Roland Double Sheet Detector R1000 Series Manual page 62

Communication with the PLC
6.3.6 Zero adjust
For performing a zero adjust no sheet must be present between the sensors.
(without IN 3/4)
OUT 4, 3, 2, 1
Check whether the output OUT0 "Enable" has been switched to HIGH (ready for operation),
1
otherwise a fault condition is existing.
Before initiating the zero adjust all inputs must be switched to LOW for 10ms.
2
No sheet must be present between the sensors.
Switch the input IN4 "zero adjust" to HIGH.
3
Then the system performs the zero adjust, which will be completed within 15 seconds.
Now the system waits for the input IN4 to be switched to LOW:
Within 10ms the outputs OUT1...OUT4 are switched to LOW.
4
After point 4 or 10ms after point 3 switch the input IN4 "zero adjust" to LOW.
5
The outputs OUT1...OUT4 switch to HIGH.
6
ROLAND ELECTRONIC GmbH · Otto-Maurer-Str. 17 · DE 75210 Keltern · Phone +49 (0)7236-9392-0 · Fax +49 (0)7236-9392-33
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Double Sheet Detector-series I20
Enable
OUT 0
IN 0-9
Teach-in
IN 3
range
Zero adjust
IN 4
0-1-2-sheet; warning
1
min.10ms max.10ms
2
Manual
4
max.150sec.
min.10ms
3
5
B0069991 / Rev. 1.7
6