2 SPECIFICATIONS OF INDIVIDUAL MODULES
2-2
2.1 Power Supply Modules
Table 2-1 Specifications of Power Supply Modules
Item Specifications
Model LWV450
LWV460
LWV550
Rated input voltage 100 to 120 VAC 100 to 120 VAC
100 to 110 VDC
100 to 110 VDC
Input voltage
fluctuation range
85 to 132 VAC 85 to 132 VAC
80 to 143 VDC
80 to 143 VDC
Output
current
12 VDC
3.5 A
3.5 A
3.5 A
5 VDC
0.8 A
2.0 A
0.8 A
Table 2-2 Names and Functions of Parts (the nos. below are
keyed to those in the rightmost side of the figure)
No. Name
Function
1
Power-supply
operation indicator
(POWER ON) LED
Indicates the power supply is energized.
This indicator LED is lit when the power switch
is turned on.
2
Voltage check
terminal (DC12V
CHECK)
Is a voltage check terminal that enables the user
to check if the 12-volt output voltage is normal.
This terminal should not be used for any other
purpose than checking the voltage.
3
Voltage check
terminal (DC5V
CHECK)
Is a voltage check terminal that enables the user
to check if the 5-volt output voltage is normal.
This terminal should not be used for any other
purpose than checking the voltage.
4 Voltage check
terminal (GND)
Is a 0-volt reference voltage terminal that
provides a reference voltage for voltage
checking.
This terminal should not be used for any other
purpose than checking a voltage.
5 Power input
terminals (H, N)
Allow a cable from a power source to be
connected to the power supply module.
The input voltage requirement of the power
supply module depends on its model.
6 Line ground (LG)
terminal
Is a grounding terminal to ground the power
supply line.
This terminal needs to be connected to the
grounding terminal of the cubicle.
7 Frame ground (FG)
terminal
Is a grounding terminal to ground the power
supply module.
(This terminal need not be connected either to
the mount base’s FG terminal or the grounding
terminal block. Just leave it unwired.)
Figure 2-1 An External View of the LWV450
Power Supply Module
1
2
3
4
5
6
7
8
9
20
19
18
17
16
15
14
13
12
11
10
LWV450
P.SUPPLY
HITACHI
POWER ON
DC12V
CHECK
DC5V
CHECK
H
AC100V
IN
N
LG
FG
GND
2
3
5
6
7
4
1
Содержание HSC-2100
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