52
<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).
Note 1: Specifications of display relay contact
• The terminal for display output ([Operation] terminal) must satisfy the following electrical rating.
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.
The optional P.C. board should be connected to the header outdoor unit (U1).
7-2-2. Power peak-cut control (extended)
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
Note 1: Specifications of display relay contact
• The terminal for display output ([Operation] terminal) must satisfy the following electrical rating.
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.
The optional P.C. board should be connected to the header outdoor unit (U1).
Jumper wire
J16
Input
SW1
SW07 Bit 1 Indicator relay
Bit 1 OFF Bit 1 ON (L1)
Cut
ON 0% (forced stop) 60% capacity (upper limit regulated) OFF
OFF 100% (normal operation) 100% (normal operation) ON
<Electrical Rating>
24 V or less (AC / DC), 10 mA or more, 1 A or less (non-conductive load)
Indication lamp
External power peak-cut control
signals
Peak capacity
I/F SW07 Bit 1
L1 SW1 SW2 OFF ON
OFF OFF OFF 100% (normal operation) 100% (normal operation)
ON ON OFF 80% (upper limit regulated) 85% (upper limit regulated)
ON OFF ON 60% (upper limit regulated) 75% (upper limit regulated)
ON ON ON 0% (forced stop) 60% (upper limit regulated)
<Electrical Rating>
24 V or less (AC / DC), 10 mA or more, 1 A or less (non-conductive load)
Header outdoor unit
L1: Display lamp suring power peak cut control
Locally procured
Outdoor unit
interface PCB
Connection cable
Shield wire
Shield wire
Display
relay
Optional PCB
[OPERATION]
Power
supply
For SW1 and SW2, be sure to provide
no-voltage contacts for each terminal.
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