MAGUIRE Gravimetric Gateway LineMaster Installation Operation & Maintenance page 17

LineMaster
Upon a first time start-up of the process, the yield control system is placed in the Manual Mode.
The LIW controller learns the rate of the material flow through the mass flow hopper within 45
seconds and enters the logarithmic value in the control parameters. The controller will display the
learned yield rate and indicate the process can be switched into the Auto or Locked Mode. A
target value for the product weight per length desired is entered as a set point on the LIW
controller. The system can be switched into the Auto or Lock Mode and the speed of the extruder
will be adjusted to maintain the target weight per length value. As the line speed is increased to a
production level, the LIW controller will acknowledge the change and increase the signal to the
drive to maintain the desired product yield. The reaction of the LIW system to the process rate
change is almost instantaneous and will settle at the desired yield within 45 seconds of the
process reaching the final speed.
Once the LIW controller learns the throughput rate of a material, it is stored in the memory of the
controller. The controller can be left in the Auto or Locked mode if the same material is continued
or a similar bulk density material is used. If a new material with a different bulk density is used, the
start-up procedure must be re-initiated. According to the configuration of the XC program the
drives will simultaneously increase or decrease as either the line speed, throughput or gauge
requirements are changed.
Components
LIW-XX Mass Flow Hopper (sized for the required throughput)
as7190 Surge Hopper
XCC LineMaster Control Operator Interface
XC-3 LineMaster Extrusion Yield Control w/ Drive & Line Speed Control
includes the following components:
 XCD-X
 aspc0910
 XCD-T
 aspc2510 Drive Communications Cable, 100 ft.
 XCE-01
 aspc2210 Encoder Interface Cable, 100 ft.
An optional surge hopper, as7190, which mounts atop the LIW is available if the volume of
material in the transition from the mezzanine mounted blender is less than the capacity of the LIW
hopper
LIW MODEL
LIW-05
LIW-10
LIW-25
LIW-40 1,000 – 3,000
(optional)
Extruder Drive Speed Control, Analog 0 – 10 Vdc
LIW to Drive Interface Cable, 100 ft.
Take-off Drive Speed Control, Analog 0 -10 Vdc
Encoder, Pulse Generator
THROUGHPUT
LB/HR
5 – 300
100 - 600
500 – 1,500
454 – 1,364
KG/HR
2.2 – 136
45 – 272
228 – 682
Maguire Products, Inc.
HOPPER CAPACITY
3
.3 ft 8.5 liters
3
.6 ft 17.0 liters
3
1.6 ft 45.3 liters
2.5 ft 3 70.8 liters
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