Setting The Switch-On Delay Time - Siemens SITOP SEL1200 Manual

2.7

Setting the switch-on delay time

For specific loads, it can make sense to sequentially switch-on the outputs in order to reduce
the peak inrush currents, and therefore the load on the power supply. To achieve this, the
individual outputs of the selectivity module can be switched-in with a time delay between one
another in a fixed sequence (output 1 ⇒ 2 ⇒ 3 ⇒ 4 ⇒ 5 ⇒ 6 ⇒ 7 ⇒ 8). The delay time set
between the individual outputs is the same for all of the outputs. The delivery condition is
load-dependent switch on.
Setting the sequential switch-on delay
Figure 2-8
The switch-on delay time is set at selector switches TD1 and TD2
switches "TD1" and "TD2" are in the "0" position (load-dependent switch on delay).
Procedure when setting the delay time:
With the selectivity module in a no-voltage condition, set DIP switches "TD1" and "TD2" to
the required delay time.
The next time that the selectivity module powers up, the outputs are sequentially switched on
corresponding to the selected delay time.
SITOP SEL1200-1400
Manual, 06.2019, A5E46496083-1-76
Selector switch
Outputs switched on depending on the load: The next output is switched on as soon as the
previous output has run-up (at the earliest, after 5 ms).
25 ms delay between the outputs being switched on
200 ms delay between the outputs being switched on
500 ms delay between the outputs being switched on
Description, device design, dimension drawing
2.7 Setting the switch-on delay time
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. When delivered, DIP
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