CONTREX ML-TRIM User Manual

Page 139

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C - 3

CP-15

SCALED ERROR ALARM

The Scaled Error Alarm (CP-15) is the RPM deviation between the scaled reference and the
feedback that will activate the Alarm output (at or above).

CP-16

ACCELERATION TIME

Acceleration Time (CP-16) controls the rate of speed change in response to setpoint changes.
This Control Parameter applies to both the Master and Follower modes of operation. Enter the
desired number of seconds to increase the motor speed from 0 to 2000 RPMs.

CP-17

DECELERATION TIME

Deceleration Time (CP-17) controls the rate of speed change in response to setpoint changes.
This Control Parameter applies to both the Master and Follower modes of operation. Enter the
desired number of seconds to decrease the setpoint in the range of 2000 to 0 RPMs.

CP-20

MASTER ENGINEERING UNITS

The actual value of the Master Engineering Units (CP-20) if the system were to operate at the
desired maximum RPMs (refer to CP-34). This is not to be confused with the setpoint, which is
the Master Engineering Units at which you want the system to operate.

CP-21

FOLLOWER ENGINEERING UNITS

In Follower Engineering Units (CP-21), enter a number that will represent the setpoint
Engineering Units when the Lead and Follower are operating at the maximum desired RPM.
This number is usually the ratio of Max RPM Feedback (CP-34) to Max RPM Lead (CP-33).
When this number is also entered as a setpoint (CP-03 or CP-04), the Follower will operate at
Max RPM Feedback (CP-34) when the Lead is at Max RPM Lead (CP-33).

CP-30

PPR LEAD

PPR Lead (CP-30) is the number of gear teeth or number of encoder lines on the Lead sensor
per revolution (pulses per revolution).

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