Before you connect the motors to the sat-nms ACU-ODU, take care that the circuit breakers for the frequency inverters, motor drivers or conductors are in off position before connecting the motors.

1. Connect the motors to the sat-nms ACU-ODU as described in chapter 4.2.3 .
2. Connect the emergency stop button to its terminals, see chapter 4.2.2 . If you do not have one, take care that these terminals are bridged. Without a connection between these pins the power supply of the motors is disabled.
3. 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 circuit breakers.
4. Turn on circuit breakers of the frequency inverters, they have to run now.
5. Check the motor rotating directions, if necessary change it by interchanging the power wires of the motor cable.
6. Drive the antenna in every direction (AZ, EL and 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) If you need more detailed informations about the motor drivers, please refer to chapter 3.4 .