3
OPERATIONOPERATION
When the optical path of the infrared beam linking the emitter with the receiver is totally
interrupted the receiver output switches off and remains in the off-state.
When the beam is released again, the output switches to the on-state.
The correct operation of the photocell is checked by means of the test function, which
permits the measurement the response time: if a low level signal is applied to the emitter's
test input the beam emission is interrupted and therefore the receiver goes to the off-state
within a time approximately equal to 8 msec in a normal operating condition.
USE AS A PART OF A SAFETY SYSTEMUSE AS A PART OF A SAFETY SYSTEM
Ulisse UPC has been third-party certified as being in compliance with the requirements of
IEC 1496 which are relevant for a photoelectric sensor (see enclosed certificate).
Thanks to the test input on the emitter assembly the Ulisse UPC photocells can be connected
with safety devices (e.g. safety-related parts of control systems) measuring their response
time.
Ulisse UPC can therefore be used as a single beam photoelectric detector within a Type 2
safety system for the protection of human beings exposed to hazardous machines or areas ifif
the overall safety system has been certified as being in compliance with the safetythe overall safety system has been certified as being in compliance with the safety
requirements of the "Machine" Directive (89/392/EEC and amendments) or of arequirements of the "Machine" Directive (89/392/EEC and amendments) or of a
relevant IEC or European Standard (e.g. IEC 1496).relevant IEC or European Standard (e.g. IEC 1496).
No other use of Ulisse UPC as a safety device is admitted. REER will not be liable for any
consequence arising from the use of Ulisse photocells under conditions differing from the
ones described above.
To Next Page
Loading...
Need help?
General