Motrona UF251, Руководство по эксплуатации

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For fine tuning of the input signal scaling it is possible to use the monitor function of the PC
software. If you like to do this, set register “Average” to 6 to activate average mode and
smooth the input signal. The monitor now will show very stable values of the analog input
(register code :5), which you can use to set your “High Voltage” and “Low Voltage” registers.
The voltage measurement with the monitor function provides an accuracy of 0.1%.
5.4. Motorized Potentiometer Mode
With the Motorized Potentiometer Mode you can program a voltage curve as desired to be
converted to output frequency. The output frequency can be ramped up and down by control
inputs “UP” and “DOWN” respectively. If no input is activated, the output frequency remains at
its actual value. The output frequency is limited by the minimum and maximum frequency
settings, regardless of whether the inputs are still active or not.
Settings: Set DIL-switch 4 and 7 according to chapter 4 . It is not necessary to apply any voltage
or current input signal to the unit, because the voltage curve is generated internally.
Set register “Low Voltage” to 0 and register “High Voltage” to 10000 (the range of the
internally generated voltage will be 0 to 10 V).
The output frequency range can be set by registers “Low Frequency” and “High Frequency”.
The output frequency curve can be defined by linearization function:
If you desire a linear output frequency curve, set registers P1(x) and P1(y) to 0 and registers
P2(x) and P2(y) to 100%. Non-linear characteristic can be programmed by using the linearization
function, as described in chapter
10 . To activate linearization function set register
“Linearization Mode” to unequal 0.
A change of the output frequency direction (phase A/B) can also be obtained by using the
linearization function. The ramp-up time (input “UP” activated) is set to register “Time Up” and
the ramp-down time (input “DOWN” activated) is set to register “Time Down”.
5.5. Repeat Mode
The repeat mode differs from normal motorized potentiometer mode only in one item:
The frequency curve is generated cyclically.
Control input “UP-DOWN” changes the direction of the frequency sequence and control input
“SET” stops the output cycle and freezes the actual frequency.
Settings: Set DIL-switch 4 and 7 according to chapter 4 . It is not necessary to apply any voltage
or current input signal to the unit, as the voltage curve will be generated internally.
All parameter setting is equal to normal motorized potentiometer mode (as described above)