Lenze E82MV152_4B

Function library
Configuration of analog and digital setpoints and actual values
7−41
L
EDB82MV752 EN 5.2
7.6.4 Setpoints via function "motor potentiometer"
Description
Setpoint selection via two digital signals (UP/DOWN), which are controlled by means of, for instance,
simple pushbuttons.
The output frequency in changed via the acceleration and deceleration times set for the main setpoint
(C0012/C0013) or for the additional setpoint (C0220/C0221).
Codes for parameter setting
Code Possible settings IMPORTANT
No. Name Lenze Selection
C0265

Configuration motor
potentiometer
3
0 Start value = power off
 Start value: output frequency which is
approached with Tir (C0012) when the
mains is switched on and the motor
potentiometer is activated:
– "Power off" = act. value if mains is
off
– "C0010": Minimum output frequency
from C0010. The setpoint must have
exceeded C0010 before.
– "0" = output frequency 0 Hz
 C0265 = 3, 4, 5:
– QSP reduces the motor potentiometer
along the QSP ramp (C0105)
 7−41
1 Start value = C0010
2 Start value = 0
3 Start value = power off
QSP, if UP/DOWN = LOW
4 Start value = C0010
QSP, if UP/DOWN = LOW
5 Start value = 0
QSP, if UP/DOWN = LOW
Activation
1. Link UP and DOWN with external signal sources: C04110/7 UP and C0410/8 DOWN
) Note!
In addition to the free configuration under C0410 you can also use the fixed
assignment under C0007 to combine the function with digital inputs.
2. Assign the signal source "Motor potentiometer" to the required setpoint under C0412
(C0412/x = 3). ( 7−57)
Function
UP DOWN
Decelerate setpoint to 0 Hz along QSP ramp LOW LOW
Decelerate the setpoint along the main setpoint ramp (C0013) to
minimum output frequency (C0010)
(Setpoint must have been higher than value set under C0010)
LOW HIGH
Accelerate the setpoint along the main setpoint acceleration ramp
(C0012) to maximum output frequency (C0011)
HIGH LOW
Setpoint remains constant HIGH HIGH