Power Peak-Cut Control (Extended) - Toshiba MCY-MHP0305HT-C Service Manual

<SW07 Bit 2 OFF (two-step control)>
Power peak-cut control is enabled as long as SW1, as shown on the wiring diagram, is ON (continuously).
Jumper wire Input
J20 SW1
ON
Cut
OFF
Note 1: Specifications of display relay contact
• The terminal for display output ([Operation] terminal) must satisfy the following electrical rating.
<Electrical Rating>
220 to 240 VAC, 10 mA or more, 1 A or less
24 VDC, 10 mA or more, 1 A or less (non-conductive load)
When connecting a conductive load (e.g. relay coil) to the display relay load, 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.

7-3-3. Power peak-cut control (extended)

Outdoor unit
Outdoor unit
interface PCB
SW07
Bit 2 OFF
Operation
An external power peak-cut control signal limits the peak capacity of the outdoor unit.
L1: Power peak-cut control indication lamp
SW1: Power peak-cut control ON switch*1
SW2: Power peak-cut control OFF switch*1
*1 The inputs of SW1 and SW2 can be either pulse (100 msec or wider) or step signals.
* Be sure to provide a contact for each terminal.
Extended power peak-cut control settings
Specifications of display relay contact
External power peak-cut control
Indication lamp
signals
L 1 S W 1
OFF OFF
ON ON
ON OFF
ON ON
Note 1: Specifications of display relay contact
• The terminal for display output ([Operation] terminal) must satisfy the following electrical rating.
<Electrical Rating>
220 to 240 VAC, 10 mA or more, 1 A or less
24 VAC, 10 mA or more, 1 A or less (non-conductive load)
When connecting a conductive load (e.g. relay coil) to the display relay load, 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.
B t i 1 O F F
0 % (forced stop)
100 % (normal operation)
L1: Display lamp suring power peak cut control
Optional PCB
Display
TB1
relay
[OPERATION]
CN513
TB2
PJ17
COM
ON
COM
OFF
Connection cable
S W 2
OFF 100 % (normal operation)
OFF 80 % (upper limit regulated)
ON 60 % (upper limit regulated)
ON 0 % (forced stop)
34
57
S W 0 7 B t i 1
B t i 1 O N
60 % capacity (upper limit regulated)
100 % (normal operation)
Locally procured
Power
L1 supply
Shield wire
[ON]
SW1
[OFF]
SW2
Shield wire
For SW1 and SW2, be sure to provide
no-voltage contacts for each terminal.
Peak capacity
I/F SW07 Bit 1
O F F
100 % (normal operation)
85 % (upper limit regulated)
75 % (upper limit regulated)
60 % (upper limit regulated)
n I d c i t a r o e r a l y
L ( ) 1
ON
OFF
O N