INVT Goodrive350-19 Series Operation Manual page 337

Goodrive350-19 Series VFD for Crane
Function
Name
code
Low-speed run
P92.02
protection time
Setting of
P92.03 low-speed run
frequency
Overload protection
P92.04 current detection
value
Overload detection
P92.05
time
Description
Low-speed run protection is applied to devices
to which long-time low speed running is not
applicable, preventing overheating caused by
late dissipation.
Output
frequency
(Hz)
P92.03
Running
command
Low speed
protection
output
When P92.02 is a non-zero value, low-speed
running protection is enabled, if the running
frequency of the VFD is equal to or less than
P92.03, and the last time is equal to or greater
than P92.02, the VFD reports a low-speed
running protection fault (LSP).
Setting range of P92.02: 0.000–50.000s
Setting range of P92.03: 0.00–20.00Hz
When P92.38=1 overload protection is enabled.
When P92.04>0, if the ramp frequency is equal
to or greater than (P90.16+2.00Hz) during
upward running, the VFD starts checking the
current (closed-loop
open-closed output current). If the current is
equal to or greater than P92.04, the VFD
reports the overload protection alarm after the
detection time reaches P92.05. This restriction
is not applicable to downward running.
-325-
Time (s)
P92.02
torque current
Function parameters
Default Modify
◎
0.000s
○
5.00Hz
◎
0.0%
or
○
0.5s