Honeywell SYA14 Series Manual page 645

FF-SR25980 TROUBLESHOOTING FLOW DIAGRAM
Apply correct power;
replace safety module if
necessary.
107011-10 EN FR26 GLO 0499 Printed in Germany
Machine
Down
Is power to A1/
No
A2 within
specifications?
Yes
Check continuity between Y1/
Y2 for a closed condition;
replace external final switching
device(s), if necessary.
Yes
Problem
resolved?
No
Check
continuity
between S13/S14
and S23/S24; are
they closed?
Yes
Activate both hand
switches in less than half a
second.
Are S13/
S14 and
S23/S24
closed?
No
Replace safety module.
Machine
Working
Machine
Working
No
Check wiring and/or replace
defective external hand switches.
No
Problem
resolved?
Problem is external to safety module; check
Yes
external wiring and correct operation of final
switching device(s).
Yes
Machine
Working
7