2012年12月21日星期五

Danfoss Frequency Converters VLT® 2800 Series


 VLT® 2800 Series

VLT® 2800 Series

The VLT® 2800 series is among the smallest multi purpose drives in the market. Designed for space saving side by side mounting. Choose to have it with e.g. Motor Coils, RFI filter, LC+1B fi...

Features and benefits

Product Range0.55 - 18.5 kW
(3 phase 380 - 480 V ± 10 %; 50/60 Hz)
0.37 - 1.5 kW
(Combined 1 and 3 phase 200 - 240 V ± 10 %; 50/60 Hz)
2.2 - 3.7 kW
(3 phase 200 - 240 V ± 10 %; 50/60 Hz)

Variable output frequency between 0 and 1000 Hz

Product safety100 % short-circuit proof
100 % earth fault protection
Mains transient protection
Switching on input
Switching on output
Galvanic isolation
Designed according to EN 50178

Speed compensation precise stopBetter process control
Same stopping distance independent of initial motor speed

Precise stopInterrupt controlled stop
Higher process repeatability
Well defined stopping

Counter stop
Accurate positioning
High frequency input (65 kHz)
24 V incremental encoder input
AB encoder input as option




Features and benefits

Automatic motor tuning Perfect match between motor and drive
Measures the stator resistance (RS) Better shaft performance
Measurements done without applying torque
Checks for missing motor phases

No derating at 45°CThe VLT® 2800 will operate normally (no need for duration) in environment temperatures up to 45°C 24 hour average max. 40°C

Flexible mountingHorizontal mountingVertical mounting
True side-by-side mounting
No deratingAlso applies to modules
Temperature controlled fan

Cold plate technology
Reduced heating in cabinet
Denser installation
Higher enclosure class cabinets
Protection against:
- Dust
- Dirt
- Humidity
Heat dissipates through the back of the drive






Features and benefits

Communication
DeviceNet
ModBus RTU
Metasys N2
Profibus DP, optional

Fieldbus systems

Profibus DP 3 or 12 Mbit/sUp to 127 nodes per installation
Homepage: www.profibus.com

DeviceNet Up to 500 kbit/sUp to 64 nodes per installationHomepage: www.odva.com

EMC filter and DC coilsCompliance with EMC Standards. Built-in EN 55011 1A filter, 25 m screened cable.
No EMC disturbance.
EN 55011 1B filter available as module.
IT mains compatible version with RFI filter (up to 4 kW).
VLT 2880-2882 with RFI-switch.

Braking facilities
DC-braking - approx. 20% braking torque
AC-braking - approx. 20% braking torque
Dynamic braking
- Brake chopper built-in
- 160% braking torque
LCP2 Alpha numeric display, with copy function
MCT10 software

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