6encoder evaluation – Lenze 9400 User Manual

Page 244

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6

Encoder evaluation

6.3

Parameter setting

244

Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06

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From software version V7.0

onwards, the selection "3: Position controller active" is available in

C02570

.

• In contrast to the already existing selection "2: Position controller active (<= FW V5.xx)", this

selection considers the gearbox factor.

• Further explanations on this can be obtained from the following table:

C02570

= 2: Position controller active (<= FW V5.xx)

C02570

= 3: Position controller active

When the separate position encoder at the output end is

used, the reference speed to the tool is assumed. This

causes the acceleration and deceleration times not to

refer to the motor but to the encoder.

In order to re-establish the motor reference, the desired

acceleration time of the corresponding function must be

multiplied by the resulting gearbox factor.

When the separate position encoder at the output end is

used, the reference speed is referred to the motor. Thus,

all acceleration and deceleration times are calculated

with regard to the reference speed at the motor.

Example:

• Motor reference speed (C00011) = 3000 rpm

• Resulting gearbox factor = 10

• Acceleration time = 1 s

With 10 % setpoint selection:

• Motor speed = 100 % (3000 rpm)

• Tool speed = 300 rpm

• Acceleration time up to 10 % setpoint selection

(100 % motor speed) = 0.1 s

• Motor speed = 10 % (300 rpm)

• Tool speed = 30 rpm

• Acceleration time up to 10 % setpoint selection

(10 % motor speed) = 0.1 s

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