Derating Of Rated Output Current - Fuji Electric FRENIC-HVAC User Manual

2.6 Derating of Rated Output Current

When increasing the carrier frequency setting (Function code F26) greater than the factory default 2
kHz, you need to derate the output current rating. Derating allows the higher ambient temperature than
the rating. The tables below list the derating factors in relation to the carrier frequency and ambient
temperature. Use the inverters within the range specified below.
(1) NEMA/UL TYPE1 : FRN001AR1M-2U to FRN060AR1M-2U，FRN001AR1M-4U to
FRN125AR1M-4U
NEMA/UL TYPE 12: FRN001AR1L-2U to FRN060AR1L-2U，FRN001AR1L-4U to
FRN125AR1L-4U
Carrier
NEMA/
frequency
UL TYPE1
setting
50°C
(kHz)
(122°F)
0.75 to 2 100%
3 100%
4 93%
5 87%
6 81%
7 76%
8 72%
9 68%
10 64%
11 60%
12 57%
13 55%
14 52%
15 50%
16 47%
Note: For 230 V class series inverters of 30 to 100 HP and 460 V ones of 60 to 125 HP, the upper limit
of the carrier frequency is 10 kHz.
230V class series: FRN001AR1L-2U, FRN003AR1L-2U
Group 1
460V class series: FRN001AR1L-4U, FRN002AR1L-4U, FRN003AR1L-4U, FRN007AR1L-4U
230V class series: FRN005AR1L-2U, FRN007AR1L-2U, FRN010AR1L-2U
Group 2
460V class series: FRN010AR1L-4U, FRN020AR1L-4U, FRN100AR1L-4U, FRN125AR1L-4U
230V class series: FRN002AR1L-2U, FRN015AR1L-2U
Group 3
460V class series: FRN005AR1L-4U, FRN015AR1L-4U, FRN025AR1L-4U,
FRN030AR1L-4U， FRN060AR1L-4U, FRN075AR1L-4U
230V class series: FRN020AR1L-2U, FRN025AR1L-2U
Group 4
460V class series: FRN040AR1L-4U, FRN050AR1L-4U
Note: About FRN030AR1L-2U to FRN060AR1L-2U, consult your Fuji Electric representative.
Contact Fuji Electric for details on 575V class series derating curves.
Output current derating factor (rated current ratio)
NEMA/ NEMA/
UL TYPE1 UL TYPE12
60°C 40°C
(140°F) (104°F)
50% 100%
50% 100%
47% 93%
44% 87%
41% 81%
38% 76%
36% 72%
34% 68%
32% 64%
30% 60%
29% 57%
28% 55%
26% 52%
25% 50%
24% 47%
2-42
NEMA/UL TYPE12, 50°C (122°F)
Group 1 Group 2 Group 3
90% 80%
90% 80%
84% 74%
78% 70%
73% 65%
68% 61%
65% 58%
61% 54%
58% 51%
54% 48%
51% 46%
50% 44%
47% 42%
45% 40%
42% 38%
Group 4
75% 70%
75% 70%
70% 65%
65% 61%
61% 57%
57% 53%
54% 50%
51% 48%
48% 45%
45% 42%
43% 40%
41% 39%
39% 36%
38% 35%
35% 33%