CONTREX ML-Drive User Manual
Page 46
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Master Mode Example
The following example demonstrates how scaling and setpoint Control Parameters are
entered for a typical Master mode of operation:
A pump delivers 15 gallons/minute when the motor runs at a maximum
RPM of 1725. The motor shaft is equipped with a 30 tooth ring kit. The
Master Engineering Units are gallons per minute. Master Setpoint 1 will
be setup to pump 10 gallons per minute when it is the active setpoint.
Master Setpoint 2 will be setup to pump 5 gallons per minute when it is
the active setpoint.
Table 3-7 shows the scaling Control Parameters that would be entered in the ML-Drive
for this example.
Table 3-7 Master Mode Control Parameters Example
CP
Parameter Name
Parameter Value
CP-34
Max RPM Feedback
1725
CP-31
PPR Feedback
30
CP-20
Master Engineering Units
15
CP-01
Master Setpoint 1
10
CP-02
Master Setpoint 2
5
After the Scaling and the Master Setpoints for your system have been entered, you can
enter the Acceleration/Deceleration Control Parameters for the Master mode. The
Acceleration/Deceleration Control Parameters are identical for both the Master and the
Follower modes of operations. Acceleration/Deceleration is discussed in
Operation:
Control Parameters, Acceleration/Deceleration,
page 3-26.
The following section demonstrates how to enter Control Parameters for the Follower
mode of operation.