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mmmmm
Table of Contents
Programming ................................................................................................................................25
Load Cell Balancing ..............................................................................................................................28
Typical two load cell belt scale ................................................................................................29
Zero Calibration ...........................................................................................................................32
RUN Mode ....................................................................................................................................33
Recalibration .....................................................................................................................34
Belt Speed Compensation ..................................................................................................................34
Material Tests ........................................................................................................................................35
% Change ......................................................................................................................................35
Material Test .................................................................................................................................37
Design Changes .....................................................................................................................................37
Recalibration ...........................................................................................................................................38
Routine Zero .................................................................................................................................38
Initial Zero .....................................................................................................................................39
Direct Zero ....................................................................................................................................39
Auto Zero .......................................................................................................................................40
Routine Span ................................................................................................................................41
Initial Span ....................................................................................................................................42
Direct Span ...................................................................................................................................43
Multispan ......................................................................................................................................43
On-line Calibration ................................................................................................................................46
Factoring .................................................................................................................................................50
Linearization ...........................................................................................................................................51
Operation ............................................................................................................................54
Load Sensing ..........................................................................................................................................54
Speed Sensing .......................................................................................................................................54
Differential Speed Detection ..............................................................................................................54
Moisture Compensation ......................................................................................................................55
Incline Compensation ..........................................................................................................................55
Modes of Operation ..............................................................................................................................56
Damping ...................................................................................................................................................57
mA I/O (0/4-20 mA) ................................................................................................................................57
Output .............................................................................................................................................57
Input ................................................................................................................................................57
Relay Output ...........................................................................................................................................58
Totalization ..............................................................................................................................................59
PID Control .........................................................................................................................61
Hardware .................................................................................................................................................61
Connections ............................................................................................................................................61
Setpoint Controller – Rate Control ..........................................................................................62
Setpoint Controller – Load Control ..........................................................................................62
Setpoint Controller – Master/Slave Control .........................................................................63
Setpoint Controller – Rate and Load Control .......................................................................64
Setup and Tuning ...................................................................................................................................64
Proportional Control (Gain), P ..................................................................................................64
Integral Control (Automatic Reset), I ......................................................................................65
Derivative Control (Pre-Act or Rate), D ..................................................................................66
Feed Forward Control, F ............................................................................................................66
PID Setup and Tuning ...........................................................................................................................67
