Regada UP 0, Installation, Service And Maintenance Instructions, Page: 30 / 59

28 UP 0, UP 1, UP 2, UP 2.4, UP 2.5
4.4.2 EPV – 3-wire version (Fig. 6, 6a)
The resistive transmitter with the converter is in the plant
adjusted to have the output current signal metered on the
terminals 81-82 as follows:
•
in the position ”open”….…20 mA resp. 5 mA resp. 10 V
•
in the position ”closed”……0 mA resp. 4 mA resp. 0 V
according to the specified version of the converter.
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 , resp.
0%-100% (Fig. 6, 6a). The used transmitter resistance is 2000
Ω
or
100
Ω
.
•
Switch the converter
′
s power supply on.
•
Turn the adjusting trimmer ZERO , resp. A to adjust the output current
signal rate measured on the terminals 81-82 to 0mA resp.4 mA, resp.
0 V.
•
Set the actuator to the position ”open“.
•
Turn the adjusting trimmer GAIN , resp. B to adjust the output current
signal rate measured on the terminals 81-82 to 20mA, resp. 5 mA,
resp. 10V.
•
Check the output signal of the converter in the both limit positions, and
repeat the procedure if needed.
Note:
The output signal of (0-20mA, 4-20mA or 0-5mA - according to the
specification) can be adjusted at the range from 85 up to 100% of the
rated stroke stated on the actuator
′
s nameplate. At values less than 85%
the value of the output signal is reduced proportionally.
4.5 Adjustment of Capacitive Transmitter CPT1/A (Fig.7)
The chapter describes adjustment of the capacitive transmitter to the specified parameters (standard values
of output signals) in case they are reset. The capacitive transmitter (95) serves as a position transmitter of
electric actuators with unified output signal of 4÷20 mA in electric actuators
UP X.X , or as a feedback of a
position controller, or if required it functions also as a remote position transmitter of electric actuators with unified
output signal of 4÷20 mA in electric actuators
UP X.X with controller.
Before adjusting the transmitter, terminal position switches S3 and S4 must be adjusted.
Note1: With the version with controller; at using the output signal, this signal isn’t galvanic insulated from the
input signal !
Note2:
In case that reversed output signals are needed (in the position ”OPEN” minimum output signal) contact
personnel of service centres.
The capacitive transmitter CPT1/A is adjusted by the producer to the fixed operation angle according to the
order and wired according to the wiring diagrams placed into the cover. Check the power supply of the user after
connecting to terminal of the terminal board before the transmitter is electrically checked. Adjustment of the
capacitive transmitter can be performed when the position switches are adjusted. The adjustment is performed
with the power supply of 230 V/50 Hz and ambient temperature of 20
±
5°C.
The following versions of electric actuators with built capacitive transmitters can be specified:
A) The version without any power supply (2-wire version)
B) The version with a power supply (2-wire version)
C) The version CPT as a feedback to the position controller for EA UP X.X with controller
Fig. 6
Fig .6a