Signal Timing Patterns; Integrated Alarm - NSD ABSOCODER NPG-220HZCLC Specifications & Instruction Manual

9-3. Signal Timing Patterns

9-3-1. Integrated alarm

The integrated alarm signal indicates that the converter outputs normal pulses.
This signal is "LOW level" when the ABSOCODER sensor and converter are normal status.
Important
For your safety, read pulses when the Integrated alarm signal is "LOW level".
The integrated alarm is "HIGH level" in the following cases:
-The converter power is OFF. (In the case of the external power supply for the output signal is supplied to
the output circuit)
- An error occurred.
For more details, refer to "11-2. Output State when Occurring an Error"
(1) Signal output timing at power ON/OFF
If the external power supply for the output signal is supplied.
Converter
power
Integrated alarm
output (ALM)
(2) Timing of error clear
The error clear signal must be ON (LOW level) 500μs or more.
The error clear signal must be turned OFF (HIGH level) after clearing the error.
Error clear
input (CLR)
Integrated alarm
output (ALM)
*: Pulse will not output while error clear signal is input.
ON
OFF
1s or less
H
L
H (OFF)
L (ON)
H
L
μ
500 s or more
100ms or less
29
100ms or less