Honeywell SYA14 Series Manual page 55

4.6 Test Contact (emitter terminals 4 and 5)
Features Test input
Type Voltage presence, Normally Closed contact
20 Ω max.
External contact resistance
Protections
Galvanic insulation : 2000 Vdc, short-circuits, overloads
Test contact may be used for additional external relay checking. When the link between
the two contacts is open, the light curtain is in the alarm condition and the red test
indicator on the emitter is illuminated as well as the red operation indicator on the
receiver. To return to the green condition, the link between the contacts must be
reestablished.
•
The Normally Closed contact must remain open for at least 40 ms to generate a test
sequence, and it takes 200 ms for the light curtain to restart after closing the test
contact.
WRONG TEST INPUT CONNECTION
The test input is NOT voltage free. Do not power the test input with any voltage supply.
Failure to comply with these instructions will result in product damage.
Figure 4-7 Test Contact
(DC+)
1A
Fuse
1
(+) internal
4
fuse
Optional test
input Optional test
(or
FF-SYA jumpered)
jumpered)
emitter
(-) (*)
5
2
(DC-)
(*) : use pin 3 for the FF-SYAqqqqqQ2E emitter
107031-23 EN FR26 GLO 1199 Printed in France
(DC+)
1A 1A 1.5A max
Fuse Fuse Fuse
1 1 3
4 (+) internal
fuse
input
(or
FF-SYA
internal
emitter FF-SYA
fuse
(-) (*) (*)
5 receiver
2 2 6 4 5
K3 K1 K3 K2
(1) (1)
(1)
K3
K1 K2
FSD FSD
(DC-)
See page Wiring Diagrams section for full size
schematic
Dual channel
machine control circuit
(recommended circuit)
NO P/ Phase
(DC+)
B
Fuse Fuse
K1 K2
K3 K3
K
1
Neutral
(DC-)
K
3
OR
K
Single channel
2
machine control circuit
Phase
(DC+)
Fuse
K1
K2
K3
Neutral
(DC-)
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