Table of Contents
Advertisement
ROLAND
Rev. 1.0
4.3.3 Spring loaded sensor bracket SH42GS
For utilization of PW sensors a spring suspended bracket is to be favourized instead of a rigid arrangement.
A substantial advantage is in the fact that the sensor contacts the sheet perpendicularly, even though
sensor bracket and sheet surface might not be completely aligned at a right angle.
Lateral pulling force on the sensor cable can be disadvantageous, since it might cancel-out the effect of
the spring suspension. Furthermore, it must be ensured that the springs do not get stuck. If the springs get
stuck, tilting of the sensor might no longer be compensated or tilting might even be provocated.
Ideally, the spring loaded bracket should be adjusted such that a slight pre-tension results. Thus the sensor
face is perpendicular contacted to the sheet, even under dynamic conditions.
Considerations:
•
A rigid sensor mounting bracket is unsuitable.
•
Lateral pulling force on the sensor cable must be prevented by design and during operation.
•
The travel of the springs should be dimensioned sufficiently and should not be fully used during
operation. The sensor bracket should be mounted such that collision with other machine parts is
excluded, and does not result in the springs getting stuck.
•
Assure enough spring pre-tensioning !
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
Ø 10
Sensor
movable
fixed
50
Ø 10
"A"
"A"
View in direction "A"
ø20,5
110
Picture: Spring loaded sensor bracket SH42GS
Page 39
Advertisement
Table of Contents
