Input Current Control - Daikin ARXG35E3V1B Service Manual

SiBE04-809
3.5

Input Current Control

Outline The microcomputer calculates the input current during the compressor is running, and set the
frequency upper limit from such input current.
In case of heat pump model, this control is the upper limit control function of the frequency
which takes priority of the lower limit of four way valve activating compensation.
Detail
Frequency control in each zone
Drooping zone
Keep zone
Reset zone
Stop zone
I4 (A)
I3 (A)
I3-Iα (A)
Limitation of current drooping and stop value according to the outdoor air temperature
1. In case the operation mode is cooling
2. In case the operation mode is heating
Function and Control
I4
I3
I3 –Iα
The maximum limit of the compressor frequency in this control is defined as operation
frequency – 2Hz.
After this, the output frequency is pulled down by 2Hz every second until it reaches the
steady zone.
The present maximum frequency goes on.
Limit of the frequency is cancelled.
After 2.5 s in this zone, the compressor is stopped.
Cooling
Class 25 35
9.25 9.25
6.5 7.25
5.75 6.5
The current droops when outdoor air temperature becomes higher than a certain level
(model by model).
The current droops when outdoor air temperature becomes higher than a certain level
(model by model).
Compressor Stop
Heating
25 35
9.25 9.25
7.5 8.25
6.75 7.5
Control Specification
Stop Zone
Drooping Zone
Keep Zone
Reset Zone
(R4304)
35