140
SPX advanced – description of parameters
SPX ADVANCED APPLICATION MANUAL
SVCH0203—October 2017 www.eaton.com
Code
ID
Description
Notes
P1.12.7.3
714
Under load protection, field weakening area load “UP fnom torque”
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.
Torque
fn
Freq. Out
Underload
area
5 Hz
P1.12.7.4
716
Underload time “UP time limit”
This time can be set between 2.0 and 600.0 s.
This is the maximum time allowed for an underload state to exist. An internal up/
down counter counts the accumulated underload time. If the underload counter value
goes above this limit the protection will cause a trip according to parameter Underload
Protection.
Underload time
Trip Area
Time
Underload
State
5.13.9 Under load protection
The Ground fault protection ensures that the sum of the
motor phase currents is zero. The overcurrent protection is
always working and protects the frequency converter from
earth faults with high currents.
Code
ID
Description
Notes
P1.12.8.1
703
Ground fault protection “ground fault”
0 = No response
1 = Warning
2 = Fault, stop mode after fault according to Stop Function
3 = Fault, stop mode after fault always by coasting
P1.12.8.2
1333
Ground fault current limit “GNDFaultCurLim”
Maximum level for Earth current in % of the unit nominal current.