Sequencing is an expansion of Indexing. A sequence is a series of indexes, timers, and I/O state changes that can be stored in the drive to make complex and repeatable moves. Advantages For simple repeating tasks, sequencing can be used to take the place of an external controller or greatly offload the controller’s responsibilities System Sequencing


Jogging is when motion is commanded at a defined constant velocity with infinite distance. Typically performed with a “push-and-hold” type switch, either through software or a physical actuator. Acceleration and deceleration limits are defined based on system requirements. Advantage Jogging is useful in some rotary applications requiring a precise velocity profile where positioning is not Jogging

Over the Network

Controls the drive over a network interface. There are several options for control including centralized and decentralized control where the drive has varying degrees of responsibility for calculating move profiles. Benefits Network commands reduce wiring and allow more information to transfer between the drive and controller In addition to the command signal, the controller can Over the Network

Encoder Following

Encoder Following is a control scheme where the encoder from one axis is used to command a second axis. This is a useful feature when it is desired to have one axis follow a second such as in a gantry or conveyor. Also referred to as Electronic Gearing. Advantage In simpler systems, Encoder Following can Encoder Following

Step & Direction

Adopted from stepper motor control, this command method uses two digital inputs to control motion. One input typically increments position or velocity while the other indicates the direction of motion. Advantage This is the easiest way to transition a machine from steppers to servos because the same stepper controller can be used to control the Step & Direction


Indexes are pre-configured moves stored in digital servo drives.  They can be either absolute or relative depending on the preference for the motion application. The move profiles, including acceleration, velocity, and deceleration, can be individually defined and stored together in the drive’s internal memory. This spares the controller from having to create a target move Indexing