Lenze 8200 motec frequency inverter 0.25kW-7.5kW - Manual (Page 187)

Application examples
Pressure control
13−2
L
EDB82MV752 EN 5.2
Application−specific configuration
·
Execute motor parameter identification. ( ^ 7−48)
Code Settings Important
No. Name Value Meaning
C0014
↵ Operating mode
3 V/f characteristic control V ~ f square−law characteristic with constant V
min
boost
C0410 Digital signal source
8 DOWN 1 E1 Inputs of the UP" and DOWN" pushbuttons
7 UP 2 E2
1 JOG1/3 3 E3 Fixed speed for night−time pressure reduction Applying the fixed speed simultaneously
deactivates the process controller.
19 PCTRL1−OFF 3 E3 Deactivation of process controller
17 H/Re 4 E4 Changeover − PLC/on−site set−up
C0412 Analog signal source
1 Setpoint 1
(NSET1-N1)
4 X3/2I Pressure setpoint (manual)
2 Setpoint 2
(NSET1-N2)
3 MPOT1−OUT motor potentiometer function Pressure setpoint (remote)
5 Actual process
controller value
(PCTRL1−ACT)
1 X3/1U Actual pressure value
C0145 Source − process
controller setpoint
0 Overall setpoint (PCTRL1−SET3) Main setpoint + additional setpoint
C0070 Process controller
gain
à Adapt to process, if required.
à Further information: ^ 7−50 ff.
C0071 Process controller
reset time
à
C0072 Differential
component of
process controller
à
C0074 Process controller
influence
100.0 0.0 {0.1 %} 100.0
C0238
↵ Frequency precontrol
−0− −0− No feedforward control (only process controller) Process controller has full influence.
C0419 Free configuration of
analog outputs
Analog signal source
1 X3/62 (AOUT1−IN) 8 Actual process controller value
C0037 JOG1 17 Fixed reduction to approx. 1/3 of the rated
motor speed.
C0239o Lower frequency
limitation
10.00 Setpoint−independent minimum speed.
C0182* Integration time
S ramps
0.50 s Jerk−free starting action
C0625* Blocking frequency 1 30.00 Hz
C0628* Skipping bandwidth −
skip frequency
10.00 % with regard to C0625
C0119
↵ Configuration of PTC
input/earth−fault
detection
4 PTC input is active, TRIP is effected
C0415 Free configuration of
digital outputs
1 Relay output K1 1
or
digital switching
output K1
2
16 Ready for operation 1: applies to motec version 151
2: applies to motec version 152, 153
2 Digital output X3/A1 25 TRIP error message