Regada SO 2-Ex, Инструкции по установке, обслуживанию и техническому обслуживанию

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20 SO 2-Ex
4.3 Adjustment of resistant transmitter (Fig.4)
The resistant transmitter is in the EA SO 2-Ex used to function as a remote position indicator; in the EA
SO 2 – Ex to function as a feedback in the position controller.
Before the resistant
transmitter adjustment the position
switches have to be adjusted.
Adjustment consists in setting of
the resistance in the defined limit
position of the EA.
Notes:
In case that the EA is unused within
the complete operating speed
range following the stroke selected
on the particular stroke line, the
“Open” limit position resistance
value will un-dergo proportional
reduction.
In the EA SO 2-Ex with controller
2000
Ω
resistant transmitters are
used. In the other cases if the
resistant branch is lead to the
terminal board the resistance of the transmitters is according to the customer's specification.
To adjust the transmitter follow these steps:
Loosen the fixing screws (9) of the transmitter holder and push the transmitter out of mesh.
Connect a meter for resistance measuring to the terminals 71 and 73 of the EA
SO 2-Ex terminal board, or to
the terminals 7 and 10 of the EA SO-Ex with controller terminal board.
Put the actuator to the position ”closed” (with the handwheel, or with the local electric position control until the
corresponding position switch S2 or S4 switches).
Rotate the transmitter shaft (11) until resistance of
≤
5% of the nominal transmitter resistance can be read on
the meter in case of EA SO 2-Ex , and 3 up to 5% of the nominal transmitter resistance in case of EA SO 2-Ex
with controller with EPV , i.e. with the resistant transmitter with the converter PTK1.
In the position put the transmitter to mesh with the drive wheel and fix the fixing screws on the transmitter
holder.
Please check the resistance value in both of the final positions and in case of need repeat the procedure.
Once the device is adjusted in a correct way disconnect the meter from the terminal.
11
Fig.4
9
5