CONTREX MLP-Trim - Manual (Page 109)

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MP-44 DEVIATION (ERROR)
Deviation (MP-44) displays the difference between the Ramped Reference (MP-46)
and the Feedback Frequency (MP-43) measured in units of hertz (pulses per second).
Deviation (MP-44) is not averaged or filtered; it is the ten millisecond frequency
calculation prior to the display update.
MP-45 SCALED REFERENCE
The Scaled Reference (MP-45) is the scaled setpoint number converted to hertz. It is
the calculated value that is input to the Acceleration/Deceleration routine. This
parameter may display numbers that are larger than 9999. These larger values are
displayed with two decimal places. For example, 10,000 hertz is displayed as “10.00.”.
MP-46 RAMPED REFERENCE
The Ramped Reference (MP-46) is the calculated output of the Acceleration/
Deceleration routine in hertz. It is the setpoint input to the PID compensation routine.
This parameter may display numbers that are larger than 9999. These larger values
are displayed with two decimal places. For example, 10,000 hertz is displayed as
“10.00.”.
MP-47 SPEED COMMAND OUTPUT
The Speed Command Output (MP-47) displays the level of calibrated full scale analog
output to the motor drive (J3 pin 1). Speed Command Output is displayed as a
percentage; 100 represents 100% of the calibrated full scale analog output.
MP-48 TRIM OUTPUT
The Trim Output (MP-48) is the calculated output of the PID Compensation routine.
The Trim Output (MP-48) added to the Feedforward equals the Speed Command
Output (MP-47). The Trim Output is represented in DAC (Digital-to-Analog Converter)
bits where 4096 equals 100% output, 2048 equals 50% output, etc.