Daikin ERQ, Руководство по обслуживанию

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Protection Control ESIE09-05
36 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 >12A
Inverter current
Inverter current
≥
13.1A continues for 260 sec.
>12A
•
Inverter current
≤
12A
•
INV upper limit frequency=max Hz
&
•
10 sec.
•
Matching of frequency
&
• When occurring 4 times within 60 min.,
the malfunction code "L8 " is output.
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
≤
12A
continues for 3 min.
Status quo
Without conditions
Not limited
Limited
Tfin
≥
79˚C
Tfin
≥
79˚C
Tfin
≥
84˚C
Fin temp. standby
•Tfin<76 ˚C
•INV upper limit frequency=max Hz
&
• When occurring 4 times within 60 min.,
the malfunction code "L4" is output.
INV upper limit frequency:
1-step down from current
compressor frequency
•10 sec.
•Macthing of frequency
&
Tfin
≤
76˚C
continues for 3 min.
INV upper limit frequency:
1-step up from current
compressor frequency
Status quo
Without conditions
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