FOTOTEST/2
PRASTEL S.r.l. Via del Vetraio, 7 40138 Bologna Italy - Tel. +39-051-6023311 Fax +39-051-538460
E-mail: [email protected] - Web site: http://www.prastel.com
FOTOTEST/2 01/1999.DOC
M E M B E R O F
ENGLISH
1. DESCRIPTION
FOTOTEST/2 is a photocell amplifier with two independent beams especially designed and constructed to ensure, when
used in conjunction with appropriate sensors, maximum safety for automatic accesses such as lift doors, burglar-proof
double doors, automatic, overhead and industrial doors, and so on. The device can be mounted by positioning the
sensors either directly in the doorway or inside one or more safety hips.
Product quality and reliability is further ensured by compliance with stringent European standards (EC). In fact,
when used in conjunction with motor control units constructed according to Machinery Directive 89/392/EEC (as
are all Prastel units in the Euromatic series), the system is endowed with a self-test function which permits to
check the proper operation of the photocell amplifier upon receipt of the self-test signal.
2. MAIN FEATURES
•
Management of two independent beams
•
Two NC relay outputs, one for each independent beam
•
Self-test function for proper operation
•
Selection of self-test level via jumper (
>
12-24 Vdc or
<
5 Vdc)
•
Easy installation and alignment of sensors thanks to the “install check” function
for attenuation of the intensity of infrared beams
Possibility of combination with Prastel’s current sensor models:
CR/9MS, CR/9MS9, CR/9MSD, CR/9MSP, CR/FC, CR/20MS
•
Compliance with UNI 8612 Standards
•
Compliance with European reference directives:
Machinery Directive 89/392/EEC
Electromagnetic Compatibility (EMC) 89/336/EEC
3. TECHNICAL FEATURES
Power supply
12-24 Vac/dc ± 10%
Maximum power input
1W (2 beams)
Infrared wave length
850 nm
Rated range
5 to 20 m
Operating temperature
-20 to + 70 °C
Relay response time
20 ms
Reset time
0.5 sec
Weight
520 grams
4. WIRING AND START-UP
•
Before installing the FOTOTEST/2 photocell amplifier, carefully read the “General Safety Precautions”.
•
Install the box via the appropriate mounting holes.
•
Align the sensors (namely any of those cited in point 2 above).
•
Route the connection cables through the appropriate fairleads.
•
Connect the power and signal cables.
•
Power and check that the beam alignment LEDs 1 and 2 come on.
•
Select low or high self-test level (depending on the control unit employed) via jumper J1 or J2.
•
Press the “install check” button to reduce the intensity of the connected beams by 40%. During this operation, check
that LEDs 1 and 2 always stay on.
Check that the self-test function is properly working by giving a command to the control unit (to be performed only in
case of the unit being set up for the self-test function). Upon this command being given, the LEDs associated with
beams 1 and 2 go off and come back on, while the associated relays simultaneously switch from the NC to the NO
status before returning to their initial NC status (on condition that the beams have been previously duly connected
and aligned).
