Regada UP 0, Installation, Service And Maintenance Instructions, Page: 31 / 59

UP 0, UP 1, UP 2, UP 2.4, UP 2.5 29
A.) Adjustment of the Capacitive Transmitter without any Power Supply
Before connecting check the power supply. The measured voltage should be in range from 18 up to 28
V DC.
The voltage of the power supply must not be in any case higher than 30 V DC . The transmitter can be
irreversibly damaged!
While checking or adjusting the output signal of 4÷20 mA follow these steps:
•
Connect a mA meter of precision class 0,5 and loading resistance lower than 500
Ω
serially with the
transmitter (pole “-“; terminal 82)
•
Put the actuator to the
position
”CLOSED”, the
signal value should
decrease.
•
Check the signal value for
the position ”CLOSED” (4
mA).
•
Tune the signal with
loosening the fixing screws
(15) and turning the trimmer
(10) until the required value
of 4 mA is reached. Tighten
the fixing screws.
•
Put the actuator to the
position ”OPEN”, the signal
value should raise.
•
Check the signal value for
the position ”OPEN” (20
mA).
•
Tune the signal with turning the trimmer (20) until the required value of 20 mA is reached.
•
Check the signal value for the position ”CLOSED” and then for the position ”OPEN”.
•
Repeat the procedure until the change from 4 to 20 mA is reached with deviation less then 0,5 %.
•
Disconnect the meter and lock the screws with a varnish.
B.) Adjustment of the Capacitive Transmitter with the Power Supply
1.) Check the power supply: 230 V AC, resp. 24 V AC (according to version) ±10%, on the terminals 1, resp. 60
and 61
2.) While checking or adjusting the output signal of 4÷20 mA follow these steps:
•
Connect a mA meter of precision class 0,5 and loading resistance lower than 500
Ω
on the terminals 81, 82.
•
Follow the procedure described in the previous chapter A.
The user has to arrange grounding of the 2-wire circuit of the capacitive transmitter to the electrical
ground of a joined controller, computer, etc. The grounding should be performed only in one place in
any part of the circuit outside the electric actuator!
C.) Adjustment of the Capacitive Transmitter Served as a Feedback of the Position Controller (EA UP X.X
with controller )
While checking or adjusting the output signal of 4÷20 mA follow these steps:
•
Disconnect the circuit on the terminals 81 and 82 removing the jumper.
•
Connect power supply to the terminals 1 and 61.
•
Disconnect the control signal from the terminals 86/87 and 88.
•
Put the actuator to the direction "OPEN" or "CLOSE" with the handwheel or by connecting power supply to
the relevant terminals for the direction "OPEN", or for the direction "CLOSE".
•
Connect a mA meter of precision class 0,5 (e.g. digital) and loading resistance lower than 500
Ω
on the
terminals 81,82.
•
Follow the procedure for the version without any power supply described in the previous chapter A.
•
Having the transmitter adjusted put the jumper again on the terminals 81 and 82 in case that the output
signal wont be used (the circuit through the terminals 81 and 82 should be closed).
•
Connect the control signal to the terminals 86/87 and 88.
The user has to arrange grounding of the 2-wire circuit of the capacitive transmitter to the electrical
ground of a joined controller, computer, etc. The grounding should be performed only in one place in
any part of the circuit outside the electric actuator!
!
!
Fig.7
15
20
10
!