Product details
Product Introduction
- Delta VFD4A8MS21ANSAA belongs to the MS-300 Series
- Compact vector control drive for industrial automation
- Supports 230 V, 1-phase input, 0.75 KW (1 HP) output
- Frequency range: 0 – 599 Hz, IP20 protection
- Optional EMC filter, built-in brake chopper
- Removable 5-digit LED keypad for remote operation
- Built-in RS-485 (Modbus) and multiple communication cards
Key Features
- Space-saving design – side-by-side mounting allowed
- High starting torque – 150% for 60 s (heavy duty)
- Fast load response – handles impact with DEB function
- Supports IM and PM motors – versatile motor control
- Built-in PLC – reduces external controller needs
- Enhanced braking – built-in chopper for quick stops
Technical Data
- Brand & Model
- Brand: Delta Electronics
- Model: VFD4A8MS21ANSAA
- Series: MS-300 Series
- Electrical Ratings
- Input: 230 V, 1-phase
- Motor Power: 1 HP / 0.75 KW
- Normal Duty Amps: 5 A (120% for 60 s, 150% for 3 s)
- Heavy Duty Amps: 4.8 A (150% for 60 s, 200% for 3 s)
- Measurement & Frequency
- Frequency range: 0 – 599 Hz
- Frequency resolution: 0.01 Hz
- Linear response: < ±0.5%
- Environmental Tolerance
- Temperature range: -10°C to +50°C
- Humidity: < 95% RH (non-condensing)
- IP20 protection (indoor use)
- Immunity: built-in EMC filter option
- Physical Dimensions
- Frame size: B2
- Weight: 1.8 lbs (0.82 kg)
- Size: 2.83 x 5.59 x 5.63 inches
- Communication & Compatibility
- Built-in RS-485 (Modbus)
- Optional: CANopen, PROFIBUS DP, DeviceNet, MODBUS TCP, EtherNet/IP, EtherCAT, PROFINET
- Compatible with IM and PM motors
Installation & Maintenance
- Mounting – side-by-side installation for space saving
- Cooling – ensure 10 cm clearance for airflow
- Wiring – use shielded cables for control signals
- Debugging – removable keypad for easy parameter setting
- Maintenance – periodic cleaning of heatsink fins
- Firmware update – via RS-485 or communication card
Certifications & Compliance
- CE, UL, RoHS compliant
- IP20 (IEC 60529)
- Overload capacity per heavy/normal duty
Package Contents
- 1 x VFD4A8MS21ANSAA drive
- 1 x removable keypad
- 1 x quick start guide
- 1 x mounting screws kit
- 1 x EMC filter (optional, if ordered)
Warranty & Shipping
- Warranty: 12 months from delivery
- Shipping: 12–24 hours dispatch
- Carriers: FedEx, UPS, DHL
Expert Review
- “This drive offers excellent torque at low speed. The DEB function saves energy during deceleration. It is reliable for continuous production lines.” – Senior Automation Engineer
- “The built-in PLC and multi-motor control reduce system cost. Easy to integrate with existing Modbus networks.” – Industrial Control Specialist
Manager’s Insight
- “Choosing VFD4A8MS21ANSAA means less downtime. Its compact size fits tight cabinets. The quick delivery and 12-month warranty give peace of mind.” – Product Manager, Powergear X
Applications & Suitable Equipment
- Rewinder machines – precise tension control
- Slitter machines – high dynamic response
- Printing machines – speed regulation
- Drawing machines – constant torque
- Coil winding machines – low-speed accuracy
- Machine tools – spindle drive
- Woodworking & textile machines – variable speed
Frequently Asked Questions
- Can I use this drive with a single-phase 230 V supply?
- Yes, it is designed for 1-phase 230 V input.
- Is the EMC filter included?
- No, it is optional. You can order it separately.
- How to set parameters without power?
- Use the external 24 V DC power option for parameter setting.
- What is the maximum cable length for motor?
- Keep motor cable under 50 m for best performance.
- Can I control multiple motors with one drive?
- Yes, it supports multi-motor control with proper settings.
- What happens during power loss?
- DEB function uses deceleration energy to keep control.
Experience-based Q&A
- How to avoid overcurrent during start?
- Increase acceleration time or use torque boost.
- Why does the drive trip occasionally?
- Check for loose wiring or excessive ambient temperature.
- Can I copy parameters to another drive?
- Yes, use the keypad copy function for quick setup.
Buying Guide
- Confirm input voltage: 230 V 1-phase only.
- Check motor power: up to 0.75 KW (1 HP).
- Select EMC filter if used in sensitive environments.
- Choose communication card for network integration.
- Consider heavy duty rating for high-starting-torque loads.
- Ensure IP20 is suitable for your cabinet.
For inquiries: sales@powergearx.com or +86 18030005825
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Original Source: https://www.powergearx.com/















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