Honeywell SYA14 Series Manual page 135

IMPROPER PERIMETER PROTECTION
• Design control circuit to allow a manual restart before further machine operation can occur.
• Locate manual restart to allow operator a clear view of danger zone.
• Operator should NOT be able to reach manual restart from within danger zone.
• Design control circuit to prevent Programmable Logic Controller from overriding manual
restart.
Failure to comply with these instructions could result in death or serious injury.
IMPROPER SYSTEM PERFORMANCE
Ensure independent stop circuit safety relays have mechanically linked contacts that prevent
contact overlapping in the event of a welded contact.
Failure to comply with these instructions could result in death or serious injury.
Figure 3-9 Connection of Two Safety Light Curtains (new installation)
Five relays, R1, R2, R3, R4 and R5 are used as follows:
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Jumper link position on the Receiver
Power Board (factory setting)
If the sensing field of one safety light curtain is interrupted, the other goes immediately into the
RED condition.
54 Honeywell • MICRO SWITCH Sensing and Control
* RC component:
220 Ω + 0.22 µF.
FF-SB Series Installation Manual
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Jumper link position on the Receiver
Power Board (factory setting)
For application help: call 1-800-537-6945