7-2-7. Trouble/Operation Output
Mode name : TCB-PCIN4UL
Operation
In-operation output: An in-operation indication signal is output as long as at least one indoor unit is in
operation in the line.
Failure output: A failure indication signal is output if a check code occurs in at least one indoor/outdoor unit in
the line.
Note 1: Output Relay (K1, K2) Contact Specifications
• Please insert the following electrical rating to output the terminals (Output 1,2)
• When connecting a conductive load (e.g. relay coil) to loads K1 and K2 insert a surge killer CR (for an AC
power supply) or a diode for perventing back electromotive force (for a DC power supply) on the bypass circuit.
The optional P.C. board should be connected to the header outdoor unit (U1).
<Electrical Rating>
200-240 VAC, 10 mA or more, 1A or less (non-conductive load)
24 VDC, 10 mA or more, 1 A or less (non-conductive load)
OUTPUT1
CN511
PJ20
OUTPUT2
OUTPUT3
TB1
L1
L2
1
2
5
6
4
3
C1
PS
PS
K1
K2
1234
ON
OFF
SW16
Optional PCB
Locally procured
(See “NOTE”)
Header outdoor unit
Outdoor unit
interface PCB
Shield
wire
C1 Attached connection cable 1 (4wires)
CN511 Connector on interface side (green)
K1, K2 Relays
L1 Failure indication Lamp
L2 Operation indication Lamp
OUTPUT1 Failure output
OUTPUT2 Operation output
PJ20 Connector on optional PCB side
PS Power supply unit
TB1 Terminal block
− 74 −
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