Power Peak-Cut Control (Extended) : Tcb-Pcdm4Ul - Carrier MMY-MAP0724FT9UL 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
J16 SW1
OFF
Cut
ON
Note 1: Specifications of display relay contact
• The terminal for display output ([Operation] terminal) must satisfy the following electrical rating.
<Electrical Rating>
208 to 230 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.
The optional P.C. board should be connected to the header outdoor unit (U1).

7-3-2. Power peak-cut Control (Extended) : TCB-PCDM4UL

Header outdoor unit
Outdoor unit
interface PCB
SW07
ON
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
signals
SW1 SW2
OFF OFF
ON OFF
OFF ON
ON ON
Note 1: Specifications of display relay contact
• The terminal for display output ([Operation] terminal) must satisfy the following electrical rating.
<Electrical Rating>
208 to 230 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.
The optional P.C. board should be connected to the header outdoor unit (U1).
Bit 1 OFF
100% (normal operation)
0% (forced stop)
Optional PCB
Display
relay
CN513
1 2 3 4
Bit 2 ON
Connection cable
OFF
100% (normal operation)
80% (upper limit regulated)
60% (upper limit regulated)
0% (forced stop)
SW07 Bit 1
Approx. 60% (upper limit regulated)
L1: Display lamp suring power peak cut control
TB1
Shield wire
[OPERATION]
PJ17
TB2
COM
[ON]
ON
COM
[OFF]
OFF
Shield wire
For SW1 and SW2, be sure to provide
no-voltage contacts for each terminal.
Peak capacity
I/F SW07 Bit 1
– 72 –
Bit 1 ON
100% (normal operation)
Locally procured
Power
supply
L1
SW1
SW2
ON
100% (normal operation)
85% (upper limit regulated)
75% (upper limit regulated)
60% (upper limit regulated)
Indicator relay
(L1)
OFF
ON
Indication lamp
L1
OFF
ON
ON
ON