Tyco Electronics Galaxy SC Controller J85501F-1
5 - 8 Acceptance Testing Issue 13 February 2001
Note: Using this restart method rather than just toggling the
rectifier on/off switch tests the restart circuitry and resets the
HVSD timer so that the next rectifier can be tested immediately.
5. After the test rectifier restarts and walks in, adjust its output to the
plant float voltage and verify that all controller alarms have
retired.
Repeat with each plant rectifier. After all rectifiers have been tested,
adjust each to plant float and reenable Load Share on the rectifiers, if
equipped.
Installations
Serving an Active
Plant Load
(Parallel
Rectifiers)
It is undesirable to raise the plant bus if an active load is being served.
To test HVSD under this situation, ensure that sufficient battery reserve
is connected to the plant bus to support the plant load. Disable Load
Share on the rectifiers (if equipped) and adjust the restaffed voltages
until each is delivering at least 10% of its capacity. Turn off unneeded
rectifiers if necessary to accomplish this.
1. From the Front Display interface, use the path: Main → Config
→ Thresh and lower the HFV/Float level to 1 volt below the
current float voltage. Verify that Power Minor relay has activated
and the RECT and Minor LEDs are active.
2. Next use the path: Main → Config → Thresh and lower the HV/
Float level to 1 volt below the current float voltage. This should
activate HVSD, turning off all plant rectifiers and placing the plant
into a BD (Battery on Discharge) condition. The BD, RECT and
Major LEDs should all activate, along with the Power Major, BD
and RFA alarm relays. After 5 seconds, all rectifiers will restart
and, following walkin will begin raising the plant back to float.
When the voltage passes the new HV threshold again, HVSD will
occur again and all rectifiers will remain locked off.
3. Use the path: Main → Config → Thresh one final time to reset
the HFV and HV Float levels to their desired normal settings and
then the path: Main → RECT RST to restart all plant rectifiers,
retiring the BD and RECT alarms.
Repeat the test for any rectifiers that were turned off to achieve the 10%
minimum load capacity level of each rectifier. After all rectifiers have
been tested, adjust each to plant float and reenable Load Share on the
rectifiers, if equipped.