Programming Guide | VLT® AutomationDrive FC 360
3. The drive activates parameter 1-80 Function at Stop. The drive is now in sleep mode.
4. The drive compares the speed setpoint with parameter 22-43 Wake-Up Speed [Hz] to detect wake-up situation.
5. The speed setpoint is greater than parameter 22-43 Wake-Up Speed [Hz] and the sleep condition has lasted for more than parameter
22-41 Minimum Sleep Time. The drive is now out of sleep mode.
6. Go back to speed open loop control (ramp motor speed up to the speed setpoint).
The sequence when running sleep mode in closed loop:
1. If parameter 20-81 PI Normal/ Inverse Control = [0] Normal. When the error between reference and feedback is greater than
parameter 22-44 Wake-Up Ref./FB Diff, the drive enters boost status. If parameter 22-45 Setpoint Boost is not set, the drive enters
sleep mode.
2. After parameter 22-46 Maximum Boost Time, the drive ramps the motor speed down to parameter 1-82 Min Speed for Function at
Stop [Hz].
3. The drive activates parameter 1-80 Function at Stop. The drive is now in sleep mode.
4. When the error between reference and feedback is greater than parameter 22-44 Wake-Up Ref./FB Diff, and the condition lasts more
than parameter 22-41 Minimum Sleep Time, the drive is out of sleep mode.
5. The drive reverts to closed loop control.
 NOTICE
Sleep mode is not active when local reference is active (set speed manually with navigation keys on the LCP). Does not work in
hand-on mode. Auto setup in open loop must be carried out before setting input/output in closed loop.
22-40 Minimum Run Time
Default value: 10 s Parameter type: Range (0–600 s)
Setup: All setups Conversion index: 0
Data type: Uint16 Change during operation: True
Set the wanted minimum running time for the motor after a start command (digital input or bus) before entering sleep mode.
22-41 Minimum Sleep Time
Default value: 10 s Parameter type: Range (0–600 s)
Setup: All setups Conversion index: 0
Data type: Uint16 Change during operation: True
Set the minimum time for staying in sleep mode. This time overrides any wake-up conditions.
22-43 Wake-Up Speed [Hz]
Default value: 10.0 Parameter type: Range (0.0–400.0)
Setup: All setups Conversion index: -1
Data type: Uint16 Change during operation: True
Only to be used if parameter 1-00 Configuration Mode is set to [0] Open loop, and an external controller applies speed reference. Set
the reference speed at which the sleep mode should be deactivated. The wake-up speed must not exceed the setting in parameter 4-14
Motor Speed High Limit [Hz].
Danfoss A/S © 2024.01 AU275649936274en-001401 / 130R0507 | 277
To Next Page
Loading...
Need help?
General