Siemens SIMOTION C 230-2 Operating Instructions Manual page 28

Description
2.3 The fundamentals of motion control
Position-controlled motion control for servo axes (PROFIBUS DP)
SIMOTION C enables position-controlled motion control of axes via PROFIBUS DP.
Figure 2-6
Stepper motor control (C230-2, C240)
In addition to the analog setpoint outputs, the C230-2/C240 has pulse outputs for up to four
stepper motor axes. The stepper motor is controlled by means of cycle clocks, the number of
which determines the position and the frequency of which determines the rotational speed
(velocity). The actual position value is not measured during controlled operation; the position
controller takes the number of pulses output (position setpoint) as the actual value. With this
type of control circuit, the motor cannot lose any steps in order to enable exact positioning.
Figure 2-7
28
Servo system with converter, for example SIMODRIVE 611 Universal
Controlled stepper motor system with control circuit
Operating Instructions, 11/2022, A5E33441428B
SIMOTION C