UM EN FLX ASI SYS PRO INST - Onlinecomponents.com

UM EN FLX ASI SYS PRO INST
4.3.11 Setting the Sensor Power Supply
You can specify whether the sensor is to be supplied from the AS-i circuit or from an external
power supply.
For the ASI IO ME DI 4 AB and ASI IO ME DIO 4/3 modules, proceed as follows:
• To release the upper part, press on both tabs (1) one after the other using a screwdriver.
• Pull the upper part towards you until you can feel some resistance.
Opening the module
ASI IO ME DI 4 AB
ASI IO ME DIO 4/3 AB
Setting the switch
ASI IO ME DI 4 AB
ASI IO ME DIO 4/3 AB
Figure 4-35
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Opening the module
• If you are using an external sensor power supply (U EXT = 12 V DC to 30 V DC) set the
switch to the "EXT" position.
• If you want to supply the sensor from the AS-i circuit set the switch to the "INT"
position. The green "INT" LED lights up.
CAUTION: Use a PELV power supply
The auxiliary voltage for the output supply must be taken from an isolated power supply
(PELV according to IEC 60364-4-41).
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Figure 4-36
Setting the switch
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