AKT2G-SM-L50 General Connection Examples

  • Risk of injury through electric shock and damage to the device!

    Bring the Bus Terminal system into a safe, de-energized state before starting mounting, disassembly or wiring of the Bus Terminals.

  • Connect the motor strands correctly!

    Connect the windings of a motor strand only to the terminal points of the same output driver of the stepper motor terminal, e.g.:

    • one motor strand to terminal points A1 and A2,
    • the other motor strand to terminal points B1 and B2.

    Connecting a motor strand to the terminal points of different output drivers (e.g. to A1 and B1) can lead to destruction of the output drivers of stepper motor terminal!

  • Use a brake chopper terminal (Global search and replace: AKT2G-BRC-000-000) for short deceleration ramps!

    Very short deceleration ramps may lead to temporarily increased feedback. In this case the terminal would report an error. In order to avoid this, a brake chopper terminal AKT2G-BRC-000-000 should be connected in parallel to the power supply for the motor so that any energy being fed back is absorbed.

  • Fuse protection of the supply voltage

    The electrical protection of the load voltage must be selected in such a way that the maximum flowing current is limited to 3 times the rated current (max. 1 second)!

Connection types

The AKT2G-SM-L50 Stepper Motor terminal has bipolar output stages and can control bipolar and unipolar motors.

Bipolar motors

Figure 8-53: Bipolar control (serial) of a bipolar motor

Figure 8-54: Bipolar control (parallel) of a bipolar motor

Unipolar Motors

Figure 8-55: Bipolar control with only one half of each winding is controlled


Connecting an encoder (24 V)

Figure 8-56: The encoder is supplied from the power contacts via terminal points 3 (+24 V) and 7 (0 V).