4 s-shaped ramp generator characteristic, 5 limitation of the frequency setting range – Lenze 8615E User Manual

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6.4

S-shaped ramp generator characteristic

For the ramp generator of the main set-value you can select two
different characteristics under C134:

linear characteristic for all constant accelerations

S-shaped characteristic for all jerk-free accelerations.

Code

Parameter

Meaning

Acceptance

C134

-0-
-1-

linear characteristic
S-shaped characteristic

SH + PRG

6.5

Limitation of the frequency setting range

If the drive must rotate in only one direction, because a reversal
may damage material or machine parts, you can restrict the setting
range of the output frequency to one direction of rotation under
C239.

Especially for configurations with closed-loop speed control the drive
may reverse for a short time.

Code

Parameter

Meaning

Acceptance

C239

-0-
-1-

f

d

-setting range bipolar

f

d

setting range unipolar, i.e. f

d

0

SH + PRG

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