Back-Up Option (Option D); Brake Resistors; Remote-Mounting Kits For Lcp; Input Capacitance - Danfoss VLT AutomationDrive FC 300 Design Manual

FC 300 Design Guide
24 V Back-Up Option (Option D)
"
External 24 V DC Supply
An external 24 V DC supply can be installed for low-voltage supply to the control card and any option card
installed. This enables full operation of the LCP (including the parameter setting) without connection to line.
External 24 V DC supply specification:
Input voltage range ...................................................................... 24 V DC +15 % (max. 37 V in 10 s)
Max. input current .................................................................................................................. 2.2 A
Max cable length .......................................................................................................... 246 ft (75 m)
Input capacitance load ......................................................................................................... < 10 uF
Power-up delay .................................................................................................................... < 0.6 s
The inputs are protected.
Terminal numbers:
Terminal 35: - external 24 V DC supply.
Terminal 36: + external 24 V DC supply.
Follow these steps:
Remove the LCP or Blind Cover
1.
Remove the Terminal Cover
2.
3. Remove the Cable Decoupling Plate and
the plastic cover underneath
Insert the 24 V DC Back-up External Supply
4.
Option in the Option Slot
Mount the Cable Decoupling Plate
5.
Attach the Terminal Cover and the LCP
6.
or Blind Cover.

Brake Resistors

"
Brake resistors are used in applications where high dynamics are needed or a high inertia load must be
stopped. The brake resistor is used to remove the energy from the DC link in the adjustable frequency drive.

Remote-mounting Kits for LCP

"
The remote kit option makes it possible to move the
display from the adjustable frequency drive e.g.
to the front panel of an integrated cabinet.
68
How to Select Your VLT
Connection to 24 V backup supplier.
MG.33.B3.22 - VLT is a registered Danfoss trademark
Technical data
Enclosure:
Max. cable length between VLT and
unit:
Communication std:
IP 65 front
10 ft (3 m)
RS-485