Hello!
We have a Black Jaguar running a Mini CIM motor. When we order it to give 100% power forward, we can see the motor is trying to move, but doesn’t. After a few seconds (around 3) the Jaguar stops delivering power, flashes red for a while and then goes back to solid yellow.
What can cause this behaviour? When the motor is connected straight to a battery it spins quite fast…
Thanks!
Flashing Red is the jaguar’s fault code. If you are pulling to much current this can happen.
From this manual http://www.ti.com/lit/ug/spmu131a/spmu131a.pdf
A slow flashing Red LED indicates that the MDL-BDC24 detected one of the following fault
conditions:
„ Power supply under-voltage
„ Over temperature
„ Over current
„ Limit switch activated in the current direction of motion
When a fault condition occurs, the motor shuts down and the LED indicates a fault state during the
fault condition and for 3 seconds after the fault cause is cleared (except for the limit switch fault, which is cleared instantly). A slow flashing Yellow LED indicates that the MDL-BDC24 is not
receiving a valid control signal.
How can I confirm that the motor is indeed pulling too much current?
By measuring your current with a clamp-on amp meter.
If you don’t have a clamp-on amp meter, you could try using a victor/talon in place of the Jaguar and if the breaker on the PD board snaps than you know.
Also try to unload the motor (disconnect it from what ever it’s driving, your climbing device or what ever it’s attached too) and then power it. The Jaguar will probably work fine if the motor is allowed to free spin. If it still faults, make sure you can spin the motor easily by hand. A recent post showed a brand new motor that had it’s internals messed up so it would stall.
Are you using CAN or PWM? If you are using CAN you can query the jaguar to find out how much current is it drawing as well as which fault condition it is.
Also if you use a clamp on amp meter be sure it can measure DC, as most do not.
Does the motor hum when the jaguar is sending power?
Have you tried swapping out the jaguar?
My guess is that something mechanical is binding and making it hard for the motor to spin.
There was a misunderstanding, it turns out the motor did not move even when connected straight to a battery. It was a mechanic fault that has been fixed. Thank you all!