Operating Rate Output - Toshiba MMY-MAP0804HT8(Z)(ZG)-E Service Manual

6-8-9. 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%).
Function SW16
System operation
ON
rate output
OFF
Bit 1: ON
Bit 2: OFF
off = Relay open
on = Relay closed
C2 Connection cable 2
CN514 Interface-side connector (green)
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 PCB side
TB1 Terminal block
* 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)
Header outdoor unit
Outdoor unit
interface PCB
C2
SW16
CN514
ON
OFF
1 2 3 4
OUTPUT1
off
on
1 2 3 4
off
on
off
on
off
on
Locally procured
Optional PCB
TB1
1
K1
OUTPUT1
2
3
PJ20 K2
OUTPUT2
4
5
K3
OUTPUT3
6
Shield
wire
OUTPUT2 OUTPUT3
off
off
on
on
off
off
on
on
117
(See "NOTE")
MONITOR
Operation factor (FA)
off FA=0%
off < <
0% FA
off 20% FA
off
35% FA
on
50% FA
on
65% FA
on 80% FA
on 95% FA
20%
< 35%
<
50%
<
65%
<
80%
< 95%