2 Description of the drive
B 5000 en-2621
19
2.4 Requirements for the use of the drive
2.4.1 Ambient conditions
The motor must be protected against intensive sunlight, e.g. by the use of a protective cover. The
insulation is tropicalised.
Installation altitude: maximum 1000 m
Ambient temperature: -20°C to +40°C
For standard motors (without options), an extended ambient temperature range from -20°C to +60°C
is permissible. In this case, the rated power must be reduced to 82% of the value stated in the
catalogue. If the maximum ambient temperature is b40°C and +60°C, the power output
should be inversely linearly interpolated between 100% and 82%.
The motor connection cables and the cable glands must be suitable for temperatures above 90°C.
2.4.2 Permissible axial and radial forces
The maximum permissible axial forces (F
A
) and radial forces (F
R
) for the A side end of the motor shaft
can be obtained from the table below. Getriebebau NORD should be consulted if the radial force (F
R
)
is applied at a distance which is greater than the length E/2.
No
axial forces (F
A
) and radial forces (F
R
) are permissible for the B side shaft end.
Type
F
R
[N]
F
A
[N]
63
530
480
71
530
480
71./8
780
680
80
860
760
90
910
810
90./8
1100
1000
100
1300
1100
112
1950
1640
132
2790
2360
Table 5: Permissible axial forces F
A
and radial forces F
R
2.4.3 Minimum cross-section of protective conductors
Cross-section of phase conductor in installation S
[mm
2
]
Minimum cross-section of the associated
protective conductor S
P
[mm
2
]
S ≤ 16
S
16 < S ≤ 35
16
S > 35
0.5 S
Table 6: Minimum cross-section of protective conductors
