User`s guide
136
CHAPTER 6 - DETAILED PARAMETER DESCRIPTION
3)
Reference (setpoint): local/remote mode. Reference
source: set P221 or P222 according to definiton above.
4)
Speed Limits: set P133 and P134 according to the
application.
5)
Indication- Display (P040): P040 canbe the displaydefault
parameter by setting P205 = 6. Analog Output (AO): it is
possible to indicate the process variable (feedback) or the
setpointof the PID regulator atthe analog output bysetting
P251 to 6 or 9, respectively.
Start-up
1)
Manual operation (DI3 open) - Display indication (P040):
check indication based on external measurement and on
the feedback signal (transducer) atAI1.
Indicationof the process variable at the analogoutput (AO),
if P251 = 6.
Set the frequency reference (F*) until the desired value of
the process variable is reached.
Only then switch to the automatic mode (inverter will set
automatically P525 = P040) if P536 = 0.
2)
Automatic operation: close DI3 and make the dynamic
settingof the PID regulator, i.e.,adjustthe proportional gain
(P520), integral gain (P521) and differential gain (P522).
NOTE!
The inverter setting must be correct in order to obtain a good
performance ofthe PIDregulator. Ensurethe followingsettings:
Torque boosts (P136 and P137) and slip compensation
(P138) in the V/F control (P202 = 0 ou 1).
Ensurethat the self-tuning hasbeen run,if in vector control
(P202 = 2).
Acceleration and deceleration ramps (P100 to P103).
Current limitation (P169).










