Topic-icon SBL2360 won't turn motor in open loop

1 year 1 day ago #29534476 by tgw
Hi. A few months ago I bought an SBL2360 and I've finally gotten around to trying to use it to control two BLDC motors. It's my first time working with BLDC motors and Roboteq products, so please be patient with me.

The motors were BLWRPG235S-24V-4000-R326 BLDC motors with planetary gearboxes from Anaheim Automations:

My current setup involves powering the SBL2360 with a regulated DC power supply connected to "PwrCtrl".

To power the motors themselves I'm using a 24V NiMH battery from MegaBatteries connected to Vmot:

The three phases of the motor are connected to U1, V1, and W1. I set the operating mode to Open Loop and have not yet connected the Hall Sensors. My hope was to get the motor working in Open Loop and then implement Hall Sensor feedback after that. I'm able to power the controller and connect it to the Roborun PC utility, but moving the slide bar for motor control won't turn the motor, and after moving the slide bar 100 units in either direction results in a Stall error.

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  • Gabriel_Isko
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11 months 4 weeks ago #29534485 by Gabriel_Isko
Replied by Gabriel_Isko on topic SBL2360 won't turn motor in open loop
You are going to have to connect the hall sensors, even to run in open loop. The motor controller needs the hall sensor feedback to perform motor commutation in a brush less motor. You can try running the motors in sensorless commutation mode, however I would recommend immediately connecting the hall sensors to run the motors right away.

You will also have to make sure that the hall sensors are wired in the correct order. If the motor doesn't spin, try another hall sensor map. There are 6 total (0-5).

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11 months 2 weeks ago #29534510 by tgw
Connecting the Hall Sensors worked perfectly. Thanks.

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