Flintec FT-13 - Manual (Page 31)

FT-13 Technical Manual, Rev. 1.40 March 2013 Page 31 of 56
7.6 Setup
[5--] Filling Block
[50-] + [51-] Filling Parameters
In this section the programme selection is done and the main filling parameters are defined.
[500 X] Programme selection
0 = Prog. 0 Filling into open container
(factory default value) 1 = Prog. 1 Filling below bunghole of the
container
2 = Prog. 2 Below surface filling in the container 3 = Prog. 3 Filling and emptying type 1
4 = Prog. 4 Accurate filling / Accurate discharging 5 = Prog. 5 Charging / Accurate discharging
6 = Prog. 6 Filling and emptying type 2 7 = Prog. 7 Filling the bag
8 = Prog. 8 Bag filling from hopper scale 9 = Prog. 9 Reserved
[501 XX] Preact correction factor
The material flow may change because of changes in temperature, viscosity, height of the material, etc.
This causes filling errors and the fine value has to be changed accordingly. FT-13 follows the filling errors
and adjusts the new preact value for the next filling cycle if the filling error is smaller than the value
entered in parameter [503]. The adjustment rate is defined by this parameter in percentage, the factory
default setting is 30%. The new preact value is calculated by the formula below:
New fine lead in = Fine lead in + (Actual – Target ) x Preact correction factor/100
[502 X] Preact correction frequency
Type FT-13 can adjust the fine value according to the filling error of the previous filling cycle. The preact
adjustment is applied each time after a certain number of filling cycles which is defined here to decrease
the filling time. The new fine value is calculated according to the entered rate in parameter [501];
e.g
, if the value of this parameter is set to “3”, the preact correction is done after each 3 filling cycles.
X = 0, 1, 2, 3…9; factory default setting is 1.
Attention: This parameter must be set to “1” if all cycles have to be controlled for tolerances. If you don‟t
want to make preact correction but data logging or tolerance check, then adjust parameter [502] to “1”
and parameter [501] to “0”.
[503 ] Preact correction limit
[ XXXXXX ] This parameter defines a limit for preact correction. If the filling error is larger than this
value , the preact correction is not applied. Factory default setting is 100%.
[504 X.X] Coarse feeding and middle feeding control delay
When the coarse feeding / middle feeding starts, the weight control is delayed for this time period. This is
particularly helpful if an extreme weight increase happens due to material strikes on the scale at the
beginning of the filling. The maximum value of this parameter is 9.9 s, factory default setting is 0.7 s.
[505 X.X] Fine feeding control delay
When the fine feeding starts the weight control is delayed for this time period for preventing coarse feed
overshoot effects. The maximum value of this parameter is 9.9 s, factory default setting is 0.7 s.
[506 X.X] Maximum settling time
[cd X.X] Time delay before maximum settling time starts; no operation;
Factory default setting = 0.0 s
[SL X.X] Maximum settling time;
Factory default setting = 1.0 s; the maximum value range is 9.9 s
If the weight display is not stable within the maximum settling time after the filling, FT-13 activates the
error output and gives a stability alarm. In this case the tolerance control cannot be performed.
Attention: Settling time is enabled when the preact correction function is enabled (parameter [502] ).
[507 X.X] Jogging time
If the filling weight is less than the target value, further material is added step by step with the time period
entered here. If it is set to “0”, no material addition is applied. It can be entered as a multiple of 100 ms.
Factory default setting is “0”.