TMS320F28069M: The device does not operate properly when a brake is applied to the outside

Sh.Sasaki

Part Number: TMS320F28069M

Hi all,

There is a problem that the device does not operate properly.
Please tell me if there is an improvement plan for the following.

Hardware:My customer's actuater
Software:lab13b

Actuator has brake to prevent vertical actuators from falling.
This brake is a magnet and fixes the actuator.
My customer's program is customized so that this brake is released
after the program enters the online state(CTRL_State_OnLine).

With this brake, it will not operate properly depending on the starting position of the actuator.
Perhaps after implementing "gMotorVars.Flag_enableSys = 1" and "gMotorVars.Flag_Run_Identify=1",
I think that there is alignment of the encoder before entering the CTRL_State_OnLine,
because it is not done normally by this brake.

In the case of such a system with a brake,
how will it become possible to operate normally if customized?

Best regards,

Sasaki

over 8 years ago

0 Baskaran Chidambaram over 8 years ago

TI__Genius 17370 points

Hello,
I am writing to let you know that a C2000 team member has been assigned to this post and should be answering shortly.

Regards
Baskaran

0 Yanming Luo over 8 years ago in reply to Baskaran Chidambaram

TI__Guru** 116090 points

What's the brake process, and what brake mode was used? Did you change "gMotorVars.Flag_enableSys" and "gMotorVars.Flag_Run_Identify" to 0 when braking, and lost the rotor position?
Keep calculating the rotor position and speed though the motor was braking without setting "gMotorVars.Flag_enableSys" and "gMotorVars.Flag_Run_Identify" to 0, and update the angle and speed from encoder when the motor start or re-start.

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TMS320F28069M: The device does not operate properly when a brake is applied to the outside