ABB SCK - Page 219

OI/SCK
-EN Rev. E Operating instruction SCK Gas Sampling System 219
Error
display
Plain text (not
stored in controller)
Cause
Measures
Error Com-
pressed Air
Emergency
Tank
Minimum com-
pressed-air emer-
gency tank pressure
not adequate

If the central compressed-
air supply is also faulty,
first remedy the cause for
failure of the central com-
pressed-air supply
 Leak in tank supply pipes
or tank itself
 Pressure switch 578 error

Check central compressed-
air supply
 Check supply pipe to com-
pressed-air emergency tank
for leaks
 Check functioning and set-
ting of pressure switch 578
Sample Gas
Probe Pres-
sure MIN
Sample gas main
alarm low pressure
not reached

Gas sampling probe
clogged
 Sample gas line clogged

Check and, if necessary,
clean gas sampling probe
 Check and, if necessary,
clean sample gas line
Probe Heat-
ing Temp.
MIN
Probe heating tem-
perature too low
 At start-up probe heating
not switched on long
enough
 Probe heating defective
 Defect in temperature
controller
 Heating connection cable
damaged

Heating sleeve defective
 Wait for heating-up time
(approx. 20 min)
 Check probe heating for
proper functioning
Probe Heat-
ing Temp.
MAX
Probe heating tem-
perature too high
 Probe heating overheating  Check PT100 sensor
Probe Heat-
ing Temp.
MIN
Probe heating tem-
perature too low

At start-up probe heating
not switched on long
enough
 Probe heating defective
 Defect in temperature
controller
 Heating connection cable
damaged

Heating sleeve defective

Wait for heating-up time
(approx. 20 min)
 Check probe heating for
proper functioning
Cable Drag
Chain Sam-
ple Gas Line
Temp. Error
Cable drag chain
sample gas line
temp. error

Cable drag chain heating
not switched on long
enough
 Cable drag chain heating
defective

Wait for heating-up time
(approx. 20 min)
 Check heating for proper
functioning
Error Posi-
tion Switch
Probe Ac-
tion
Probe movement
limit switch error

Front and at least one of
the two rear limit switches
for probe movement trig-
gered simultaneously

Check function and position
of limit switches
 Check position of trigger
element
Error 3x
Cleaning
Not Suc-
cessful
Probe H
Probe cleaning failed
after 3x cleaning

Cleaning cycle can no
longer clean probe H ade-
quately

Remove dirt sticking to the
gas inlet
 Clean the filter element
 Check compressed-air sup-
ply and solenoid valves of
probe cleaning system
Error Posi-
tion Switch
Plunger
Action
Plunger movement
limit switch error

Both plunger movement
limit switches triggered
simultaneously

Check function and position
of limit switches