Vonsch Quatrofrem Series, Конфигурация и диагностика

Страница: 163 / 180

UNIFREM v.3.41x
10 May 2017 Page 163 from 180
„ Source of PC setpoint “ = „AIN1“.
If we want to set a fixed setpoint level, „ Source of freq. setpoint “ =
„Value“ and „ Setpoint value “ = 30cm (if the desired level height is
30 cm). The value can be set only within the set limits „Min.
setpoint value“ a „Max. setpoint value“
„ Feedback source “ = „AIN2“.
If fixed value is a source of the feedback, it is adjusted accordingly
as the setpoint value. Obviously it is necessary to adjust
corresponding constants of PID process controller.
9.1.5 Converter output setting
It is necessary to set the corresponding parameters of the the motor, ramps, V/f curve etc.
In menu „ SETTINGS – COMMANDS – FREQUENCY SETPOINT “
„F reverse source [195]“ = „ No reverse “. Otherwise, we would allow the pump to go into reverse
mode, i.e. pump would draw off from the tank if needed.
V menu „ SETTINGS – COMMANDS – FREQUENCY SETPOINT – Source of freq. setpoint =
Special “
In the menu „ SETTINGS – COMMANDS – FREQUENCY SETPOINT – SPECIAL SETTING “
„Freq. setpoint signal“ = „ DIAGNOSTICS – Functions – Process controller – Output PC“, this will
set, that the output frequency of the converter is controlled by the process controller
9.1.6 Monitoring
In the menu „ DIAGNOSTICS – Inputs / outputs – AIN “
There is possible to monitor the analog inputs either in physical units „AIN1“, „AIN2“ or in relative
units „AIN1 Rel.“, „AIN2 Rel.“
In the menu „ DIAGNOSTICS – Functions – Process controller “
There is possible to monitor process controller in process units.
In the menu „ DIAGNOSTICS – Command – Freq. setpoint “
There is possible to monitor the recalculated process controller output to the setpoint frequency.