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WARNING
Water in compressed air line
Device damage and possibly loss of type of protection. The factory setting for the purging air selector is "IN". In the "IN"
position, water from the compressed air line may enter the device from the pneumatics during initial commissioning.
Before commissioning, make sure that no water is present in the compressed air line.
•
If you cannot be sure that there is no water in the compressed air line:
Set the purging air selector to "OUT". In this way, you prevent water from the compressed air line from penetrating the
•
device.
Only set the purging air selector to "IN" again when all water has been discharged from the compressed air line.
•
CAUTION
Loss of type of protection
Damage to device if the enclosure is open or not properly closed. The type of protection specified on the nameplate or in
Technical data (Page 38) is no longer guaranteed.
Make sure that the device is securely closed.
•
WARNING
Commissioning and operation with pending error
If an error message appears, correct operation in the process is no longer guaranteed.
Check the gravity of the error.
•
Correct the error.
•
If the error still exists:
•
–
Take the device out of operation.
–
Prevent renewed commissioning.
5.1.1
Safety notes for operation with natural gas
When operating the positioner with natural gas, you must follow and adhere to the following safety notes:
WARNING
Operation with natural gas
1. Only positioners and option modules which are connected to power supplies with type of protection "Intrinsic safety,
protection level [ia]" may be operated with natural gas.
2. Do not operate the positioner with natural gas in closed spaces.
3. Natural gas is continuously blown off in the servo-drive depending on the model. Special care must therefore be taken
during maintenance activities near the positioner. Always ensure that the immediate surroundings of the positioner are
adequately ventilated.
The maximum values for ventilation are listed in section "Natural gas as actuator medium (Page 43)".
4. The mechanical limit switch module must not be used when operating the positioner with natural gas.
5. Depressurize the devices operated with natural gas adequately during maintenance activities. Open the cover in an
explosion-free atmosphere and depressurize the device for at least two minutes.
Note
Quality of natural gas
Only use natural gas which is clean, dry and free from additives.
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SIPART PS2 (6DR5...)
A5E03436620-AB, 01/2017
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