Toshiba MMY-MUP0801HT8P-TR Service Manual page 104

6-6-3-7. Trouble/Operation Output
Header outdoor unit
Outdoor unit
interface PCB
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.
Trouble output: Trouble indication signal is output if trouble occurs in at least one indoor/outdoor unit in the line.
Note 1: Output Relay (K1, K2) Contact Specifications
• Output terminals (OUTPUT1, 2) must satisfy the following electrical rating.
• 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 preventing back electromotive force (for a DC power supply) on the bypass circuit.
<Electrical Rating>
220-240 VAC, 10 mA or more, 1A or less
24 VAC, 10 mA or more, 1 A or less (non-conductive load)
C1 Attached connection cable 1 (4wires)
CN511 Connector on interface side (green)
K1, K2 Relays
L1 Trouble indication Lamp
L2 Operation indication Lamp
OUTPUT1 Trouble output
OUTPUT2 Operation output
PJ20 Connector on optional P.C.board side
PS Power supply unit
TB1 Terminal block
The optional P.C. board should be connected to the header outdoor unit (U1).
Optional PCB
TB1
C1
K1
CN511
PJ20 K2
Locally procured
(See "NOTE")
L1
1
OUTPUT1
2
L2
3
OUTPUT2
4
5
OUTPUT3
Shield
6
wire
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PS
PS