Commissioning; Safety Instructions; Before Applying Power; Applying Power - Danfoss VLT FC 280 Operating Manual

Operating Guide | VLT® Midi Drive FC 280

Commissioning

5

Safety Instructions

5.1
See chapter Safety for general safety instructions.
HAZARDOUS VOLTAGE
AC drives contain hazardous voltage when connected to the AC mains or connected on the DC terminals.
Failure to perform installation, start-up, and maintenance by qualified personnel can result in death or serious
injury.
Only qualified personnel must perform installation, start-up, and maintenance.
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The front covers with warning signs are an integrated part of the drive and considered safety covers. The covers must be in place
before applying power and at all times.
5.2

Before Applying Power

1.
Close the safety cover properly.
2. Check that all cable glands are firmly tightened.
3.
Ensure that input power to the unit is off and locked out. Do not rely on the drive disconnect switches for input power isolation.
4.
Verify that there is no voltage on input terminals L1 (91), L2 (92), and L3 (93), phase-to-phase, and phase-to-ground.
5. Verify that there is no voltage on output terminals 96 (U), 97 (V), and 98 (W), phase-to-phase, and phase-to-ground.
Confirm continuity of the motor by measuring Ω values on U–V (96–97), V–W (97–98), and W–U (98–96).
6.
7.
Check for proper grounding of the drive and the motor.
8.
Inspect the drive for loose connections on the terminals.
9. Confirm that the supply voltage matches the voltage of the drive and the motor.

Applying Power

5.3
1. Confirm that the input voltage is balanced within 3%. If not, correct the input voltage imbalance before proceeding. Repeat this
procedure after the voltage correction.
2. Ensure that any optional equipment wiring matches the installation application.
3.
Ensure that all operator devices are in the OFF position. Panel doors must be closed and covers securely fastened.
4.
Apply power to the unit. Do not start the drive now. For units with a disconnect switch, turn it to the ON position to apply
power to the drive.

Local Control Panel Operation

5.4

Introduction

5.4.1
The drive supports the numerical local control panel (NLCP), the graphic local control panel (GLCP), and blind cover. This section
describes the operations with NLCP and GLCP.
The drive can also be programmed from the MCT 10 setup software on the PC via the RS485 COM port. This software can be
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ordered using code number 130B1000 or downloaded from the Danfoss Website:
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VLT® Motion Control Tool MCT 10 |
Commissioning
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AQ381425076031en-000201 / 130R1223