Table of Contents
Advertisement
787-3861/800-000
4.4 Capacitive Load
The product can be used to switch on high capacitive loads. The resulting high inrush
currents put a strain on the power supply. The power supply must be able to deliver the
maximum required power without the voltage falling below 20 VDC.
The capacity value to be reached depends on fundamental factors, such as the power
supply already mentioned, the cable length and the conductor cross-section, as well as
the properties of the load that is to be powered.
For some WAGO power supply units, possible load capacities have been determined em-
pirically (see
Note
Measures for capacitive loads without protection against reverse discharge
Faulty tripping of channels that are connected in parallel may occur on the supply side
with capacitive loads that are not protected against reverse discharge.
•
In this case, WAGO recommends taking suitable measures (e.g., a diode or MOS-
FET) to decouple the capacitive load.
4.5 On Delay
As soon as a minimum input voltage is present, the channel is activated with a time de-
lay. This requires the channel to be switched on before the input voltage is switched off.
Note
Note the behavior when the input voltage is restored!
The circuit breaker channel switches to the status it had before the input voltage was
switched off. A channel that was manually switched off tripped is not automatically
switched on.
The channel is randomly activated within 0 ... 500 ms with a time delay. If multiple elec-
tronic circuit breakers are connected to one power supply, this avoids larger current
spikes at switch-on.
4.6 Control Input S1 and Signal Output S2
Control Input S1
A signal (15 ... 30 V) between the control input and GND allows the status of the elec-
tronic circuit breaker to be changed. Which status is produced depends on the signal du-
ration and previous status of the ECB.
Signal
Signal 1:
Reset channel.
Product manual | Version: 1.0.0
Electronic Circuit Breaker
8 Power Supplies
[} 34]).
Duration
500 ms ... 1500 ms
Table 16: Control Input S1
State
Previous Status
Status 1, 2 or 3 (depend-
Status 6 or 7:
ing on load current):
Channel tripped.
Channel switched on.
Functions
19
Advertisement
Chapters
Table of Contents
