Regada SP 0, Инструкции по установке, обслуживанию и техническому обслуживанию

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SP 0, SPR 0 15
3.2 Adjustment of resistant transmitter (Fig.5)
The resistant transmitter is in the EA SP used to function as a remote position indicator; in the
EA SPR 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.
Resistant transmitter does not need adjustment, because of self-adjustment by adjusting
actuator to both end positions. Transmitter is not possible set up to other operating angle, than is
shown on name-plate of actuator.
Adjustment consists in setting of the resistance in the defined limit position of the EA.
Notes:
1. 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.
2. In the EA SPR 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 terminal board,
or to the terminals 7 and 10 of the EA SPR terminal board.
•
Put the actuator to the position “closed“ (with the handwheel, or
with the local electric position control until the corresponding
position switch S4).
•
Rotate the transmitter shaft until resistance of
≤
5% of the nominal
transmitter resistance can be read on the meter in case of EA SP ,
and 3 up to 7 % of the nominal transmitter resistance in case of
EA
SPR, 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.
3.3 Adjustment of the Electronic Position Transmitter (EPV) - the Resistive
Transmitter (Potentiometer) with the Converter PTK 1
EPV – the 2-wire version (Fig. 6)
The position transmitter with the converter PTK1 is in the plant adjusted to have the output
current signal on the terminals 81-82 as follows:
•
in the position “open“ .............................. 20 mA
•
in the position “closed“ ..............................4 mA
If the transmitter requires a new adjustment follow these
steps:
•
Put the actuator to the position “closed“ and switch
the power supply off.
•
Adjust the resistive transmitter according to the
previous chapter. The resistance is to be metered on
the terminals X-Y (Fig. 6). The used transmitter
resistance is
100
Ω
.
•
Switch the converter
′
s power supply on.
•
Turn the adjusting trimmer ZERO (Fig. 6) to adjust
the output current signal rate measured on the
terminals 81-82 to 4mA.
•
Set the actuator to the position “open“.
•
Turn the adjusting trimmer GAIN (Fig. 6) to adjust the
Fig.5
Fig.6