Hardware reference
HARDWARE REFERENCE MANUAL
66
Revi
si
on 3.0
3.3
Power Supply Unit (PSU)
3.3.1
Introduction
The PSU supplies power to the other units in the Trajexia system.
You can use three different types of Power Supply Unit with the
Trajexia system:
•
CJ1W-PA202
•
CJ1W-PA205R
•
CJ1W-PD025.
3.3.2
PSU Connections
fig. 18
Each Power Supply Unit has six terminals:
/i
XXXXX
POWER
L1
AC100
-240V
INPUT
L2/N
NC
NC
A
B
C
D
E
F
G
Item
CJ1W-PA202
CJ1W-PA205R
CJ1W-PD025
A
110 - 240 VAC input
110 - 240 VAC input
24 VDC input
B
110 - 240 VAC input
110 - 240 VAC input
0 V input
C
Line earth
1
Line earth
1. The line earth terminal (C) is a noise-filtered neutral terminal.
If noise is a significant source of errors or electrical shocks are
a problem, connect the line earth terminal to the earth terminal
(D) and connect both to earth with a resistance of less than
100 Ohms.
Line earth
D
Earth
2
Earth
2. To help prevent electrical shock, connect the earth terminal
(D) to earth with a resistance of less than 100 Ohms with a 14-
gauge wire or minimum cross section area of 2 mm
2
.
Earth
E
N/C
3
Wdog relay contact
3. Terminals E and F for the CJ1W-PA205R are relay contacts
that close when Wdog is enabled. Refer to the BASIC Com-
mands in the Programming manual.
N/C
F
N/C
Wdog relay contact
N/C
I51E-EN-03.book Seite 66 Donnerstag, 28. Juni 2007 1:05 13