Starting The Drive; Commissioning The Ac Drive; Pre-Charging The Drive; Measuring The Cable And Motor Insulation - Danfoss iC7-60EA3N05-206A Operating Manual

iC7-Automation Air-cooled Enclosed Drives
Operating Guide

8 Starting the Drive

8.1 Commissioning the AC Drive

Follow these instructions to commission the AC drive.
Read the safety instructions in
Procedure
1. Make sure that the motor is installed correctly.
2.
Make sure that the motor is not connected to mains.
3. Make sure that the AC drive and the motor are grounded.
4.
Make sure to select the mains cable and the motor cable correctly.
For information on cable selections, see
5. Make sure that the control cables are as far as possible from the power cables.
6. Make sure that the shields of the shielded cables are connected to a grounding terminal that is identified with the ground-
ing symbol.
7. Check the tightening torques of all the terminals.
8.
Make sure that the cables do not touch the electrical components of the drive.
9. Make sure that the common input +24 V is connected to an external power source and the ground of the digital input is
connected to ground of the control terminal.
10. Check the quantity of cooling air.
11. Make sure that there is no condensation on the surfaces of the AC drive.
12. Make sure that there are no unwanted objects in the installation space.
13.
Before connecting the drive to mains, check the installation and the condition of all the fuses and other protective devices.
For information on fuse selections, see
14.
Check that all Start/Stop switches connected to the I/O terminals are in the Stop position.
15. Perform the cable and motor insulation checks, see
16.
For information on setting the parameters, see the relevant application guide.

8.2 Pre-charging the Drive

Before starting the drive, the drive must be pre-charged.
Procedure
1.
Check that the pre-charging main switch (-QB6) is closed. It is located inside the cabinet.
2. Select automatic or manual pre-charging with the switch -SF12.
3.
Enable mains with the switch -SF11.
4. Connect the power supply.
5.
For frames 2 x EA10 + 2 x EI10 and smaller, close the drive main switch -QB0.

In the automatic mode, the drive starts pre-charging immediately when the power is connected.
6. In the manual mode, start the pre-charging by pushing the Run button on the AFE control panel or by giving a start com-
mand from remote PLC or fieldbus.

When the pre-charging is complete, the drive automatically closes the main contactor or circuit breaker.

8.3 Measuring the Cable and Motor Insulation

Do these checks if necessary.
NOTE! AC drive is already measured at the factory.
• The insulation checks of the motor cable, see
• The insulation checks of the mains cable, see
• The insulation checks of the motor, see
Danfoss A/S © 2023.09
2.2 General Safety Considerations
10.5.1 General Cable Size
10.6.1 List of Fuse Size
N O T I C E
8.3.1 Insulation Checks of the Motor Cable
8.3.2 Insulation Checks of the Mains Cable
8.3.3 Insulation Checks of the Motor
and 6.1 Electrical Installation Safety
Information.
Information.
8.3 Measuring the Cable and Motor
Starting the Drive
and obey them.
Insulation.
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