Power Electronics SD300 Series - Page 202

SD300
POWER ELECTRONICS
200
DESCRIPTION OF PROGRAMMING PARAMETERS
Screen
Description
Default
value
Range
Function
Set on
RUN
Pr.27
Underload
fault mode
None
0 to 2
Set the underload fault trip protection.
OPT.
DESCR.
FUNCTION
0
None
Protection is disabled.
1
Free-
Run
Output is blocked in an
underload fault trip
situation.
2
Dec
The motor decelerates and
stops.
YES
Pr.28
Underload
fault delay
30.0
0.0 to
600.0s
Set the delay time before triggering the
underload fault.
YES
Pr.29
Underload
minimum level
+30%
10 to
30%
• Heavy Duty: Pr.29 is not supported.
At Pr.30, underload level is decided
based on the motor rated current.
• Normal Duty: At Pr.29 underload rate
is decided based on twice the
operation frequency of the motor rated
slip speed (AP.12). At Pr.30, the
underload rate is determined based on
the frequency set at Cn.18. Upper and
lower limits are based on the drive
rated current
YES
Pr.30
Underload
maximum
level
+30%
30 to
100%
YES
Pr.31
Action in case
no motor is
detected
Nada
None
Free-
Run
The drive will carry out one of the following
actions whenever a fault is present due to
the fact that no motor has been connected
to the drives output terminal:
OPT.
DESCR.
FUNCTION
0
None
Protection is disabled.
1
Free-
Run
The drive’s output is cut,
having as a consequence
the motor free run.
Caution: Users should ensure that
disabling this protection does not
compromise the operation of the
installation and/or equipment
YES