EATON MVX9000 Variable Frequency Drive

EATON MVX9000 Variable Frequency Drive

Product Overview

Cutler Hammer, a subsidiary of Eaton's electrical business ®  The MVX9000 sensor vector variable frequency drive is an AC speed control device based on a 32-bit microprocessor and IGBT technology, designed specifically for precise speed control of three-phase induction motors. This series of drivers covers a power range from 0.25HP to 10HP and supports multiple voltage levels such as 115V, 230V, 460V, and 575V, meeting the needs of industrial automation, HVAC, water pumps, fans, and other applications.

MVX9000 adopts sensorless vector control technology, which can achieve high starting torque and excellent low-speed performance without the need for an encoder. Its compact structure, simple installation method, and rich standard configuration make it an ideal choice for occasions with strict requirements for installation space.

Core Technology and Performance Characteristics

1. Sensor vector control

MVX9000 adopts advanced sensor vector control algorithm, combined with automatic tuning function, which can achieve:

200% starting torque: ensuring the reliability of heavy-duty starting

Precise low-speed control: able to maintain stable torque output near zero speed

Speed regulation accuracy: ± 0.5% base speed, meeting the requirements of precision speed regulation

Constant torque and variable torque modes: suitable for different load characteristics

2. IGBT inverter technology

The use of insulated gate bipolar transistors (IGBT) as power switching devices has the following advantages:

Low noise operation: high carrier frequency reduces motor electromagnetic noise

High efficiency: The typical value of the overall efficiency exceeds 95%

Smooth output waveform: reduce motor harmonic losses and temperature rise

3. Wide frequency range

The output frequency can be set arbitrarily between 0.1 and 400Hz to meet the requirements of special high-speed or low-speed applications.

4. Overload capacity

The standard configuration has a 150% overload capacity that lasts for 60 seconds, ensuring that it does not trip under short-term impact loads.

5. Comprehensive protection function

overcurrent protection

Overvoltage/undervoltage protection

overheat protection

Ground fault protection

External fault input

Automatic restart (4 modes to choose from)

Operation interface and human-computer interaction

1. Detachable numeric keypad

The MVX9000 comes standard with a detachable keyboard with a 4-character LED display, providing the following functions:

Status display: frequency, current, user-defined parameters

Diagnostic information: Last 3 fault records and causes

LED indicator lights: 7 status LEDs (run/stop, forward/reverse, Hz, A, etc.)

Operation keys: start/stop, speed control (digital or potentiometer), reset, programming keys

2. Programming and Debugging

The keyboard layout is clear, the parameter grouping is reasonable, and it supports online modification and storage. Users can complete all parameter settings through the keyboard without the need for additional software.

3. Remote operation options

Remote keyboard kit (MVXRMM) can be selected to achieve cabinet door installation and facilitate on-site operation.

Input/output and control functions

1. Analog input

2-channel programmable analog input: supports 0-10V DC or 4-20mA signals

10V DC reference power supply: used for external potentiometers (1-2k Ω)

2. Digital input

6-way programmable digital input: configurable for start/stop, forward/reverse, jog, fault reset, multi-stage speed selection, and other functions

3. Output signal

1 programmable digital output: open collector

1-channel programmable relay output: C-type contact (normally open+normally closed), can be used for fault alarm, operation indication, etc

1-channel analog monitoring output: selectable frequency or current signal

4. PID control

Equipped with a built-in PID regulator, it can directly perform closed-loop control on process variables such as pressure, flow rate, temperature, and liquid level without the need for an external controller.

5. Multi speed and frequency hopping

7 preset speeds: selected through a combination of digital inputs

3 jumping frequencies: adjustable width to avoid mechanical resonance points

6. Acceleration and deceleration control

Independently adjustable acceleration/deceleration time: 0.1 to 3000 seconds

S-curve acceleration and deceleration: optional, suitable for devices sensitive to acceleration changes

7. Braking function

Built in DC brake: Inject DC current during shutdown to achieve rapid braking

Dynamic braking unit: built-in chopper, can be connected with external braking resistor (optional)

8. Communication interface

RS-485 serial communication: standard configuration, supports Modbus RTU protocol

DeviceNet module: optional (MVXDNN) for easy access to industrial networks

Technical specifications and selection

1. Power range

Voltage level, power range, input phase number

115V 1/4-1HP single-phase

230V 1/2-7.5HP single-phase/three-phase

460V 1-10HP three-phase

575V 1-10HP three-phase

2. Input power supply

Voltage tolerance:

115V：-10% ~ +10%

230V：-10% ~ +5%

460V：-10% ~ +10%

575V：-15% ~ +10%

Frequency: 50/60Hz ± 3Hz

Power factor:>0.95

Efficiency:>95%

3. Environmental requirements

Operating Temperature

0~50 ° C (below 7.5HP)

0~40 ° C (7.5HP and above)

Humidity: 20%~90% (without condensation)

Altitude: ≤ 1000 meters (higher than this, it needs to be downgraded for use)

Protection level: IP20 (open rack)

4. Heat dissipation data

The typical thermal losses of different models at a carrier frequency of 9kHz are shown in the following table (excerpt):

Model Power Heat Loss (W)

MVXF25A0-1 1/4HP 115V 20

MVX001A0-2 1HP 230V 38

MVX003A0-4 3HP 460V 110

MVX010A0-5 10HP 575V 211

5. Selection of braking resistor

The MVX9000 has a built-in brake chopper and can be equipped with brake resistors as needed. The following table shows a typical configuration (230V series example):

Motor power braking resistor kit resistance value/power braking torque

1/2HP K13-000034-0821 200Ω / 180W 220%

2HP K13-000034-0824 70Ω / 300W 125%

5HP K13-000034-0825 40Ω / 400W 125%

7.5HP K13-000034-0826 30 Ω/500W (2 in parallel) 125%

6. External dimensions

Power Range Width (mm) Height (mm) Depth (mm) Weight (kg)

1/4-3HP 100 151 145 2.8

5-7.5HP (230V) 125 220 193 5.5

5-10HP (460V/575V) 125 220 193 5.5

Selection of Enclosed Drivers

MVX9000 can also provide multiple levels of protection for enclosed models, suitable for harsh industrial environments.

1. Protection type

NEMA 1: Universal Indoor, Ventilated

NEMA 3R: Rain resistant, suitable for outdoor use

NEMA 12: Dustproof, Industrial Environment

NEMA 4X: Waterproof, corrosion-resistant, made of stainless steel material (304 or 316)

2. Configuration options

Non combination type: only includes frequency converter

Combination type: with isolating switch or circuit breaker

Bypass type: 2-contactor or 3-contactor bypass, including overload protection

3. Counter control options

Provide multiple combinations of control components that can be factory installed or on-site modified:

Start/Stop button

Operation indicator light (red/green)

Hand/stop/automatic selection switch

Forward/Reverse/Stop button

Speed potentiometer

4. Certification

UL listed

CUL listed (compliant with CSA standards)

ABS type approval

CE mark (requires EMI filter)

Selection and ordering information

1. Example of open rack selection (partial)

Power Voltage Input Current Output Current Order Number

1/2HP 230V 5.8/3.4A 2.5A MVXF50A0-2

1HP 460V —/4.2A 3.0A MVX001A0-4

3HP 575V —/5.9A 4.2A MVX003A0-5

7.5HP 230V —/31A 25A MVX007A0-2

10HP 460V —/20.6A 18A MVX010A0-4

2. Example of Closed Type Selection

Non combination NEMA 1:

Power Voltage Order Number

1HP 230V ECS80C1BAA-C1

5HP 460V ECS80F1CAA-C1

Combination isolation switch type NEMA 1:

Order number for power voltage fuse

2HP 230V 30A ECSB1D1BAC-C1

7.5HP 460V 60A ECSB1G1BAC-C1

Combination circuit breaker type NEMA 4X stainless steel:

Order number for power voltage circuit breaker

1HP 460V 15A ECS82C4CAA-C1

5HP 230V 30A ECS82F4BAA-C1

Optional accessories

Accessory Type Order Number

Copy keyboard MVXCOPY

Remote keyboard kit MVXRMM

DIN rail installation kit MVXDR

DeviceNet Communication Module MVXDNN

NEMA 1 Small Cabinet Kit MVXENCSC

Input reactor (3%) K64-000989-2091, etc

EMI filter K13-000034-0111, etc

Dynamic braking resistor K13-000034-0821, etc