GRAPHTEC GL980 - Logic Alarm Cable Connection and Functions; Logic;Pulse Input Specifications; Trigger Input;External Sampling Input Specifications

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CHAPTER 2 Checks and Preparation
2.8 Logic Alarm Cable Connection and Functions
This section describes how to connect the logic alarm cables and the functions of cable.
When wiring, turn off the signal supply source to prevent electric shock.
Also, position this input cables away from any power lines and ground cables.
The Input/output cable for GL (B-513: Option) allows logic/pulse input, external trigger input, and alarm/
trigger signal output.
Connect the Input/output cable for GL (B-513: Option) to the external input/output terminal as shown below.
Input/output cable for GL
(B-513: Option)
Logic/Pulse Input Specications
Item Description
Number of input channels 4
Input voltage range 0 to +30 V max. (single-ended ground input)
Threshold level Approx. +2.5 V
Hysteresis Approx. 0.5 V (+2.5 to +3 V)
* Switch between logic and pulse input.
Trigger Input/External Sampling Input Specications
Item Description
Number of input channels 1
Input voltage range 0 to +30 V max. (single-ended ground input)
Threshold level Approx. +1.9 V
Hysteresis Approx. 0.2 V (+1.9 to + 2.1 V)