Drive Module Technical Specifications; Motor Cable Sizing; Electronic Control System - Danfoss VTT Series Applications And Installation Manual

Drive Module Technical
Specifications
Table 3
Electrical Data

Motor Cable Sizing

Electronic Control System

Overview of the VTT Compressor
Model
Nominal Power output (kW)
FLA
LRA
380 V
400 V
460 V
575 V
Recommended Cable Type
Recommended Cable size, mcm (AWG)
Recommended Ground cable size, (AWG )
380 V, 400 V and 460 V
575 V
The minimum motor cable sizes listed are for factory full load current. Cable sizes for any amperage setting
below the factory settings should be sized according to local standards using the flexible locomotive
copper cable.
• 2 cables per phase, 6 total from the drive to
the motor.
• Using two cables run each of the three phases
through each conduit.
It is recommended to keep the motor cable length as short as possible, preferably not to exceed 5 m (15').
The control system architecture consists of three
electronic boards:
• Compressor Control Module (CCM)
• Pulse Width Modulator (PWM)
• Compressor Interface Module (CIM)
Mains Input AC Current
380 V
400 V
460 V
575 V
380 V
400 V
460 V
575 V
Maximum Output Current
Minimum Motor Cable Sizes
Flexible Locomotive (Stranded) Copper
2x3/0 per phase
Max external mains AC fuses (A)
NOTE
Phase cable
• Flexible locomotive (stranded) copper cable
• Cables should be shielded or Screened
• See Table 3 for sizing
• Cables should be shielded or Screened
Ground cable
• #1 AWG copper cable
NOTE
The CCM is the center point for all electronics
in the compressor and communicates with
the PWM board, CIM board, and Drive Module.
Communication between the compressor and
chiller controller is accessed through the CIM.
M-AI-VT-001-EN Rev.C.1
N165 N232 N262
165 232 262
271 380 405
235 330 378
- - 333
188 264 TBD
271 380 419
235 330 416
- - 366
TBD TBD TBD
318 424 438
318 424 406
263 350 395
TBD TBD TBD
2x4/0 per phase
#2 #2
400 550 630
TBD TBD
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