Honeywell FF-SYA14 Series Manual page 55

IMPROPER USE OF THE FF-SYA LIGHT CURTAIN
The loads impedance allowed by the FF-SYA safety static outputs must be 55,2 Ω minimum and 5 k Ω maximum. The turn-on
voltage must be greater than 5 V on resistive loads or 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
≤ 50000 / R
cable length must be L
cable
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 outputs are connected to the FF-SRS59392 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 20 pF / m
capacitance per unit length).
The cycle-start push-button is the normal push-button used to start the machine cycle and not an additional button for the
operator.
The cross-monitoring of the FF-SYA static outputs is based upon a self-checking principle which detects the output short-
circuit and the short-circuit between the outputs (cross-fault detection). The FF-SRS59392 interface control module is primarily
designed to be interfaced with Honeywell safety static outputs. Compatibility with any other emergency stop relay module is
not guaranteed.
Figure 4-9 Wiring Diagram using the FF-SRS59392 safety relay module
(dc+)
4
Optional test
input
(or jumpered)
5
(dc-)
(1) arc suppressors (220 Ω + 0,22 µF),
NO P/B: cycle-start push-button (Normally open contact)
(*) : use pin 3 for the FF-SYAGGGGGQ2E emitter and pin 7 for the FF-SYAGGGGGQ2R receiver
107031-33-EN FR26 GLO 1101 Printed in France
load.
Fuse
Fuse
FF-SYA
FF-SYA
receiver
emitter
1
1
internal
(+)
fuse
internal
(-)
(*) (*)
fuse
2
2 6
Dual channel
machine control circuit
(recommended circuit)
Phase
(dc+)
Fuse
K3
K4
Neutral
(dc-)
Fuse Fuse
NO
P/B
3 A1(+)
FF-SRS59392
relay module
A2(-)
4 5
Single channel
machine control circuit
Phase
(dc+)
Fuse
Fuse
OR
K3
K4
Neutral
(dc-)
Phase
(dc+)
Fuse
Fuse
(1)
K3
FSD
K3
K4
S33 S34/Y1 Y2 13 31
23
Signalling
K1
K2
contact
internal
fuse
S12 S22 24 32
14
(1)
K4
FSD
Neutral
(dc-)
X3
X1
X2
51