Omron S8T-DCBU-01 Manual page 16

Precautions
!WARNING
[Usage]
Do not use the battery where there is a possibility that it may
cause loss of life or injury, such as areas where there is medical
or other critical equipment.
!Caution
[Usage]
The battery is designed for a short hour backup in the application
where AC power is constantly sent. When the AC power is
turned OFF or there are several hours of power failure, follow the
instructions described in Battery Overdischarge on page 42. Bat-
tery service life may be shortened abnormally, or backup may be
disabled due to the inability to recharge.
[Battery Overdischarge]
To protect the battery against overdischarge, follow the instruc-
tions described in Battery Overdischarge on page 42. When the
battery has overdischarged, the battery service life may be short-
ened abnormally or backup operation may be disabled due to in-
ability to recharge.
[Installation and Environment]
Do not use the battery in a tight area or near an object that gener-
ates sparks, such as contactors, relays, or static charge. The bat-
tery may generate flammable gases when it is charged, so that
fire or explosion may be caused.
Tighten the terminal screws with torque 1.08 N·m and tighten the
connector screw and threaded flange with torque 0.20 N·m.
Loose screws may cause fire.
The tightening torque for terminal screws on the Battery Holders
is 0.74 N·m. Loose screws may result in fire.
Do not remove any connector cover unless using Bus line con-
nectors. Electric shock may be caused.
When connecting the Basic Block and DC Backup Block, lock the
slider and rail stopper. If they are locked insufficiently, linkage
may be disconnected due to vibration, causing electric shock.
Do not connect the load or capacitor between S8T-DCBU-01 and
battery. This may shorten the battery service life or disable the
backup operation due to malfunction of the overcurrent protection
function when the backup operation is changed over.
Do not use batteries other than the designated ones. If a battery
other than the designated ones is used, smoke and fire may be
caused.
Do not apply resin including a migrational plasticizer on the bat-
tery. Cracks will generate in the battery to cause leakage of elec-
trolyte.
When using metallic tools to install the battery to the Battery Hold-
er, use one insulated with vinyl tape or the like. A short circuit
may cause heat or spark, possibly causing a broken battery, fire
or explosion.
Connect the battery correctly. Wrong connection may cause
smoke or fire.
Install and transport the Battery Holder in the specified direction.
If the installation and transportation is not done as specified, bat-
tery fluid may leak, or the battery may not be protected from leak-
age, which may cause smoke or fire.
Do not operate the battery in an area exceeding 40°C. The bat-
tery may deteriorate quickly and cause fire.
(Operating temperature range of a battery: 0 to 40°C)
L-54
DC Backup Block for S8TS
Do not use the battery in an area where there are corrosive gas-
es. If it is left in this condition for a long time, the contact surface
of the switch or relay may corrode and cause unstable or loose
contact, disabling the backup operation due to the inability to re-
charge. If corrosive gas enters into the battery, fire may result in
the worst case.
Do not use new and old, different types, and different residual ca-
pacities of batteries mixed. Smoke and fire may be caused.
Do not use the DC Backup Block for the applications in which
connected load causes frequent inrush current.
See "Additional Precautions According to UL1604" for UL1604
conformance.
[Operation]
Follow the precautions of a battery when using. A battery could
be dangerous if it is used incorrectly.
Do not touch the product during power-on, and immediately after
power-off. Hot surfaces may cause heat injury.
Do not add or separate the DC Backup Block during power-on.
Electric shock may be caused.
To stop the unit in case of an emergency, turn the AC power OFF
and disconnect the battery. If only the AC power is turned OFF,
the device that is powered by the battery does not stop. This may
cause damage to the device or injury to persons.
Replace the battery immediately if it is fully drained. If the fully
drained battery is kept in use, fire may be caused.
If malodor, abnormal noise, smoke or liquid is issued from the
battery, turn off the switch of the Battery Holder. Continuation of
operation in this state may cause fire.
Keep away from electrolyte leaking from the battery. Lost sight or
burns may be caused. Flush electrolyte entering eyes or contact-
ing the skin with a large volume of clean water and get medical at-
tention.
Do not use the Battery Holder in locations subject to shocks or vi-
brations. Shocks or vibrations may cause battery performance to
deteriorate.
[Maintenance]
Do not disassemble the product or touch internal parts during
power-on. Electric shock may be caused.
When performing maintenance, turn the AC power OFF before
disconnecting the battery (Refer to Battery Overdischarge on
page 42). If only the AC power is turned OFF, the device that is
powered by the battery does not stop.
Be careful during installation of the battery or Battery Holder or re-
placement of the battery to avoid dropping the battery. A drop-
ping battery may cause injuries and burns caused by leaking
electrolyte.
Do not install or replace the battery in the presence of flammable
gases. Sparks generated when the battery is connected may
cause explosion or fire.
Do not disassemble or remodel the battery. Diluted sulfuric acid
may leak, possibly causing loss of sight or burns.
Do not short-circuit the battery using a metallic matter. Electric
shock, fire or burns may be caused.
Observe a self-imposed control, lows and regulations for disposal
or collection (recycle) of a battery. Explosion may be caused if a
battery is thrown in fire.
S8T-DCBU-01