Up Factor - Payload Calculation Gain; Description Of Up Factor; Pl Mode - Load Calculation Timing; Load Calculation Timing - Komatsu 930E-2 Shop Manual

UP Factor - Payload Calculation Gain

Description of UP Factor

The payload calculation gain, or UP factor is multiplied
to the actual calculated load. From the example shown
in Figure XX, the calculated load is 143.8 tons. If the
UP factor is set to +5% the displayed load will be 143.8
x 1.05 = 151 tons. This factor can be used to minimize
the effects of systematic error for a particular truck. The
UP factor is not applied uniformly to all load calcula-
tions. There are three operating modes for the payload
meter and the UP factor is applied differently to each
mode. Therefore, it is recommended that this percent-
age be set to 0. There are significant differences in final
calculated load that can be introduced by adjusting this
gain.
Payload meters sent from the factory are typically set
to "UP: 5" indicating a +5% gain in final load.
This should be checked on all new meters and
changed to "UP: 0".

PL Mode - Load Calculation Timing

Load Calculation Timing

The PL mode controls when the payload meter takes
a sample of the data and calculates the load. There
are three modes available. There are two sets of data
that are affected by the PL mode setting.
• Modular Mining Transmission
• Memory Storage
The PL mode setting can have a significant impact on
the perceived accuracy of the payload meter.
PL:00 is the only recommended setting.
Use of settings other than PL:00
is NOT recommended.
M20007 10/00
Careful consideration must be given to the use of
PL:01 and PL:10. These modes divide the data trans-
mitted by Modular Mining and the data stored in the
payload meter's memory. Additionally, each mode
handles the UP factor differently and can calculate
different loads for the same haul cycle. For these
reasons it is recommended that the payload meter
be set to use PL:00 in all cases.
PL:00
Modular Mining Transmission - The data is captured
at the last transition from 0 to 1 MPH prior to traveling
160 meters from the shovel. The captured data is
transmitted when the truck travels 160m from the
shovel. This load calculation will use the UP factor
percentage.
Memory Storage - Same as above, the data is cap-
tured at the last transition from 0 to 1 MPH prior to
traveling 160 meters from the shovel. The captured
data is stored into memory when the body rises at the
dump. This load calculation will use the UP factor
percentage.
PL:01
Modular Mining Transmission - The data is captured
at the last transition from 0 to 1 MPH prior to traveling
160 meters from the shovel. The captured data is
transmitted when the truck travels 160m from the
shovel. This load calculation will use the UP factor
percentage.
Memory Storage - The data is captured and stored
when the body rises from the frame. This calculation
will not use the UP factor percentage.
PL:10
Modular Mining Transmission - The data is captured
and transmitted when the truck travels 160 meters
from the shovel. This calculation will not use the UP
factor percentage.
Memory Storage - The data is captured and stored
when the body rises from the frame. This calculation
will not use the UP factor percentage.
Payload Meter II M20-23