Danfoss VLT Design Guide

Illustration 5.12 Cable entry holes for enclosure C1. The
suggested use of the holes are purely recommendations and
other solutions are possible.
Illustration 5.13 Cable entry holes for enclosure C2. The
suggested use of the holes are purely recommendations and
other solutions are possible.
Legend:
A: Line in
B: Brake/load sharing
C: Motor out
D: Free space
5.2.7 Gland/Conduit Entry - IP21 (NEMA 1)
and IP54 (NEMA12)
Cables are connected through the gland plate from the
bottom. Remove the plate and plan where to place the
entry for the glands or conduits. Prepare holes in the
marked area on the drawing.
NOTE
The gland plate must be fitted to the frequency converter
to ensure the specified protection degree, as well as
ensuring proper cooling of the unit. If the gland plate is
not mounted, the frequency converter may trip on Alarm
69, Pwr. Card Temp
Cable entries viewed from the bottom of the frequency
converter - 1) Mains side 2) Motor side
Illustration 5.14 Example of Proper Installation of Gland Plate.
Illustration 5.15 Frame Sizes D1 + D2
Illustration 5.16
How to Install
VLT
®
Refrigeration Drive Design Guide
66 MG16G102 - VLT
®
is a registered Danfoss trademark
5
5

Danfoss VLT Specifications

General

Frequency	50/60 Hz
Enclosure	IP20, IP21, IP55, IP66
Series	VLT
Control Technique	Flux Vector Control
Output Voltage	0-Vinput
Control Method	Fieldbus
Communication Interface	PROFIBUS, CANopen
Protection Features	Overload, Overvoltage, Undervoltage, Short Circuit, Ground Fault
Cooling Method	Liquid Cooled
Storage Temperature	-25°C to +70°C
Relative Humidity	5-95% non-condensing
Altitude	Up to 1000m (3280ft) without derating, up to 4000m (13120ft) with derating
Operating Temperature	-10°C to +50°C (14°F to 122°F)