Sensorless detection – Lenze 8615E User Manual

Page 119

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1.0s

ms)

1 0 . 0 s

1 0 s

1.0

(100 ms}

1 0 s

100

Diameter compensator

Diameter compensator reset

1.00 s ON-LINE

100s

9 9 0

SH + PRG

Sensorless

detection

The

compensator

also be used for

detection where there is no

detection System. The

modulation of the dancer-Position controller enables a slow control
of the

compensator output, until the dancer-Position

controller returns to a modulation window (Cl 94) to be set. The
acceleration and deceleration times C

be set in

seconds so that an instability in the control

by the dancer

modulation is avoided. The acceleration and deceleration times

be set so that a

increase

still be compensated.

9.11

Input of correction value

(only for asynchronous machines)

The correction value for the field frequency

be set

(see

flow

page 120). This value

only

be entered as a bit value (+ 16383 to 16383) via the serial

Cl 93 . lt

be saved via CO03. The

resolution and the increment of the correction value is 0.03 Hz as

the entered value 16383 equals 480 Hz.

Recommendation:

The entered correction value should not exceed the rated
frequency.

Caution!

entered value is immediately added to the calculated values

being processed by the ramp

generator. That

means that high correction

may lead to high torques and the

limiting

be activated (see

flow

10).

C o d e

setting is printed in

Correction

-16383

ON-LINE

L

v a l u e

only via LECOM possible.

117

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