Delta VFD11AMS21AFSHA, Руководство пользователя

Страница: 114 / 445

Chapter 9 Specification

MS300 (High Speed Model)
9-9

Derating of Altitude
For IP20 / UL Open Type
Current derating at ambient temperature
Ambient temperature 40
o
C 45
o
C 50
o
C
Operating altitude
above sea level
(m)
0-1000 100%
1001-1500 100% 95%
1501-2000 100% 95% 90%
For IP40 / NEMA1 / UL Type 1
Current derating at ambient temperature
Ambient temperature 30
o
C 35
o
C 40
o
C
Operating altitude
above sea level
(m)
0-1000 100%
1001-1500 100% 95%
1501-2000 100% 95% 90%
Operating
Conditions
Ambient Temperature Limits
IP20 /
UL Open Type
When the AC motor drive is operating at the rated current, the ambient temperature has to
be between -20
o
C ~ +50
o
C. When the temperature is over 50
o
C, for every increase by
1
o
C, decrease 2.5 % of the rated current. The maximum allowable temperature is 60
o
C.
For IP40 /
NEMA1 /
UL Type 1
When the AC motor drive is operating at the rated current, the ambient temperature has to
be between -20
o
C ~ +40
o
C. When the temperature is over 40
o
C, for every increase by
1
o
C, decrease 2.5 % of the rated current. The maximum allowable temperature is 60
o
C.
High Altitude
If the AC motor drive is installed at altitude 0~1000 m, follow normal operation restriction.
If it is installed at altitude 1000~2000 m, decrease
1 % of rated current or lower 0.5
o
C of temperature for every 100 m increase in altitude.
Maximum altitude for Corner Grounded is 2000 m. Contact Delta for more information if
you need to use this motor drive at an altitude of 2000 m or higher.