- General Electric Computer Accessories User Manual

GEH-6385 Reference and Troubleshooting, 2300 V Drives Chapter 2 Faults and Troubleshooting •
••
• 2-35
No. Name Type Description
145
Customer use NC
flt
Trip
The Customer use NC flt trip fault occurs when the customer normally closed
circuit is open. The state of the normally closed circuit is selected by
parameter User NC fault sel.
146 Customer use NC
alm
Alarm The Customer use NC alm alarm occurs when the customer normally closed
circuit is open. The state of the normally closed circuit is selected by
parameter User NC fault sel.
147
Customer use NO
flt
Trip
The Customer use NO flt trip fault occurs when the customer normally open
circuit is closed. The state of the normally open circuit is selected by
parameter User NO fault sel.
148
Customer use NO
alm
Alarm
The Customer use NO alm alarm occurs when the customer normally open
circuit is closed. The state of the normally open circuit is selected by
parameter User NO fault sel.
149 Sat curve data bad Trip The Sat curve data bad trip fault occurs when the flux saturation curve is not
monotonic.
Primary causes:
The saturation curve data entered by the operator is bad.
The saturation curve data calculated by autotune is bad.
Possible configuration faults:
One or more of the saturation curve parameters is bad. The saturation curve
parameters are Flux curve amps 1, Flux curve amps 2, Flux curve amps 3,
Flux curve amps 4, Flux curve amps 5, Flux curve voltage 1, Flux curve
voltage 2, Flux curve voltage 3, Flux curve voltage 4, and Flux curve voltage 5.
150 Rated flux data bad Trip
The Rated flux data bad trip fault occurs when the motor control calculation of
rated flux (variable 100% Flux) does not converge to a stable value.
151 Leakage curve bad Trip The Leakage curve bad trip fault occurs when the leakage flux curve is not
monotonic (i.e. Point 1 < point 2 < point 3 < point 4 < point 5).
Primary causes:
The calculated leakage curve has been derived from bad motor reactance
data.
The leakage curve data entered by the operator is bad.
The leakage curve data calculated by autotune is bad.
Possible configuration faults:
When the leakage curve is not entered specifically point-by-point (see below)
one is calculated from Starting react Xst, Magnetizing react Xm, Stator lkg
react X1, and Rotor lkg react X2. The relationship between these parameters
should be: (Rotor lkg react X2 || Magnetizing react Xm) + Stator lkg react X1
> Starting react Xst. If Motor reac parms bad fault is also present, this is the
likely cause.
When the leakage curve is not entered specifically point-by-point, one or more
of the leakage curve parameters is bad. The leakage curve parameters are
Lkg flux current 1, Lkg flux current 2, Lkg flux current 3, Lkg flux current 4, Lkg
flux current 5, Lkg flux voltage 1, Lkg flux voltage 2, Lkg flux voltage 3, Lkg flux
voltage 4, and Lkg flux voltage 5. If the leakage parameters are not set, the
leakage curve is determined as above, or as the results of autotune.
152 Invalid Time Base Trip
The Invalid Time Base trip fault occurs when the execution time base is
invalid. Parameter Exec time/Chop freq contains valid choices for the time
base.
Invalid Time Base requires a hard reset to clear.