S&C Vista - Page 50

50 S&C Instruction Sheet 681-530
Viewing Event Logs
Table 7. Control Self-Test Report Description
Self-Test Item Description
Elapsed Time Counter The amount of time the control has been powered.
MLS Voltage- Interrupter1 - A Phase Magnetic Latching Solenoid (MLS) trip capacitor voltage
MLS Voltage- Interrupter2 - A Phase
MLS Voltage- Interrupter1 - B Phase
MLS Voltage- Interrupter2 - B Phase
MLS Voltage- Interrupter1 - C Phase
MLS Voltage- Interrupter2 - C Phase
ADC Interrupter1 – A Phase Status of the analog-to-digital converter
ADC Interrupter2 – A Phase
ADC Interrupter1 – B Phase
ADC Interrupter2 – B Phase
ADC Interrupter1 – C Phase
ADC Interrupter2 – C Phase
Power Supply 3.3 V
Status of the on-board power supplies
Power Supply 12 V
Flash memory Test
Status of key microprocessor systemsFRAM memory test
Stack Overflow
Status Legend:
OK – Operating within normal parameters
ERROR – Operating outside of normal parameters (The control requires immediate
servicing. Contact the local S&C Sales Ofce.)
TRIP – Will display under MLS voltage measurements only
Trip tests can only be performed with the Admin login to the overcurrent control. When
a Trip test is performed, the overcurrent control will send a signal to actuate the trip
solenoids in the switchgear, tripping the fault interrupters and opening the circuit.
NOTICE
Test tripping the overcurrent control will open the fault interrupter and may cause
unplanned loss of load.