User`s manual
23
Defender 3 Online Emergency Lighting Inverter User’s Manual
#018-7150-03 Rev NR
Normal Operation Bypass Operation
NOTE: Operation of the bypass switch will cause the inverter switch to static bypass and turn off the inverter if it
was running.
WARNING: The manual bypass switch should only be operated by authorized personnel.
5.5. INPUT AND OUTPUT
POWER REQUIREMENTS / CONNECTIONS
After unpacking and inspecting the Inverter System for shipping damage and reporting any such damage to
the carrier, it is vital that the input power be connected correctly at the required voltages. It is highly recom-
mended that a qualified electrician make all input and output power connections. It is vital that a true ground
be brought into the unit, not a neutral. The ground conductor should be the same size as the two input / pri-
mary voltage phase conductors. The input power connections to the UPS come from building supplied ser-
vices.
5.6. SYSTEM CURRENT RATINGS
All circuit breakers provided by the end user that are connected to the inputs and outputs, need to be of
the “High Inrush” type. This is to prevent the breakers from tripping during the startup of the unit and its
load. DSPM uses only the “High Inrush” type of breaker in its units. Refer to the Figure 11 when deter-
mining the size of your input and output breakers.
5.7. GROUNDING
The Ground Terminals centralize the system grounds for routing back to the building service entry panel
and the output load. The equipment grounding electrode terminals are all tied to a single point within the
cabinet along with all grounds from within the UPS cabinet. This single point functions as a true, single-point
ground. The output neutral point, equipment ground, transformer core, cabinet and system ground are all
tied together at one point.
DO NOT CONNECT THE UPS GROUND WIRE TO ANY FORM OF AN
ISOLATED
GROUND SYSTEM. SUCH A CONNECTION WOULD RESULT IN A SAFETY HAZARD, AND
UNDER GROUND FAULT CONDITIONS OR
LIGHTNING STRIKES, MAY CAUSE SEVERE
SYSTEM
DAMAGE.
6. INSTALLATION
6.1. INSTALLING BATTERIES
Please refer to the following when installing and maintaining batteries:
6.1.1.
Servicing of batteries should be performed or supervised by personnel
knowledgeable of
batteries and the required precautions. Keep
unauthorized personnel away from batteries.
When installing or replacing batteries, install or replace with the same number and type.
6.1.2.
Do not dispose of battery or batteries in a fire. The battery may explode.
6.1.3.
Do not open or mutilate the battery or batteries. Released electrolyte is harmful to the skin and
eyes and may be toxic.
6.1.4.
A battery can present a risk of electrical shock and high short
circuit current. The following
precautions should be observed when working on batteries:
6.1.4.1.
Remove watches, rings, or other metal objects.
6.1.4.2.
Use tools with insulated handles.
6.1.4.3.
Wear rubber gloves and boots.
6.1.4.4.
Do not lay tools or metal parts on top of batteries.
Figure 8