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Chapter 1: Alarms
A091 – Measuring Cell SQ3 Signal Defective
MEASURING CELL SQ3
SIGNAL DEFECTIVE!
POSSIBLE CAUSES:
-CELL OBSTRUCTED
-CELL DEFECTIVE
-OBSTACLE DETECTED
Description:
The Measuring Cell SQ3 Signal Defective alarm occurs if input (I1.2 – SQ3) is active for longer than 1 second before the v-channel
moves to the upper or lower position.
Solution:
Case
Input
Remote Pendant
1
Bit 2 = 1
2
Bit 2 = 0
A091
•
MODULE 1
76543210
•
100
MODULE 1
Alarm needs to be cleared. Press the STOP key on the
76543210
remote control station to clear the message and reset
the alarm.
0
Solution
Remove any obstacle that measuring cell might be
picking up.
Check the measuring cell adjustment (refer to
Measuring Cell Adjustment – SQ3, pg.
QUICK LOAD SERVO S3
1 - 2 5
3-21)
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