Datasheet

G9SE
9
Safety Precautions
Be sure to read the precautions for All Safety Relay in the website at:http://www.ia.omron.com/.
Indication and Meaning for Safe Use
Alert Statements
(1) Use G9SE within an enclosure with IP54 protection or higher of
IEC/EN60529.
(2) When ready for wiring, the power source should be disconnected
the terminals in order to prevent an electrical shock.
(3) Do not apply any excessive voltage or current to the input or output
circuit the G9SE. Doing so may result in damage to the G9SE or
cause a fire.
(4) Incorrect wiring may lead to loss of safety function. Wire
conductors correctly and verify the operation of G9SE before
commissioning the system in which G9SE is incorporated.
(5) Do not apply DC voltages exceeding the rated voltages, or AC
voltages to G9SE.
(6) Use DC supply satisfying requirements below to prevent electric
shock.
- DC power supply with double or reinforced insulation, for
example, according to IED/EN60950 or EN50178 or a transformer
according to IEC/EN61558.
- DC supply satisfies the requirement for class 2 circuits or isolated
source with 4A current limit stated in UL 508.
(7) The lifetime of G9SE depends on the conditions of switching of its
outputs. Be sure to conduct its test operation under actual
operating conditions in advance and use it within appropriate
switching cycles. Apply protection circuitry against back
electromotive force in case connecting inductive loads to safety
outputs.
(8) Do not operate the G9SE with flammable or explosive gas.
An arc with operation and the heat of relay will cause a fire or an
explosion.
(9) Do not drop G9SE to the ground or, dismantle, repair, modify
G9SE, otherwise an electric shock may occur or the G9SE may
malfunction. It may lead to loss of its safety functions.
(10) Use protective device (Fuse etc.) for short-circuit protection and
ground fault protection, otherwise a fire may occur or the G9SE
may malfunction.
(11) Auxiliary monitoring outputs are NOT safety outputs. Do not use
auxiliary outputs as any safety output.
Such incorrect use causes loss of safety function of G9SE and
its relevant system.
(12) After installation of G9SE, qualified personnel should confirm
operations and maintenance.
The qualified personnel should be qualified and authorized to
secure the safety on each phases of design, installation, running,
maintenance and disposal of system.
(13) A person in charge, who is familiar to the machine in which G9SE
is to be installed, should conduct and verify the installation.
(14) Perform daily and 6-month inspections for the G9SE. Otherwise,
the system may fail to work properly,resulting in serious injury.
Turn OFF the signal to Safety input and make sure G9SE
operates without fault by checking the state of the LED indicator
in inspection.
(15) Conformity to requirements of performance level is determined
as an entire system. It is recommended to consult a certification
body regarding assessment of conformity to the required safety
level.
(16) OMRON shall not be responsible for conformity with any safety
standards regarding to customer's entire system.
(17) Dispose of the Units according to local ordinances as they apply.
WARNING
Indicates a potentially hazardous
situation which, if not avoided, will
result in minor or moderate injury, or
may result in serious injury or death.
Additionally there may be significant
property damage.
Indicates prohibited actions
Indicates mandatory actions
WARNING
Serious injury may possibly occur due to breakdown of
safety outputs.
Do not connect loads beyond the rated value tothe
safety outputs.
Serious injury may possibly occur due to loss of required
safety functions.
Wire G9SE properly so that supply voltages or voltages
for loads do NOT touch the safety inputs accidentally or
unintentionally.
Serious injury may possibly occur due to loss of safety
functions.
Use appropriate devices referring to the information
shown below.
Controlling Devices Requirements
Emergency stop switch
Use approved devices with Direct Opening
Mechanism complying with IEC/EN 60947-5-1
Door interlocking switch
Limit switch
Use approved devices with Direct Opening
Mechanism complying with IEC/EN 60947-5-1 and
capable of switching micro loads of 24VDC, 5mA.
Safety Sensor
Use approved devices complying with the relevant
product standards, regulations and rules in the
country where it is used.
Relay with forcibly
guided contacts
Use approved devices with forcibly guided
contacts complying with EN 50205.
For feedback purpose use devices with contacts
capable of switching micro loads of 24VDC, 5mA.
Contactor
Use contactors with forcibly guided mechanism to
input the signal to Feedback/Reset input of G9SE
through the NC contact of the contactor.
For feedback purpose use devices with contacts
capable of switching micro loads of 24VDC, 5mA.
Failure to open contacts of a contactor cannot be
detected by monitoring its auxiliary NC contact
without forcibly guided mechanism.
Other devices
Evaluate whether devices used are appropriate to
satisfy the requirements of safety category level.
Precautions for Safe Use