Honeywell SYA14 Series, Manual

Page: 54 / 737

54
107031-23 EN FR26 GLO 1199 Printed in France
•
The loads impedance allowed by the FF-SYA failsafe static outputs must be 55.2
Ω
minimum and 5k
Ω
maximum. The turn-on voltage must be greater than 5 V on
resistive loads or greater than 7 V on inductive loads.
•
The maximum cable length between the FF-SYA static outputs and the loads mainly
depends upon the loads resistance : the cable length must be L
cable
≤
50000 / R
load
•
If the FF-SYA light curtain outputs are connected on safety relays with
mechanically linked contacts, the maximum cable length between the FF-SYA
outputs and the relays is greater than 100 m.
•
If the FF-SYA light curtain outputs are connected to the FF-SRM muting
module, the maximum cable length between the FF-SYA outputs and the
muting module is
50 m.
•
If the FF-SYA light curtain ouputs are connected to the FF-SRS5939 safety
control module, the maximum cable length between the FF-SYA outputs and
the control module is 50 m (for cable length greater than 10 m, use a cable
with a 20pF / m capacitance per unit length).
Figure 4-6 Connection to the Machine Control Circuitry
FF-SYA
receiver
4
3
O
SSD
2
O
SSD
1
5
K3 K2
(1)
K2
FSD
K3 K1
(1)
K1
FSD
1.5A max Fuse
(DC+)
(DC-)
(1)
K3
NO P/
B
K
1
K
2
K
3
6
NO P/
B
K
1
K
2
K
3
(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
(DC+)
(DC-)
1A
Fuse
FF-SYA
receiver
1
2
FF-SYA
emitter
1
2 4
3
4
5
Optional test
input
(or
jumpered)
O
SSD
2
O
SSD
1
5
K3 K2
(1)
K2
FSD
K3 K1
(1)
K1
FSD
internal
fuse
internal
fuse
1A
Fuse
1.5A max
Fuse
(*) (*)
(+)
(-)
6
See page Wiring Diagrams section for full size schematic
IMPROPER CONNECTION OF LOAD
For safety reasons, the loads must be connected between terminals 4-6 and between
terminals 5-6 .
Failure to comply with these instructions could result in death or serious injury.