TCS-NET General Purpose Interface
Installation Manual
Toshiba
– 22 –
Examples of relay contact connection
Refer to “2. Connecting Relay-Controlled Devices”
*
shows the control coil of an auxiliary relay, and Xn shows the contact of auxiliary relay Xn.
Type
Connection
Remarks
Pulse contact output
RO1 ON/OFF: “a” contact
output
Home automation (HA)
equipment operation
SW5-2 = OFF
SW5-3 = ON
SW5-4 = OFF
DI3+ -> DI3-
Shows indoor unit is
operating when current is
ON, and indoor unit stops
when current is OFF.
Relay contacts are turned
ON when operation is
started and stopped.
Pulse contact output
Both RO1 and RO2 ON/
OFF: “a” contact output
SW5-2 = OFF
SW5-3 = OFF
SW5-4 = OFF
X1 (“a” contact) and X2 (“b”
contact) are auxiliary
relays.
X1 contacts are closed
during a time period from
RO1 ON output to RO2
OFF output.
Connect a device to be
controlled to the contacts
of X1.
Pulse contact output
RO1 ON: “a” contact output
RO2 OFF: “b” contact
output
SW5-2 = OFF
SW5-3 = ON
SW5-4 = ON
X1 (a contact) is auxiliary
relay.
X1 contacts are closed
during a time period from
RO1 ON output to RO2
OFF output. Connect a
device to be controlled to
the contacts of X1.
Continuous contact output
RO1, RO2, RO3, RO4 ON:
“a” contact output
SW5-2 = ON
SW5-3 = OFF
X1 to X4 are auxiliary
relays.
Each contact is used.
These contacts can be
used directly for power line
ON and OFF without
auxiliary relays within the
allowable range of current
and voltage. When relays
X1, X2, X3, and X4 are
used, connect a device to
be controlled or power line
to each contact.
RO1+
RO1-
DI3+
DI3-
Indoor unit HA terminals
(1) HA control input+
(2) HA control input-
(3) HA monitor
(4) HA monitor output -
RO2+
RO2-
X2
X1
X1-
RO1+
RO1-
X1
X2
ON output
OFF output
Operation
circuit
X1
X1
X1-
RO1+
RO1-
RO2+
RO2-
Operation
circuit
ON output
OFF output
RO2+
RO2-
RO3+
RO3-
RO1+
RO1-
RO4+
RO4-
X1
X1
X2
X3
X4
X2
X3
X4
ON output
ON output
ON output
ON output
Operation
circuit
Xn
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