mitsub_vfd(1)

ИМЯ

mitsub_vfd — компонент HAL, работающий не в реальном времени, для преобразователей частоты Mitsubishi A500 F500 E500 A500 D700 E700 серии F700 (другие могут работать). Он использует протокол COMPUTER LINK not MODBUS. Подключение осуществляется через разъем PU.

СИНОПСИС

loadrt mitsub_vfd [--baud baudrate] [--port devicename] name1=number₁[,name2=number₂…]

name1: is user selectable (usually a description of the controlled device).
number1: is the slave number that was set on the VFD. Must be two digits (Parameter 117).
nameN=numberN: можно повторить для нескольких VFD, соединенных вместе.
--baud baudrate: is optional as it defaults to 9600, all networked vfds must be set to the same baudrate.
--port devicename: is optional as it defaults to ttyS0, a common alternative is /dev/ttyUSB0.

ОПИСАНИЕ

The mitsub_vfd component interfaces a Mitsubishi VFD to LinuxCNC. The VFD is connected via RS-485 serial to the computer’s USB or serial port using a RS-232/RS-485 converter.

HARDWARE SETUP

reference manual communication option reference manual and A500 technical manual for 500 series. Fr-A700 F700 E700 D700 technical manual for the 700 series.
The inverter must be set manually for communication (you may have to set PR 77 to 1 to unlock PR modification).
You must power cycle the inverter for some of these, e.g. 79.

VFD INTERNAL PARAMETERS:

PARAMETER 79: 1 or 0
PARAMETER 117: Station number - 1
(can be optionally set 0 - 31) if component is also set
PARAMETER 118: Communication speed 96
(can be optionally set 48, 96, 192 if component is also set)
PARAMETER 119: Stop bit/data length - 1
(8 bits, two stop - don’t change)
PARAMETER 120: Parity - 0
(no parity - don’t change)
PARAMETER 121: COM tries - 10
(if maximum 10 COM errors then inverter faults- can change.)
PARAMETER 122: COM check time interval 9999
(never check - if communication is lost inverter will not know (can change))
PARAMETER 123: Wait time - 9999
No wait time is added to the serial data frame (don’t change).
PARAMETER 124: CR selection - 0
Don’t change.
PARAMETER 549: Communication protocol - 0
Computer link protocol - don’t change - (not all VFDs have this)

NOTES

This driver assumes certain other VFD settings:

That the motor frequency status is set to show Hertz.
That the status bit 3 is up to speed.
That the status bit 7 is alarm.

Some models, e.g. the E500, cannot monitor status.
You must set set the monitor pin to false.
In this case pins such as up-to-speed, amps, alarm and status bits are not useful.

PINS

VFD_NAME.fwd (bit, in): Forward/reverse pin
VFD_NAME.run (bit, in): Run/stop pin
VFD_NAME.debug (bit, in): Set debug mode pin. Это выведет на терминал множество сообщений.
VFD_NAME.monitor (bit, in): Set monitor mode pin. If false, request-status command will not be sent to VFD. Status, amps, power, motor-feedback, and alarm would then not be useful.
VFD_NAME.estop (bit, in): Set E-stop mode pin. This will stop the VFD. Restarting requires the run pin to cycle.
VFD_NAME.fwd (bit, out): Up-to-speed status pin. Motor is at requested speed within VFD’s settings tolerance.
VFD_NAME.alarm (bit, out): Alarm status pin
VFD_NAME.motor-cmd (float, in): The requested motor speed, in Hertz (Hz)
VFD_NAME.motor-fb (float, out): The motor feedback speed (from VFD) in Hertz (Hz)
VFD_NAME.motor-amps (float, out): The motor current, in amperes (A)
VFD_NAME.motor-power (float, out): Мощность двигателя
VFD_NAME.scale-cmd (float, in): Motor command’s scale setting defaults to 1
VFD_NAME.scale-cmd (float, in): Motor command’s scale setting defaults to 1
VFD_NAME.scale-cmd (float, in): Motor command’s scale setting defaults to 1
VFD_NAME.stat-bit-0 (bit, out): Необработанный бит статуса
VFD_NAME.stat-bit-1 (bit, out): Необработанный бит статуса
VFD_NAME.stat-bit-2 (bit, out): Необработанный бит статуса
VFD_NAME.stat-bit-3 (bit, out): Raw status bit. Configure the VFD so that the function Up to frequency or motor-at-speed is assigned to status bit 3 (parameter 191 for 700 series).
VFD_NAME.stat-bit-4 (bit, out): Необработанный бит статуса
VFD_NAME.stat-bit-5 (bit, out): Необработанный бит статуса
VFD_NAME.stat-bit-6 (bit, out): Необработанный бит статуса
VFD_NAME.stat-bit-7 (bit, out): Raw status bit. Configure the VFD so that the function alarm is assigned to status bit 7 (parameter 195 for 700 series).

SAMPLE HAL

loadusr -Wn coolant mitsub_vfd --port /dev/ttyUSB0 spindle=02 coolant=01
# **************** Spindle VFD setup slave 2 ****************
net spindle-vel-cmd spindle.motor-cmd
net spindle-cw spindle.fwd
net spindle-on spindle.run
net spindle-at-speed spindle.up-to-speed
net estop-out spindle.estop
# cmd scaled to RPM (belt/gearbox driven)
setp spindle.scale-cmd .135
# feedback is in rpm (recipicale of command)
setp spindle.scale-fb 7.411
# turn on monitoring so feedback works
setp spindle.monitor 1
net spindle-speed-indicator spindle.motor-fb
# *************** Coolant VFD setup slave 1 *****************
net coolant-flood coolant.run
net coolant-is-on coolant.up-to-speed
# cmd and feedback scaled to hertz
setp coolant.scale-cmd 1
setp coolant.scale-fb 1
# command full speed
setp coolant.motor-cmd 60
# allows us to see status
setp coolant.monitor 1
net estop-out coolant.estop

ISSUES

Some models, e.g. E500, cannot monitor status, so set the monitor pin to false. In this case, pins such as up-to-speed, amps, alarm and status bits are not useful.

mitsub_vfd(1) Manual Page