9 current-limit controller, Current−limit controller, Function library – Lenze 8200 motec frequency inverter 0.25kW-7.5kW User Manual
Page 127: 9 current−limit controller, Process controller, current limitation controller
Function library
Process controller, current limitation controller
7−56
L
EDB82MV752 EN 5.2
7.9
Current−limit controller
Description
For controlling high moments of inertia the current limiting controller (I
max
controller) can be set.
Codes for parameter setting
Code
Possible settings
IMPORTANT
No.
Name
Lenze
Selection
C0077*
Gain I
max
controller
0.25
0.00
= P component not
active
{0.01}
16.00
^ 7−56
C0078*
Integral action time
I
max
controller
65
à
130
12
{1 ms}
9990
= I component not
active
à
Only 8200 vector 15 ... 90 kW
^ 7−56
Adjustment
The current limiting controller is factory−set so that the drive is stable.
Setting notes for power control
The current limiting controller must only be adapted in case of a power control with high moments
of inertia:
·
V/f characteristic control (C0014 = 2 or 3)
·
V
P
(C0077):
» 0.06
·
T
i
(C0078):
» 750 ms
)
Note!
C0077 and C0078 are the same for all parameter sets.