Siemens DQ 4x24VDC/2A HS User Manual page 22

Parameters/address space
4.4 Pulse width modulation
The following values apply when determining the pulse/pause duty factor of the pulse width
modulation:
Table 4- 2 Determining the pulse/pause duty factor of the pulse width modulation
Time period parameter
0.20 ms
0.40 ms
0.93 ms
1.33 ms
4.27 ms
10.67 ms
21.33 ms
34.13 ms
59.73 ms
Example
When you configure a channel with 5000 Hz (≙ 200 μs) and the user program writes the
value 3 to the output word of the channel, this value is converted to 0 by the module: The
channel is permanently 0.
"Diagnostics: Overflow" parameter
You use the "Diagnostics: Overflow" parameter to enable the diagnostics if the permitted
value range of the duty factor is exceeded, which means an output value > 1000 from the
user program is written to the output word of the channel.
"Substitute value duty factor" parameter
You use the "Substitute value duty factor" parameter (0 to 1000) to specify the pulse/pause
duty factor of the pulse width modulation in the case of a CPU STOP.
Derating
See the information on derating of the module in the section Derating of the
DQ 4x24VDC/2A HS (Page 36).
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Frequency
5000 Hz
2500 Hz
1071 Hz
750 Hz
234 Hz
94 Hz
47 Hz
29 Hz
17 Hz
Output value in the user
program (‰)
0...9
10...990
991...1000
0...4
5...995
996...1000
0...2
3...997
998...1000
0, 1
2...998
999, 1000
0...1000
0...1000
0...1000
0...1000
0...1000
Digital output module DQ 4x24VDC/2A HS (6ES7132-6BD20-0DA0)
Pulse/pause duty factor at
output terminal DQ (‰)
n
0
10...990
1000
0
5...995
1000
0
3...997
1000
0
2...998
1000
0...1000
0...1000
0...1000
0...1000
0...1000
Manual, 03/2015, A5E34944434-AA