101
6 - PARAMETER DESCRIPTION
P36 Current Imbalance Trip Level PFN 05
LED Display LCD Display
Range Off, 5 – 40 % (Default 15%)
Description The Current Imbalance Trip Level parameter sets the imbalance that is allowed before the starter shuts down.
The current imbalance must exist for 10 seconds before a fault occurs.
Current is less than the FLA setting
The equation for the current imbalance is:
%
( )
%imbalance
Iave I
FLA
=
-
´
max
100
Iave = average current
Imax = greatest of: |L1-Iave| or |L2-Iave| or |L3-Iave|
FLA = value programmed into P1
Current is greater than the FLA setting
The equation for the current imbalance is:
%
( )
%imbalance
Iave ax
Iave
=
-
´
Im
100
Iave = average current
Imax = greatest of: |L1-Iave| or |L2-Iave| or |L3-Iave|
FLA = value programmed into P1
If the highest calculated current imbalance is greater than the current imbalance level for 10 seconds, the
starter shuts down the motor and declares a Fault 37 (Current Imbalance).
See Also Auto Reset Limit (P42 / PFN 11) parameter on page 104.
Controlled Fault Stop Enable (P43 / PFN 12) parameter on page 105.
% Imbalance
Current Imbl Lvl
PFN 05/P
36
Imbalance
Current
PFN: Cur Imbl Lvl
05 15 %