Danfoss VLT Micro Drive FC 51 User Manual

3.8 Power Circuit
e30ba242.18
+ 10 V DC
0-10 V DC -
0/4-20 mA
0/4-20 mA
Analog output
0/4-20 mA
50 (+10 V OUT)
53 (A IN)
60 (A IN)
55 (COM A IN/OUT)
42 (A OUT)
12 (+24 V OUT)
18 (D IN)
19 (D IN)
20 (COM D IN)
27 (D IN)
29 (D IN)
33 (D IN)
ON/I=0-20 mA
OFF/U=0-10 V
S200
S200
ON (NPN)
OFF (PNP)
24 V
0 V
(NPN)
(PNP)
24 V
0 V
(NPN)
(PNP)
24 V
0 V
(NPN)
(PNP)
24 V
0 V
(NPN)
(PNP)
24 V
0 V
(NPN)
(PNP)
RS485
interface
(N RS485) 69
(P RS485) 68
(COM RS485) 61
RS485
(PNP) = Source
(NPN) = Sink
S801
0 V
S640
ON = Terminated
OFF = Open
Relay 1
03
02
01
240 V AC, 2 A
Brake
resistor
1)
DC bus
Motor
UDC-
UDC+/BR+
BR-
PE
U
V
W
Switch mode
power supply
10 V DC 24 V DC
5 V
3 phase
power
input
L1/L
L2
L3/N
PE
4
ON
1 2
ON
1 2
ON
Illustration 6: Diagram Showing all Electrical Terminals
1) Brakes (BR+ and BR-) are not applicable for enclosure size M1.
For information about brake resistors, see VLT® Brake Resistor MCE 101 Design Guide.
Improved power factor and EMC performance can be achieved by installing optional Danfoss line lters.
Danfoss power lters can also be used for load sharing. For more information about load sharing, see VLT® Micro DriveFC 51 Load
Sharing application note.
3.9 Load Sharing/Brake
Use 6.3 mm (0.25 in) insulated Faston plugs designed for high voltage for DC (load sharing and brake).
Contact Danfoss or see Load sharing instruction VLT® 5000 for load sharing and VLT® 2800/5000/5000 FLUX/FCD 300 Brake for brake.
Load sharing
Connect terminals -UDC and +UDC/+BR.
Brake
Connect terminals -BR and +UDC/+BR (not applicable for enclosure size M1).
AQ348848915086en-000101 / 130R0943 | 15Danfoss A/S © 2020.09
Installation
VLT® Micro Drive FC 51
Operating Guide

Danfoss VLT Micro Drive FC 51 Specifications

General

Brand	Danfoss
Model	VLT Micro Drive FC 51
Category	DC Drives
Language	English