Danfoss VLT AutomationDrive FC 300 - 7 Electrical Installation; Connections; Torque Settings

7 Electrical Installation
7.1 Connections
7.1.1 Torque Settings
When tightening electrical connections, it is important to use a torque wrench to obtain the correct torque. Torque that is
too low or too high results in a bad electrical connection.
See the torque settings in Table 7.1.
Frame size Terminal Size Torque nominal [Nm (in-lbs)] Torque range [Nm (in-lbs)]
D1h/D3h/D5h/D6h Line power
Motor
Load sharing
Regeneration
M10 29.5 (261) 19–40 (168–354)
Ground
Brake
M8 14.5 (128) 8.5–20.5 (75–181)
D2h/D4h/D7h/D8h Line power
Motor
Regeneration
Load Sharing
Ground
M10 29.5 (261) 19–40 (168–354)
Brake M8 8.5–20.5 (75–181)
E Line power M10 19.1 (169) 17.7–20.5 (156–182)
Motor
Load Sharing
Ground
Regen M8 9.5 (85) 8.8–10.3 (78.2–90.8 in-lbs.)
Brake
F Line power M10 19.1 (169) 17.7–20.5 (156–182 in-lbs.)
Motor
Load Sharing
Regen: DC-
DC+
M8
M10
9.5 (85)
19.1 (169)
8.8–10.3 (78.2–90.8)
17.7–20.5 (156–182)
F8-F13 Regen M10 19.1 (169) 17.7–20.5 (156–182.)
Ground M8 9.5 (85) 8.8–10.3 (78.2–90.8)
Brake
Table 7.1 Terminal Tightening Torques
Electrical Installation Design Guide
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