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Electro-pneumatic positioner TZID
42/18-54 EN
3.4 Commissioning
In the commissioning phase, the positioner is configured, i.e. it is adapted electronically
to the operational data of the actuators or control valves. Two ways are possible:
Commissioning the positioner locally using its operator panel
This method only requires little technical effort. The positioner must be supplied with a
4...20 mA current signal and with compressed air of 1.4...6 bar. Commissioning is in this
case limited to adapting the positioner to the operational data of the actuator or control
valve. Any adjustment that goes beyond this scope requires the method described below.
Commissioning the positioner remotely via a PC with special TZID software
Commissioning through the PC is done via the communication port and a special
adapter. With this method, the full range of the positioner’s adjustment and adaptation
capabilities is available.
These operating instructions only describe commissioning via the built-in operator panel.
Please refer to a separate document for the necessary information about commissioning
the TZID via the communication port and a connected PC.
3.4.1 Adapting the positioner to the actuator
The positioner can be adapted to the operational data of the actuator in the “Autostroke”
mode. In this operating mode, a program is started which determines all relevant data
and transmits them to the positioner. No manual adjustment is required. Refer to the sec-
tion about operating level 2, “Display 2.0 = Autostroke” for details about the Autostroke.
Successful self-adaptation using the Autostroke function requires that the angle of rota-
tion for position feedback is within the permissible range. The range that is actually used
for position feedback can be scanned electronically. Refer to the section about operating
level 2, “Display 2.2 = Position sensor span” for details. Based on a displayable range of
0...100 %, the following requirements must be met:
•
Angle of rotation > 2 % and < 98 %
•
Range > 20 % (High-Low)
If these requirements are not met, the mechanical link converting the movement into an
angle of rotation must be readjusted.
If Autostroke is initialized although the requirements listed above are not met, Autostroke
is aborted automatically and the respective error code (see Appendix ) is shown in the
display.
!
CAUTION
•
When commissioning the positioner, first switch on compressed air
supply and only then apply the 4...20 mA current signal.
•
Before commissioning the TZID positioner, read the necessary infor-
mation about the operating elements on the display and operator
panel and their functions.
Summary of Contents for TZID
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