Daikin Super Multi Plus E-Series - Inverter Protection Control

Protection Control SiEN18-622
110 Function
4.4 Inverter Protection Control
Inverter current protection control and inverter fin temperature control are performed to prevent
tripping due to a malfunction, or transient inverter overcurrent, and fin temperature increase.
[Inverter overcurrent protection control]
[Inverter fin temperature control]
Not limited
Limited
Inverter current >23.8A
Inverter current
Inverter current ≥ 24.9A continues for 260 sec.
>23.8A
•Inverter current ≤ 23.8A
•
INV upper limit frequency=max Hz
&
•10 sec.
•Matching of frequency
&
•
INV upper limit frequency:
1-step down from current
compressor frequency
INV upper limit frequency:
1-step up from current
compressor frequency
Inverter current
standby
Inverter current ≤ 23.8A
continues for 3 min.
Status quo
Without conditions
When occurring 4 times within 60 min.,
the malfunction code "L8" is output.
Not limited
Limited
Tfin≥78°C
Tfin ≥ 78°C
• Tfin < 75°C
Tfin≥83°C
Fin temp. standby
• INV upper limit frequency=max Hz
&
•
INV upper limit frequency:
1-step down from current
compressor frequency
• 10 sec.
• Matching of frequency
&
Tfin ≤ 75°C
continues for 3 min.
INV upper limit frequency:
1-step up from current
compressor frequency
Status quo
Without conditions
When occurring 4 times within 60 min.,
the malfunction code "L4" is output.