Siemens SIMATIC ET 200SP Manual page 23

DQ mode
3.2 Parameters/address space
Channel startup delay
Specifies the duration of the startup delay of a channel.
You can set startup delays with values ranging from 100 ms to 10 s. This means the
channels cannot be controlled before the set startup delay has expired.
Configure different startup delays for each channel to decouple the starting currents and thus
reduce the network load.
Startup delays are also in effect when the module is to output substitute values. The startup
delay starts after the module was started and when the load voltage returns.
This means that depending on your process, the initial switch on of lamps is always delayed
by the configured time.
Channel output filter down/up
Specifies the down or up output filter of a channel.
For smooth operation or to increase the interference immunity of your application, use down
or up output filters with values from 500 ms to 60 s.
Quick changes of the filter input values are converted into smoother signal changes at the
filter output. This means, for example, that extreme currents in the heating phase of infrared
sources are limited.
In addition, you can also use output filters to reduce shifts in the zero crossings of the power
supply that can occur in isolating transformers.
This increases the accuracy of the module.
When you have configured a startup delay, the output filter is held at the reset state during
this delay.
Once the startup delay has expired, the output filter starts its linear ramp directly at the value
that was held during the startup delay.
Note that the configured filter times always refer to the process value jumps from 0% to
100% or from 100% to 0%.
This means the settling time of the filter is shorter for smaller jumps.
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②
③
Figure 3-2
22
Power without output filter
Power with output filter (max. slope according to Output filters parameter)
Startup delay
Power trend or average switch-on duration in case of phase control phase-angle
proportional with and without output filter
DQ 4x24..230VAC/2A HF digital output module (6ES7132-6FD00-0CU0)
Manual, 02/2018, A5E42404845-AA