Regada SP 1-Ex, Инструкции по установке, обслуживанию и техническому обслуживанию

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SP 1-Ex 17
4.3 Adjustment of resistant transmitter (Fig. 4)
The resistant transmitter is in the EA SP 1-Ex used to function as a remote position indicator;
in the EA SP 1-Ex with controller to function as a feedback in the position controller and if needed
also in the position of a remote resistant position indicator. 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 not used in the whole stroke range given on the nameplate, the resistance in the limit
position "open" is proportionally reduced.
In the EA
SP 1-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 SP 1-Ex terminal board, or to the terminals 7
and 10 of the EA SP 1-Ex with controller terminal board.
•
Put the actuator to the position "closed“ (with the hand wheel, or
with the local electric position control until the corresponding
position switch S2 or S4 switches).
•
Rotate the transmitter shaft until resistance of
≤
5% of the nominal
transmitter resistance can be read on the meter in case of EA
SP 1-Ex , or 3 up to 7% of the nominal transmitter resistance in
case of EA SP 1-Ex with controller, or in case of EA SP 1-Ex
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.
•
Disconnect the meter from the terminal board.
Fig.4