Lenze EVS9332xP - Manual (Page 191)

Commissioning
Current controller adjustment
6
6.7
l
6.7−3 EDSVS9332P EN 5.0−07/2013
0 1
9300std091 9300std092
Fig. 6.7−2 Current characteristic for non−optimum controller adjustment
0 Current rise of motor current too slow
Reset time T
n
(C0076) too long and/or gain V
p
(C0075) too small
Measured at time base 200 ms/DIV
1 High−frequency oscillations of motor current, motor noises may occur
Reset time T
n
(C0076) too short and/or gain V
p
(C0075) too large
Measured at time base 200 ms/DIV
8. Check the transient response over a longer period of time (e.g. with
time base 4000
ms/DIV). The motor current must reach the final
steady−state value within the shortest possible time.
0
1
9300std093
Fig. 6.7−3 Transient response of motor current over longer period of time
0 Optimum transient response
1 Final steady−state value is reached too slowly
Measured at time base 4000 ms/DIV
9. When the current controller adjustment is completed, reset the
temporary settings:
– Set the initial values again in C0006, C0022 and C0025. If necessary,
reconnect the encoder cable to X8.
– Connect the inputs MCTRL−M−ADD and MCTRL−N−SET with the initial
signals.