Can a PLC control a stepper motor?
In this application PLC is used to control the operation of a stepper motor. Ladder Logic Diagram, the PLC program, uses step ladder instructions for implementation of the control algorithm. The motion control algorithm includes the control of stepper motor speed and direction of rotation.
How does a stepper motor connect to a PLC?
There are two main connection ways between stepper motor and PLC: one is the stepper motor at both ends of the wire winding to the output points of PLC, as shown in figure 1, by writing program control electricity, each coil in a certain order to achieve positive &negative Another way is to use PLC high-speed pulse …
How to control a stepping motor with s7-1200?
In S7-1200 we have the possibility of using already prepared instructions for controlling the stepping motors and servo drives. The simplicity with which we can configure the axis and later control it it makes it really worth to be interested in this technology.
Which is s7-1200 controller do I Need?
Fortunately, in our case, S7-1200 deals with the generation of both signals and it will be he who will ensure that the generated signals meet the required standard. All of the examples will be based on the controller version 1215C from firmware 4.1 and TIA Portal V13 software.
How many stepper motors can I connect to my controller?
In my controller I can drive up to four stepper motors, while in the controller 1211C we can connect only 2 stepper motors. For the role of our stepper motor controllers we will use very popular in the world of amateur designs CNC – M542. These are relatively cheap controllers that have really decent parameters.
Which is the control signal for the stepping motor?
It must be remembered that only the first four outputs can generate pulses at 100kHz. The next outputs are pulses with only 30kHz frequency. We must therefore correctly assign our control signals. The first four will be STEP signals, while the next four are DIR signals.