And t, Reaching a drive system – Lenze EVF9383 User Manual

Page 181

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background image

Acceleration, deceleration, braking, stopping

Speed range

6.10

6.10.2

l

6.10−3

EDSVF9383V EN 7.1−04/2012

6.10.2

Setting acceleration times and deceleration times in speed mode

The acceleration and deceleration times determine the controller response
time after a setpoint change.

Codes for parameter setting

Code

Possible settings

IMPORTANT

No.

Name

Lenze Selection

C0012 Tir (acc)

5.00

0.00

{0.01 s}

9999.90 Acceleration time T

ir

of the main

setpoint

l

Refers to speed change
0 ... C0011

^
6.10−3

C0013 Tif (dec)

5.00

0.00

{0.01 s}

9999.90 Deceleration time T

if

of the main

setpoint

l

Refers to speed change
0 ... C0011

ƒ The acceleration and deceleration times refer to a speed change from

0 min

−1

to the max. speed set in C0011.

ƒ Calculate the times T

ir

and T

if

, which you can set under C0012 and

C0013.

n [min-1]

C0011

tir

tif

t

Tir

Tif

n2

n1

0

9300vec098

Fig. 6.10−2

Acceleration and deceleration times

T

ir

+ t

ir

@ C0011

n

2

* n

1

t

ir

and t

if

are the desired times for the change

between n

1

and n

2

T

if

+ t

if

@ C0011

n

2

* n

1

)

Note!

If the acceleration and deceleration times are set too short and
under unfavourable operating conditions the controller can be
switched off with TRIP OC1 or OC3. In these cases, the
acceleration and deceleration times must be set so that the drive
can follow the speed profile without I

max

reaching a drive

system.

Description

Adjustment

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