- 87 -
ISIS
- 331260D
revision02
DE
FR
EN
7.4- Interference suppression of the electrical
installation and protection of the power supply
In the event of inductive loads on the receiver relay outputs
(contactor coils, solenoid valves or electro-brakes), interference
suppression devices such as capacitors, RC circuits, diodes,
etc. must be placed directly at the terminals of the controlled
components using the shortest possible connections.
A draw resistor should also be used on the controller inputs.
Examples of protection system to be used :
7.5- Minimum and maximum current of relay outputs
Be sure not to exceed the minimum and maximum characteristics
speci
fi
ed in «
Receiver technical characteristics
» section, by
installing, if necessary, an additional load or intermediate relays
(auxiliary contacts in electrical control cabinet for power control,
for example).
AC
Receiver output terminal strip
DC
+
-
DC
R
+
+
-
-
Draw resistor R
(R=Vdc/Imin(100mA))
Output on AC relay
(RC circuit )
Output on DC relay
(freewheel diode)
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