GRAPHTEC GL820 - Logic Alarm Cable Connection and Functions

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CHAPTER 2 Checks and Preparation
2.6 Logic Alarm Cable Connection and Functions
The logic alarm cable (B-513: Option) enables logic/pulse input, external trigger input, and alarm signal output.
Connect the logic alarm cable (B-513: Option) to the external input/output terminal as shown below.
Logic alarm cable (B-513: Option)
Logic/Pulse Specifications
Item Description
Number of input channels 4
Input voltage range 0 to +24V max. (single-ended ground input)
Threshold level Approx. +2.5V
Hysteresis Approx. 0.5 V (+2.5 to +3 V)
*Switch between logic and pulse input.
Trigger Input Specifications
Item Description
Number of input channels 1
Input voltage range 0 to +24V max. (single-ended ground input)
Threshold level Approx. +2.5V
Hysteresis Approx. 0.5 V (+2.5 to +3 V)
Alarm Output Specifications
Item Description
Number of Output channels 4
Output format Open collector output
+5 V, 10 KΩ pull-up resistance
* See the next page for details on alarm output.