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ROLAND
Rev. 1.0
4.3.5 Incorrect installation of the PW sensors
The following illustration shows examples of the incorrect installation of the PW sensors.
Faulty! The sensor does not
touch the sheet.
Faulty!
first and second sheet. The sensor
is mounted in an unfavorable
position.
Faulty! Fault prone control in a
bucket. An air gap exists between
bended sheets.
4.3.6 Electromagnetic interference
Electromagnetic interference can affect the measuring accuracy of the sensor. Therefore the sensors
should not be installed close to devices which cause electromagnetic interference. Such devices are e.g.
frequency converters, servo motors or proximity switches on inductive basis. In case of switching magnets
a minimum distance of 20 mm should be observed in order to avoid feedback.
The sensor cables should not be placed directly adjacent to cables with large interference potential, e.g.
power supply cables. This applies especially to longer cable lengths.
ROLAND ELECTRONIC GMBH · Otto-Maurer-Str. 17 · D-75210 Keltern · Telefon (0049) (07236) 9392-0 · Telefax (0049) (07236) 9392-33
OPERATING INSTRUCTIONS
DOUBLE SHEET DETECTOR R1000 UDK20
An air gap exists between
Faulty!
The sensor does not sit
perpendicular on the sheet,
sensor bracket apparently not
suitable.
Faulty! An air gap exists between
first and second sheet. The second
sheet clings to the first sheet,
perhaps by stamping residuals.
Picture: Faulty mounting of PW sensors
Page 41
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