ABB Uvisor SF910i, User Manual

Page: 105 / 190

16 Troubleshooting
This section addresses the troubleshooting of SF910i in two parts. The first applies to
the Line-Of-Sight version (LOS) also called “Direct View”, and the second applies to the
Fiber Optic Cable (FOC) version.
16.1 Troubleshooting LOS
Table 16.1: Troubleshooting LOS
Corrective Actions Possible Causes Problem
Loose the swivel flange and aim the
scanner properly Scanner is not aimed on the target
flame SF910i does not sense the flame
Ask for the authorized personnel to
take actions Combustion is bad
Wrong wiring to the scanner
Check wiring
Lens is dirty
Make sure that the cooling/purging
air matches the requirements, and
follow the maintenance instruction
for cleaning
Electronics boards failure
Replace the unit
Change or confirm the factory default
setting and store it Device is in “First Time Power Up”
Wrong wiring to the scanner
Flame is detected but the flame relay
does not energize
Check wiring
Flame-relay contact failure
Replace the device
Find out the error code in Section 17 Hardware failure (?) Error code on display
Cycle SF910i power -OFF and then
-ON. If the error recurs, then decide
if the unit needs to be replaced or if
the cause can be external
Review SF910i connection earlier on
this manual and make wiring
congruent with serial converter
outputs Rx/Tx +/- polarity reversed on ATB
or RS485 line converter
RS232/RS485 serial line converter
driver not installed or not compatible
with the PC-WIN OS running Flame
Explorer
SF910i device does not exchange
data with Flame Explorer
8VZZ005286 B 105
16 Troubleshooting
16.1 Troubleshooting LOS