Table of Contents
Advertisement
Frame
Rating
R4
Derating factor for
I n, I Ld and I Hd on
ACS180-04x-
048A-2,
045A-4
Derating factor for
I n, I Ld and I Hd on
ACS180-04x-
055A-2,
038A-4,
050A-4
￭
Altitude derating
1000...2000 m above sea level, the derating is 1% for every 100 m (330 ft).
To calculate the output current, multiply the current in the rating table with the
derating factor k, which for x meters (1000 m <= x <= 2000 m) is:
￭
Switching frequency derating
Derating the drive output current is necessary when using high minimum switching
frequencies. If you change parameter 97.02 Minimum switching frequency, calculate
the derated current. Multiply the drive output current with the applicable derating
factor from the table.
Derating is not necessary when changing parameter 97.01 Switching frequency
reference.
Frame R4: If the application is cyclic and the surrounding air temperature is
constantly more than 40 °C (104 °F), keep parameter 97.02 Minimum switching
frequency at its default value (1.5 kHz). Higher switching frequencies decrease the
product life time or the performance in the temperature range 40 ... 60°C
(104 ... 140 °F).
Install side-by-side
100%
80%
60%
40%
20%
0%
-10
0
14
32
100%
80%
60%
40%
20%
0%
-10
0
14
32
Technical data 107
Installation with 50mm space
between
90%
10
20
30
40
50
60
70
(°C)
50
68
86
104
122
140
158
(°F)
Ambient temperature
(°C)
10
20
30
40
50
60
70
50
68
86
104
122
140
158
(°F)
Ambient temperature
Advertisement
Table of Contents
