MAGUIRE FLEXBUS Lite, Installation Operation & Maintenance

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The last digit determines the adjustment rate. Zero in the last position means make the full
adjustment immediately. Any value from 1 to 9 indicates the percentage adjustment that
will be made each cycle when the level sensor condition changes. See RHL below for
examples.
RHL LEVEL SENSORS are required for this parameter to work
Use only if you have regrind level sensors fitted
RHL instructs the controller to change the regrind setting of one selected regrind
component if optional level sensors in the regrind hopper indicate high or low conditions.
The component to be changed is determined by the first digit of the RLC parameter above.
If set to all zeros (RHL 00000), then this parameter is ignored.
RLC alters the way RHL is interpreted.
If the last digit of RLC = 0, (RLC x0000), then RHL numbers indicate NEW settings that are
to be run when regrind level is high or low.
If the last digit of RLC = 1 to 9 (ROV x0001) to (RLC x0009), then RHL indicates upper and
lower regrind usage limits only, and regrind usage will be adjusted slowly, to these limits,
based on the RLC number.
IF RLC equals zero (RLC 10000):
In this (and all) examples, RLC is selecting component 1 as the controlled component.
(RLC 10000)
If RHL is set to any value, the first 3 digits of the parameter indicate a new Regrind setting
to use when the material level is ABOVE the HIGH-level sensor; (sensor is covered). The
last 2 digits indicate a new setting to use if material level is BELOW the LOW sensor; (both
High and Low sensors are uncovered).
In other words, RHL allows the selection of a percentage that is HIGHER than normal, and
a percentage that is LOWER than normal. NORMAL is what you put on the bottom
thumbwheel switch.
Sensors are assumed to be covered when NO signal is returned. If a sensor is unplugged
from the controller, it is read as "covered".
If you only have ONE SENSOR, it must be used as a HIGH-level sensor. The absence of a
sensor is read as a covered sensor; so, the absence of the high sensor would signal the
system to run at the high setting all the time. This would not be acceptable. The absence
of the LOW sensor simple prevents the system from ever thinking it is very low. This is
acceptable.
With a high-level sensor only, the system switches between the NORMAL thumbwheel
setting and the HIGH setting indicated by the first 3 digits of the parameter. The last 2
digits have no effect, since a LOW condition is never detected.
Sensors that we supply are wired correctly for this logic. If a "Bindicator" or similar device
is used, with a micro-switch dry contact closure signal, then wire to the normally CLOSED
contact so that the signal OPENS when regrind covers the bindicator paddle.
The circuit board "pin outs" for each sensor are positive, ground, and signal. If you are
wiring using a dry contact closure, only the positive and signal lines are used. When the
contact is open, the signal is pulled to ground internally through a resistor.
Example: RHL is set to 90 and 10 percent (RHL 09010).