Hardware Manual

Hardware Manual PCD 1 / PCD 2 Series│Document 26 / 737│Edition EN 15│2008-07-22

Saia-Burgess Controls AG

PCD2.A210

Input/output (I/O) modules

5

LEDs and connection terminals

9 8 7 6 5 4 3 2 1 0

A 3 A 2 A 1 A 0

A 0

A (^2) A 1
A 3
Bus
Bus interface
Relay
Contact protection
LED
Screw terminals
Relay contacts A0 to A3
Supply 24 VDC for Relay coils
Output circuits and terminal designation
A 0
9 8 1 0
A 3
7 6
PCD BusI/O Bus
Contact
protection
Relay
contacts
Terminals
24 VDC Isolated contacts
Adress-
LED A 3
Relay energized (contact open): LED on
Relay reset (contact closed): LED off
24 VDC must be connected to the +/- terminals.
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 “Watchdog” section, which describes
the correct use of the watchdog in conjunction with PCD2 components.
LED Output
0 A0
1 A1
2 A2
3 A3