EKHO EK-WL8-EXP/AU Panduan Memulai Cepat - Halaman 4

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EKHO EK-WL8-EXP/AU Panduan Memulai Cepat
EK-WL8-EXP/AU
WIRELESS EXPANDER MODULE
STFV.425551.030-AU-UM rev. 17
20.04.2020
Page 4 of 7
CONNECTORS
POWER
UNUSED
INPUT
-
+
AC DC
POWER
Vcom
NOTE Other terminal blocks that are not described (marked "UNUSED") do not affect
the operation of expander and are not used.
POWER
The device can be powered via an external power supply input.
Use any 12V or 24V power supply and connect it to the +/- inputs on the device.
ATTENTION Power supply should have an output current limit of 8 Amperes.
The AC and DC inputs are used for monitoring the state of the external power sup-
1
ply with backup (this options should be enabled in EK-WL8-TRH menu
). An exter-
nal power supply input in accordance with AS ISO 7240.4.
The expander measures the voltage levels between "–" and each of these inputs. A
fault event will be generated if this value drops lower than 10.5 V. These inputs can
be directly connected to the open collector outputs on the power supply. In other
cases, you will need to provide power to these inputs through a normally closed fault
relay on the power supply. The AC and DC inputs monitoring can be switched off
translator menu.
1
Main and Backup power monitor modes should be set "ON"