Danfoss VLT AutomationDrive FC 300 Design Manual page 120

6. How to Install
Connection can be made with 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.
6.5.8. 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 VLT frequency converter output connected as follows:
Terminal No.
96, 97, 98, 99
• Terminal U/T1/96 connected to U-phase
• Terminal V/T2/97 connected to V-phase
• Terminal W/T3/98 connected to W-phase
6
The direction of rotation can be changed by switching two phases in the motor cable or by changing the setting of par. 4-10.
6.5.9. Brake Cable
(Only standard with letter B in position 18 of typecode).
Terminal No.
81, 82
The connection cable to the brake resistor must be screened. Connect the screen by means of cable clamps to the conductive back plate at the frequency
converter and to the metal cabinet of the brake resistor.
Size the brake cable cross-section to match the brake torque. See also
safe installation.
Please note that voltages up to 1099 VDC, depending on the supply voltage, may occur on the terminals.
6.5.10. Load Sharing
(Only extended with letter D in position 21 of the typecode).
Terminal No.
88, 89
The connection cable must be screened and the max. length from the frequency converter to the DC bar is 25 metres (82 feet).
Load sharing enables linking of the DC intermediate circuits of several frequency converters.
120
Function
Mains U/T1, V/T2, W/T3
Ground/Earth
Function
Brake resistor terminals
Brake Instructions, MI.90.Fx.yy
Function
Loadsharing
MG.33.BA.02 - VLT ® is a registered Danfoss trademark
FC 300 Design Guide
MI.50.Sx.yy
and for further information regarding