Liebert PowerSure PS250-50S - Manual (Page 4)

4
5. After charging, shutdown both the UPS and load equipment and unplug
them from the AC supply socket. Connect the supplied CEE-22 output cable
(B) between the load equipment input socket (D) and one of the UPS AC
output sockets (E). Connect all load equipment to UPS in this way.
6. When all equipment is plugged in, plug UPS into the AC supply socket and
turn it ON. The UPS is ready for normal operation.
OPERATING INSTRUCTIONS
1. Check that all power connections to and from the unit are secure and fitted
with
the correct cables and switch the AC input supply ON.
2. Press the ON/OFF Button (1) to ON.
3. Switch your equipment ON at their respective power switch(es).
4. Check the condition of the UPS front panel LED's. The 250 VA AC LED (4)
should be lit. For the 400/600 VA models, the AC LED (4) should be lit, and
the Check and Battery LED's (3 & 2) should be unlit.
5. Check the operation of your equipment. It should display normal operational
conditions.
6. If any function provides an abnormal condition, refer to the troubleshooting
guide later in this manual. If a problem persists, consult your dealer or call
Tech Support at the number listed at the end of this manual.
STARTING FROM BATTERY (400/600 VA only): Turn OFF UPS. Press and
hold BATTERY TEST button (5) for 4 seconds. Switch ON UPS and release
BATTERY TEST button (5). UPS will run in backup mode with the Battery LED
(2) lit. To stop, switch OFF at front panel.
Battery Back-up Time
250 VA Models
400 VA Model
s
600 VA Model
s
Back-up Time (minutes)