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4.7 Wiring Diagrams
The following wiring diagrams illustrate the electrical connections for the FF-SYA Series
light curtains. The customer must supply the three safety relays, K1, K2 and K3, the cycle
start push-button and the test circuit.
Note : Mechanically linked contact relays are sometimes called captive contact, anti-weld,
or guided contact relays.
IMPROPER INSTALLATION OF FF-SYA SERIES LIGHT CURTAIN
•
Use the recommended wiring diagrams to ensure external relay monitoring by the
interface.
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 (such
as GE CR120 BP Machine Tool Relay or Telemecanique CA3-KN31BD3 or CA3-
DN31BD relay) that prevent contact overlapping in the event of a welded contact.
Failure to comply with these instructions could result in death or serious injury.
IMPROPER CONNECTION OF LOADS
For safety reasons, the loads must be connected between terminals 4-6 and between 5-6.
Failure to comply with these instructions could result in death or serious injury.
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 shall 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.
Summary of Contents for SYA14 Series
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