Daikin FTXN-LV - Command Rotation Determination; Fuzzy Control Logic; Limit Rotation Definition

TS13-01 Troubleshooting manual 11
COMMAND ROTATION
- Cut in upon termination of Starting Control.
- Achieve capacity control by controlling the compressor rotation based on :
• Temperature difference between set and room temperature, T.
• Limit Rotation.
• Defrost control.
Fuzzy Control
- Based on temperature difference, T, current fan speed setting & current indoor operating mode at every
30 seconds interval.
-
LIMIT ROTATION
Determine from
• Upper limit rotation
RXN60LV1B
93 Hz
Temperature Difference
Condition 1
∆T
Condition 2
d∆T
∆T
t
= T
room
- T
set
d∆T
t
= ∆T
t
- ∆T
t-1
Use to set target for compressor frequency change
Compressor frequency is increased or
decreased