Siemens SIPART PS2 6DR5 Serie Notice De Service page 34

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:
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– 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 48)".
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.
5.2 Overview
Note
During the initialization process, the operating pressure must be at least one bar more than that required to close or open
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the valve. However, the operating pressure should not be greater than the maximum permissible operating pressure for
the actuator.
General information about commissioning
1. After installing the positioner on a pneumatic actuator, you must supply electric and pneumatic auxiliary power to it.
2. The positioner is in the "P manual mode" before initialization. At the same time, "NOINI" blinks in the lower line of the
display.
3. Position feedback: You can adjust the range of position detection using the friction clutch if necessary.
4. Adjust the positioner as per the respective actuator with the help of the initialization process and by setting the
parameters. If required, use the "PRST" parameter to cancel the adjustment of the positioner on the actuator. The
positioner is again in the "P manual mode" after this process.
Types of initialization
You can initialize the positioner as follows:
● Automatic initialization:
during automatic initialization, the positioner determines the following one after the other:
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SIPART PS2 (6DR5...)
A5E03436620-07, 10/2015