# AutomationDirect SV2A-2040

Hardware · `SV2A-2040` · verification: source checked

The SV2A-2040 is a SureServo2 AC servo drive rated 400 W, fed from 110/230 VAC single- or three-phase supply. It controls torque, velocity and position, accepting step/direction, CW/CCW, A/B quadrature, analog torque/velocity and internal indexing commands. It has one RS-485 (RJ45) port speaking Modbus RTU or Modbus ASCII as a slave, plus digital and analog I/O for machine integration.

## Specification

| Property | Value |
|---|---|
| Category | servo drive |
| Supply voltage | 110/230 VAC |
| Rated power | 0.4 kW |
| Feedback | 24-bit (16777216 ppr) |
| Output type | SVPWM output |
| IP rating | IP20 |
| Operating temp min | 0 °C |
| Operating temp max | 55 °C |

## Connected

- Manufacturer: [AutomationDirect](https://machineschema.com/manufacturer/automationdirect.md)
- Protocols: [MODBUS ASCII](https://machineschema.com/protocol/modbus-ascii.md), [MODBUS RTU](https://machineschema.com/protocol/modbus-rtu.md)

## Safety

- Protection functions: overcurrent, overvoltage, undervoltage, over-temperature, regeneration error, overload, velocity/position error, encoder error, secondary encoder position error, communication error, short circuit.
- Enclosure rating IP20; the drive must be installed in an enclosure suitable for the environment.
- Operating temperature range 0 to 55 deg C.
- UL Listed, File # E198015; CE declaration available; RoHS compliant.

## Study notes

- Intended for use with 100 W to 400 W servo systems.
- Command signals: step and direction, CW/CCW, A/B quadrature, internal indexing (via discrete input and communication port), torque and velocity via analog input.
- Discrete I/O: 10 sinking/sourcing inputs and 6 sinking/sourcing outputs.
- Analog I/O: 2 voltage input channels (+/- 10 VDC) and 2 voltage output channels (+/- 8 VDC).
- Modbus port speed up to 115.2k baud; protocols are Modbus RTU Slave and Modbus ASCII Slave.
- EtherNet/IP and Modbus TCP are not built in; they are available as optional cards.
- Encoder feedback resolution is 24-bit (16777216 ppr) and encoder output is provided.
- Drive output is SVPWM; configuration is via software and keypad; tuning is easy/auto (4 methods)/manual.
- Input current: 4 A at 110 VAC 1-phase, 4.7 A at 230 VAC 1-phase, 2.8 A at 230 VAC 3-phase.
- Item shipping weight is 2.6 lb; unit is panel mounted in an enclosed housing.
- Supplied with a connector kit (ADC part SV2-CON-KIT).

## Sources

1. [Servo Drive: Modbus RTU and ASCII, 400W, 110/230 VAC, 1 and 3-phase (PN# SV2A-2040) | AutomationDirect](https://www.automationdirect.com/adc/shopping/catalog/motion_control/sureservo2_(sv2a_series)_servo_systems/115-z-230v_servo_motors,_drives,_motor_cables/sv2a-2040) (accessed 2026-10-26)
2. [SV2A 2040 cutsheet](https://cdn.automationdirect.com/static/specs/cutsheet/SV2A-2040_cutsheet.pdf) (accessed 2026-10-26)

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