1 Programming Reference
1.2 Calibration
Page 16 Docu-No.: 0590020601-EN Rev. 1.6.0
1.2 Calibration
Use the FF Calibration menu to perform feeder calibration.
If the VOL RATE function is activated in the Service Variable Index,
the volumetric rate will be calculated if a product bulk density is
entered in the PRODUCT CHANGE menu.
1.2.1 Calibration sub-menu
• Section 1.2.2 is for motor driven feeders
• Section 1.2.3 is for vibratory feeders
Parameter
Definition
INIT FF
Initial Feedfactor
Input of the starting feeding factor to determine the motor speed. The
Drive Command is calculated as follows (not for vibratory feeders):
DriveCommand(%) = 100 x (Setpoint/Initial Feedfactor)
The starting feed factor can also be calculated with the command
variable <AUTO F.F. CALIB>. Value of <0> will cause an Feedfactor
Alarm see page 21. The feeder will not
run with a Feedfactor of <0>.
Input range: 0 to 99999
Default: 100 kg/hr
AVG FF
Average Feedfactor
The value shows the estimated mass flow value expected at 100%
drive command and is calculated as (not for vibratory feeders):
AverageFeedfactor = 100 x (Massflow/DriveCommand(%)
Average Feedfactor represents the massflow capacity of the feeder
and is affected by bulk material characteristics and the current
feeder mechanical configuration.
Notes:
• The feeder will not
run with a Feedfactor of <0>.
Input range: Display only
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