Troubleshooting Flow Diagram (Sheet 2 Of 2) - Honeywell SYA14 Series Manual

Inspection and Maintenance

Troubleshooting Flow Diagram (Sheet 2 of 2)

Do the following:
Isolate sensor from machine control circuitry as follows:
Label, then disconnect A1/A2, B1/B2, C1/C2 wires from control unit.
Replace control
control unit.
Problem
No
resolved?
Connect control unit to
Machine
machine control
Working
circuitry. Return
defective control unit.
For product return information, see Warranty Information on page 61.
56 Honeywell • PK 107007-01 EN FR26 GLO 0298 Printed in France
Continued from
Sheet 1 of 2.
Control unit sensing threshold
indicator (excess gain) is
flickering.
No
Remove fiber optic cable connected
to control unit; connect optical
jumper* to control unit.
Adjust excess gain; refer
to Connections and Setup
section of manual.
Control unit
No
output status
unit.
LED is green?
Connect
sensors to
Move optical jumper to the next
optical element (sensor or optical
extension cord) and adjust excess
Yes
Yes
extension cord.
FF-SM Series Installation Manual
Adjust excess gain; refer
Yes
to Connections and Setup
section of manual.
Problem
No
resolved?
Optical element(s) failure;
Only one sensor connected
Yes
to control unit (no optical
extension cord)?
No
No more
elements
to verify.
gain
Control unit
output status
LED is green?
No
Replace the
defective mat
* Optical jumper: Connect one side of the
sensor/optical
Jumper the two remaining connectors (on
the other side of the cable) with one ST
For application help: see Warranty Information
Machine
Yes
Working
Replace sensor.
Yes
Return defective
one.
Connect control unit to machine
control circuitry. Adjust excess
gain; refer to Connections and
Setup section of manual
Machine
Working
fiber optic cable to the control unit.
cable-to-cable connector.