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Hitachi WJ200 Setup
- lrak
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5 years 11 months ago #189053
by lrak
Replied by lrak on topic Hitachi WJ200 Setup
@Todd
The physical estop already exists - wouldn't do it any other way - thus the problem. If the drive isn't powered it spams the command line with error lines - one is enough.
Good news, is I fixed the component code this morning - if not enabled, it only sends the "failed to get status" error once.
The problem with just the estop loop - things in motion tend to stay in motion. So instead, when estop is pressed - and thus yanks wj200-vfd.0.enable - the driver sends a trip-alarm (02) and it will quickly decelerate to a stop - the deceleration actually helps power the non powered inverter - and stop the spindle. I have this working now.
I have the wj200-vfd.0.enable connected to halui.machine.is-on - so the machine-on/off button should stop all motion even at the software level.
,.,. now - Looking at adding a scaling input to the component - currently it sets the Hz going to the drive - a fp scale input could be used to scale to RPM. There are frequency limits one can program into the wj200..
The physical estop already exists - wouldn't do it any other way - thus the problem. If the drive isn't powered it spams the command line with error lines - one is enough.
Good news, is I fixed the component code this morning - if not enabled, it only sends the "failed to get status" error once.
The problem with just the estop loop - things in motion tend to stay in motion. So instead, when estop is pressed - and thus yanks wj200-vfd.0.enable - the driver sends a trip-alarm (02) and it will quickly decelerate to a stop - the deceleration actually helps power the non powered inverter - and stop the spindle. I have this working now.
I have the wj200-vfd.0.enable connected to halui.machine.is-on - so the machine-on/off button should stop all motion even at the software level.
,.,. now - Looking at adding a scaling input to the component - currently it sets the Hz going to the drive - a fp scale input could be used to scale to RPM. There are frequency limits one can program into the wj200..
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- lrak
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5 years 6 months ago #205501
by lrak
Replied by lrak on topic Hitachi WJ200 Setup
Anyone using this with an existing motor - adding a PTC sensor is not hard. (protect the motor from overheating).
a KTY81/222 is a reasonable choice. One note - the C085 offset works backwards.. 90% would trip higher than 100%.
a KTY81/222 is a reasonable choice. One note - the C085 offset works backwards.. 90% would trip higher than 100%.
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- dokwine
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3 years 4 months ago - 3 years 4 months ago #273211
by dokwine
Replied by dokwine on topic Hitachi WJ200 Setup
@Irak
Do you know the status of the changes you have made? I tend to test UI and HAL changes with the VFD and motors off and the "failed to get status" errors are a hassle.
I'm also having trouble with the driver. I think I'll try new post on that if I can find an appropriate place for it.
Thanks,
Ron
Do you know the status of the changes you have made? I tend to test UI and HAL changes with the VFD and motors off and the "failed to get status" errors are a hassle.
I'm also having trouble with the driver. I think I'll try new post on that if I can find an appropriate place for it.
Thanks,
Ron
Last edit: 3 years 4 months ago by dokwine.
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