Danfoss VLT series Service Manual

6-7
VLT is a registered Danfoss trademark
6.9 Soft Charge (SC) Resistors D1 Units
1. Remove capacitor bank per instruction.
2. Remove input terminal mounting plate per
instructions.
3. Note the color coding for each of three wires
attached to terminal 1 for each SCR/Diode
module. Ensure that correct wire is attached to
applicable stud upon reassembling. Remove
wiring from studs. Remove retaining screw (T25)
from terminal 1 of each of 3 SCR/Diode modules
and remove bus bar.
CONTINUED ON NEXT PAGE
Retaining screw
(Step 3)
Bus bar (BB2)
(Step 3)
Soft Charge Resistor
Figure 6-8. D1 Soft Charge Resistor (1 of 3)

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)