Hi all
I've got a bit of a conundrum and hoping for a bit of help.
I have a Heinzmann PMS 120 motor, 7kW, 100amp with sin/cos sensor. And I also have a couple of controllers Sabvoton SVMC72150 150amp and a Sunwin 1500w. 80v battery too.
Both Sabvoton and Sunwin use hall sensors which means I have to run sensorless and that's fine at high rpm but as low rpm it's pretty bad - very little power and bad juddering (as you'd expect).
The way I see it I either have to add hall sensors to the motor somehow or get a sin/cos sensor-supporting controller like Sevcon gen4. I'm new to this so really not sure how to add hall to the motor. And as for Sevcon, it's all very expensive, the controller + harness + DVT + IXXAT... Could maybe afford the controller but not being able to program it would defeat the purpose.
So what do you think I should do? Maybe buy Sevcon and try to find someone to help program it so I don't have to buy all the other bits? Or maybe there's an easy hall add-on solution? Or are there other sin/cos-supporting controllers that can provide 100+amp continuous and are not as extortionate? Would be a shame to get rid of the motor as it's all installed nicely now but maybe that's the only other solution?...
Any suggestions welcome
Many thanks
V
I've got a bit of a conundrum and hoping for a bit of help.
I have a Heinzmann PMS 120 motor, 7kW, 100amp with sin/cos sensor. And I also have a couple of controllers Sabvoton SVMC72150 150amp and a Sunwin 1500w. 80v battery too.
Both Sabvoton and Sunwin use hall sensors which means I have to run sensorless and that's fine at high rpm but as low rpm it's pretty bad - very little power and bad juddering (as you'd expect).
The way I see it I either have to add hall sensors to the motor somehow or get a sin/cos sensor-supporting controller like Sevcon gen4. I'm new to this so really not sure how to add hall to the motor. And as for Sevcon, it's all very expensive, the controller + harness + DVT + IXXAT... Could maybe afford the controller but not being able to program it would defeat the purpose.
So what do you think I should do? Maybe buy Sevcon and try to find someone to help program it so I don't have to buy all the other bits? Or maybe there's an easy hall add-on solution? Or are there other sin/cos-supporting controllers that can provide 100+amp continuous and are not as extortionate? Would be a shame to get rid of the motor as it's all installed nicely now but maybe that's the only other solution?...
Any suggestions welcome
Many thanks
V