48 Settings, I/O and diagnostics on the control panel
PID output:
View the process PID output or set its range.
Unit:
PID customer unit. Sets the text shown as the unit
for setpoint, feedback and deviation.
Deviation:
View or invert process PID deviation.
Setpoint:
View or configure the process PID setpoint, ie. the
target process value.
You can also use a constant setpoint value instead
of (or in addition to) an external setpoint source.
When a constant setpoint is active, it overrides the
normal setpoint.
Feedback:
View or configure process PID feedback, ie. the
measured value.
Tuning
The
Tuning
submenu contains settings for gain,
integration time and derivation time.
1. Make sure it is safe to start the motor and run the
actual process.
2. Start the motor in remote control.
3. Change setpoint by a small amount.
4. Watch how feedback reacts.
5. Adjust gain/integration/derivation.
6. Repeat steps 3-5 until feedback reacts as
desired.
Sleep function
The sleep function can be used to save energy by
stopping the motor during low demand. By default,
sleep function is disabled. If d, the motor
automatically stops when demand is low, and starts
again when deviation grows too large. This saves
energy when rotating the motor at low speeds
would be useless.
See section
Sleep and boost functions for process
.
Menu item
Description
Corresponding
parameter
ACS580 FW.book Page 48 Wednesday, September 21, 2016 9:48 PM