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4) External Appearance
Color code
(dark blue)
LED area
Fuse
Module mounting screw
(Use a M4 Phillips screwdriver.)
LED Area
120 DDO 343 20
F
ACTIVE
9
1
2
10
3
11
4
12
5
13
6
14
7
15
8
16
• Users can replace the fuses.
INFO
5) Spare Parts
Reserve the following spare part for maintenance.
Fuse Type: 235004 (LITTEL FUSE)
Module description (120DDO34320)
Removable terminal block
for field connections
Field wiring terminal
(Use a M3 Phillips screwdriver.)
LED
Color
ACTIVE
Green
Processing I/O.
F
Red
Fuse blown out, or external power supply not
connected.
1 to 16
Green
The corresponding LED is lit when the output
signal is ON.
3-43
3.2 Digital Output Module Specifications
Hinged terminal
Signal label insert
cover
Terminal block mounting screw
(Use a M3 Phillips screwdriver.)
Indication when ON
3
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