Lenze DDS Function library Drive Manual de usuario descargar pdf (Pagina 86)

2.7.4 Speed preconditioning (L_NSET)

Function library LenzeDrive.lib

Special functions

2−76

LenzeDrive.lib EN 1.7

2.7.4.4 Ramp generator for the main setpoint

The setpoint is then led via a ramp generator with a linear characteristic. The ramp generator converts

setpoint jumps at the input into a ramp.

100%

RFG−OUT

[%]

+ t

100%

w2 * w1

+ t

100%

w2 * w1

Fig. 2−74 Acceleration and deceleration times of the ramp generator

w1 ,w2 Change of the main setpoint, depending on t

or t

RFG−OUT Output of the ramp generator

 T

−times are fixed values that are stored under

– adnTir[0] ... adnTir[14] (ramp−up times) and

– adnTif[0] ... adnTif[14] (ramp−down times) in the memory.

 The T

−times can be called from the memory by bTI1_b ... bTI8_b

– These inputs are binary coded, so that 16 T

−times can be called.

– The T

−times can only be activated in pairs.

 The decoding for the enabling of the T

−times (calling from the memory) is made according to

the following plan:

Acceleration time Deceleration time bTI8_b bTI4_b bTI2_b bTI1_b

dnTir dnTif 0 0 0 0

adnTir[0] adnTif[0] 0 0 0 1

adnTir[1] adnTif[1] 0 0 1 0

adnTir[2] adnTif[2] 0 0 1 1

adnTir[3] adnTif[3] 0 1 0 0

adnTir[4] adnTif[4] 0 1 0 1

adnTir[5] adnTif[5] 0 1 1 0

adnTir[6] adnTif[6] 0 1 1 1

adnTir[7] adnTif[7] 1 0 0 0

adnTir[8] adnTif[8] 1 0 0 1

adnTir[9] adnTif[9] 1 0 1 0

adnTir[10] adnTif[10] 1 0 1 1

adnTir[11] adnTif[11] 1 1 0 0

adnTir[12] adnTif[12] 1 1 0 1

adnTir[13] adnTif[13] 1 1 1 0

adnTir[14] adnTif[14] 1 1 1 1

0 = FALSE

1 = TRUE

1 2 ... 81 82 83 84 85 86 87 88 89 90 91 ... 102 103

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Lenze DDS Function library Drive Manual de usuario Pagina 86

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