User manual

Connecting the inputs
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Increasing the input current
The following input circuit can be used in order to prevent
interference and also when using two-wire proximity switches:
Figure 12: Increasing the input current
A resistor can be connected in series with the circuit shown in
order to restrict the inrush current.
Figure 13: Limitation of the input current with a resistor
L
N
LNN
I1
100 nF/275 V h
F1
J
When using a 100 nF capacitor the drop-off time of the input
increases by 80 (66.6) ms at 50 (60) Hz.
L
N
LNN
I1
100 nF/275 V h
1 kO
F1
EZ500_700.book Page 41 Tuesday, May 3, 2005 5:15 PM