Danfoss VLT HVAC Drive User Manual

 Single phase applications
 High temperature applications which require de-rating of the electrical ratings
 Marine applications with more severe environmental conditions
Other applications might also affect the electrical ratings.
Consult the relevant clauses in these instructions and in the
VLT® HVAC Drive Design Guide, MG.
11Bx.yy
for information about the electrical ratings.
Installation requirements:
The overall electrical safety of the adjustable frequency drive requires special installation consid-
erations regarding:
 Fuses and circuit breakers for overcurrent and short-circuit protection
 Selection of power cables (line, motor, brake, load sharing and relay)
 Grid configuration (IT,TN, grounded leg, etc.)
 Safety of low voltage ports (PELV conditions).
Consult the relevant clauses in these instructions and in the
VLT® HVAC Drive Design Guide for
information about the installation requirements.
VLT
®
HVAC Drive Instruction Manual 1. Safety
MG.11.A4.22 - VLT
®
is a registered Danfoss trademark 5
1

Danfoss VLT HVAC Drive Specifications

General

Type	VLT HVAC Drive
STO (Safe Torque Off)	Yes
Enclosure	IP20
Output Frequency	0-500 Hz
Brake Chopper	Built-in (depending on frame size)
EMC Filter	Built-in (depending on frame size)
Communication	Ethernet
Power Range	0.37 kW to 630 kW
Input Voltage	200-240V, 380-480V, 525-600V
Protection Features	Overload, Overvoltage, Undervoltage, Short Circuit, Ground Fault
Ambient Temperature	-10°C to +50°C (with derating above +40°C)
Storage Temperature	-25°C to +70°C
Relative Humidity	5-95% (non-condensing)
Cooling Method	Air-cooled