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Saia-Burgess Controls AG
LEDs and connection terminals
A3
A5
A4
9
8
7
6
A5
A4
A3
Output circuits and terminal designation
Address
LED A5
LED
0
1
2
3
4
5
Relay energized (contact closed): LED on
Relay reset (contact open):
24 V
must be connected to the +/- terminals.
DC
Watchdog: This module can be used on all base addresses; there is no interaction with the
watchdog on the CPUs. For details, please refer to the
the correct use of the watchdog in conjunction with PCD2 components.
Manual Manual PCD 1 / PCD 2 Series │ D ocument 26 / 737 EN22 │ 2 013-11-26
A0
A2
A1
5
4
3
2
1
0
3-5
0-2
A2
A1
A0
9
Output
A0
A1
24 VDC
A2
A3
A4
A5
Digital output modules, electrically isolated
Bus connector
Bus interface
Relay
LEDs
Screw terminals
Supply 24 VDC for Relay coils
Relay contacts A0 to A5
8
7
6
5
4
3
A5
A4
A3
3-5
0-2 A2
3 relay contacts have
one common terminal
LED off
"Watchdog"
Input/output (I/O) modules
Relay contacts
2
1
0
Terminals
A1
A0
section, which describes
5
5-37
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