Toshiba VF010H05 - Manual (Page 87)

JKSSS+ Series - 81
JKSSS+ Series 2.3 - 4.2KV
Proble m CPU LCD Displa y LED
Aux
Re la y
Possible Ca use Solutions
Los s of 1 or m ore
phas es of power from
utility or generated pow er
Check power s ource
Blown power fus es Check for s hort circuits
Im proper program m ing
Check m otor nam eplate vers us
program m ed param eters
Pos s ible load dam age or
jam m ed load
Check m otor currents
Im proper s etting for
m otor load condition
Verify current lim it s etting
Dam aged load Check for load failure
Im proper program m ing Check s etpoint s ettings
Wrong pos ition of
dis connected breaker
Check dis connect or open breaker
Main contactor failed to
clos e
Check internal connections
Trans form er too s m all
Reduce current lim it s etting, s aturation
or s agging power s upply trans form er
Im proper program m ing Check s etpoint s ettings
U nloaded m otor Check load
Failed C PU or Main Firing
Board
Contact factory
Vibration Check internal w iring connections
Troubles hoot and repair generator
Contact utilities com pany
Main board failure
Three phas e power rem oved from
Main Board
Im proper program m ing Check program s etpoints
Any w ire going to ground
(I.e. s tator ground, m otor
ground, s oft s tart ground)
Check with m egger or Hi-pot m otor
leads and m otor
High vibration or loos e
connections
Check internal connections
Load s horted/ grounded/
faulted
Rem ove power and repair.
Faulty m ain circuit board Replace the m ain circuit board
Short in control circuit
Rem ove power, locate and rem ove
this s hort
Wrong control voltage
Apply the correct voltage to the control
circuit
UNDER CURRENT TRIP Trip
AUX1
AU X1
Any Ground
Fault Trip
GROUND FAULT
HI-SET OR LO-SET Trip
Under Voltage
Trip
UNDER VOLTAGE TRIP Trip AUX1
Overload OVERLOAD TRIP Trip AU X1
Phase Loss PHASE LOSS Trip AU X1
Stall prevention ACCEL TIME TRIP Trip AUX1
Generator Pow er
Problem or grid change
AUX1
Self-test Failure SELF-TEST FAILURE Trip
Line Frequency
Trip
OVER OR UNDER
FREQUENCY TRIP
Trip AUX1
Under Current
Trip
W arning: This is a s erious fault condition. Ens ure that the fault
condition is cleared on the load before attem pting to res tart the
m otor.
Control circuit
fuses b low after
control power is
applied.
None None None
Motor stopped
during run
Check for fault indication Trip AU X1