Eaton Electrical ASY0567, ASY0673, ASY0529, ASY0674 manual Non-Critical Alarm Messages

TROUBLESHOOTING

Table 23 contains descriptions of non-critical alarm messages. Non-critical alarms are not as urgent as critical alarms, but should be attended to as soon as convenient to avoid the problem becoming critical.

Table 23. Non-Critical Alarm Messages

Alarm Message	What It Means	What to Do
B Near Low Battery	The battery voltage has reached the Near	If the voltage increases, the alarm clears
	Low Battery set point.	automatically. If it drops further, it will cause a Low
		Battery alarm.
D Low Runtime	Batteries in the cabinet are nearly	Perform an orderly shutdown of all equipment and
	discharged.	wait for AC input power to return. When AC input
		power returns, the UPS begins recharging batteries
		and automatically restarts.
O Check Memory	The configuration as stored in the system	Look for the slot number (third line on display) of the
	memory may have been corrupted.	failed module. Contact your service representative.
M Check Battery	The batteries have failed an automatic	Contact your service representative.
	system test.

M Check Battery	A battery (pair of modules) has failed an
Open Cell	open cell test.

Look for the slot number (third line on display) of the failed modules. Verify that both battery modules are properly installed. If properly installed, replace both battery modules.

M Check Battery	The system batteries have degraded to the	Replace all battery modules.
Weak Battery	point where system runtime is less than
	the designed rating.
U Low Redundancy	The number of active power modules is	The unit is able to protect the equipment, but will
	too low to provide the programmed	not be fault tolerant. To regain the desired
	redundancy level to protect the current	redundancy, either add power modules or reduce
	load.	the load.

U Low Redundancy

Insufficient

Batteries

The UPS load exceeds 2800 watts per battery string. The system will protect the load during short power outages, but battery degradation or damage may result.

Reduce the load or install additional battery modules (two modules per string).

U Low Redundancy

Insufficient

Modules

The number of active power modules is too few to provide the programmed redundancy level while protecting the load. The UPS will protect the load, but will not be fault tolerant.

Reduce the load or install additional power modules.

112 Eaton 9170+ UPS (3–18 kVA) User's Guide S 164201393 Rev E www.eaton.com/powerquality