Operating Rate Output - Toshiba MMY-MAP0724HT6UL Service Manual

7-2-9. Operating rate output

Header outdoor unit
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
rate output
Bit 1: ON
Bit 2: OFF
off = Relay open
on = Relay closed
C2 Connection cable 2
Interface-side connector (green)
CN514
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
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>
24 V or less (AC / DC), 10 mA or more, 1 A or less (non-conductive load)
Outdoor unit
Optional PCB
interface PCB
OUTPUT1
off
on
off
on
off
on
off
on
Locally procured
Shield
wire
OUTPUT2 OUTPUT3
off off
off off
on off
on off
off on
off on
on on
on on
58
(See "NOTE")
MONITOR
Operation factor (FA)
FA=0%
0% < FA < 20%
<
20% FA 35%
<
35% FA 50%
<
50% FA 65%
<
65% FA 80%
80% FA < 95%
95% FA