CONTREX CX-1010 - Manual (Page 3)

Page 3
CX-1010 Start Up Guide
Introduction
The CX-1010 motion controller is used in conjunction with various types of motor
drives for precision control of motors in industrial applications. In most
applications, its signal voltage output is used as a speed command input by the
motor drive. It requires a feedback input signal, usually a frequency, indicating
motor or process speed. Based on the setpoint and feedback inputs, the CX-1010
adjusts the speed command output to maintain the required motor RPM. This
simple form of control is called master mode.
Often, a second frequency, usually coming from another motor, is fed to the
CX-1010 to serve as a pacing or lead signal. In this case, the CX-1010 maintains a
ratio of speeds between the lead motor and the motor it is controlling. This form of
control is called follower mode.
This guide is intended to assist with the start up of elementary master and follower
systems. More involved applications should be implemented only after the system is
working as herein described. Refer to the CX-1010 Technical Reference Manual for
a more comprehensive and detailed explanation of the CX-1010's features and
operations.
The CX-1010 start-up procedure consists of:
• Basic wiring
• Motor drive set up
• Speed command output scaling
• Signal polarity verification
• Master mode and feedforward scaling
• Follower mode scaling
The following assumptions are made:
• The CX-1010 will control velocity (master) or a ratio of velocities
(follower).
• Speed sensors for feedback and lead will be digital (frequencies).
• Except for the changes required here, the CX-1010, including its PLC,
will be programmed as factory default.
• The default tuning for the CX-1010 should be stable for most
applications and will not be discussed here.
• Quadrature sensors are required for bipolar applications.