ETV 1591-H
CONTROL PANEL
Page 16
24.03.2015
5.2.2
Buffering after a +24 V Main Supply Failure
Buffer time
maximum 60 seconds
1)
Battery deep discharge
protection
typ12.3 V DC
2)
1)
The battery-buffered supply is always deactivated after 60 seconds of continuous buffering.
2)
The battery-buffered supply is deactivated at the deep discharge threshold to protect the battery from com-
pletely discharging.
5.2.3
Environmental Conditions
Battery storage tempera-
ture
-20 ... +60 °C
Battery operating tem-
perature
0 ... +50 °C
3)
3)
Temperatures above and below this range are not allowed for the battery used, as it can be damaged.
5.2.4
Delivery Condition / Minimum Charge
The charge condition of the installed NiMh battery is not defined in the delivery con-
dition.
The UPS must be charged for at least 5 hours before initial use to ensure the
proper function of the NiMh battery.
Procedure for rated operation:
Apply power to the ETV 1591-H (24 V)
Observe minimum charging time
No other activity or command required for the UPS