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gs2_vfd - HAL userspace component for Automation Direct GS2 VFD’s |
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gs2_vfd [OPTIONS] |
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This manual page explains the gs2_vfd component. This component reads and writes to the GS2 via a modbus connection. gs2_vfd is for use with EMC2 |
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-b -bits <n> |
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(default 8) Set number of data bits to <n>, where n must be from 5 to 8 inclusive |
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-d -device <path> |
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(default /dev/ttyS0) Set the name of the serial device node to use. |
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-g -debug |
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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. |
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-n -name <string> |
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(default gs2_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>. |
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-p -parity [even,odd,none] |
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(default gs2_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>. |
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-r -rate <n> |
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(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 |
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-s -stopbits [1,2] |
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(default 1) Set serial stop bits to 1 or 2 |
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-t -target <n> |
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(default 1) Set MODBUS target (slave) number. This must match the device number you set on the GS2. |
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-v -verbose |
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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. |
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<name>.DC-bus-volts (float, out) |
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from the VFD |
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<name>.at-speed (bit, out) |
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when drive is at commanded speed |
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<name>.err-reset (bit, in) |
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reset errors sent to VFD |
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<name>.firmware-revision (s32, out) |
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from the VFD |
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<name>.frequency-command (float, out) |
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from the VFD |
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<name>.frequency-out (float, out) |
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from the VFD |
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<name>.is-stopped (bit, out) |
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when the VFD reports 0 Hz output |
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<name>.load-percentage (float, out) |
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from the VFD |
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<name>.motor-RPM (float, out) |
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from the VFD |
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<name>.output-current (float, out) |
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from the VFD |
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<name>.output-voltage (float, out) |
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from the VFD |
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<name>.power-factor (float, out) |
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from the VFD |
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<name>.scale-frequency (float, out) |
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from the VFD |
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<name>.speed-command (float, in) |
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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 |
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<name>.spindle-fwd (bit, in) |
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1 for FWD and 0 for REV sent to VFD |
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<name>.spindle-on (bit, in) |
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1 for ON and 0 for OFF sent to VFD, only on when running |
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<name>.spindle-rev (bit, in) |
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1 for ON and 0 for OFF, only on when running |
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<name>.status-1 (s32, out) |
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Drive Status of the VFD (see the GS2 manual) |
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<name>.status-2 (s32, out) |
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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). |
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<name>.error-count (s32, RW) |
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<name>.loop-time (float, RW) |
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how often the modbus is polled (default 0.1) |
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<name>.nameplate-HZ (float, RW) |
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Nameplate Hz of motor (default 60) |
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<name>.nameplate-RPM (float, RW) |
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Nameplate RPM of motor (default 1730) |
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<name>.retval (s32, RW) |
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the return value of an error in HAL |
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<name>.tolerance (float, RW) |
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speed tolerance (default 0.01) |
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<name>.ack-delay (s32, RW) |
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number of read/write cycles before checking at-speed (default 2) |
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See the EMC2 Integrators Manual for more information. |
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John Thornton |
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GPL |