Parker: Closed Loop Stepper Systems - E Series (eCLD-4DC-PC)
The new eCL series introduces simple and precise closed loop control to Parkers micro stepping product platform. The eCL system maintains the inherent advantages of stepper control while eliminating common disadvantages through the addition of an innovative closed loop control algorithm for optimum performance

Available in two driver form factors (4A) and (2A)

24VDC input

Small, precise, high torque stepper motors with connectors

EtherCAT and Step/Direction drive options

All motors include encoders (Nema8, 11, 17, 23)

Selectable resolution up to 50,000 steps/rev.

Closed loop performance without tuning

The eCL system maintains the inherent advantages of stepper control (high torque, stiffness, responsiveness, stability, no dither, simplicity) while eliminating common disadvantages (stalling, energy usage, motor temp, high speed operation, positional accuracy) through the addition of an innovative closed loop control algorithm.

Closed Loop System

The eCL system is an innovative closed loop stepper motor and controller that utilizes motor mounted feedback to constantly monitor shaft position. Actual motor shaft position data is updated every 25 microseconds allowing the drive to compensate for sudden load changes ensuring accurate position control.

• In-position output signals controller that move is complete

• Prevents stalls thru position monitoring

• Alarm signal to controller if overload results in motor stalling

• Reduced motor heating and energy usage

No Tuning, no hunting

Unlike traditional closed loop servo systems, the eCL system requires no tuning. Gains have been optimized for the motor/drive combination to insure smooth and stable motion.

Once the eCL motor reaches its target position, the rotor locks into place at a perfect standstill. Traditional servo motors typically hunt between encoder pulses at standstill which could adversely affect applications requiring zero vibration.

Better Performance Synchronization errors and motor stalling that plague traditional stepper systems are eliminated with the eCL’s closed loop control algorithm allowing for higher torque and speed performance.

Downloads:

1.EtherCAT Drive Brochure

2.Step Direction Drive Brochure

3.eCL User Manual

4.eCLD_Drive Solid Models