Powerware SOLA 4000 manual Emergency Shut Down, Reset after Activating E.P.O

SOLA 4000 - Operation

5 Operating Instructions

5.5 Emergency Power Off

Operating Steps:

•To activate the Emergency Power Off, press simultaneously the two pushbuttons in the E.P.O. section of the operating panel (For hot-standby and parallel systems, the operation needs to be performed at one unit only).

Attention! This operation will remove all supply to the load.

Emergency Shut Down:

When E.P.O. is activated, all static switches SSI and SSB and the battery switch(es) IB (when connected with a trip circuit) are opened, the rectifier(s) and inverter(s) are switched off. The Data Monitor Panel / NCP will lose supply when the internal DC filter capacitors discharge.

Attention! Although the load is no longer supplied by the UPS, the input and output switches are still closed. Voltage is still present in the UPS unless the input circuit breaker(s) have a shunt trip circuit connected with the EPO circuit (see JUE 401066 "Installation and Initial Start-up", section 1.5).

	Reset after Activating E.P.O.
RESET:	•	To restart the UPS press the RESET push-button PL2 located
		on the CPU / NCP pcb inside the front door of the UPS. This
		releases the EPO circuit and the rectifier will restart.
		Note that if the input switch(es) were automatically tripped, it is
		sufficient to reclose the switch(es) without the need to press the
		reset pushbutton above.
	•	Press the pushbutton at the front of the CPHC16-R pcb at the
		right side of the UPS control electronic.
IB:	•	After the front panel is illuminated, close IB.
	•	Repeat for all units in the system.
	•	Press the "RESET" button for one second on the operating
		panel.
	•	Press the "START" button for one second on the operating
		panel and repeat for all units in the system (if multiple units are
		present).

Final UPS Operating Mode:

The UPS is returned to normal operation, and all power switches except IBY are closed.

JUE 401266 72