Energy-Save Control And Peak Cut Control - Mitsubishi Electric G-50A Operation Manual

5-2 Energy-Save Control and Peak Cut Control

Click on [Functions 1] – [Peak Cut] in the menu to bring up the peak cut control screen, and make necessary
peak cut settings to use the energy-save or peak cut control function.
Click [Save Settings] to send setting data to the G-50A.
Note: The use of energy-save/peak cut control functions requires a separate license registration.
Confirm on the license registration screen (Ch8) that the license registration has been completed.
Note: If the user logs in as a building manager, some of the operations may be prohibited.
PLC Software for demand
input
Enter IP address and demand
level report recipient.
PLC Initialize
Click here to initialize the
internal memory of the PLC.
Electric Amount Count
Software
Enter IP addresses, pulse units,
and watt-hour meter terminal
inf. here.
Outdoor unit control
method
Set the outdoor unit control
method.
Refresh
Read setting data from G-50A
and PLC.
The use of energy-save/peak cut control requires the user to make certain settings as shown in the table
below. The settings required depend on the configuration of the system.
Items
5-2-1 PLC Initialize
5-2-2 PLC Software for demand input
5-2-3 Electric Amount Count Software
5-2-4 Control Level
5-2-5 Temperature difference between set
point and inlet
5-2-6 Outdoor unit control method
5-2-7 Indoor unit control method
Demand level
G-50A
Table 5-3 Required Settings for Energy-save and Peak-cut Controls
Functions
Energy-Save Control
Always
performs level
0 control
G-50A
Demand Controller Method
Demand level
report
contact input
PLC (with Electric
Amount Count Software)
Energy-Save
Electric Power
Control
Monitor Method
V
V
V
Monitors electric
G-50A
Demand
Controller
20
Control Level
Set the range of electric power
(average electric power) at
each energy-save level.
Temperature difference
between set point and inlet
With this limit or greater
difference, indoor units will not
be controlled on level 0.
Indoor unit control method
Set the indoor unit control
method.
Save Settings
Send setting data to G-50A
and PLC.
Peak-cut Control
Demand
Controller Method
V V
V
V
V
V V
V V
V V
Electric Power Monitor Method
power
PLC (with Electric
Amount Count Software)
Pulse
Pulse-method
watt-hour meter