Honeywell SYA14 Series Manual page 602

4.8.2 RESTART input (terminals 26-27)
The Normally Open contact of a restart push-button must be connected in series with the
Normally Closed contacts of the FSDs relays. The use of a key switch is recommended to
avoid unexpected restart during maintenance operations for example (the maintenance
personnal shall keep the key with him during the intervention).
MANUAL RESTART CONDITIONS
•
By design, the manual restart of the muting module is required after each power reset
and after each opening of the OSDs outputs caused by the interruption of the protective
beam.
•
The restart is allowed if no failure is detected and if the detection field of the protective
equipment is clear.
•
If one of the following element fails, the manual restart of the module is impossible :
OSDs outputs, FSDs, or SSD relay or muting lamp.
•
In the conveyor mode, it may be necessary to press the override push-buttons P/B1 and
P/B2 to clear the detection field before restarting the module (see chapter 2.4.2 Override
function).
TIMING CONDITIONS
The effective restart of the module is achieved 30 ms after the push-button is released, and
after a short pulse (between 0.1s and 1s) is sent on the appropriate input of the module.
Features
Type
Dynamic signal
NC contact
Protections
68
RESTART input
voltage free and without reference potential
50 mA min. plak
50 Ohms max. resistance
galvanic insulation : 500 Vdc
107004-15 EN FR26 ROW 0899 Printed in France