50
107031-33-EN FR26 GLO 1101 Printed in France
Figure 4-8 Test Contact
FF-SYA
emitter
1
2
4
5
Optional test
input
(or jumpered)
internal
fuse
dc+)
1 A Fuse
(dc-)
(*)
(+)
(-)
(dc+)
(dc-)
1 A Fuse
FF-SYA
receiver
1
2
FF-SYA
emitter
1
2
4
3
4
5
Optional test
input
(or jumpered)
O
S
S
D
2
O
S
S
D
1
5
K3
K2
(1)
K2
FSD
K3 K1
(1)
K1
FSD
NO P/B
K1
K2
K3
(1)
K3
OR
Dual channel
machine control circuit
(recommended circuit)
Phase
(dc+)
Fuse
K1
Fuse
K2
Neutral
(dc-)
K3
K3
Single channel
machine control circuit
Phase
(dc+)
Neutral
(dc-)
Fuse
K1
K2
K3
internal
fuse
internal
fuse
1 A Fuse
1,5 A max
Fuse
(*)
(*)
(+)
(-)
6
(*) use pin 3 for the FF-SYA
❏❏❏❏❏
Q2E
emitter
See page wiring diagrams section for full size schematic
(1) 31 Vdc varistors
NO P/B: cycle-start push-button (Normally open contact)
4.8
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.
F
SYA8
3
F
SYA8
2