Omron S8VK-R Series Safety page 9

Precautions for Correct Use
Mounting
• The long-term reliability of the S8VK-R can be increased by
installing it properly and sufficiently considering heat dissipation.
• Install the S8VK-R so that the air flow circulates around it, because
the S8VK-R is designed to radiate heat by means of natural air
circulation.
• Can be used in a contact mounting with the S8VK-G (not covered
by safety certification). Two S8VK-G units cannot be mounted
together in a contact mounting.
* 1
* 2 * 2
Power
Power
supply
supply
* 1
DIN Rail Mounting
To mount the Redundancy Unit to a DIN Rail, pull down the rail
stopper until you hear it click, hook portion (A) of the Redundancy Unit
onto the DIN Rail, and press the Redundancy Unit in direction (B),
then, push up the rail stopper to lock the Redundancy Unit in place.
(A)
To remove the Redundancy Unit, pull down portion (C) with a flat-
blade screwdriver and pull off the Redundancy Unit.
30 mm min.
Rail stopper
Input Power Supply Selection
• This product contains an internal fuse. If a power supply other than
the recommended power supplies is used, the fuse may blow,
depending on the state of the load. Connect only the
recommended power supplies to the Redundancy Unit.
Recommended Power Supplies
• S8VK Series
• S8VS Series
• S8JX Series
• If you are building a redundant system, never use in a state that
exceeds the rated current of the power supply. If one of the power
supplies goes down, there is a risk that the voltage on the load side
cannot be attained.
• Use the same model for the power supplies that are connected.
• Do not use in applications where load rush current or overload may
frequently occur. Slight risk of deterioration and damage due to
internal loss.
* 1. Convention of air
* 2. 20 mm min.
(B)
(C)
Combinations
Combinations with the S8VK-S
Model number For parallel operation
S8VK-S06024
S8VK-R10
S8VK-S12024
S8VK-S24024
Combinations with the S8VK-G
Model number For parallel operation
S8VK-G01505
S8VK-G01512
S8VK-G01524
S8VK-G03005
S8VK-G03012 S8VK-R10
S8VK-G03024
S8VK-G06012
S8VK-G06024
S8VK-G12024
S8VK-G24024
S8VK-R20
S8VK-G24048
S8VK-G48024
S8VK-G48048 S8VK-R20
Combinations with the S8VK-C
Model number For parallel operation
S8VK-C06024
S8VK-C12024
S8VK-C24024
S8VK-C48024
Combinations with the S8VK-T
Model number For parallel operation
S8VK-T12024 S8VK-R10
S8VK-T24024 S8VK-R20
S8VK-T48024
S8VK-T96024
Dielectric Strength Test
• The S8VK-R is designed to withstand a voltage test of 1 kV AC for
one minute between all input/output terminals and the ground
terminal and between signal output terminals and the ground
terminal, and 0.5 kV AC for one minute between all input/output
terminals and the signal output terminal.
Note: 1. The S8VK-R may possibly be damaged from the impulse
voltage if a testing device switch is used to abruptly apply or
shut off 1 kV AC, 0.5 kV AC. Increase the applied voltage
gradually using the voltage adjustment on the testing device.
2. When testing, always short-circuit all terminals to prevent
damage to the output terminal.
Signal output
• Photo switch output
30 VDC max. (LVLC), 50 mA max., residual voltage when ON: 2 V
max., leakage current when OFF: 0.1 mA max.
• Wire the signal output circuits correctly.
• The signal output circuits do not contain current-limiting circuits. Do
not allow the output current to exceed 50 mA.
• After you complete the wiring, confirm that operation is correct.
Status display LEDs
• The redundancy OK LED and signal output provide criteria for
checking the redundancy status from the electrical potential
difference between the two power supplies. It is not intended as a
conclusive means of determining the redundancy status. You must
periodically check the output voltage from the two power supplies.
S8VK-R
For backup operation
S8VK-R10
- S8VK-R20
For backup operation
S8VK-R10
- S8VK-R20
For backup operation
S8VK-R10
-
S8VK-R20
For backup operation
S8VK-R10
S8VK-R20
-
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