Illustration 3.49: Always use a torque wrench to tighten the
bolts.
Frame size
Terminal
Torque
Bolt size
D1, D2, D3 and D4
Mains
Motor
19 Nm (168 in-lbs)
M10
Load sharing
Brake
9.5 Nm (84 in-lbs)
M8
E1 and E2
Mains
Motor
Load sharing
19 NM (168 in-lbs)
M10
Brake
9.5 Nm (84 in-lbs)
M8
F1, F2, F3 and F4
Mains
Motor
19 Nm (168 in-lbs)
M10
Load sharing
Brake
Regen
19 Nm (168 in-lbs)
9.5 Nm (84 in-lbs)
19 Nm (168 in-lbs)
M10
M8
M10
Table 3.3: Torque for terminals
3.6.6 Shielded Cables
It is important that shielded and armoured cables are connected in a proper way to ensure high EMC immunity and low emissions.
Connection can be made using either cable glands or clamps:
•
EMC cable glands: Generally available cable glands can be used to ensure an optimum EMC connection.
•
EMC cable clamp: Clamps allowing easy connection are supplied with the frequency converter.
3.6.7 Motor cable
The motor must be connected to terminals U/T1/96, V/T2/97, W/T3/98. Earth to terminal 99. All types of three-phase asynchronous standard motors
can be used with a frequency converter unit. The factory setting is for clockwise rotation with the frequency converter output connected as follows:
Terminal No.
Function
96, 97, 98, 99
Mains U/T1, V/T2, W/T3
Earth
VLT AQUA High Power Operation Instructions
3 How to Install
MG.20.P3.02 - VLT
®
is a registered Danfoss trademark
61
3
