Special drive modes (clock-direction and analog speed)
You can also determine the control mode – open loop or closed loop.
Digital input 4 serves here as an enable (see X2 – digital inputs).
You can configure the controller with the DIP switches on the rear side and select one of the special drive modes.
The configuration via the DIP switches is activated in the factory settings; you can completely deactivate the DIP switches by inserting this line in the configuration file:
The base setting in the factory settings is shown in the following figure.
A switch pushed up is in the "ON" position. A switch pushed down is in the "OFF" position.
|Off||On||Off||Clock-direction (test run)||Test run with 30 rpm||Clockwise direction of rotation|
|Off||On||On||Clock-direction (test run)||Test run with 30 rpm||Counterclockwise direction of rotation|
|On||Off||Off||Analog speed||Direction via "Direction" input||Maximum speed 1000 rpm|
|On||Off||On||Analog speed||Direction via "Direction" input||Maximum speed 100 rpm|
|On||On||Off||Analog speed||Offset 5 V (joystick mode)||Maximum speed 1000 rpm|
|On||On||On||Analog speed||Offset 5 V (joystick mode)||Maximum speed 100 rpm|
Switch 4 changes between Open Loop (off) and Closed Loop (on).
The maximum speed can be changed between 100 rpm and 1000 rpm. If a different speed is necessary, it can be set using the scaling factor (object 604Ch subindices 01h and 02h).
Computation of the analog voltage
There are two modes for calculating the analog input voltage.
- Normal mode
- You must connect the enable, direction and analog inputs (see chapter X2 – digital inputs). The maximum analog voltage corresponds to the maximum speed. The direction is preset here via the direction input. There is a dead zone from 0 V to 20 mV in which the motor does not move.
- Joystick mode
- You must connect the release input and the analog input (see chapter X2 – digital inputs). Half of the maximum analog voltage corresponds to the speed 0. If the voltage drops below half, the speed increases in the negative direction. If the speed rises above half, the speed increases likewise in the positive direction. The dead zone here extends from Umax/2 ± 20 mV.
Test run with 30 rpm
The motor rotates at 30 rpm if the enable input is set.