Query of HMC300 Controller

[Glen]

Ok new to this so help required, I have a 500HMB motor and HPC300 controller all working fine on 48volts.

I have been upgrading batteries to LIPO giving 54.4v cause of my issue  on voltage stop.

My controller will switch on and is live with higher voltage but I have no drive on motor see setting on attached .docx.  USB program and  updated controller, note controller from 2011!!

Help required, have nice new batteries and am not able to utalise..
Many Thanks

[Bikemad]

Hi Glen andto the forum.

If the 54.4V is being supplied by thirteen fully charged LiPo cells (48.1V Nominal) it should be very similar to the voltage obtained from 48V lead acid batteries.

Have you tried swapping the batteries back again to check that the motor still runs on the original 48V supply?

It might be worth sending a brief email to David at GM in China (wyh@goldenmotor.com) to see if there is a known problem with higher battery voltages on the HPC300 controller.

Alan
 

[Glen]

Hi Alan,

Thanks for the suggestion I do this each time, like to check I have not broke anything..

I have placed the old Lead Acid batteries back each time and the motor runs no issues.

Also if I add another 12V Lead Acid battery it does not run also.

Glen

[Glen]

See Youtube for a clip  "Mr G First run E-Motorbike 5Kw BDLC"

Excuse the title could not think of anything better!! 

[Glen]

Update,

Using CA-201-Controller Wire connection have updated controller.
Changed controller settings:
Initial settings
       voltage high shutdown:85
    50% speed limit voltage: 38
    15% speed limit voltage: 34
       voltage low shutdown: 32

48v settings this works. reading from controller

Updated Settings
       voltage high shutdown: 70 
    50% speed limit voltage: 56
    10% speed limit voltage: 54
       voltage low shutdown: 52

Did not work,?

Query for any one, does the % voltage have to be a calculation
voltage high shutdown: initial start point
50% speed limit voltage: is this 50% off voltage shut down
15% speed limit voltage: is this 15% off voltage shut down
voltage low shutdown: is this just cut off volatge
 

[Bikemad]

Hi Glen

I haven't ever used any of the larger controllers so I'm not sure what the settings should be, but here is my own interpretation of those settings:

• Voltage high shutdown:
  I would set this to the maximum charging voltage for the battery being used (i.e.58V for a 48V lead acid battery).
   
• 50% speed limit voltage:
  When the battery voltage falls below this voltage setting the motor speed will be restricted to 50% to conserve power and extend the range.
   
• 15% speed limit voltage:
  When the battery voltage falls below this voltage setting the motor speed will be further restricted to 15% to conserve the limited amount of power remaining (hopefully you will have enough capacity left to still limp home).
   
• Voltage low shutdown:
  When the battery voltage falls below this voltage setting the motor will cut out.
  I would set this to the desired minimum discharge voltage to prevent the battery from becoming too discharged (i.e. 42V for a 48V lead acid battery).
   

Ideally you should set the speed limiting voltages based on the discharge curve of the battery type being used.
Lead acid tend to have a pronounced voltage drop as the pack discharges, whereas Lithium packs have a more gradual reduction throughout the majority of the discharge with a large drop nearer the end:



I notice that you have the Acceleration set to 200rpm/s. This seems way too low as it would take almost 24 seconds for the motor to reach its maximum rpm. This could account for the disappointingly slow acceleration observed in the video.

Do you have an ammeter to measure the current being drawn by the motor during use?

Alan
 

[Glen]

New controller has sorted the vault age issue.
Thanks I'll look at rpm however the motor plate is mdf in the video

Have also received new wire loom. This has many more wires. Have got all working except throttle. I can run of the reverse switch! ! !!  It would be good to have latest wire diagram like on the page against the controller have as David if they have one.