 VAC.
Operation without re-adjustments may result in a failure of the equipment.
2. Circuit setting
The setting of J108 is the setting of the rectifier circuit and the voltage setting of the input
overvoltage protection circuit as shown below.
Fig. 4.12.3 AC PWR Board
4.12.2 Changing DC Power Input
P.C.Boards 03P9338A and 03P9338B are 12-24 V type. P.C.Boards (03P9338C and
03P9338D) are 24 V type. The setting of JP1 sets the input power type. This is the setting of
the operating voltage of the input power low volatage protection circuit. It is approximately
15 V in the 24 V type and approximately 8 V in the 12 to 24 V type.
+
-
J108
7/8
12
4/5
100VAC: Short
220VAC: Open
100VAC: Short
220VAC: Open
AC IN
CR26
CR8
C26
C31
L31
C32
L32
C27
R41
R19
R42
R18
R21
= 280VAC
- 310VAC
J108
U11
(RC9528)
Q11
Q12
PR5V H
INPUT Voltage
Error DET
U22
PW CONT
CR23
Doubler Rectifier
V
IN
4
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