1 l_mpot_1, L_mpot_1, 12 function library – Lenze 8400 motec User Manual
Page 439
Lenze · 8400 motec · Reference manual · DMS 4.1 EN · 08/2013 · TD05
439
12
Function library
12.1
L_MPot_1
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12.1
L_MPot_1
This FB replaces a hardware motor potentiometer and can be used as an alternative setpoint source
which is controlled via two inputs.
• The signal is output via a ramp function generator with linear ramps.
• The acceleration and deceleration times are set via parameters.
• Constant ramping even with speed limit values changed online.
• The motor potentiometer function can be switched on/off online via parameters or a process
signal.
Inputs
Identifier
Data type
Information/possible settings
bEnable
BOOL
Switch over motor potentiometer function
bEnable input and
code are ORed.
TRUE Motor potentiometer function is active, setpoint can be changed via
bUp and bDown.
• With switching to TRUE, the value applied to nIn_a is
automatically transferred to the motor potentiometer.
FALSE The value applied to nIn_a is output at nOut_a.
nln_a
INT
When bEnable = FALSE, the analog input signal nIn_ is switched to the nOut_a
output.
bUp
BOOL
Approaching of the upper speed limit value set in
.
TRUE The nOut_a output signal runs to its upper limit value (nHighLimit).
• If the bDown input is simultaneously set to TRUE, the nOut_a
output signal is not changed.
bDown
BOOL
Approaching of the lower speed limit value set in
.
TRUE The nOut_a output signal runs to its lower limit value (nLowLimit).
• If the bUp input is simultaneously set to TRUE, the nOut_a output
signal is not changed.
bInAct
BOOL
Deactivate motor potentiometer function
• This input has the highest priority.
• When the motor potentiometer is deactivated, the nOut_a output signal follows
the function set with code
TRUE Motor potentiometer function is deactivated.
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