Danfoss FC 300 Design Guide

FC 300 Design Guide
How to Install
" Additional Connections
" Load sharing
With load sharing you c an connect several adjusta ble frequency drive’s DC intermediate ci r cuits if
you extend the installation using extra fuses and AC coils (see illustration).
NOTE
Load sharing cables must be shielded/armoured. If an unshielded/unarmoured cable
is used, some EMC requirements are not compl ied with.
Voltage levels of up to 975 V DC may
occur between te rminals 88 and 89.
No. 88 89 Loadsharing
DC DC +
" Installation of Load Sharing
The connection cable must be shielded and the max. length from the adjustable fre-
quency drive to the DC bar is 81 ft. [25 m].
NOTE
Load sharing calls for extra e
quipment and safety considerations. For further
information, see Load Sharing Instructions MI.50.NX.YY.
" Brake Connection Option
The connection cable to the brake resistor
must be shielded/arm
ored.
No. 81 82 Brake resistor
R- R+ terminals
114
MG.33.B6.22 - VLT is a registered Danfoss trademark

Danfoss FC 300 Specifications

General

Enclosure	IP20
Approvals	cUL, UL, CE
EMC filter	Built-in
Communication Options	CANopen, PROFIBUS DP
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short Circuit
Output Voltage	0-100% of supply voltage