ABB SCK, Системное руководство

Страница: 217 / 244

42/23-81 EN Rev. 4 System Manual SCK Gas Sampling System 217
Error
display
Plain text (not stored
in controller)
Cause Measures
Error Com-
pressed Air
Emergency
Tank Minimum compressed-
air emergency tank
pressure not adequate
 If the central compressed-air
supply is also faulty, first
remedy the cause for failure
of the central compressed-
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 setting
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 temper-
ature too low
 At start-up probe heating not
switched on long enough
 Probe heating defective
 Defect in temperature con-
troller

Heating connection cable
damaged
 Heating sleeve defective
 Wait for heating-up time (ap-
prox. 20 min)
 Check probe heating for prop-
er functioning
Probe Heat-
ing Temp.
MAX Probe heating temper-
ature too high
 Probe heating overheating  Check PT100 sensor
Probe Heat-
ing Temp.
MIN Probe heating temper-
ature too low

At start-up probe heating not
switched on long enough
 Probe heating defective
 Defect in temperature con-
troller
 Heating connection cable
damaged
 Heating sleeve defective

Wait for heating-up time (ap-
prox. 20 min)
 Check probe heating for prop-
er 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 (ap-
prox. 20 min)
 Check heating for proper
functioning
Error Posi-
tion Switch
Probe Action Probe movement limit
switch error
 Front and at least one of the
two rear limit switches for
probe movement triggered
simultaneously
 Check function and position of
limit switches

Check position of trigger ele-
ment
Error 3x
Cleaning
Not Suc-
cessful
Probe H Probe cleaning failed
after 3x cleaning
 Cleaning cycle can no long-
er clean probe H adequately
 Remove dirt sticking to the gas
inlet
 Clean the filter element

Check compressed-air supply
and solenoid valves of probe
cleaning system
Error Posi-
tion Switch
Plunger
Action Plunger movement
limit switch error
 Both plunger movement limit
switches triggered simulta-
neously
 Check function and position of
limit switches