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User manual SCAIME:
NU-Soft-eNod4F-E-0716_235704-C.doc
•
Dosing errors report:
this register describes exclusively the status of alarms that can occur, cf § alarms.
See coding definition in the table below:
b
15
… b
0
bits set to 1
Meaning
b
0
Instant flow rate > Max permissible instant flow rate
b
1
Instant flow rate < Min permissible instant flow rate
b
2
Flow rate control output > Max permissible flow rate control output
b
3
Flow rate control output < Min permissible flow rate control output
b
4
No weight variation on refilling
b
5
Too long refilling time
b
6
Empty hopper
b
7
External totalizer output overflow
b
8
Too long dosing batch time
b
9
Full hopper
b
15
… b
10
Reserved (0)
•
Dosing errors counter:
this register counts the dosing errors that may occur during dosing cycles. This
counter can only be cleared by
totalization / errors clear
command, cf § alarms.
•
Last dosing error:
the last dosing error that occurs is stored in this register. Coding definition is equal to the
variable
dosing errors report
. This register can only be cleared by
totalization / errors clear
command, cf §
functional commands.
•
Dosing quality factor:
every second a standard deviation of the
dosing weight deviation
successive values
is calculated. Lower is the value, more constant is the flow rate.
•
Totalization flow rate:
information of flow rate that reflects the flow rate used for totalization and can be
used for external display purpose (remote display or HMI). It has its own unity and filter.
•
Grand total (Great WU):
high level totalization in
weight unit
x 1000. This totalization can be cleared
separately by the
clear grand total
command. The data of this totalizer is being permanently backed up
internally, cf § totalization.
•
General total (Great WU):
high level totalization in
weight unit
x 1000. This totalization can be cleared
separately by the
clear general total
command. The data of this totalizer is being permanently backed up
internally, cf § totalization.
•
Extraction time:
time measurement of extraction activation, expressed in seconds. This value is cleared
each time the extraction is activated. This parameter may be used for the evaluation of the flow rate
accuracy of the loss in weight feeder.
•
Calibration of flow rate point n (control output value):
expressed in 0.01% of maximum output current or
voltage. Up to 10 calibration points can be configured, see flow rate calibration, cf § flow rate calibration.
•
Calibration of flow rate point n (flow rate value):
expressed in
weight unit
per
flow rate time unit
. Up to
10 calibration points can be configured, see flow rate calibration, cf § flow rate calibration.
•
Segments number for the calibration curve of flow rate:
when the flow rate of an extraction device has a
nonlinear response in function of the flow rate output control, up to 9 segments can be configured, see
flow rate calibration, cf § flow rate calibration.
•
Reference flow rate control output start refilling:
reference flow rate value corresponding to the flowrate
control output that is applied at the beginning of refilling phase in smart refill mode. In this mode, the flow
rate output control value is a function of the gross weight of the hopper or silo. This parameter can be
determined automatically by a learning cycle, cf § refilling.
•
Reference flow rate control output end refilling:
reference flow rate value corresponding to the flowrate
control output that is applied at the end of refilling phase in smart refill mode. In this mode, the flow rate
output control value is a function of the gross weight of the hopper or silo. This parameter can be
determined automatically by a learning cycle, cf § refilling.
•
Kp :
proportional coefficient of the PID controller that drives the extraction device. An increase of this
