Toshiba TCB-IFCG1TLE, Service Manual

Page: 23 / 38

TCS-NET General Purpose Interface
Installation Manual
Toshiba
– 11 –
EN
„ Wiring Connection
The following displays an example of the TCB-IFCG1TLE connection to the TCC-LINK Network.
The TCC-LINK communication lines are connected to the U1 and U2 terminal blocks on the TCB-IFCG1TLE board
as shown below.
Communication lines are connectable for both wires between indoor units and between outdoor unit and indoor
units and for central control wires.
NOTE
The TCB-IFCG1TLE device can be connected to the TCC-LINK network on the indoor side using the U1 & U2
connections, OR on the outdoor side via the U3 & U4 connections.
For connection to external devices through digital inputs/outputs and analog inputs/outputs, refer to “Connection
to External Devices” in “8 Input/Output Specifications”
Shield earthing
The shield of the TCC-LINK Network wire should be connected on the air conditioner side and left open and
insulated at the TCB-IFCG1TLE side.
• U1 and U2 have no polarity.
Connecting HA Compatible Air Conditioner (When connecting to an air conditioner with JEMA-
compliant HA terminals)
(1) Set SW5-2 = OFF, SW5-3 = ON and SW5-4 = OFF on this board.
(2) Detach the panel of the indoor unit to be connected. Connect the 4 Pin plug with four wires (length must be 1.9
m or less, insulator thickness must be 1 mm or more, procured locally) to the 4 Pin HA connector on the control
board of the indoor unit. Consult the manufacturer of the air conditioner about the location of the HA terminals
and the installation method.
(3) Connect 1, 2, 3, and 4 of the four wires to RO1+, RO1-, DI3+, and DI3-, respectively.
U1 U2
U3 U4
U1 U2 U3 U4
U1 U2
TCB-IFCG1TLE
U1 U2
TCC-LINK
U1 U2
TCC-LINK
TCB-IFCG1TLE
Modbus
(TCB-IFMB640TLE)
U1 U2 U1 U2
U1 U2
Modbus
Master
CONTROLLER
When connecting to multiple outdoor units or central control wires
HA compatible air
conditioner or
relay control
device
HA compatible air
conditioner or
relay control
device
When connecting to
multiple indoor units
Indoor unit Indoor unit Indoor unit
Central control wires
Wires between indoor units
and between outdoor unit and
indoor units
Central control
remote controller
Outdoor unit
DO1+
DO1-
DI3+-
DI3-
(4)
(3)
(2)
(1)
(4)
(1)
Indoor unit
HA connector
This board
10-EN
+00DE89308101_01EN_TCB-IFCG10TLE_gene_IM.book Page 11 Monday, December 15, 2008 3:49 PM