Moog IMI220-145D001, Руководство пользователя

Страница: 88 / 113

PARISON CONTROLLER
moog
88 MAN145-UM-D01A-EN Moog Italiana srl - Bergamo
4.11.3 Output Calibration.
Figure 90
Voltage output: Analog voltage output. (output N° 3 for extruder
1, N° 4 for extruder 2).
Maximum velocity: Maximum velocity in rpm.
Voltage with max velocity: Voltage output to get the maximum
velocity.
4.11.4 Velocity planned.
Figure 91
Min vel. output limit: Minimum value for the velocity setpoint.
Max vel. output limit: Maximum value for the velocity setpoint.
Increment slope:
Increase slope for the ramp expressed in rpm/sec.
Decrement slope: Decrease slope for the ramp expressed in rpm/sec.
4.11.5 Velocity control.
It is possible to enable the extruder speed correction.
If the
extruder is coupled to a continuous extrusion or time accumulation head, the error is calculated between
photocell and a programmed point or between photocell and die ready . The error is expressed in points.
If extruder speed is enabled and the extruder is coupled to the accumulator , the error is calculated between
end of filling signal and start injection signal . The error is expressed in percentage.
Speed correction is made in accordance with the following algorithm.
Errors lower than dead band values (in point with continuous extrusion, in percentage with accumulator) are not
considered (or is possible to apply a minimum correction).
An error between the maximum and minimum error (inside the window) is scaled on a maximum correction value
(in percentage or in millisecond). The correction is applied to extruder speed (with a ramp) or to the two digital
output (increment or decrement).
An error greater than the window can be ignored or cause the maximum correction.