Glossary – CONTREX MLP-Trim User Manual

Page 153

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Glossary - 3

GLOSSARY

Acceleration/Deceleration

Acceleration Time (CP-16) and Deceleration Time (CP-17)
control the rate of speed change in response to setpoint
changes. These parameters apply to both the Master and
Follower modes of operation.

Acceleration Time

See Appendix C; CP-16.

Alarms

See Appendix C; CP-10, 11, 12, 13, 14, or 15.

Calibration

Calibration matches the analog output of the MLP–Trim
with the analog input of the motor drive. It also zero and
spans the analog input.

Closed loop

A system that is controlled by manipulating the output
based on error (setpoint - feedback).

Closed Loop Compensation A mathematical term for a control algorithm that resolves
(PID) Software

the control error (feedback - setpoint) to zero.
Output = Kp X Error + K

I

Error dt + K

D

dError/dt

PID represents “Proportional + Integral + Derivative”.

Code Select Key

Press this key prior to entering a Parameter Code (either a
Control Parameter or a Monitor Parameter).

Control Command Send

The Control Command Send allows the host computer to
control the operating functions of the MLP–Trim that are
associated with the Logic inputs (Run, Stop, Setpoint
Select and Master/Follower).

Control Parameters

Control Parameters allow you to enter data that is unique
to your system (e.g., encoder resolution, Lead to Follower
ratios) and modify the MLP–Trim's operation for your
specific application (e.g., maximum RPMs, setpoints,
acceleration/deceleration ramp rates). There are Control

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