Commissioning; Safety Instructions; Before Applying Power; Applying Power - Danfoss VLT Decentral Drive FCD 302 Operating Manual

VLT® Decentral Drive FCD 302
Operating Guide

5 Commissioning

5.1 Safety Instructions

See 2.1 Safety Precautions for general safety instuctions.
HIGH VOLTAGE
AC drives contain high voltage when connected to AC mains input, DC supply, or load sharing. 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.

5.1.1 Before Applying Power

Procedure
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 no rely on the drive disconnect switches for input power isola-
tion.
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.
6.
Confirm continuity of the motor by measuring Ω values on U–V (96–97), V–W (97–98), and W–U (98–96).
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.

5.2 Applying Power

UNINTENDED START
When the drive is connected to the AC mains, DC supply, or load sharing, the motor may start at any time, causing risk of death,
serious injury, and equipment or property damage. The motor may start by activation of an external switch, a fieldbus command,
an input reference signal from the LCP or LOP, via remote operation using MCT 10 Set-up software, or after a cleared fault condi-
tion.
-
Press [Off] on the LCP before programming parameters.
-
Disconnect the drive from the mains whenever personal safety considerations make it necessary to avoid unintended motor
start.
-
Check that the drive, motor, and any driven equipment are in operational readiness.
Procedure
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.

5.3 Local Control Panel Operation

5.3.1 Local Control Panel

The local control panel (LCP) is the combined display and keypad on the front of the unit.
34 | Danfoss A/S © | 2020.07
W A R N I N G
W A R N I N G
Commissioning
AQ267036816112EN-000101 / 130R0208