![ABB REACT-3.6-TL Скачать руководство пользователя страница 93](http://html.mh-extra.com/html/abb/react-3-6-tl/react-3-6-tl_product-manual_4163093.webp)
- 93 -
000566AG
5 - Installation
+
5V output connection
On the communication and control signal terminal block
21
there is
auxiliary voltage of +5V.
The maximum absorption permitted from this auxiliary power supply
voltage is 100 mA.
C
onnection of RS485 M-B (Modbus) serial communication line
The RS485 M-B serial communication line on the communication and
control signal terminal block
21
is reserved for the connection of the
inverter to monitoring devices that communicate with the Modbus public
communication protocol. On the communication and control signal terminal
block
21
there are two connection points for each serial line signal (+T/R,
-T/R and RTN) so as to be able to make a daisy-chain connection ("in-out")
of multiple inverters.
Connection of a monitoring system to the RS485 M-B communication
line consists of first connecting all the units in the chain in the “daisy-
chain” (“in-out”) configuration, respecting corresponding signals, and
then activating the communication line termination resistance in the last
element in the chain by setting the switch for RS485 M-B line termination
20
(to the ON position).
The communication line must also be terminated on the first element of the chain which
usually corresponds to the monitoring device.
RS485 M-B
MONITORING
SYSTEM
Modbus
REACT
POWER A
LARM GF
I
ESC
UP D
OWN E
NTER
REACT-UNO
REACT-B
ATT
REACT
POWER A
LARM GF
I
ESC
UP D
OWN E
NTER
REACT-UNO
REACT-B
ATT
REACT
POWER A
LARM GF
I E
SC U
P D
OWN E
NTER
REACT-UNO
REACT-B
ATT
20
Скачано
с
сайта
интернет
магазина
https://axiomplus.com.ua/