Lenze DDS Function library Drive Manual do Utilizador descarregar pdf (Página 81)

Function library LenzeDrive.lib

Special functions

2.7.3 Motor potentiometer (L_MPOT)

2−71

LenzeDrive.lib EN 1.7

2.7.3.1 Operation of the motor potentiometer

wTir

wTif

nUp_b

nDown_b

nHighLimit

nLowLimit

−

nOut_a

Fig. 2−70 Control signals for the motor potentiometer

 bUp_b = TRUE:

– The signal at nOut_a runs up to its upper limit (nHighLimit).

 nDown_b = TRUE:

– The signal at nOut_a runs down to its lower limit (nDownLimit).

 bUp_b = FALSE and nDown_b = FALSE or bUp_b = TRUE and nDown_b = TRUE:

– The signal at nOut_a does not change.

Deactivation of the motor potentiometer

wTif

wTir

wTif

bUp_b

bDown_b

nHighLimit

nLowLimit

nOut_a

wTif

bInAct_b

Fig. 2−71 Deactivation of the motor potentiometer

 If bInAct_ = TRUE, then the motor potentiometer is deactivated

bInAct_b has priority over bUp_b and bDown_b.

If the motor potentiometer is deactivated, the signal at nOut_a follows the function set by byFunction.

You can set the following functions:

byFunction Meaning

0 No further action; nOut_a retains its value.

1 The motor potentiometer runs down to 0 %, using the run−down time Tif.

2 The motor potentiometer runs down to the lower limit, using the run−down time Tif nLowLimit.

3 The motor potentiometer immediately changes its output to 0 % (Important for the EMERGENCY STOP function).

4 The motor potentiometer immediately changes its output to the lower limit (nLowLimit).

5 The motor potentiometer runs up to the upper limit, using the run−up time Tir nHighLimit).

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