slow-poke
Ultra Member
Growing up in Winnipeg 60-70s the local radio station CJOB had a call in program called Beefs and Bouquets. People would call in a briefly either describe an excellent service call experience or warn people about a terrible one.
Too many "Beefs" nowadays so this thread is dedicated to a product or service that you find exceptionally great.
Bouquet to Yaskawa
There was a time when things were engineered to make sure they met the advertised specifications, so if you purchased say a 1HP motor it would deliver 1HP, even if say the line voltage was at the minimum limit etc.. vs. a motor that can deliver 1HP for 1 second before stalling and burning itself up if all the stars are aligned.
I recently was gifted some old retired Yaskawa servo motors and drives from Bouquet==> Combustable Herbage. These servos are exceptionally well engineered, the manual >400 pages describes every detail and nuance in perfect English.
One example of attention to detail, most CNC systems utilize limit switches to prevent running the table further than it should go. It's not uncommon for me to hit one of these limits. So everything stops and then you need to acknowledge the alarm, press a limit override button, power everything up again and jog away from the mistake you just made. Not a huge deal but a PITA.
The Yaskawa drives have dedicated inputs for limit switches (great if your control card is running out of inputs), and a software setting that will stop the servo from venturing past that limit switch point but allow you to move back in the correct direction without all the hoopla described above. It's a small detail but I for one really appreciate it.
Servo tuning ac servos can be tricky, there's a myriad of settings related to inertia, acceleration, torque control, etc etc. I spent hours tuning my cheapie servos and have no idea if they are actually optimized. The Yaskawa tuning software was a dream to use, just a few clicks it was something like this:
1) Disconnect the motor shaft, and press this button.
The software spins the motor forward and backwards about 10 times at various rates for perhaps 20 seconds and then reports done, proceed to step 2
2) Connect the motor shaft to the machine and ensure the machine can move +/- x inches safely, do not press start until you are sure the machine can move safely, when you are sure press this button
The table moves first slowly and then progressively faster in both directions until its moving VERY fast and stopping VERY fast, this goes on for perhaps a minute and then a message pops up your servo system is tuned.
Simply fantastic and yes after seeing my table move around like a ball in a pinball machine I have full confidence it's tuned correctly.
Thank you Yaskawa.
Too many "Beefs" nowadays so this thread is dedicated to a product or service that you find exceptionally great.
Bouquet to Yaskawa
There was a time when things were engineered to make sure they met the advertised specifications, so if you purchased say a 1HP motor it would deliver 1HP, even if say the line voltage was at the minimum limit etc.. vs. a motor that can deliver 1HP for 1 second before stalling and burning itself up if all the stars are aligned.
I recently was gifted some old retired Yaskawa servo motors and drives from Bouquet==> Combustable Herbage. These servos are exceptionally well engineered, the manual >400 pages describes every detail and nuance in perfect English.
One example of attention to detail, most CNC systems utilize limit switches to prevent running the table further than it should go. It's not uncommon for me to hit one of these limits. So everything stops and then you need to acknowledge the alarm, press a limit override button, power everything up again and jog away from the mistake you just made. Not a huge deal but a PITA.
The Yaskawa drives have dedicated inputs for limit switches (great if your control card is running out of inputs), and a software setting that will stop the servo from venturing past that limit switch point but allow you to move back in the correct direction without all the hoopla described above. It's a small detail but I for one really appreciate it.
Servo tuning ac servos can be tricky, there's a myriad of settings related to inertia, acceleration, torque control, etc etc. I spent hours tuning my cheapie servos and have no idea if they are actually optimized. The Yaskawa tuning software was a dream to use, just a few clicks it was something like this:
1) Disconnect the motor shaft, and press this button.
The software spins the motor forward and backwards about 10 times at various rates for perhaps 20 seconds and then reports done, proceed to step 2
2) Connect the motor shaft to the machine and ensure the machine can move +/- x inches safely, do not press start until you are sure the machine can move safely, when you are sure press this button
The table moves first slowly and then progressively faster in both directions until its moving VERY fast and stopping VERY fast, this goes on for perhaps a minute and then a message pops up your servo system is tuned.
Simply fantastic and yes after seeing my table move around like a ball in a pinball machine I have full confidence it's tuned correctly.
Thank you Yaskawa.
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