4.3.4 Motors

Before you connect the motors to the sat-nms ACU-ODM, take care that the motor drivers are not powered up yet.

1. Connect the motor drivers to the sat-nms ACU-ODM as described in chapter 4.2.2 .
2. Press the STOP button on the sat-nms ACU-ODMs website. By this you can be sure that no motor movement will occur by switching on the motor drivers.
3. Turn on power supply for the motor drivers, they have to run now.
4. If you use frequency inverters as motor drivers, set now the motor parameters to the frequency inverters as written in their documentation.
5. Check the motor rotating directions, if necessary change it by interchanging 2 phase-wires of the motor cable (3phase motor) or interchange + and - cable (DC motor).
6. Drive the antenna in every direction (AZ, EL and if available POL) until the limit switches stop the motor movement to ensure that the limit switches work well. ATTENTION! While doing this test it is absolutely necessary to be very mindful to check, if nothing collides!
7. Set the soft-limits to the desired values (e.g. 1° before the hardware limit switch is activated)