How too use CAN ESC on QGC

These days I’m trying to use ESC CAN.

The ESC model name is Zubax Robotics Orel 21

When i connected this ESC and motor to CAN 1and go to Power page on QGC and Changed the Sensor and Motor and than I clicked ‘start assignment’.
After clicked that button the motor took some action (I don’t know what is it)
But when i connected CAN2 and click the ‘start assignment’ button the motor didn’t action like when i connected CAN1 port.
So I think should i change some parameter about CAN or there is other way to use CAN2 port.

If there somebody know this problem
Please help me.