GRAPHTEC GL980 - Alarm Output Specifications

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CHAPTER 2 Checks and Preparation
Alarm Output Specications
Item Description
Number of Output channels 4
Output 1 is used for alarm output and trigger output by switching.
Output format Open collector output
+5 V, 10 kΩ pull-up resistance
* For details of alarm output, refer to the next page.
Trigger output time When a start trigger or a stop trigger is detected, a pulse of approx.500 μs
width is output from the output 1 terminal.
(When setting low active and trigger output)
* When a stop trigger is issued within 1 ms from the start trigger, the trigger
is output at an interval of approx.1 ms.
When the power is turned OFF or ON, the device temporarily becomes at an alarm state.
Approx. 500μs
Approx. 1ms
Approx. 500μs
Trigger output
Trigger output
of start trigger
Trigger output
of start trigger