8 Maintenance
8.1 Behaviour in case of trouble
The unit is maintenance-free. In case of trouble, the following points must be checked.
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The unit is in on-line mode.
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The supply voltage is connected correctly with correct voltage and frequency.
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All connections are in correct condition.
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Sensors and motor actuators operate correctly.
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The used engineering is the required one and is O.K.
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The unit is configured for the required operating mode.
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The adjusted parameters generate the required effect.
If the unit does not work perfectly after these checks, shut it down and replace it. A defective unit can be sent to the
supplier for repair.
8.2 Shut-down
Switch off the supply voltage completely and protect it against accidental operation. As the unit is mostly connected in
the same signal loop with other instruments, measures against the occurrence of undesired operating conditions due to
the switch-off effects must be taken.
8.3 Cleaning
Housing and front panel can be cleaned using a dry, lint-free cloth. Do not use solvents or cleaning agents!
8.4 Further information
Order no.
For a structured single-channel controller
operating instructions 9499 040 51001
For a structured cascade controller
operating instructions 9499 040 51101
For a structured flow controller
operating instructions 9499 040 51201
For a structured program controller
operating instructions 9499 040 51301
For a structured heat energy counter
operating instructions 9499 040 51401
For a structured flow calculator
operating instructions 9499 040 51501
For the engineering tool
operating instructions 9499 040 45741
For the digital interface (ISO1745)
interface description 9499 040 45111
For the PROFIBUS
interface description 9499 040 52711
For the INTERBUS
interface description 9499 040 57011
Engineering manual
manual (in preparation)
9499 040 50611 Maintenance
25 Behaviour in case of trouble
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