Provided by: linuxcnc-uspace_2.9.4-2ubuntu1_amd64 
NAME
hy_vfd - HAL non-realtime component for Huanyang VFDs
SYNOPSIS
hy_vfd [OPTIONS]
DESCRIPTION
This component connects the Huanyang VFD to the LinuxCNC HAL via a serial (RS-485) connection.
The Huanyang VFD must be configured via the face plate user interface to accept serial communications:
PD001 = 2
Set register PD001 (source of run commands) to 2 (communication port).
PD002 = 2
Set register PD002 (source of operating frequency) to 2 (communication port).
PD004
Set register PD004 (Base Frequency) according to motor specs. This is the rated frequency of the
motor from the motor's name plate, in Hz.
PD005
Set register PD005 (max frequency) according to motor specs. This is the maximum frequency of the
motor's power supply, in Hz.
PD011
Set register PD011 (min frequency) according to motor specs. This is the minimum frequency of the
motor's power supply, in Hz.
PD141
Set register PD141 (rated motor voltage) according to motor name plate. This is the motor's
maximum voltage, in Volts.
PD142
Set register PD142 (rated motor current) according to motor name plate. This is the motor's
maximum current, in Ampere.
PD143
Set register PD143 (Number of Motor Poles) according to motor name plate.
PD144
Set register PD144 (rated motor revolutions) according to motor name plate. This is the motor's
speed in RPM at 50 Hz. Note: This is not the motor's max speed (unless the max motor frequency
happens to be 50 Hz)!
PD163 = 1
Set register PD163 (communication address) to 1. This matches the default in the hy_vfd driver,
change this if your setup has special needs.
PD164 = 2
Set register PD164 (baud rate) to 2 (19200 bps). This matches the default in the hy_vfd driver,
change this if your setup has special needs.
PD165 = 3
Set register PD165 (communication data method) to 3 (8n1 RTU). This matches the default in the
hy_vfd driver, change this if your setup has special needs. Note that the hy_vfd driver only
supports RTU communication, not ASCII.
Consult the Huanyang instruction manual for details on using the face plate to program the VFDs
registers, and alternative values for the above registers.
Access to devices such as /dev/ttyUSB0 is restricted to members of the "dialout" group. If you see error
messages such as
open: Permission denied
ERROR Can't open the device /dev/ttyUSB0 (errno 13)
Check your groups membership with the command
groups
Then add your user to the dialout group with
sudo addgroup your-username dialout
You will need to log out and back in again for this to take effect.
OPTIONS
-d, --device <path>
(default /dev/ttyS0) Set the name of the serial device node to use.
-g, --debug
Turn on debug messages. Note that if there are serial errors, this may become annoying. Debug
mode will cause all serial communication messages to be printed in hex on the terminal.
-y, --regdump
Print the current value of all registers as soon as the VFD is enabled.
-n, --name <string>
(default hy_vfd) Set the name of the HAL module. The HAL comp name will be set to <string>, and
all pin and parameter names will begin with <string>.
-b, --bits <n>
(default 8) Set number of data bits to <n>, where n must be from 5 to 8 inclusive. This must
match the setting in register PD165 of the Huanyang VFD.
-p, --parity [even,odd,none]
(default odd) Set serial parity to even, odd, or none. This must match the setting in register
PD165 of the Huanyang VFD.
-r, --rate <n>
(default 38400) Set baud rate to <n>. It is an error if the rate is not one of the following: 110,
300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200. This must match the setting in
register PD164 of the Huanyang VFD.
-s, --stopbits [1,2]
(default 1) Set serial stop bits to 1 or 2. This must match the setting in register PD165 of the
HuanyangVFD.
-t, --target <n>
(default 1) Set HYCOMM target (slave) number. This must match the device number you set on the
Hyanyang VFD in register PD163.
-F, --max-frequency <n>
(default: read from VFD) If specified, program register PD005 of the VFD with the specified max
frequency of <n> Hz (and use the same max frequency in the hy_vfd driver). If not specified, read
the max frequency to use from register PD005 of the VFD.
-f, --min-frequency <n>
(default: read from VFD) If specified, program register PD011 of the VFD with the specified
minimum frequency of <n> Hz (and use the same minimum frequency in the hy_vfd driver). If not
specified, read the minimum frequency to use from register PD011 of the VFD.
-V, --motor-voltage <n>
(default: read from VFD) If specified, program register PD141 of the VFD with the specified max
motor voltage of <n> Volts. If not specified, read the max motor voltage from register PD141 of
the VFD.
-I, --motor-current <n>
(default: read from VFD) If specified, program register PD142 of the VFD with the specified max
motor current of <n> Amps. If not specified, read the max motor current from register PD142 of
the VFD.
-S, --motor-speed <n>
(default: compute from value read from VFD P144) This command-line argument is the motor's max
speed. If specified, compute the motor's speed at 50 Hz from this argument and from the motor's
max frequency (from the --max-frequency argument or from P011 if --max-frequency is not specified)
and program register PD144 of the VFD. If not specified, read the motor's speed at 50 Hz from
register P144 of the VFD, and use that and the max frequency to compute the motor's max speed.
-P, --motor-poles <n>
(default: read value from VFD P143) This command-line argument is the number of poles in the
motor. If specified, this value is sent to the VFD's register PD143. If not specified, the value
is read from PD143 and reported on the corresponding HAL pin.
-x, --register PDnnn=mmm <n>
Set a specific register to a new value. Can be used to set up to 10 registers. Parameters will
"stick" (but only after hy_vfd.enable has been set true) so to set more than ten parameters it is
possible to repeatedly load the driver with a set of registers to set then enable (setp
hy_vfd.enable 1) and unload (unload hy_vfd) the driver at a halrun(1) prompt. For example:
loadusr -W hy_vfd -d /ttyUSB0 --register PD014=30 --register PD015=30
Will set both ramp1 times to 3 seconds. The values should be scaled according to the manual data.
The example above uses values with a resolution of 0.1 seconds, so the numbers are 10x larger than
the required value.
PINS
<name>.enable
(bit, in) Enable communication from the hy_vfd driver to the VFD.
<name>.SetF
(float, out)
<name>.OutF
(float, out)
<name>.OutA
(float, out)
<name>.Rott
(float, out)
<name>.DCV
(float, out)
<name>.ACV
(float, out)
<name>.Cont
(float, out)
<name>.Tmp
(float, out)
<name>.spindle-forward
(bit, in)
<name>.spindle-reverse
(bin, in)
<name>.spindle-on
(bin, in)
<name>.CNTR
(float, out)
<name>.CNST
(float, out)
<name>.CNST-run
(bit, out)
<name>.CNST-jog
(bit, out)
<name>.CNST-command-rf
(bit, out)
<name>.CNST-running
(bit, out)
<name>.CNST-jogging
(bit, out)
<name>.CNST-running-rf
(bit, out)
<name>.CNST-bracking
(bit, out)
<name>.CNST-track-start
(bit, out)
<name>.speed-command
(float, in)
<name>.spindle-speed-fb
(float, out) Current spindle speed as reported by Huanyang VFD.
<name>.spindle-at-speed-tolerance
(float, in) Spindle speed error tolerance. If the actual spindle speed is within
.spindle-at-speed-tolerance of the commanded speed, then the .spindle-at-speed pin will go True.
The default .spindle-at-speed-tolerance is 0.02, which means the actual speed must be within 2% of
the commanded spindle speed.
<name>.spindle-at-speed
(bit, out) True when the current spindle speed is within .spindle-at-speed-tolerance of the
commanded speed.
<name>.frequency-command
(float, out)
<name>.max-freq
(float, out)
<name>.base-freq
(float, out)
<name>.freq-lower-limit
(float, out)
<name>.rated-motor-voltage
(float, out)
<name>.rated-motor-current
(float, out)
<name>.rated-motor-rev
(float, out)
<name>.motor-poles
(u32, out)
<name>.hycomm-ok
(bit, out)
PARAMETERS
<name>.error-count
(s32, RW)
<name>.retval
(float, RW)
AUTHOR
Sebastian Kuzminsky
LICENSE
GPL
Huanyang VFD April 25, 2015 hy_vfd(1)