51
7-2-1. Power peak-cut control (standard)
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 (ON as long as target power peak-cut control has been reached or
exceeded, normally OFF)*1
SW2: Power peak-cut control OFF switch (OFF as long as target power peak-cut control has not been reached or
exceeded, normally ON)*1
*1 The inputs of SW1 and SW2 can be either pulse (100 msec or wider) or step signals.
Do not turn on SW1 and SW2 simultaneously.
* Be sure to provide a contact for each terminal.
Power peak-cut control settings
Two-core cable support
SMMS-i models allows ON/OFF power peak-cut control to be implemented using a power peak-cut control ON
input (SW1) alone, provided that the J16 jumper wire on the interface P.C. board of the header outdoor unit has
been removed.
Power peak-cut control P.C.
board
SW1 SW2 L1
Interface P.C. board of header outdoor unit
SW07 Bit 1 OFF SW07 Bit 1 ON
Power peak-cut control ON
signal received
ON OFF ON 0% (forced stop) 60% capacity (upper limit regulated)
Power peak-cut control OFF
signal received
OFF ON OFF 100% (normal operation) 100% (normal operation)
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.
The input signals of SW1 and SW2 may be pulse
input (100 msec or more) or continuous make.
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
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