Connecting To Mains And Motor; Control Terminals - Danfoss VLT Micro Drive FC 51 Guide Rapide

Quick Guide
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1.3.3 Connecting to Mains and Motor

The frequency converter is designed to operate all
standard 3-phased asynchronous motors.
The frequency converter is designed to accept mains/
motor cables with a maximum cross-section of 4 mm
AWG (M1, M2 and M3), and a maximum cross-section of 16
2
mm /6 AWG (M4 and M5).
•
Use a shielded/armored motor cable to comply
with EMC emission specifications, and connect
this cable to both the decoupling plate and the
motor metal.
•
Keep motor cable as short as possible to reduce
the noise level and leakage currents.
•
For further details on mounting of the decoupling
plate, see VLT
Mounting Plate Instructions.
•
Also see the chapter EMC-correct Electrical Instal-
lation in the VLT
1. Mount the ground wires to PE terminal.
2. Connect motor to terminals U, V, and W.
3. Mount mains supply to terminals L1/L, L2, and
L3/N (3-phase) or L1/L and L3/N (single-phase)
and tighten.
Illustration 1.2 Mounting of Ground Cable, Mains, and Motor
Wires

1.3.4 Control Terminals

All control cable terminals are located underneath the
terminal cover in front of the frequency converter. Remove
the terminal cover using a screwdriver.
NOTICE
See the back of the terminal cover for outlines of control
terminals and switches.
Do not operate switches with power on the frequency
converter.
Set parameter 6-19 Terminal 53 Mode according to Switch
4 position.
12
®
VLT Micro Drive FC 51
®
Micro Drive FC 51 Decoupling
®
Micro Drive FC 51 Design Guide.
Danfoss A/S © 10/2017 All rights reserved.
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Illustration 1.3 Removing Terminal Cover
Off=PNP terminals 29
Switch 1
On=NPN terminals 29
Off=PNP terminal 18, 19, 27 and 33
Switch 2
On=NPN terminal 18, 19, 27 and 33
Switch 3 No function
Off=Terminal 53 0–10 V
Switch 4
On=Terminal 53 0/4-20 mA
1)=default setting
Table 1.5 Settings for S200 Switches 1–4
Illustration 1.4 S200 Switches 1–4
Illustration 1.5 shows all control terminals of the frequency
converter. Applying start (terminal 18) and an analog
reference (terminal 53 or 60) make the frequency converter
run.
1)
1)
1)
MG02BC4P