Delta Medium Voltage Drive
MVD2000
System Technology Cascaded multilevel inverter based on IGBT devices
Efciency >98% (Rated, excluding transformer)
Input
Voltage range -10%~+10% (normal operation), -10%~-30% (continuous running at derated speed)
Frequency 50Hz/60Hz (-2%~+2%)
Control power supply AC380 V (three-phase four-wire system) or AC220V, 3kVA single-ohase capacity
Input current harmonic Meets IEEE519 standard, without input lter
Power factor >0.96 (lagging at rated speed and power)
Output
Voltage 3.3kV~11kV
Max. output frequency 75Hz
Overload capacity 150% per min/10 min. (standard), other options available
Start-up torque 150% rated torque (standard), other options available
Speed regulation range 1%~100% (with encoder) , 5%~100% (without speed sensor)
Speed control resolution
(steady state)
±0.01% (with speed sensor, depending on sensor accuracy), ±0.5% (without speed
sensor)
Speed response
bandwidth
60rad/s (with speed sensor), 20rad/s (without speed sensor)
Current response
bandwidth
600rad/s
Control
Parameters
Control methods Vector control with encoder and encoderless
Modulation method SVPWM
Acceleration &
deceleration time
0~3000s (programmable)
Alarms
Power cell under-voltage, analog reference loss, cooling fan over-temperature, cooling
fan power supply failure, cabinet over-pressure, air lter blocked, control power supply
failure, transformer high-temperature, HMI communication failure, ac input under-
voltage, UPS failure, PLC communication failure, ying start failure
Protections
Over-current, over-load, short-circuit, input over-voltage, input/output phase loss, input
voltage power loss, output fault to ground, transformer over-temperature, power cell
communication failure, optical ber communication failure, high-voltage cabinet door
open, control power supplies failures, dc auxiliary power supply failure, power cell over-
temperature, power cell over-voltage, power cell IGBT gate drive failure, over-speed
protection, under-speed protection, reverse rotation protection, motor stall protection
Functions
Speed skipping, PID regulator, fault event log, ying start, power loss ride through,
automatic restart, auto-tuning, S-curve acceleration, adaptive acceleration and
deceleration, DC braking current injection, forward/reverse rotation selection, jogging,
system bypass, synchronous motor transfer option, master-slave control
Analog input 0~10V/4~20mA, two channels (expandable)
Analog output 0~10V/4~20mA , four channels, (expandable)
Digital input / output
10-channel input, 8-channel output (expandable)
Human machine interface Chinese/English touch-screen LCD display
MVD2000 Specications & Parameters
Cascaded Output Voltage Map Power Unit Schematic Diagram
580
580
580
580
580
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580
580
580
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580
580
580
N
＋
＋
R
S
T
F1
F3
D1 D3 D5
D2
D4 D6
S1 S3
S2
S4
F2
U
V
＋
Q1
V
dc
3840V Phase
voltage
6000V Line
voltage
Delta Medium Voltage Drive
6
7
(20 paginas)
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