Grundfos RSI - Page 152

P3.9.3.2 Stall Current
The current can be set to 0.0…2*I
L
. For a stall stage
to occur, the current must have exceeded this limit.
See Stall characteristics settings. If parameter
P3.1.3.1 Current Limit is changed, this parameter is
automatically calculated to 90 % of the current limit.
In order to guarantee desired operation,
this limit must be set below the current
limit.
f
I
2
3
1
9130
Stall characteristics settings
Pos. Description
1 Stall area
2 Par. ID710
3 Par. ID712
P3.9.3.3 Stall Time Limit
This time can be set between 1.0 and 120.0 s.
This is the maximum time allowed for a stall stage.
The stall time is counted by an internal up/down
counter.
If the stall time counter value goes above this limit the
protection will cause a trip (see P3.9.3.1).
P3.9.4.2 Fieldweak. Load
The torque limit can be set between 10.0 - 150.0 % x
T
nMotor
.
This parameter gives the value for the minimum
torque allowed when the output frequency is above
the field weakening point. See Setting of minimum
load.
If you change parameter P3.1.1.4 (Motor Nom Currnt)
this parameter is automatically restored to the default
value.
f
5 Hz
5
1
2
3
4
9131
Setting of minimum load
Pos. Description
1 Torque
2 Par. ID714
3 Par. ID715
4 Underload area
5 Field weakening point
152
English (GB)