X-ray On, X-ray Disable
SHUTDOWN Logic level signal active high, disables generator
ANALOG_RTN Analog direct ground return path for FIL_ERROR etc.
FIL_DRV_A* Active low filament optocoupler drive signal (will be active high)
FIL_DRV_B* Active low filament optocoupler drive signal (will be active high)
FIL_SELECT Logic level selects large filament when high, small when low.
FAULT_RST Logic high clears all fault latches on Generator Driver & HVSR.
FIL_B_CNTL Analog filament supply regulator control signal
FIL_B_CNTL_REF Analog ground reference for above, resistive termination.
HV_GEN_ON* Logic level signal indicates presence of high voltage drive at tank
INTLK_CMPLT* Logic level signal goes low when 24V_INTERLOCK is on.
FAULT Active high logic level signal indicates a latched fault condition
OVER_KVP_FAULT Active high latched logic level signal indicates overvoltage
GND_INTEG* Active low logic level signal indicates ground connection to tank
FIL_DRV_OK* Active low logic level signal indicates that filament current is present.
OVERLD_FAULT Active high latched fault signal indicates overcurrent in HV transformer
SAT_FAULT Active high latched logic signal indicates excessive saturation voltage on IGBTs
SM_FIL_ACK* Low if small filament is selected.
INV_B_SEN Analog signal senses battery voltage on filament supply
INV_B_SEN_REF Analog ground reference for above, resistive termination
FIL_B_SEN Analog signal senses filament regulator supply voltage
FIL_B_SEN_REF Analog ground reference via resistor for above.
FIL_CUR Analog signal representing true rms filament current
FIL_CUR_REF Analog ground reference via resistor for above
FIL_VOLT Analog signal representing true rms filament voltage
FIL_VOLT_REF Analog ground reference via resistor for above.
FLUX_SEN Analog signal representing kVp from flux in HV transformer.
FLUX_SEN_REF Analog ground reference via resistor for above.
FIL_ERROR Analog signal for error control of filament for fine control of mA.
+15V, POS_15V DC +15V power.
-15V, NEG_15V DC -15V power.
8
Service
Periodic Maintenance
Contents
Schematics
Illustrated Parts
Installation
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