Hobbywing SCT Pro & Tekin Pro 4 strange starts
02-03-2015, 08:11 AM
#1
Hobbywing SCT Pro & Tekin Pro 4 strange starts
Got the ESC new and the motor from a form member and have it installed in my Traxxas Slash 4x4. Every time I turn on the ESC it acts like it hunts for the sensor for a few seconds. The motor cogs for a couple feet and the ESC flashes a red light. After a few seconds of this the ESC will start flashing green and red and it will work perfectly until you turn the ESC off again. It almost acts like it has to find the position of the motor with the sensor or something every time on startup. It's not really a big deal but it's a bit annoying especially when you are trying to get your truck to the start line for a race and you have to wait for it to figure itself out for a few seconds before you can drive it. Is this normal behavior or is there something wrong with the ESC or the motor? I was thinking about trying a different sensor cable but I would have to order one as my local hobby shop is out of stock.
02-03-2015, 07:53 PM
#3
Hopefully it's just the sensor cable. Flashing red and green means the ESC is/was in sensored mode, detected an abnormal sensor signal and went into sensorless mode.
In the mean time, if you have to run, just remove the sensor cable. Sounds like your setup runs OK in sensorless mode. Granted it's not ideal, but would save you all the hassles when racing. The ESC will just startup in sensorless mode.
Worst case is there's something wrong with the sensor board in the motor or the sensor circuitry in the ESC. Hopefully the person who sold it didn't sell it without disclosing this problem. I fried the sensor circuitry on a Hobbywing ESC by having a damaged sensor cable that I think shorted out the circuitry. Works fine sensorless.
In the mean time, if you have to run, just remove the sensor cable. Sounds like your setup runs OK in sensorless mode. Granted it's not ideal, but would save you all the hassles when racing. The ESC will just startup in sensorless mode.
Worst case is there's something wrong with the sensor board in the motor or the sensor circuitry in the ESC. Hopefully the person who sold it didn't sell it without disclosing this problem. I fried the sensor circuitry on a Hobbywing ESC by having a damaged sensor cable that I think shorted out the circuitry. Works fine sensorless.
02-10-2015, 06:28 AM
#4
Hopefully it's just the sensor cable. Flashing red and green means the ESC is/was in sensored mode, detected an abnormal sensor signal and went into sensorless mode.
In the mean time, if you have to run, just remove the sensor cable. Sounds like your setup runs OK in sensorless mode. Granted it's not ideal, but would save you all the hassles when racing. The ESC will just startup in sensorless mode.
Worst case is there's something wrong with the sensor board in the motor or the sensor circuitry in the ESC. Hopefully the person who sold it didn't sell it without disclosing this problem. I fried the sensor circuitry on a Hobbywing ESC by having a damaged sensor cable that I think shorted out the circuitry. Works fine sensorless.
In the mean time, if you have to run, just remove the sensor cable. Sounds like your setup runs OK in sensorless mode. Granted it's not ideal, but would save you all the hassles when racing. The ESC will just startup in sensorless mode.
Worst case is there's something wrong with the sensor board in the motor or the sensor circuitry in the ESC. Hopefully the person who sold it didn't sell it without disclosing this problem. I fried the sensor circuitry on a Hobbywing ESC by having a damaged sensor cable that I think shorted out the circuitry. Works fine sensorless.
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