Emotron FDU Series, Инструкция по эксплуатации, Страница: 128 / 260

124 Functional description CG Drives & Automation 01-7491-01r0
F(Value), Process Min [327]
This function is used for scaling if no sensor is used. It offers
you the possibility of increasing the process accuracy by
scaling the process values. The process values are scaled by
linking them to known data in the AC drive. With
“F(Value) Proc Min [327]” the precise value at which the
entered “Process Min [324]“is valid can be entered.
F(Value), Process Max [328]
This function is used for scaling if no sensor is used. It offers
you the possibility of increasing the process accuracy by
scaling the process values. The process values are scaled by
linking them to known data in the AC drive. With F(Value),
Proc Max the precise value at which the entered “Process
Max [525]” is valid can be entered.
Example
A conveyor belt is used to transport bottles. The required
bottle speed needs to be within 10 to 100 bottles/s. Process
characteristics:
10 bottles/s = 150 rpm
100 bottles/s = 1500 rpm
The amount of bottles is linearly related to the speed of the
conveyor belt.
Set-up:
“Process Min [324]” = 10
“Process Max [325]” = 100
“Ratio [326]” = linear
“F(Value), ProcMin [327]” = 150
“F(Value), ProcMax [328]” = 1500
With this set-up, the process data is scaled and linked to
known values which results in an accurate control.
Fig. 101
NOTE: If Speed, Torque or Frequency is chosen in
menu “[321] Proc Source”, menus [322]- [328] are
hidden.
327 F(Val) PrMin
Default: Min
Min -1
According to Min Speed setting in
[341].
Max -2
According to Max Speed setting in
[343].
0.000-10000 0-10000 0.000-10000
NOTE: If Speed, Torque or Frequency is chosen in
menu “[321] Proc Source”, menus [322]- [328] are
hidden.
328 F(Val) PrMax
Default: Max
Min -1 Min
Max -2 Max
0.000-
10000
0-10000 0.000-10000
F(Value)
PrMax
[328]
1500
150
F(Value
PrMin
[327]
10
Process Min [324]
100
Process Max [325]
Linear
Bottles/s