11
2.4.2
Calibration by reference voltage
The feedback module provides a reference voltage of U
Ref
at three testing points. The reference
voltage has a range of 0.1V to 3.2V, which corresponds to 0% and 100% of the stroke.
CH1
6
RM-2
+
-
5 4 3 2 1
CH2
TP (CH2)
TP (CH1)
TP (GND)
Lower limit signal transmitter (CH1)
Upper limit signal transmitter (CH2)
1. Using a voltmeter, measure the voltage
between TP CH1(+) and TP GND(-).
2. Using potentiometer CH1, adjust the
reference voltage in accordance with the
target switch position (see table).
1. Using a voltmeter, measure the voltage
between TP CH2(+) and TP GND(-).
2. Using potentiometer CH2, adjust the
reference voltage in accordance with the
target switch position (see table).
Position %
Reference voltage
Position %
Reference voltage
[%]
[V]
[%]
[V]
0%
0,10
50%
1,57
5%
0,25
55%
1,73
10%
0,41
60%
1,88
15%
0,56
65%
2,04
20%
0,72
70%
2,19
25%
0,87
75%
2,35
30%
1,03
80%
2,50
35%
1,18
85%
2,66
40%
1,34
90%
2,81
45%
1,49
95%
2,97
50%
1,65
100%
3,12
Upper limit value sender
Lower limit value sender
2.5
Malfunction message
If the connection between positioner and feedback module is interrupted, the feedback module
will return a malfunction message signal (20.5 mA).
Содержание DSR 500-1
Страница 18: ...18 Notizen Notes ...
Страница 19: ...19 Notizen Notes ...
Страница 20: ...700 278 078 GFDO_6463_1_2_4 GF Piping Systems Ltd CH 8201 Schaffhausen 2016 GF Piping Systems ...