M A G U I R E P R O D U C T S , I N C .
28
G R A V I M E T R I C A U G E R F E E D E R
MTF
Motor Factor – model dependant - 1st gen pre-2012, second gen 1st quarter 2012
1st gen
analog motor Grams Per Second –
00075
(1/2” auger MGF-4),
00500
(1” auger MGF-8)
2nd gen
stepper motor Grams Per revolution –
3.00
(1/2” auger MGF-4),
12.50
(1” auger MGF-8)
Implied decimal after 3
rd
digit in 1st Gen MGF controllers.
XCV
Extruder Voltage – Volts
Factory Default - MGF-4: 00000, MGF-8: 00000
Current incoming voltage. Used in extrusion following, 1/100 volt. Automatic adjustment occurs to
throughput based on XMO parameter.
XMO
Extruder Max Output – Pounds or Kilograms / hour – 01000
Factory Default - MGF-4: 01000, MGF-8: 01000
For Extrusion Following, this parameter stores the maximum extruder throughput based off of the
XCV parameter at the maximum 10 volts. A manual entry of extruder throughput on the main
screen will automatically set the XMO parameter and will be scaled from the current incoming
voltage.
Example:
Incoming voltage is 5 volts. An Entry of 300 lbs. will set XMO to 00600 (lbs or
kg). Entering a 1 in the first digit (1xxxx) will only allow changes to extruder throughput on main
screen while in program mode (password protected).
LBE
Lower Boundary Error – Number
Factory Default - MGF-4: 00030, MGF-8: 00030
Error rate lower limit in 1/100
th
number
UBE
Upper Boundary Error – Number
Factory Default - MGF-4: 00300, MGF-8: 00300
Error rate upper limit in 1/100
th
number
NBW
Negative Bin Weight – whole grams
Factory Default - MGF-4: 00100, MGF-8: 00100
Negative weight read from the bin (hopper), which will disable loader, whole grams
LWA
Low Weight Alarm – whole grams
Factory Default - MGF-4: 00400, MGF-8: 00400
(0 = disabled)
Weight of hopper that triggers the low weight alarm
ATP
Adjustment Trip Point – grams
Factory Default - MGF-4: 00005, MGF-8: 00005
The fourth and fifth digits are the accumulative gram error that will force a readjustment of motor
speed (5 grams default).
RTU
Run-Time Update – intervals, seconds
Factory Default - MGF-4: 00201, MGF-8: 00201
This parameter holds two values; the first three digits are the successive number weight readings that must
be above (+) or below (-) the ATP parameter value before making an adjustment to the motor off-time. The
4
th
and 5
th
digits are amount of adjustment in seconds that will be made. Controlled by ADJ parameter.
ADJ
Adjustment Limit – Percent
Factory Default - MGF-4: 03005, MGF-8: 03005
Adjustment threshold and percentage when learning rate. This parameter holds two values. The
2
nd
and 3
rd
digits represent two things, percentage threshold (default 30%) and percentage
adjustment (also 30%). If actual is equal to or greater than the threshold value, adjustments will
be made by this amount (30% by default). If actual is less than this value, the adjustment will be
made by the amount represented in the 4
th
and 5
th
digits (10% by default).
Summary of Contents for GRAVIMETRIC AUGER FEEDER MGF-ST
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