X20 system modules • Digital output modules • X20DO2623
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X20 system User's Manual 3.10
4.15.5.8 Integrated full-wave control
Full-wave control is used to control power for electrical power consumers that are operated with AC voltage. Tem-
perature control is a typical application
Unlike phase-angle control, the sine wave oscillation form of the mains voltage is not changed during full-wave
control. This significantly reduces system perturbation.
The output voltage (channel) is switched on and off at a certain ratio. This switches the multi-cycle packets. A
multi-cycle packet consists of a number of complete sine waves throughout a cycle. The relationship between
the power-on duration and the cycle duration results in the desired effect of reduced power consumption by the
connected power consumer.
With the full-wave control that is integrated in the module, a maximum of 24 full waves can be provided on the
outputs per cycle. Control takes place in 4% steps.
Settings
Full waves
SW%
%
1
2
3
4
5
6
7
8
9
10
11
12 13 14 15 16 17 18 19 20 21 22 23 24
0
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4
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8
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12
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16
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20
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24
25
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28
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32
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36
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40
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44
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48
50
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52
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56
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60
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64
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68
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72
75
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76
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80
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84
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88
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92
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96
100
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Table 346: - Full-wave control in 4% steps
Example of full-wave control (8%):
U
Channel
1 cycle
(24 full waves)
t
Figure 326: Example of full-wave control (8%)
Summary of Contents for X20 System
Page 2: ......
