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Operating Instructions
Digital Output Loop Powered Type 9176
17
4 Function and design
4.1 Function
The loop powered digital outputs are used for intrinsically safe operation of e.g. solenoid
valves or LED indicators. The modules do not need a separate power supply. They get the
supply via the control signal from the connected output.
4.2 Design
#
Element
Description
1
Black terminals
Terminals for connections to devices in the
non-hazardous area
9
Blue terminals
Terminals for the connection to devices in
the hazardous area (intrinsically safe Ex i)
16
LED „OUT1“, amber
Indication of status output 1
17
LED „OUT2“, amber
Indication of status output 2
