Lenze DDS Function library Drive - Manual (Page 81)

Function library LenzeDrive.lib
Special functions
2.7.3 Motor potentiometer (L_MPOT)
2−71
L
LenzeDrive.lib EN 1.7
2.7.3.1 Operation of the motor potentiometer
wTir
wTir
wTir
wTif
nUp_b
nDown_b
nHighLimit
nLowLimit
0
+
−
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
wTir
wTif
bUp_b
bDown_b
nHighLimit
nLowLimit
0
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).