Danfoss VLT series Service Manual

7-6
VLT is a registered Danfoss trademark
7.9 Soft Charge Resistor
1. Remove input terminal plate assembly in
accordance with procedure.
2. Disconnect MK4 connector on soft charge card.
3. Loosen top retaining nut (8 mm) on soft charge
resistor.
4. Remove bottom retaining nut (8 mm) on soft
charge resistor.
5. Lift bottom of soft charge resistor and remove
resistor by sliding down.
Reinstall in reverse order of this procedure. Tighten 8 mm
retaining nuts to 20 in-lbs (2.3 Nm).
Soft charge resistor
Figure 7-7. Soft Charge Resistor
MK4 connector
(Step 2)
Soft charge card
Top retaining nut
(Step 3)
Bottom retaining nut
(Step 4)

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)