Danfoss VLT series Service Manual

6-12
VLT is a registered Danfoss trademark
7. Remove twelve (T30) screws from output (lower)
side of IGBT modules.
8. Remove retaining nut (8mm) from each
intermediate IGBT output bus bar. Remove
intermediate IGBT bus bars.
9. Remove 4 nuts (10mm), two on either side,
connecting rectifier DC bus bars to main DC bus
bars. These are located to either side of SCR/
Diode modules.
CONTINUED NEXT PAGE
Figure 6-10. D2 SCR/Diode Module (2 of 4)
IGBT output retaining
screws (Step 7)
Retaining nut
(Step 8)
Intermediate IGBT output bus bar BB30
(Step 8)
Retaining screws
(Step 9)
Retaining screws
(Step 9)
IGBT module
Main DC bus bar BB25
(Step 9)
Bus bar BB27
Bus bar BB31
Bus bar BB30
Bus bar BB26

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)