A1000 - Electronic Line Shaft Software

High Precision

The Electronic Line Shaft (ELS) function allows a drive to precisely follow a master encoder (PG) signal in speed, direction, and phase.

Flexible Gear Ratio

The gear ratio between the master and the follower is adjustable. In addition, a gear ratio adjustment (“draw”) can be added to the speed reference via parameter, analog input, multi-function input MOP or serial communication.

Position Matching

The follower can match its position (phase angle) to the master within several quadrature encoder counts.

Two proximity switches

The automatic alignment feature is using two proximity switches connected to the trigger inputs on the follower drive. One switch is used to indicate the position of the master, and the other switch is used to indicate the position of the follower. When the alignment feature is activated and the machine is running, the distance between the trigger switches is measured and compensated.

A1000 - Electronic Line Shaft Software

Standard Specifications

Possible Digital Input Functions
  • Follower Disable
  • Ratio 2 Select
  • Advance Follower
  • Retard Follower
  • MOP Adjust Increase (MOP Adjust Inc)
  • MOP Adjust Decrease (MOP Adjust Dec)
  • MOP Adjust Reset (MOP Adj Reset)
  • Position Error Reset (Pos Err Reset)
  • Position Regulator Integral Reset (Pos Reg I Reset)
  • Follower Trigger (Follower Trigger)
  • Master Trigger (Master Trigger)
  • Align Follower Command
  • Functional Safety
Possible Digital Output Functions
  • Follower Position Deviation
  • Align Complete
  • In Alignment Open
Applications

The function is used in applications where the machinery being driven requires two mechanically isolated and motor-driven moving parts to maintain a constant position relationship.

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