Installing The Drive - Danfoss VLT Lift Drive LD 302 Installationshandbuch

VLT® Lift Drive LD 302
Installation Guide
• Convey the currents back to the drive using a metal mounting plate. Ensure good electrical contact from the mounting plate
through the mounting screws to the metal frame of the enclosure.
• If the shield connection points have a voltage potential difference, connect a low impedance equalizing wire parallel to the
shielded cable.
• When using relays, control cables, a signal interface, fieldbus, or brake, connect the shield to the enclosure at both ends. If the
ground path has high impedance, is noisy, or is carrying current, break the shield connection on 1 end to avoid ground current
loops.

1.8 Installing the Drive

The installation location is important.
Full output current is available when the following installation conditions are met. For temperatures and altitudes outside this
range, consult the Derating section in the VLT® Lift Drive LD 302 Operating Instructions.
• Maximum surrounding air temperature: 45
• Minimum permitted surrounding air temperature: 0
• Altitude < 1000 m (3280 ft) above sea level.
Procedure
1. Identify the enclosure size. See
2. Make sure that the operating environment and electrical installation meet the following standards.
- a. Indoor unconditioned/pollution degree 2.
- b. Overvoltage category 3.
3.
Review the wiring schematics with or without motor contactors, depending on the application. See step 1 in the Illustra-
tions section.
All wiring must comply with local and national regulations regarding cross-section and ambient temperature require-
ments. Loose connections can cause equipment faults or reduced performance. Tighten the terminals according to the
proper torque value shown in step 9.
4.
Review the wiring schematic for STO wiring. See step 2 in the Illustrations section.
5. Review the fuse specifications. See step 3 in the Illustrations section.
The drive may be suitable for use on a circuit capable of delivering up to 100 kA short circuit current rating (SCCR) at
400 V.
6. Review the power cable specifications. See step 4 in the Illustrations section.
Use copper wire with a minimum 70
structions.
7. Install the drive following the numbered steps in the Illustrations section. Certain illustrations/steps pertain to specific en-
closure sizes and are marked as such.
a.
- Attach accessory bag components to the drive (step 5).
b.
- Mount the drive on or against a solid, non-combustible mounting surface such as concrete or metal (step 6). En-
sure proper cooling by providing minimum clearance above and below the drive.
- c. Create openings in the cable entry plate (step 7).
d.
- Install the control wiring (step 8).
e.
- Install the motor, mains, and ground wiring (step 9).
- f. Route the control cables (step 10)
8. Securely fasten the cover to the drive.
9. Perform initial drive and motor setup. Consult the VLT® Lift Drive LD 302 Operating Guide.
Functional safety options require extra wiring and parameter configuration. See the specific functional safety operating
guide, such as the Safe Torque Off Operating Guide, for more information on installing the safety option.
Danfoss A/S © 2022.09
º º
C (113 F) average over 24 hours and 50
º º
C (32 F).
Illustration 1.
º º
C (158 F) rating. For aluminum wire, see the VLT® Lift Drive LD 302 Operating In-
º º
C (122 F) for 1 hour.
AN41482598237301-000101 / | 9
Installation