48 107063-11 EN FR26 GLO 800 Printed in France
Perimeter System Wiring
IMPROPER CONTROL SYSTEM
Ensure independent stop circuit 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.
The following figures illustrate the electrical wiring of the safety perimeter systems. The
customer is responsible for providing the safety relays, R, the restart push-button, the arc
suppressors, and the test circuit. The two NO safety contacts and the NC safety contact of the
FF-SPS4 are designed to switch at a minimum of 50 mA.
Figure 3-5 Wiring Diagram for One Perimeter System
Receiver
R1
R2
N
O
Neutral
Restart Pushbutton
dditional Output
1
2
B1
B2
C1
C2
C3
C4
Mode Selector
rc suppressor (see relay
supplier for best value)
Power
Machine
Control
Emitter and Receiver
Internal
4
Hot
Neutral
5
GROUND
(Screw on
connector)
or housing
100 ms < t < 3,4 s
R1
R2
Hot
Hot
A1, A2: One Normally Closed (NC) safety contact
B1, B2 and C1, C2: Two Normally Open (NO) safety contacts
C3, C5: Restart the safety perimeter guarding system and monitor the external relays
R1
R2
C5
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