Lenze Drive PLC Developer Studio 9300 Servo PLC (V8.x) Manual de usuario descargar pdf (Pagina 68)

2.12 MCTRL_MotorControl (node number 131)

9300 Servo PLC

System blocks

2−54

9300 Servo PLC EN 5.0

2.12.9 Speed setpoint limitation

The speed setpoint limitation can be set under C0909:

Code LCD

Possible settings

Info

Lenze Selection

C0909 speed limit

1 Speed setpoint limitation

1 −175 % ... +175 %

2 0 % ... +175 %

3 −175 % ... 0 %

 Select the speed setpoint via MCTRL_nNSet_a in [%] of n

max

 n

max

is selected under C0011. (^ 2−51)

2.12.10 Phase controller

The phase controller is needed, i.a., to ensure phase−synchronous operation and drift−free standstill.

Parameter setting

1. Assign MCTRL_nPosSet_a to a signal source which provides the phase difference between

set phase and actual phase.

2. Define a value > 0 for MCTRL_nPosLim_a.

3. Set MCTRL_bPosOn_b = TRUE.

4. Set the gain of the phase controller > 0 via C0254.

– Before setting C0254, select a proportional gain for the speed controller as high as possible

under C0070.

(^ 2−52)

– Increase C0254 during operation until the drive shows the required control performance.

Code LCD

Possible settings

Info

Lenze Selection

C0254 Vp angle CTRL

0.4000 Gain of angle controller (V

)

0.0000 {0.0001} 3.9999

Effect of the 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 desired phase synchronisation

is achieved.

The influence of the phase controller consists of:

 Phase difference multiplied by the gain V

(C0254).

 Additional influence via an analog signal at MCTRL_nPAdapt_a.

= C0254  MCTRL_nPAdapt_a / 16384)

 Limitation of the angle controller output to MCTRL_nPosLim_a.

Limitation of the phase controller output

This value limits the maximum compensation speed of the drive in the event of large phase

differences.

1 2 ... 63 64 65 66 67 68 69 70 71 72 73 ... 166 167

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Lenze Drive PLC Developer Studio 9300 Servo PLC (V8.x) Manual de usuario Pagina 68

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