Difference between revisions of "Setpoint signal"

Latest revision as of 19:59, 28 August 2015

An example setpoint signal (target value) and measured response signal (realized output value) of a control system.

Setpoint (a.k.a reference) signal is a signal that will be used as target value in control systems. Typical occurrencies of setpoint signals in GD products are:

• Position setpoint
• Velocity setpoint
• Torque setpoint

I.e. position setpoint value may be "1234" which could mean a target position of 1234 mm in some linear actuator. Or torque setpoint of 5.0 could mean that motor is asked to produce 5 Nm torque.

Physical setpoint signal types[edit | edit source]

Setpont signals may have several representations in real world such as:

• Analog setpoint signal
• Pulse and direction signals
• PWM signal
• Serial communication command

In these cases there will be a conversion between input and output units. For example when using +/-10V as velocity setpoint, the relation between input to output types could be 1 Volt per 100 rpm (or any other scale).

Setpoint signal characteristics[edit | edit source]