Sil - Ps1, Ps3, Do11, Do12 - Val Controls IHP24-A Hardware Manual

5.4 SIL – PS1, PS3, DO11, DO12
A device with an internal SIL Expansion Card can be installed in a SIL 1-4 installation without
affecting the SIL level. Device can be equipped with 4 different types of SIL Expansion Cards.
The units are approved for installation in SIL 1-4 circuits, if installed as described in this manual.
1X - SIL expansion card
PS1
1X
3X - SIL expansion card
PS1
PS3
3X
X Relay 1
1 Normally close
2 Normally close
3 Normally open
4 Normally open
5.4.1 Terminals
Power supply
5. PS2 (+)
6. PS2 (-)
21. PS1 (+)
22. PS1 (-)
51. PS3 (+)
52. PS3 (-)
Note: The PS1, PS2 and PS3 must be galvanic isolated.
Val Controls A/S • Limfjordsvej 3 • DK-6715 Esbjerg N • Tel. +45 7547 0600
DHW-UM-002
Revision: 3
DO11
Ixx24
DO12
DO11
Ixx24
DO12
Relay 2
Normally open
Normally close
Normally open
Normally close
vc@valcontrols.com • www.valcontrols.com
2X - SIL expansion card
PS1
PS2
2X
4X - SIL expansion card
PS1
PS2
PS3
4X
Digital output
23. DO11 (+)
24. DO11 (-)
25. DO12 (+)
26. DO12 (-)
DO11
Ixx24
DO12
DO11
Ixx24
DO12
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