Follower lead, Code select set point tach, Final product – CONTREX MLP-Drive User Manual
Page 15
1 - 5
Figure 1-2 is an example of the Follower mode of operation in a pump application. The
scaling format allows the operator to enter the setpoint as a ratio of ingredient B to
ingredient A. The MLP-Drive compares the setpoint ratio to the Follower sensor shaft
(feedback) and Lead sensor shaft to calculate any speed error. When the MLP-Drive
finds speed error, the control algorithm adjusts the drive output and reduces the error to
zero.
Figure 1-2 MLP-Drive Follower Mode
MLP-Drive
Drive
Output
Lead Motor
Sensor
Pump
Feedback Frequency
MLP-Drive
Drive
Output
Follower Motor
Sensor
Pump
Feedback Frequency
Ingredient B
Ingredient A
Follower
Lead
Final Product
Lead Frequency
Contre
x
CODE
SELECT
SET
POINT
TACH
7
8
9
4
5
6
1
2
3
0
–
.
ENTER
CLEAR
Contre
x
CODE
SELECT
SET
POINT
TACH
7
8
9
4
5
6
1
2
3
0
–
.
ENTER
CLEAR