bihl+Wiedemann AS-i/Modbus Gateway, User Manual, Page: 15 / 60

AS-i/Modbus Gateway Connections, Displays and Operating Keys
Subject to reasonable modifications due to technical advances Copyright Bihl+Wiedemann, Printed in Germany
Bihl+Wiedemann GmbH · D-68199 Mannheim · Tel. +49-621-339960 · Fax +49-621-3392239 · Internet http://www.bihl-wiedemann.de
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4.1.3 Single Masters in IP20 with power supply N
At the bottom of the unit there are 10 terminals for the power supply and the AS-i net-
work. The jumper settings (J+, J-) decide whether AS-i is powered by a separate AS-i
power supply or by the power supply that also provides the AS-i master.
The terminals have the following functions:
+ "AS-i +", Actuator Sensor Interface, positive terminal
This terminal is connected internally with the center contact of jumper "J+".
- "AS-i -", Actuator Sensor Interface, negative terminal
This terminal is connected internally with the center contact of jumper "J-".
24V Master power supply, positive terminal (18 - 31.6 V DC)
0V Master power supply, negative terminal
GND Ground terminal, used for better EMC.
Should be connected with a short wire to machine GND.
Connection samples for the AS-i power supply:
In the wiring schemes above the current through the AS-i master
must not exceed 5 A.
AS-i Master
max. 10 A
PELV according to EN 60950
(Protective extra low voltage)
AS-i
power
supply
-
+
AS-i Slave
-
+
AS-i Slave
-
+
AS-i Master
max. 5 A
PELV according to EN
60950 (Protective extra
low voltage)
AS-i
power
supply
-
+
AS-i Slave
-
+
AS-i Slave
-
+
AS-i Master
AS-i
power
GND 24V 0V + -
J+ J-