Connecting To Mains And Motor; Control Terminals - Danfoss VLT FC 51 Quick Manual

Quick Guide
1 1

1.3.5 Connecting to Mains and Motor

The frequency converter is designed to operate all
standard three-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 maximum cross-section 16
mm 2 /6 AWG (M4 and M5).
•
Use a shielded/armoured 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 Instruction MI02B.
•
Also see EMC-Correct Installation in Design Guide
MG02K.
1. Mount the earth wires to earth 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 Earth Cable, Mains and Motor Wires

1.3.6 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.
NOTE
See back of terminal cover for outlines of control terminals
and switches.
NOTE
Do not operate switches with power on the frequency
converter.
6-19 Terminal 53 Mode must be set according to Switch 4
position.
6
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VLT Micro Drive Quick Guide
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Illustration 1.3 Removing Terminal Cover
Switch 1:
Switch 2:
Switch 3:
Switch 4:
*=default setting
Table 1.7 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 (term. 18) and an analog
reference (term. 53 or 60) make the frequency converter
run.
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MG02B702 - VLT is a registered Danfoss trademark
*OFF=PNP terminals 29
ON=NPN terminals 29
*OFF=PNP terminal 18, 19, 27 and 33
ON=NPN terminal 18, 19, 27 and 33
No function
*OFF=Terminal 53 0-10 V
ON=Terminal 53 0/4-20 mA