Power Peak-Cut Control (Standard): Tcb-Pcdm4Ul - Carrier MMY-MAP0724FT9UL Service Manual

7-3-1. Power peak-cut Control (Standard): TCB-PCDM4UL

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
Power peak-cut control P.C.
board
Power peak-cut control ON
signal received
Power peak-cut control OFF
signal received
Two-core cable support
SMMS-i series 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.
Header outdoor unit
Optional PCB
Display
Outdoor unit
relay
interface PCB
CN513
SW07
ON
OFF
1 2 3 4
Bit 2 OFF
Connection cable
SW1 SW2 L1
ON OFF ON
OFF ON OFF
Header outdoor unit
Outdoor unit
interface PCB
J16 Cut
CN513
SW07
ON
OFF
1 2 3 4
Bit 2 ON
Connection cable
L1: Display lamp suring power peak cut control
Locally procured
TB1
[OPERATION]
Shield
wire
TB2
PJ17
COM
[ON]
ON
COM
[OFF]
OFF
Shield
wire
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.
Interface P.C. board of header outdoor unit
SW07 Bit 1 OFF
0% (forced stop)
100% (normal operation)
L1: Display lamp suring power peak cut control
Optional PCB
Display
TB1
relay
[OPERATION]
PJ17
TB2
COM
[ON]
ON
COM
[OFF]
OFF
– 71 –
Power
supply
L1
SW1
SW1
SW2
SW2
SW07 Bit 1 ON
60% capacity (upper limit regulated)
100% (normal operation)
Locally procured
Power
supply
L1
Shield wire
SW1
Shield wire