5.5kW 220V - 380V Variable Frequency Drive (VFD/VSD) - SU600A-5R5G1B

VFD 5.5kW SU600A-5R5G1B - Single Phase 220V to Three Phase 380V Boost Drive

Model: SU600A-5R5G1B
Series: SU600A Vector Control Frequency Converter

Motor Power Capacity:
Rated for 5.5kW (approximately 7.5HP) three-phase 380V motors, with a rated output current of 13A.

Input Supply:
Single-phase 220V AC (±15%), 50/60Hz, suitable for standard residential and commercial electrical supplies.

Output Supply:
Three-phase 380V AC with adjustable voltage and frequency (0-380V). The integrated voltage boost function enables direct operation of 380V motors from a 220V input source.

Frequency Range:
Adjustable from 0 to 400Hz, allowing accurate motor speed control across low and high operating speeds.

Control Methods

V/F Control: Traditional volts-per-hertz control for general applications.

Sensorless Vector Control (SVC): Enhances torque output and speed stability, particularly at low speeds, without requiring an encoder.

Control Operating Features

PID Control Built-In: Supports closed-loop control for applications such as maintaining constant pressure or flow.

Multi-Speed Operation: Programmable stepped speeds via digital input control.

Jog / Inch Mode: Enables precise, short-duration motor movement for setup and maintenance tasks.

Communication

RS485 Interface: Integrated Modbus RTU protocol for straightforward integration into automation systems.

Protection & Reliability: Comprehensive internal protection including overcurrent, overvoltage, undervoltage, motor overload, VFD overheating, short-circuit, and phase-loss protection to ensure safe and dependable operation.

Inputs & Outputs: Multiple programmable analog inputs (0-10V and 4-20mA) for frequency reference, along with configurable digital inputs and outputs for external control signals.

Braking Performance: Includes a built-in braking unit to dissipate regenerative energy during motor deceleration through dynamic braking.

User Interface & Cooling: Features an intuitive digital keypad with a clear LED display for parameter adjustment, real-time operation monitoring, and fault diagnostics. An efficient forced-air cooling system helps maintain stable operating temperatures.

Compliance: Manufactured to meet international standards, including CE and RoHS compliance.

Dimensions:
250x155x198mm

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Electrical Commissioning: Keypad Control with Normally Closed External Stop

This example retains the VSD keypad RUN/STOP buttons and speed dial, and adds a normally closed (NC) external stop contact to input X4. It is intended for setup and functional testing by a qualified electrician.

Important: An X-input stop is a software-controlled operational stop. It is not Safe Torque Off (STO), electrical isolation, or a complete safety-rated emergency-stop system. Machinery requiring emergency stopping needs an appropriately designed and validated safety circuit.

These settings are based on the linked SU-600 manual. Confirm that the installed drive's model, firmware and parameter descriptions match before programming. The manual does not explicitly confirm keypad override or restart behaviour for this input; these must be verified during commissioning.

NC Stop Circuit Wiring

With the supply isolated and the drive's specified discharge time observed, connect a volt-free NC contact between X4 and COM. Confirm X4 is not already used for another function.

Connection: X4 → normally closed stop contact → COM

• Contact closed / button released: The external stop command is inactive. The keypad can command the drive to run.
• Contact open / button pressed: The external stop command becomes active.
• Broken wire: An open circuit should also activate the stop command. This does not provide protection against all wiring or drive failures.

Use the digital input COM terminal, not the analogue GND terminal. Do not apply mains voltage or an external supply to this contact circuit.

Three Main Parameter Settings

Input polarity: F2.29 controls all four input polarities. X1 = 1, X2 = 2, X3 = 4 and X4 = 8. If F2.29 is already nonzero, preserve the existing settings for X1-X3 and set the X4 inversion bit. Do not blindly overwrite an existing configuration.

Deceleration: A lower F0.11 value requests a faster stop. Begin with the existing setting and adjust through controlled testing. Excessively short ramps may cause an overvoltage trip or failure to achieve the requested stopping time. Check braking resistor requirements and suitability for the specific drive and load. The programmed ramp is not a guaranteed spindle stopping time.

Supporting Settings to Check

• F0.02 = 0: Keypad RUN/STOP control.
• F0.03 = 0: Speed reference from the keypad potentiometer, if this is the intended speed control.
• F1.04 = 0: Normal deceleration stopping.
• F2.28 = 0: Default level-triggered inputs; review existing assignments before changing.
• F1.00 = 00: Default start mode, with power-failure/abnormal restart disabled.
• F4.08 = 0: Automatic fault reset disabled.

Record the existing parameters before making changes. Confirm motor nameplate settings, motor connections and permitted machine speed before running. Avoid a factory reset, which may erase the existing motor and application setup.

Programming Using the Keypad

1. Stop the drive and ensure the machine cannot move unexpectedly.
2. Press PRG to enter the parameter menu.
3. Use ▲ / ▼ to select the required parameter. Use the digit-shift key where applicable to the fitted keypad.
4. Press ENT to view the parameter value.
5. Adjust the value and press ENT again to save.
6. Repeat for the remaining parameters, then press PRG to return to the operating display.
7. Reopen each changed parameter to confirm the saved value.

NC Contact and Drive Operation Tests

These are functional commissioning tests, not an insulation-resistance or electrical compliance test procedure. Perform wiring changes and continuity checks with the supply isolated and the drive discharged. Do not apply an insulation-resistance tester through the VSD electronics.

1. Check the contact with power isolated: With the switch circuit disconnected from the drive, confirm continuity when the button is released and an open circuit when pressed. Reconnect the circuit before powering up.
2. Closed-contact run test: With guards fitted, the machine clear and a suitable low test speed selected, release the stop button. Press keypad RUN and confirm normal operation.
3. Open-contact stop test: Press the external stop button. Confirm the drive stops even though the run command came from the keypad. Observe and record the actual stopping time.
4. Start-inhibit test: Leave the stop button pressed and try keypad RUN. The motor must remain stopped.
5. Release test: Release the stop button. The motor must remain stopped until a fresh, deliberate RUN command is given.
6. Open-wire test: Isolate and discharge the drive, disconnect and secure one stop-circuit conductor, then restore power under controlled conditions. Confirm RUN cannot start the motor. Isolate again before restoring the wiring.
7. Power-restoration test: Under controlled conditions, verify that restoring power does not cause an unexpected restart, including with the stop contact open.
8. Operating-speed test: Progressively test at the intended speeds and representative loads. Confirm acceptable stopping times and no drive trips.

If any stop, start-inhibit or restart-prevention test fails, do not put the machine into service with this configuration. Obtain the correct control arrangement for the installed drive and complete the machinery safety validation.

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SU-600 Technical Manual:

Compatible Part Numbers:
SU600A-5R5G1B