User guide

5 Function blocks
5.130 L_SdMotorPot - motor potentiometer
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Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05
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5.130 L_SdMotorPot - motor potentiometer
This FB replaces a hardware motor potentiometer and can be used as an alternative setpoint source
controlled via two inputs.
• The signal output is effected via a ramp function generator with linear ramps.
• The acceleration and deceleration time and the upper and lower limit value can be parameteri-
sed independently of each other.
• The behaviour after mains switching can be parameterised; in the Lenze setting the last output
value before the mains are switched off is re-established.
• The behaviour in the case of deactivation of the motor potentiometer function can also be pa-
rameterised.
Inputs
Function library: LenzeServoDrive FB is available as of library V02.04.xx.xx!
Runtime software licence:  Motion Control HighLevel  Motion Control TopLevel
Required retain memory: 212 bytes
Identifier/data type Information/possible settings
bUp
BOOL
Increase output value
TRUE With the acceleration time set in C04361/1, dnOut_n is increased
until the upper limit value has been reached (C04360/1).
•If the input bDown is set to TRUE at the same time, dnOut_n is not
changed.
bDown
BOOL
Decrease output value
TRUE With the deceleration time set in C04361/2, dnOut_n is decreased
until the lower limit value has been reached (C04360/2).
• If the input bUp is set to TRUE at the same time, dnOut_n is not
changed.
bDisable
BOOL
Deactivate motor potentiometer function
• This input has the second highest priority after bLoadStartValue.
• The behaviour of the output value dnOut_n in the case of deactivation can be se-
lected in C04362; in the Lenze setting the last output value is maintained.
TRUE Motor potentiometer function is deactivated.
bLoadStartValue
BOOL
Load motor potentiometer with starting value
• This input has the highest priority.
TRUE dnOut_n is set to the starting value dnStartValue_n.
• If the starting value is beyond the limit values parameterised, the
output value dnOut_n is limited to the corresponding limit value.
dnStartValue_n
DINT
Starting value in [%]
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