# AutomationDirect GS23-27P5

Hardware · `GS23-27P5` · verification: source checked

The GS23-27P5 is a DURApulse GS20 series general purpose AC variable frequency drive in an enclosed D-frame housing. It operates from a 230 VAC supply, delivering 7-1/2 hp with three-phase input or 3-1/2 hp with single-phase input, and drives three-phase induction or permanent magnet AC motors using SVC, V/Hz, FOC or torque control. Setup and monitoring are done through analog and discrete I/O, an RS-485 port running Modbus RTU/ASCII, and a USB B port.

## Specification

| Property | Value |
|---|---|
| Category | vfd |
| Supply voltage | 230 VAC |
| Frame size | D |
| Output type | PWM output |
| IP rating | IP20 |
| Operating temp min | -20 °C |
| Operating temp max | 50 °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

- Safe Torque Off (STO) is built-in.
- A user-supplied external fuse is required.
- Agency approvals: UL Listed File # E198015, CE declaration and RoHS status Yes; no UL Recognized, UL Hazardous or CSA file numbers listed.

## Study notes

- Control modes: SVC, V/Hz, FOC or torque.
- Horsepower depends on input phase: 7-1/2 hp with 3-phase input, 3-1/2 hp with 1-phase input.
- Amperage rating 25 A with 3-phase input and 12.5 A with 1-phase input; 27 A variable torque rating.
- Output frequency range 0.1–599 Hz; carrier frequency range 2–15 kHz.
- Discrete I/O: 7 inputs at 24 VDC (sinking/sourcing) and 3 outputs at 240 VAC / 48 VDC (relay/sinking/sourcing, one Form C SPDT relay); load current 3 A/point relay, 50 mA/point discrete.
- Analog I/O: 2 input channels (0–20 mA / 4–20 mA, ±10 VDC, 10-bit and 12-bit) and 1 output channel (0–20 mA / 4–20 mA, 0–10 VDC, 10-bit).
- Communication ports: one RS-485 (RJ45) and one USB B, up to 115.2k baud.
- Optional EtherNet/IP and Modbus TCP card available.
- Integrated dynamic braking; no integrated EMI filter; not internally bypassed.
- Spring clamp terminals; panel or wall mounting.
- Ladder programming supported with GSLOGIC drive PLC software and GSOFT2 configuration software.
- Shipping weight stated as 5.6 lb; intended for 3-phase induction and permanent magnet AC motors.

## Sources

1. [DURApulse AC General Purpose Drive: 230 VAC, 7-1/2hp with 3-phase input, 3-1/2hp with 1-phase input, (VFD) (PN# GS23-27P5) | AutomationDirect](https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_soft_starters/ac_variable_frequency_drives_(vfd)/general_purpose_vfds/gs23-27p5) (accessed 2026-10-26)
2. [GS23 27P5 cutsheet](https://cdn.automationdirect.com/static/specs/cutsheet/GS23-27P5_cutsheet.pdf) (accessed 2026-10-26)

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