Phase Controller - Lenze 9300 System Manual

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7.5.60.7
L

Phase controller

The phase controller is required to achieve phase synchronisation and driftfree standstill.
Tip!
Select a configuration with digital frequency coupling in C0005 since this serves to link all important
signals automatically. On this basis the system can be optimised.
Activating the phase controller
1. Configure a signal source with C0894, which provides the phase difference between set and
actual phase (see "Digital frequency configuration under C0005).
2. Select a value > 0 at the MCTRL-PHI-LIM input.
3. Trigger the input MCTRL-PHI-ON with HIGH (e.g. with FIXED1).
4. Set gain of the phase controller C0254 > 0 (see chapter 7.5.60.4)
– Before setting C0254, select a P-gain C0070 of the n-controller as high as possible.
– Increase C0254 during operation until the drive shows the required control response.
Influence of phase controller
The output of the phase controller is added to the speed setpoint.
•
If the actual phase is lagging, the drive is accelerated
•
If the actual phase is leading the drive is decelerated until the required phase synchronisation
is achieved.
The influence of the phase controller consists of:
•
Phase difference multiplied by the P-gain C0254
•
Additional influence via analog signal at MCTRL-P-ADAPT
•
Limitation of the phase controller output to ±MCTRL-PHI-LIM
Limitation of the phase controller output
This limits the max. speed-up of the drive at high phase differences.
Function library
EDSVS9332P-D21 EN 3.0
7-223