Electrical Installation; Electrical Installation In General; It Grid; Mains And Motor Connection - Danfoss VLT Compressor Drive CDS 803 Bedienungsanleitung

VLT® Compressor Drive CDS 803
Operating Guide

3.2 Electrical Installation

3.2.1 Electrical Installation in General

All cabling must comply with national and local regulations on cable cross-sections and ambient temperature. Copper conductors
are required. 75 °C (167 °F) is recommended.
Table 9: Tightening Torques for Enclosure Sizes H3–H6, 3x200–240 V & 3x380–480 V
Power [kW (hp)]
Enclo- IP protec- 3x200–240 V
sure size tion rating
H3 IP20 –
H4 IP20 6.0–7.5 (8.0–
10)
H5 IP20 10 (15)
H6 IP20 –

3.2.2 IT Grid

IT GRID
Installation on isolated mains source, that is, IT mains.
-
Ensure that the supply voltage does not exceed 440 V (3x380–480 V units) when connected to mains.
This is only relevant for 200–240 V and 380–400 V drives in power sizes 6.0–10 kW (8.0–15 hp).
Open the RFI switch by removing the screw on the side of the drive when at IT grid.
1
Illustration 2: IP20, 200–240 V, 380–480 V, 6.0–10 kW (8.0–15 hp)
1 EMC screw
On 380–480 V, 18.5–30 kW (25–40 hp) units, the RFI filter cannot be switched off.

3.2.3 Mains and Motor Connection

3.2.3.1 Introduction

The drive is designed to operate Danfoss VZH Compressors.
Danfoss A/S © 2019.12
Torque [Nm (in-lb)]
3x380–480 V Mains Motor
6.0–7.5 (8.0–10) 0.8 (7) 0.8 (7)
10–15 (15–20) 1.2 (11) 1.2 (11)
18.5–22 (25–30) 1.2 (11) 1.2 (11)
30 (40) 4.5 (40) 4.5 (40)
C A U T I O N
N O T I C E
DC connec- Control ter-
tion minals
0.8 (7) 0.5 (4)
1.2 (11) 0.5 (4)
1.2 (11) 0.5 (4)
– 0.5 (4)
AQ32174876762701-000101 / 130R0627 | 11
Installation
Ground Relay
0.8 (7) 0.5 (4)
0.8 (7) 0.5 (4)
0.8 (7) 0.5 (4)
3 (27) 0.5 (4)