-
Power [kW (hp)]
Torque [Nm (in-lb)]
H7
IP20
55 (70)
10 (89)
10 (89)
–
0.5 (4)
3 (27)
0.5 (4)
H7
IP20
75 (100)
14 (124)
14 (124)
–
0.5 (4)
3 (27)
0.5 (4)
H8
IP20
90 (125)
24 (212)
(1)
24 (212)
(1)
–
0.5 (4)
3 (27)
0.5 (4)
1
Cable dimensions >95 mm
2
.
Table 37: Tightening Torques for Enclosure Sizes H13–H14, 3x380–480 V
Location
Bolt size
Torque [Nm (in-lb)]
Mains terminals
M10/M12
19 (168)/37 (335)
Motor terminals
M10/M12
19 (168)/37 (335)
Ground terminals
M8/M10
9.6 (84)/19.1 (169)
Relay terminals
–
0.5 (4)
Door/panel cover
M5
2.3 (20)
Gland plate
M5
2.3 (20)
6.7 IT Mains
C A U T I O N
IT MAINS
Installation on isolated mains source, that is, IT mains.
Ensure that the supply voltage does not exceed 440 V (3x380–480 V units) when connected to mains.
For 380–480 V, IP20, 0.37–22 kW (0.5–30 hp) units, open the RFI switch by removing the screw on the side of the drive when at IT
grid.
e
3
0
b
b
6
1
2
.1
0
1
Illustration 54: IP20, 0.37–22 kW (0.5–30 hp), 380–480 V
1
EMC screw
N O T I C E
If reinserted, use only M3x12 screw.
For 380–480 V, 30–90 kW (40–125 hp) units, set
parameter 14-50 RFI Filter
to
[0] Off
when operating in IT mains.
For 380–480 V, 110–315 kW (150–450 hp) units, if the drive is supplied from an isolated mains source (IT mains, floating delta, or
grounded delta) or TT/TN-S mains with grounded leg, the RFI switch is recommended to be turned off via
parameter 14-50 RFI Filter
AJ363928382091en-000101 / 130R0983 | 71
Danfoss A/S © 2021.04
Electrical Installation
Considerations
VLT® Flow Drive FC 111
Design Guide