Daikin FTKS50BVMB, Service Manual

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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 c u rrent >2 3 . 8 A
Inverter c u rrent
Inverter c u rrent
≥
24.9A contin u e s for 260 s ec.
>2 3 . 8 A
•
Inverter c u rrent
≤
2 3 . 8 A
•
INV u pper limit fre qu ency=m a x Hz
&
•
10 s ec.
•
M a tching of fre qu ency
&
•
INV u pper limit fre qu ency:
1- s tep down from c u rrent
compre ss or fre qu ency
INV u pper limit fre qu ency:
1- s tep u p from c u rrent
compre ss or fre qu ency
Inverter c u rrent
s t a nd b y
Inverter c u rrent
≤
2 3 . 8 A
contin u e s for 3 min.
S t a t us qu o
Witho u t condition s
When occ u rring 4 time s within 60 min.,
the m a lf u nction code "L 8 " i s o u tp u t.
Not limited
Limited
Tfin
≥
7 8 °C
Tfin
≥
7 8 °C
•Tfin
<
75°C
Tfin
≥
83 °C
Fin temp. s t a nd b y
•INV u pper limit fre qu ency=m a x Hz
&
•
INV u pper limit fre qu ency:
1- s tep down from c u rrent
compre ss or fre qu ency
•10 s ec.
•M a tching of fre qu ency
&
Tfin
≤
75°C
contin u e s for 3 min.
INV u pper limit fre qu ency:
1- s tep u p from c u rrent
compre ss or fre qu ency
S t a t us qu o
Witho u t condition s
When occ u rring 4 time s within 60 min.,
the m a lf u nction code "L4" i s o u tp u t.