Connection Of The Communication And Control Signals - ABB REACT 2 Quick Installation Manual

15. Connection of the communication and control signals

IN1 IN1 IN2 IN2
Terminal name
BKP
REM
+5V
RS485
METER
RS485 PC (ABB service use
only)
RS485
LOGGER
Terminal name
OUTPUT 1
OUTPUT 2
Terminal name
LAN 1
LAN 2
For further information regarding the configuration and use of the communication and control signals terminal block, please
see the manual
External backup command connection
The REACT2 system is equipped with a BACKUP AC output that can be activated in two different ways (Auto or via external control) settable via web server
user interface.
In case of external control (BKP terminals) selection, backup output is activated when terminal 1 is brought to the same potential as terminal 3 (i.e. positioning
a switch to create a short circuit between the two terminals).
Remote control connection (REM)
The connection and disconnection of the inverter to and from the grid can be controlled through an external control.
The function must be enabled via web server user interface. If the remote control function is disabled, the switching on of the inverter is dictated by the
presence of the normal parameters that allow the inverter to connect to the grid.
If the remote control function is on, besides being dictated by the presence of the normal parameters that allow the inverter to connect to the grid, switching
on the inverter also depends on the state of REM terminals (terminal 2 and terminal 4) on the communication and control signal terminal block
When terminal 2 is brought to the same potential as terminal 4 (i.e. positioning a switch to create a short circuit between the two terminals), the inverter is
disconnected from the grid.
A communication and control service cable that must be connected inside the REACT2-UNO
must pass through:
- the service cable gland
- the cable conduit
It is a M25 service cable gland
(tightening torque 7.0Nm).
METER-485 PC-485 LOGGER-485
CARD CARD CARD
RS485
METER RS485
RS485 LOGGER
PC
44
13
Terminal number
Description of communication and control signal screw terminal block
1, 3 External backup command
2, 4 Remote external ON/OFF command
5, 6 Auxiliary 5V positive
7
+T/R RS485 METER (connected on the external meter connector
9
-T/R RS485 METER (connected on the external meter connector
11
Reference (RTN) RS485 METER (connected on the external meter connector
8 +T/R of the RS485 PC communication line (ABB service use only)
10 -T/R of the RS485 PC communication line (ABB service use only)
12 Reference (RTN) of the RS485 PC communication line (ABB service use only)
13, 14 +T/R of the RS485 LOGGER communication line
15, 16 -T/R of the RS485 LOGGER communication line
17, 18 Reference (RTN) of the RS485 LOGGER communication line
19, 20 Ground terminal
Terminal number
Description of multifunction relay screw terminal block
N.C. "Normally closed" terminal of multifunctional relay (OUTPUT 1)
C "Common" terminal of multifunctional relay (OUTPUT 1)
N.O. "Normally open" terminal of multifunctional relay (OUTPUT 1)
N.C. "Normally closed" terminal of multifunctional relay (OUTPUT 2)
C "Common" terminal of multifunctional relay (OUTPUT 2)
N.O. "Normally open" terminal of multifunctional relay (OUTPUT 2)
Terminal number
Description of RJ45 (LAN) connectors
RJ45 LAN Ethernet connector
RJ45 LAN Ethernet connector
13 .
44
and can take a cable with a diameter of 10 mm to 17 mm
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PC-485 LOGGER-485
METER-485
CARD CARD
CARD
RS485
METER RS485
LOGGER
RS485
PC
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