Connection Warnings; Operation - INFOSEC E4 LCD Pro TM 10k Manuel Utilisateur

1-4. Connection warnings


There is no standard backfeed protection inside, please isolate the UPS before working according to
this circuit. The isolation device must be able to carry the UPS input current.
•
This UPS should be connected with TT/TN earthing system.
•
The power supply for this unit must be three-phase rated in accordance with the equipment nameplate.
It also must be suitably grounded.
•
Use of this equipment in life support applications where failure of this equipment can reasonably be
expected to cause the failure of the life support equipment or to significantly affect its safety or
effectiveness is not recommended. Do not use this equipment in the presence of a flammable
anesthetic mixture with air, oxygen or nitrous oxide.
•
Connect your UPS power module's grounding terminal to a grounding electrode conductor.
•
The UPS is connected to a DC energy source (battery). The output terminals may be live when the UPS
is not connected to an AC supply.

1-5. Operation


Never disconnect the ground conductor cable as this would cancel the protective ground of the UPS
system and to all connected loads.

The UPS system features its own, internal current supply (batteries). The UPS output sockets may be
electrically live even if the UPS system is not connected to the mains.

In order to fully disconnect the UPS system, first press the "OFF" button and then disconnect the
mains.

Ensure that no liquid or other foreign objects can enter the UPS system.
INFOSEC UPS SYSTEM – 15, Rue du Moulin – 44880 Sautron – France – www.infosec-ups.com
32
Hot Line Tel : +33 (0)2 40 76 15 82 – fax : +33(0)2 40 94 29 51 – hotline@infosec.fr – 11 16 AA XX 201 07
Diagram 1
Before working on this circuit
- Isolate Uninterruptible Power System (UPS)
- Then check for Hazardous Voltage between all
terminals including the protective earth.
Risk of Voltage Backfeed