Power Peak-Cut Control (Extended) - Toshiba MCY-MHP0404HS-E 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
J20
Cut
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
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
L 1 S
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.
AMP Air Conditioning
Input
SW1
B
ON 0 % (forced stop)
OFF 100 % (normal operation)
Optional PCB
Display
relay
CN513
SW07
Bit 2 OFF
Connection cable
signals
W 1 S W 2
OFF
OFF
ON
ON
S W 0 7 B t i 1
t i 1 O F F
60 % capacity (upper limit regulated)
100 % (normal operation)
L1: Display lamp ensuring power peak cut control
TB1
Shield wire
[OPERATION]
TB2
PJ17
COM
[ON]
ON
COM
[OFF]
OFF
Shield wire
For SW1 and SW2, be sure to provide
no-voltage contacts for each terminal.
O F F
100 % (normal operation)
80 % (upper limit regulated)
60 % (upper limit regulated)
0 % (forced stop)
57 41
B t i 1 O N
Locally procured
Power
L1 supply
SW1
SW2
Peak capacity
I/F SW07 Bit 1
O N
100 % (normal operation)
85 % (upper limit regulated)
75 % (upper limit regulated)
60 % (upper limit regulated)
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n I d c i t a r o e r a l y
L ( ) 1
ON
OFF