Val Controls IHP24-B - Installation Guide; Installation Steps

DHW-UM-001
Val Controls A/S • Sallingsundvej 5 • DK-6715 Esbjerg N • Tel. +45 7547 0600
vc@valcontrols.com • www.valcontrols.com
Revision: 6
6/12
3 Main board
3.1 Power supply – PS2
24VDC power input to the device.
PS2
5
6
+
-
0V24V
Depending on device configuration, this power supply input may not be used.
3.1.1 Terminals
PS2
5 (+)
6 (-)
3.1.2 Electrical specifications
Power supply – PS2
Power supply
20.4 – 27.6VDC
Power dissipation, no position sensor/loop or
valves are connected.
< 2W
Power dissipation, with maximum load on all
inputs and outputs
< 5W
3.2 Earth
Device instrument earth terminal shall be connected to instrument earth bar at marshalling cabinet
to avoid electromagnetic interference.
7
Instrument earth
3.2.1 Terminal
IE
7 Instrument earth