Honeywell SYA14 Series Manual page 704

FIG. 15. FF-SRS5988 TROUBLESHOOTING FLOW DIAGRAM (PAGE 3 OF 3)
Are two channel inputs
- Ensure channel 1 is connected
between S11/S12
- Ensure channel 2 is connected
between S21/S23
- Ensure jumper is set between
Disconnect S11. Is input
channel one closed ? Also, is
there less than 68 Ohms and
more than 21Vdc between
S12/A4? Disconnect S21. Is
input channel two closed?
Also, is there less than 68
Ohms between S21/S23 and
more than 21 Vdc between
12
From
Fig. 14
No
selected?
Yes
S11/S22
questions
S22/A3 ?
No
Reconnect S11 and
S21. Correct/
replace the external
sensor(s), wiring,
supply voltage, etc.
Yes
Yes to all
Reconnect S11
(and S21).
Safety module has
failed. Replace the
module
.
Go to
Page 2
107018-04 EN FR26 GLO 1198 Printed in Germany
- Ensure jumper is set
between S12/S22
- Ensure jumper is set
between S21/S23
Disconnect S11 and
ensure input channel
one is closed, less
than 68 Ohms
between S11/S12 and
more than 21 Vdc
between S12/A4.
No
Reconnect S11.
Correct/replace the
external sensor(s),
wiring, supply
voltage, etc.