Rice Lake CB-2 Concrete Batch Controller Version 2.0 - Manual (Page 83)

Installation/Operation Manual - Appendix 79
Location
WATER
DELIVERY MODE = RESERVOIR WATER
WATER# = 1
FILL RESERVOIR = Slot 4, Bit 17
RESERVOIR DISCHARGE = Slot 4, Bit 1
*TAILWATER DISCHARGE = Slot 4, Bit 1
Slot 0, Bit 0
RESERVOIR EMPTY SENSOR = Slot 4, Bit 4
PULSE METER INPUT SIGNAL = Slot 4, Bit 20
PULSE COUNTER SET POINT = 17
*The tailwater discharge settings listed are valid if the tailwater uses the same discharge control signals as the
reservoir water. Slot 0, bit 0 will default tailwater discharge to the same control signal as reservoir discharge.
10.14 Tuning Inching Gates
There are four controls used in the CB-2 to tune inching gates which include three CB-2 application variables
and the 920i filtering variable.
The three CB-2 variables are the control rate filter in the scales database and the initial burst time and inch time
parameters found in the scales database for hopper scales or the locations database for loss in weight scales.
Initial Burst Time Parameter
Indicates the duration in seconds of the initial open signal. Adjust this to control how far the gate is initially
opened.
Inch Time Parameter
This indicates the duration in milliseconds (0.001 seconds) of the inching pulses.
Control Rate Filter
This specifies the time in milliseconds (0.001 seconds) both to wait for the flow rate to stabilize after moving the
gate and over which to measure the flow rate once it has stabilized.
The CB-2 will wait for this amount of time for the flow rate to stabilize after pulsing an inching gate and then
average the rate for the same amount of time to determine the next action to take.
The 920i indicator variables are the filtering parameters.
The rate of change calculation is based on filtered weight readings, so higher filtering settings will result in
slower response to sudden flow rate changes.