Emerson 160, U/300/S/12P, U /400/S/12P, U/300/S/6P, U /400/S/6P, 400KVA, 200 user manual To this

38 Chapter 4 Operator Control And Display Panel

Alarm message		Description
		UPS feeds output voltage back to the mains grill through bypass due to shortcircuit of static switch
Byp. feedback fault		on bypass side during mains failure. In this case, lack of protective bypass switch or improper
		connection of switch auxiliary contact will endanger the user safety. Special attention should be paid
		to this
INV drive circuit fault		Improper connection of inverter drive cable, or equipment type setting error
Bypass disconnect		Bypass switch closed
closed
Bypass disconnect open	Bypass switch open
Maint. disconnect closed		Maintenance bypass switch closed
Maint. disconnect open		Maintenance bypass switch open
Output disconnect closed	Output switch closed
Output disconnect open		Output switch open
Check UPS output	The UPS is off and has no output
		If the UPS auto-recovery after EOD function is disabled, after UPS shutdown due to battery
Output disabled		discharge to EOD (end-of-discharge) voltage, when the mains power is restored, the UPS will not
		restart automatically, and the LCD will display this alarm message
Normal mode	The UPS is in Normal mode
Battery mode		The UPS is in Battery mode
Source share mode	The UPS is in Source Share mode
Bypass mode		The UPS is in Bypass mode

HIPULSE U UPS Single Module And “1+N” (Expandable) 160/200/300/400kVA User Manual