ABB SCK - Page 170

170 Operating instruction SCK Gas Sampling System OI/SCK-EN Rev. E
Proceed as follows to check the EMERGENCY STOP switch -J75 (note: two
people should perform this procedure):
Step
Procedure
1
Switch system to manual mode on the touchscreen (if this has
not already been done).
Path: Operation ► Automatic on / off
2
Retract gas sampling probe out of the kiln.
Path: Operation ► Probe ► Probe Action ► Retract
WARNING! Actuating the service switch moves the probe to its
end position. Do not stand in the area of travel of the probe or
probe carriage until the probe has reached its end position.
3
When the probe is one meter from the rear end position: Press
EMERGENCY STOP switch -J75 .
Target requirement:
The probe retractor must interrupt movement immediately.
4
Unlock EMERGENCY STOP switch -J75 by turning the back ring
in the direction of the arrow.
5
Turn service switch -S31 on the control cabinet to the ON posi-
tion.
WARNING! Actuating the service switch moves the probe to its
rear end position. Do not stand in the area of travel of the
probe or probe carriage until the probe has reached its end
position.
Result: The gas sampling probe is retracted to its rear end
position, the controller displays the Maintenance message.
6
Turn service switch -S31 back to the initial position ( OFF ).
7
In the event of irregularities, shut down the sampling system,
secure against start-up (e.g. with a padlock), and have it re-
paired by trained, expert personnel.
8
If a second EMERGENCY STOP switch is present, perform these
instructions analogously for this switch.
9
Turn service switch back to OFF position and insert gas sam-
pling probe again using the controller.
WARNING! Gas sampling probe moves into the kiln. Do not
stand in the area of travel of the gas sampling probe or probe
carriage until the probe is completely inserted into the kiln
and the warning lamps go out.
Instructions:
checking the
EMERGENCY STOP
switch