Danfoss VLT series Service Manual

6-24
VLT is a registered Danfoss trademark
Figure 6-15. D2 IGBT Modules (3 of 3)
IGBT module
Retaining screw
(Step 13)
13. Remove 2 IGBT modules by removing 16
retaining screws (8 per module) and slide modules
free from under bus bars.
14. Clean heatsink surface with mild solvent or alcohol
solution.
REASSEMBLY
1. Replace IGBT module in accordance with
instructions provided with replacement unit.
2. Reassemble remaining parts in reverse order of
their removal.
3. Reinstall module and mounting screws. Tighten
remaining T25 and 8mm screws to 20 in-lbs (2.25
Nm) and T30 and 10 mm to 35 in-lbs (4 Nm).

Danfoss VLT series Specifications

General

Series	VLT
Category	DC Drives
Output Voltage	0-100% of input voltage
Protection Features	Overvoltage, Undervoltage, Overcurrent, Overtemperature, Short Circuit, Ground Fault
Communication Interfaces	Profibus, CANopen
Enclosure Rating	IP20, IP21, IP55, IP66
Cooling Method	Forced Air Cooling, Convection Cooling
Control Mode	Sensorless Vector, Closed Loop Vector
Ambient Temperature	-10°C to +50°C (14°F to 122°F)