Product Design Guide - Danfoss VLT DMS 300 Manual

The decentralized product range
The Danfoss decentralized concept covers motor
controls ranging from motor starters/soft starters
to variable frequency drives.
Motor starters and soft starters (DMS 300) make
start and stop of your application smoother and
smarter than ordinary DOL (Direct On Line) operation
but do not affect operation further.
Variable frequency drives (FCD 300) are used
for following requirements:
• Adjustable speed
• Precise speed
• Defined speed ramps at start or/and stop
• Shorter stop times (braking)
Danfoss decentralized motor controls range from
0.24 HP (0.18 kW) to 4 HP (3 kW) (connects to up
to 5 HP (4 kW) motors). This chapter lists several
optional features and accessories available.
Flexible installation options
Danfoss decentralized motor controls FCD 300 and
DMS 300 series can be adapted for mounting using
the following options - each offering specific benefits:
1. Stand alone close to the motor ("wall-mounted")
• Free choice of motor brand
• Easy retrofitting to existing motor
• Easy interfacing to motor (short cable)
• Easy access for diagnosis and optimal serviceability
MG.90.F2.22 - VLT is a registered Danfoss trademark
Decentral Solutions
2. Mounted directly on the motor ("motor-mounted")
• Fair choice of motor brands
• No need for shielded motor cable
3. "Pre-mounted" on Danfoss Bauer
geared motors
•
A fixed combination of motor and electronics
supplied by one supplier
• Easy mounting, only one unit
• No need for shielded motor cable
• Clear responsibility regarding the complete solution
As the electronic parts are common - same function
of terminals, similar operation and similar parts
and spare parts for all drives - you are free to
mix the three mounting concepts.
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