Kruger Ecowatt K320 Series Operation Manual page 208

Ecowatt Drive K320 series
®
Function
Name
code
Overvoltage stall
P11.04
protection voltage
Current limit
P11.05
selection
Automatic current
P11.06
limit level
Frequency drop
P11.07 rate during
current limit
Description
DC bus voltage V
Overvoltage stall
threshold
Output
frequency
120–150% (standard bus voltage) (380V)
120–150% (standard bus voltage) (220V)
During accelerated running, as the load is
too large, the actual acceleration rate of
motor is lower than that of output
frequency, if no measures are taken, the
VFD may trip due to overcurrent during
acceleration.
0x00–0x11
Ones place: Current limit action selection
0: Invalid
1: Always valid
Tens place: Hardware current limit
overload alarm selection
0: Valid
1: Invalid
Current limit protection function detects
output current during
compares it with the current-limit level
defined by P11.06, if it exceeds the
current-limit level, the VFD will run at
stable frequency
running, or run in decreased frequency
during constant-speed
exceeds the
continuously, the VFD output frequency
will drop continuously until reaching
lower limit frequency. When the output
current is detected to be lower than the
current-limit level again, it will continue
accelerated running.
-199-
Time t
Time t
running, and
during accelerated
running; if
current-limit level
Function parameter list
Default Modify
136%
○
120%
01
◎
For P
type:
◎
120.0%
it
10.00
◎
Hz/s