Overall Current Control - Daikin FTXB50BV1B Service Manual

Function & Control

2.20 Overall Current Control

To monitor the overall current and to restrict the compressor upper limit rotation in order to prevent circuit
breakers from exceeding the rated capacity.
Detected during compressor running.
Current (A)
L1
Frequency
reduce zone
L2
Frequency
remain zone
L3
Reset zone
Model
ARXN/RXN25/35L/M
ARXN/RXN50/60_L
ARXN/RXN50/60M
RXB50/60B
RX50/60CGXV1
When the input current for running compressor exceeds L2, running frequency will be reduced by 1 step. If
current still exceeds L2, frequency will be reduced by another 1 step until total current falls between L2 and
L3.
This protection cut in when the input current exceeds L1 for 2 seconds. Compressor will stop and it is
considered total current overload.
If input current < L3, the compressor frequency is reset based on the OD ambient, set and room
temperature.
Stop zone
L1
14.0A
12.0A
16.5A
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