Connection Of Terminals To The Control Board - Carrier 50FC User Manual

14 - CONECTIONS

14.2. Connection of terminals to the control board

Connection of the Graphic terminal (standard)
The terminal can be installed at a maximum distance of 500 metres
from the control board.
● Up to 50 metres, it can be connected directly with telephone wire.
● From 50 to 200 metres, it is necessary to use the TCONN bypass
cards and AWG 20/22 shielded cable with 2 twisted pairs.
200 m
TCONN
RJ12
0,8 m
Graphic terminal
● From 200 to 500 metres, it is necessary to use the TCONN bypass
cards, AWG 20/22 shielded cable with 1 twisted pair and external
20...30Vdc (150 mA) power supply.
Graphic terminal
Confi guration:
To ensure communication between the Graphic terminal and the
control board, the terminal must be confi gured with address 16.
In the event of a terminal supplied separately, this is not sent
addressed and the following procedure must be carried out:
1) Simultaneously press the
2) On the screen accessed, set address 16 in:
Display address setting.
TCONN
FieldBus1
FieldBus2
/ BMS
Display port1
"50FC"
/ BMS
Display port2
Ethernet
+5VR GND+Vdc
pLAN - to next TCONN by-pass card
AC/DC
converter
AWG20/22
1 twisted pair
20-30Vdc
- +
RJ12
TCONN
230Vac
J14 y J15 in 2-3
Graphic terminal in the left connector
+ + keys.
Connection of the User terminal (optional)
The terminal can be installed on the RS485 Filed-bus at a maximum
distance of 100 metres from the control board.
The connection requires the following:
● Power supply at 230Vac 50/60Hz (L&N): 2 wires (section 0.5 at
1.5 mm ).
2
Note: The power supply of the electrical cabinet (230 V) must be
used for terminal power.
● Communication with the board (RX+/TX+ & RX-/TX-): shielded
cable type AWG20 or AWG22 with 1 braided pair + drainwire +
shielding (e.g., model BELDEN 7703NH).
Cable of Belden
7703NH type
User terminal
Important: It is recommended to insert an electrical resistance of
120Ω, between connectors TX+ and TX- of the board output and
on the fi nal component of the RS485 network, to avoid potential
problems of communication.
Confi guration:
To ensure communication between the User terminal and the control
board, the terminal must be confi gured with address 10 and speed
19200 bps.
The terminal is sent addressed, and on the power up, the screen
should display the fi rmware version "1.1" on the power up and, then,
the " " symbol. The terminal will be fully operational after a
init
few seconds.
In the unlikely event of a communications failure the screen will
display " ". Please make sure to check connections and the
Cn
fi rmware version.
Rx-/Tx-
GND
Rx+/Tx+
Shielding
Tx-
Tx+
FieldBus1
GND
FieldBus2
/ BMS
Display port1
"50FC"
/ BMS
Display port2
Ethernet
+5VR GND+Vdc
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