16
SP 0, SPR 0
output current signal rate measured on the terminals 81-82 to 20mA.
•
Check the output signal of the converter in the both limit positions, and repeat the procedure if
needed..
Note:
The output signal of 4-20mA can be adjusted at the range from 75 up to 100% of the rated stroke
stated
on the actuator
′
s nameplate. At values less than 75% the value 20mA is reduced proportionally.
EPV – 3-wire version (Fig. 7)
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 or 5 mA
•
in the position „closed“................................... 0 mA
or4 mA
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 (Fig. 7). The used
transmitter resistance is
2000
Ω
or 100
Ω
.
•
Switch the converter
′
s power supply on.
•
Turn the adjusting trimmer ZERO (Fig. 7) to adjust the output current signal rate measured on the
terminals 81-82 to 0 mA or 4mA.
•
Set the actuator to the position „open“.
•
Turn the adjusting trimmer GAIN (Fig. 7) to adjust the output current signal rate measured on the
terminals 81-82 to 20mA or 5 mA..
•
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.
3.4 Adjustment of position controller (Fig. 8)
The built-in position controller REGADA of new generation is a user-friendly control system to
control actuators with an analogue signal. The controller takes advantages of high-power RISC
processor MICROCHIP to perform all functions. It provides also continuous automotive diagnostics of
the system, error messages as well as number of relay switching and number of controller's operation
hours. Placing an analogue signal onto the input terminals of the terminal board 86/87 (GND, -) and 88
(+) causes that the EA output is reset.
Required parameters and functions can be programmed using function buttons SW1 - SW2 and LED
diodes D3 - D4 placed directly on the controller, see Table 2.
[Fig. 7]
Summary of Contents for SP 0
Page 27: ...SP 0 SPR 0 25...
Page 28: ...26 SP 0 SPR 0...
Page 29: ...SP 0 SPR 0 27...
Page 30: ...28 SP 0 SPR 0...
