Toshiba MMY-MUP0961HT6P-UL Service Manual page 92

6-2-3-9. Operating Rate Output
Header outdoor unit
interface PCB
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%).
Function Outdoor DN Code
[O.DN]
System operation O.DN [012] = 1
rate output
off = Relay open
on = Relay closed
Connector cable 2 (
C2
CN514 Connector on interface side (green)
K1, K2, K3 Relays
MONITOR Monitoring device
OUTPUT1 Output terminal for each function
OUTPUT2 Output terminal for each function
OUTPUT3 Output terminal for each function
PJ20 Connector on optional P.C.board side
Terminal block
TB1
* 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)
Optional PCB
Outdoor unit
C2
PJ20
CN514
OUTPUT1
off
on
off
on
off
on
off
on
)
2
Locally procured
(See "NOTE")
TB1
1
K1
OUTPUT1
2
3
K2
OUTPUT2 MONITOR
4
5
K3
OUTPUT3
6
Shield
wire
OUTPUT2 OUTPUT3
off off
off off
on off
on off
off on
off on
on on
on on
- 92 -
Operation rate (FA)
FA=0%
0% < FA < 20%
<
20% FA 35%
<
35% FA 50%
<
50% FA 65%
<
65% FA 80%
<
80% FA 95%
95% FA