Toshiba MMY-MUP0801HT7JP, Service Manual

Page: 100 / 309

6-6-3-9. Operating Rate Output
Operation
At the output terminals, a signal is present (relay closed) or absent (relay open) in various combinations
according to the system operation factor, as shown in the diagram.
The operation rate (FA) is the percentage ratio of the current output of the system to the maximum output (100%).
* Connect the optional P.C. board to the header outdoor unit.
Note 1 : Output Relay (K1, K2, K3) Contact Specifications
• Output terminals (OUTPUT1, 2, 3) must satisfy the following electrical rating.
• When connecting a conductive load (e.g. relay coil) to loads K1, K2 and K3, 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)
OUTPUT1
CN514
PJ20
OUTPUT2
OUTPUT3
TB1
1
2
6
4
3
C2
K1
K2
K3
MONITOR
Optional PCB
Locally procured
(See “NOTE”)
Header outdoor unit
Outdoor unit
interface PCB
Shield
wire
5
off = Relay open
on = Relay closed
Function Operation rate (FA) OUTPUT2 OUTPUT1 Outdoor DN Code
[O.DN]
O.DN [012] = 1 System operation
rate output off
on
off
on
off
on
off
on
off
off
on
on
off
off
on
on
FA=0%
0%
<
FA
<
20%
20% FA < 35%
35% FA
<
50%
50% FA < 65%
65% FA
<
80%
80% FA < 95%
95% FA
OUTPUT3
off
off
off
off
on
on
on
on
C2
CN514
K1, K2, K3
MONITOR
OUTPUT1
OUTPUT2
OUTPUT3
PJ20
TB1
Connector
cable 2
( )
Connector on interface side (green)
Relays
Monitoring device
Output terminal for each function
Output terminal for each function
Output terminal for each function
Connector on optional P.C.board side
Terminal block
2
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