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Thread: New VFD announced by Powtran
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2nd May 2019, 08:29 PM #31SENIOR MEMBER
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2nd May 2019, 11:01 PM #32GOLD MEMBER
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As I said above....Chinese time so who knows.
CHRIS
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7th May 2019, 12:43 AM #33SENIOR MEMBER
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I also asked twice for a manual for the drive, but they only send me a brochure...
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7th May 2019, 09:46 AM #34.
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7th May 2019, 11:16 AM #35
Just download it from the website.
POWTRAN Technology
Edit: PI500 is there. PI150 is not yet available.Those were the droids I was looking for.
https://autoblastgates.com.au
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7th May 2019, 01:10 PM #36SENIOR MEMBER
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They don't have a manual for this drive on their website...
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7th May 2019, 02:26 PM #37GOLD MEMBER
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7th May 2019, 02:44 PM #38GOLD MEMBER
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OK, more to this, I just emailed Powtran and less than five minutes later had an answer....
Hi Chris,
It's good to hear from you, attachment is the PI150 catalogue for your kind perusal, for the user manual i'll send it to you later.
Currently only 400V series for sale, 220V series shall come late this month.
Best regards,
Chris
ac drive Powtran 13:37 (4 minutes ago)
to me
Hi Chris,
It's good to hear from you, attachment is the PI150 catalogue for your kind perusal, for the user manual i'll send it to you later.
Currently only 400V series for sale, 220V series shall come late this month.
Best regards,
Chris
CHRIS
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7th May 2019, 03:31 PM #39SENIOR MEMBER
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If you manage to get the manual from them then i would please like a copy....i usually check out the manual of a product before i would consider buying it
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7th May 2019, 03:40 PM #40SENIOR MEMBER
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7th May 2019, 03:45 PM #41.
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There's no chinese version of the 150 manual on the website yet either.
Maybe its still being written?
Thanks for the link.
There are several versions of the 500 series (High performance, A and C) VFDs
I think that manual is for the PI500 High performance VFD since the HP series only currently offer one model of a SP to 3P VFD , a 5.5kW version as shown in that manual, the rest are all 3P-3P models
There are also some physical differences between the models, eg the 500 HP has 8 DIs, but the 500A has only 6.
I don't anticipate any or many instructional set differences for the smaller power drives kW but one never knows.
I can only find full Chinese manuals available on line for the 500C and 500A
The 500C (compressor) manual only refer to 7.5kW 3p-3P units
http://www.powtran.com/upload/201811...1527295560.pdf
The manual for the 500A series (so called basic VFD) covers more SP models starting from the SP 400W units.
http://www.powtran.com/upload/201810...1934549660.pdf
This is the one I would like to see the manual for ie just how basic is it
Once we have all the manuals it would be useful if someone was to set up a comparison table comparing a relevant range of features for all their smaller VFDs.
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7th May 2019, 03:47 PM #42.
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7th May 2019, 03:53 PM #43SENIOR MEMBER
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The Sako 2.2 Kw ...220V - 380V is around $200
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8th May 2019, 01:03 PM #44Novice
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I had not heard of the Powertran brand. I believe they are quite a good unit I wanted to convert my wood lathe. The speed change was with 5 stepped pulleys and a 1.5hp single phase motor. You cannot control a single phase motor that has a starting cap and centrifugal switch for the start winding. It will cook the VFD on start up. I did while experimenting with a small unit on a small motor. In the end I used a Huanyang HY02D223B 2.2 kw VFD with an optional control panel. I fitted a 3 phase motor to the lathe and set it up with a two step pulley to provide extra torque at low speed. It took a while for me to get my head around everything and set it up. Such a job is not for the faint hearted. I purchased my drive and motor on eBay. WARNING. There a number of units available that are not genuine Huanyang units They are look alike and are not the genuine brand and do not do what they are supposed to. They also lack a lot of adjustments the genuine units have.
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8th May 2019, 02:18 PM #45.
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Yes good advice about the fake HYs.
What size motor did you end up using?
BTW neither the standard HY units or their clones are Vector controlled so as you say their power below 50Hz are indeed proportional to frequency, so 25Hz = half power and 12.5Hz = 14 power.
The Powtran units have Vector control capability so the power drops off far less at lower RPMs.
The still have close to full power down to ~40Hz and about 2/3rds power at 25Hz and 1/2 power at around 15Hz and the still have some power even as low as 5Hz
This means there's less of or no need to change belts.
Running continually at significant loads at low RPMs means the motor can easily overheat so an additional motor fan may be needed - even something like a 12V computer PS supply would be sufficient to provide the needed cooling.
Then if a motor of twice the original power is used you can have the original power from about 12 Hz upwards.
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