Toshiba MMY-MUP0721FT6P-UL Service Manual page 100

6-2-3-1. Power peak-cut Control (Standard)
(1) Four-core cable support
Header outdoor unit
Outdoor unit
interface PCB
SW105
ON
OFF
1 2 3 4
Bit1 OFF, Bit2 OFF
Operation
The demand request signal from the outside restricts the maximum capability (or maximum electric power) of
an 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 longer) 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
[2-stage switching] < SW105 bit1 OFF, bit2 OFF >
Control item
Input demand OFF signal to release the demand
Input demand ON signal to control the demand
Outdoor unit DN Code (O.DN)
[00E]
0
1
2
3
4
5
6
7
8
9
10
15 (factory default)
L1: Display lamp ensuring power peak cut control
Optional PCB
Display
TB1
relay
[OPERATION]
TB2
PJ17
CN513
COM
[ON]
ON
COM
[OFF]
OFF
Connection cable
Optional P.C.board
Input Display relay
SW1 SW2
OFF ON
ON OFF
* The upper limit X% can be regulated with the outdoor DN Code (O.DN) [00E].
Note 1: Specifications of display relay contact
X
• The terminal for display output ([Operation] terminal) must satisfy
the following electrical rating.
100%
95%
<Electrical Rating>
90%
208 to 230 VAC, 10 mA or more, 1 A or less
85%
24 VAC, 10 mA or more, 1 A or less (non-conductive load)
80%
75%
When connecting a conductive load (e.g. relay coil) to the display
70% relay load, insert a surge killer CR (for an AC power supply) or a
diode for preventing back electromotive force (for a DC power
65%
supply) on the bypass circuit.
60%
55%
Note 2: COM contact specifications
50%
• COM terminals have DC12 V output with a basic insulation. Use a
0%
(forced stop)
switch, such as a relay or photocoupler, insulated from a
controller (locally procured) for CO (Change-Over) contact or NO
(normally-open) contact.
• DC12 V has a current-limiting resistor of 3.3 k
• For non-voltage contacts, use a relay with minimum applicable
load of DC12V, 3mA or less.
Locally procured
Power
supply
L1
Shield
wire
SW1
SW2
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.
Outdoor unit interface P.C.board
SW105
(L1) Bit1 Bit2 Factory default [00E] = 15
OFF OFF OFF 100% (normal operation) 100% (normal operation)
ON OFF OFF 0% (forced stop)
- 100 -
SW1
SW2
Demand: power peak-cut control
Outdoor unit DN Code [00E]
[00E] = 0 to 10
Approx. X (50% to 100%)
(upper limit regulated)
.