---
name: "wj200_vfd"
section: "1"
platform: "linux"
package: "linuxcnc-uspace"
version: "1:2.9.4-2+deb13u1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/wj200_vfd"
---

# wj200\_vfd(1)

Hitachi wj200 modbus driver

## NAME

wj200\_vfd - Hitachi wj200 modbus driver

## SYNOPSIS

**wj200\_vfd**

## PINS

- **wj200-vfd.*N*.commanded-frequency float in**

  Frequency of vfd

- **wj200-vfd.*N*.reverse bit in**

  1 when reverse 0 when forward

- **wj200-vfd.*N*.run bit in**

  run the vfd

- **wj200-vfd.*N*.enable bit in**

  1 to enable the vfd. 0 will remote trip the vfd, thereby disabling it.

- **wj200-vfd.*N*.is-running bit out**

  1 when running

- **wj200-vfd.*N*.is-at-speed bit out**

  1 when running at assigned frequency

- **wj200-vfd.*N*.is-ready bit out**

  1 when vfd is ready to run

- **wj200-vfd.*N*.is-alarm bit out**

  1 when vfd alarm is set

- **wj200-vfd.*N*.motor-current float out**

  Output current in amps

- **wj200-vfd.*N*.heatsink-temp float out**

  Temperature of drive heatsink

- **wj200-vfd.*N*.watchdog-out bit out**

  Alternates between 1 and 0 after every update cycle. Feed into a watchdog component to ensure vfd driver is communicating with the vfd properly.

## PARAMETERS

- **wj200-vfd.*N*.mbslaveaddr u32 rw**

  Modbus slave address

## LICENSE

GPLv2 or greater