Lenze EVS9332xK Manual do Utilizador descarregar pdf (Página 252)

100

101

Function library

Function blocks

3.2.68 Speed setpoint conditioning (NSET)

3−224

EDSVS9332K−EXT EN 4.0

Priorities:

CINH NSET−LOAD NSET−RFG−0 NSET−RFG−STOP Function

0 0 0 0 RFG follows the input value via the set ramps

0 0 0 1 The value at the output of RFG is frozen

0 0 1 0 RFG decelerates to zero within the set deceleration time

0 0 1 1

0 1 0 0 RFG accepts the value applied to input NSET−SET and passes it to its

output

0 1 0 1

0 1 1 0

0 1 1 1

1 0 0 0 RFG accepts the value applied to input CINH−VAL and passes it to its

output

1 0 0 1

1 0 1 0

1 0 1 1

1 1 0 0

1 1 0 1

1 1 1 0

1 1 1 1

3.2.68.4 S ramp

The linear ramp function generator is connected to a PT1 element. This arrangement implements an

S ramp for an almost jerk−free acceleration and deceleration.

l The PT1 element is switched on and off via C0134.

l The time constant is set via C0182.

3.2.68.5 Arithmetic operation

The output value is led to an arithmetic FB. This FB links the main setpoint and the additional setpoint

arithmetically. The arithmetic operation is selected via C0190 (see the following table).

C0190 Function Example

0 Output = X (Y is not processed) −

1 Output = X + Y 100 % = 50 % + 50 %

2 Output = X − Y 50 % = 100 % − 50%

3* Output = X * Y 100 % = 100 % * 100%

4* Output = X/|Y| 1 % = 100 % / 100%

5 Output = X/(100% − Y) 200 % = 100 % / (100 % − 50 %)

*) Please observe the note for C0190 = 3, 4 in the following chapter

1 2 ... 247 248 249 250 251 252 253 254 255 256 257 ... 385 386

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