GE Industrial Solutions CPS6000 - Manual (Page 145)

CPS6000 –48V Indoor/Outdoor Power Shelf
Issue 21 January 2008
145
• Excessive Output Load: Ringer output load exceeds 100VA.
Reduced Output: Ringer provides limited ringing output at 100VA by reducing Vac as
low as 50% of Vac set point.
Hiccup: If Ringer output is overloaded to Vac less than approximately 50% of the Vac
set point, the Ringer enters the hiccup mode.
Recovery is automatic when the external fault is removed.
In this mode, the Ringer shuts-down and restarts briefly at intervals of approximately 2
minutes to test for the presence of the external fault.
Restart will cause restart immediately.
• Internal Fault: Ringer output is disabled (shutdown) due to excessive temperature or
Ringer failure.
Recovery from Internal Fault
Excessive Temperature recovery is automatic when the temperature returns to a safe
value.
Ringer Failure recovery is manual, requiring one of the following:
° Removal of dc input power (remove and re-install Ringer in Ringer Chassis)
° Restart command from Controller (from front panel menu or remote)
° Ringer Failure is usually permanent and will reoccur upon completion or the
recovery attempt.