.\" Copyright (c) 2009 John Thornton .\" (jet1024 AT semo DOT net) .\" .\" This is free documentation; you can redistribute it and/or .\" modify it under the terms of the GNU General Public License as .\" published by the Free Software Foundation; either version 2 of .\" the License, or (at your option) any later version. .\" .\" The GNU General Public License's references to "object code" .\" and "executables" are to be interpreted as the output of any .\" document formatting or typesetting system, including .\" intermediate and printed output. .\" .\" This manual is distributed in the hope that it will be useful, .\" but WITHOUT ANY WARRANTY; without even the implied warranty of .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the .\" GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public .\" License along with this manual; if not, write to the Free .\" Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, .\" USA. .\" .\" .\" .TH gs2_vfd "1" "January 1, 2009" "GS2 VFD" "LinuxCNC Documentation" .SH NAME \fBgs2_vfd\fR - HAL userspace component for Automation Direct GS2 VFD's .SH SYNOPSIS .B gs2_vfd .RI [OPTIONS] .br .SH DESCRIPTION This manual page explains the .B gs2_vfd component. This component reads and writes to the GS2 via a modbus connection. .PP \fBgs2_vfd\fP is for use with LinuxCNC .SH OPTIONS .B .IP -b,\ --bits\ (default 8) Set number of data bits to , where n must be from 5 to 8 inclusive .B .IP -d,\ --device\ (default /dev/ttyS0) Set the name of the serial device node to use. .B .IP -g,\ --debug Turn on debugging messages. This will also set the verbose flag. Debug mode will cause all modbus messages to be printed in hex on the terminal. .B .IP -n,\ --name\ (default gs2_vfd) Set the name of the HAL module. The HAL comp name will be set to , and all pin and parameter names will begin with . .B .IP -p,\ --parity\ [even,odd,none] (default odd) Set serial parity to even, odd, or none. .B .IP -r,\ --rate\ (default 38400) Set baud rate to . It is an error if the rate is not one of the following: 110, 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 .B .IP -s,\ --stopbits\ [1,2] (default 1) Set serial stop bits to 1 or 2 .B .IP -t,\ --target\ (default 1) Set MODBUS target (slave) number. This must match the device number you set on the GS2. .B .IP -v,\ --verbose Turn on debug messages. Note that if there are serial errors, this may become annoying. At the moment it doesn't make much difference most of the time. .SH PINS .B .IP .DC-bus-volts\ (float,\ out) from the VFD .B .IP .at-speed\ (bit,\ out) when drive is at commanded speed .B .IP .err-reset\ (bit,\ in) reset errors sent to VFD .B .IP .firmware-revision\ (s32,\ out) from the VFD .B .IP .frequency-command\ (float,\ out) from the VFD .B .IP .frequency-out\ (float,\ out) from the VFD .B .IP .is-stopped\ (bit,\ out) when the VFD reports 0 Hz output .B .IP .load-percentage\ (float,\ out) from the VFD .B .IP .motor-RPM\ (float,\ out) from the VFD .B .IP .output-current\ (float,\ out) from the VFD .B .IP .output-voltage\ (float,\ out) from the VFD .B .IP .power-factor\ (float,\ out) from the VFD .B .IP .scale-frequency\ (float,\ out) from the VFD .B .IP .speed-command\ (float,\ in) speed sent to VFD in RPM It is an error to send a speed faster than the Motor Max RPM as set in the VFD .B .IP .spindle-fwd\ (bit,\ in) 1 for FWD and 0 for REV sent to VFD .B .IP .spindle-on\ (bit,\ in) 1 for ON and 0 for OFF sent to VFD, only on when running .B .IP .spindle-rev\ (bit,\ in) 1 for ON and 0 for OFF, only on when running .B .IP .status-1\ (s32,\ out) Drive Status of the VFD (see the GS2 manual) .B .IP .status-2\ (s32,\ out) Drive Status of the VFD (see the GS2 manual) Note that the value is a sum of all the bits that are on. So a 163 which means the drive is in the run mode is the sum of 3 (run) + 32 (freq set by serial) + 128 (operation set by serial). .SH PARAMETERS .B .IP .error-count\ (s32,\ RW) .B .IP .loop-time\ (float,\ RW) how often the modbus is polled (default 0.1) .B .IP .nameplate-HZ\ (float,\ RW) Nameplate Hz of motor (default 60) .B .IP .nameplate-RPM\ (float,\ RW) Nameplate RPM of motor (default 1730) .B .IP .retval\ (s32,\ RW) the return value of an error in HAL .B .IP .tolerance\ (float,\ RW) speed tolerance (default 0.01) .B .IP .ack-delay\ (s32,\ RW) number of read/write cycles before checking at-speed (default 2) .SH SEE ALSO \fIGS2 Driver\fR in the LinuxCNC documentation for a full description of the \fBGS2\fR syntax \fIGS2 Examples\fR in the LinuxCNC documentation for examples using the \fBGS2\fR component .SH BUGS .SH AUTHOR John Thornton .SH LICENSE GPL