Selco M2500 - Digital Sensor Inputs

SELCO A/S M2500 Installation Manual
Revision: 23-04-2012 Page 13
4.4 Digital sensor inputs
Nr.
Description
Remark
17
Digital input 1
Sensor input for digital sensor 1
18
Digital input 2
Sensor input for digital sensor 2
19
Digital input 3
Sensor input for digital sensor 3
20
Digital input 4
Sensor input for digital sensor 4
21
Digital input 5
Sensor input for digital sensor 5
22
Digital input 6
Sensor input for digital sensor 6
23
Digital input 7
Sensor input for digital sensor 7
24
Digital input 8
Sensor input for digital sensor 8
25
Digital input 9
Sensor input for digital sensor 9
26
COM
Common reference for digital
sensor inputs
The Digital sensor inputs are used for the connection of the digital sensors. Digital sensors can be
Normally Open (NO) or Normally Closed (NC) logic. Cable break and short circuit monitoring is
available.
4.4.1 Connection of a normally open sensor without cable monitoring
The following example shows the Connection of a normally open sensor without cable monitoring.
The sensor is considered active when
connected to COM, inactive when open.
When activated, the input generates an
alarm or shutdowns or a control signal,
depending on the configuration.