New Product
Redundancy Unit
S8VK-R
Contribute to build high reliable systems
Compact and Cost-effective solution
for Back-up applications
Easy setup for system reliability
requirement
• Redundancy operating LED for the status confirmation
• A signal output for failure detection of power supplies
• By adjusting the power supply voltage to light up Balance LED,
the lifetime of power supplies will be more than twice.
*1
• Wide range input
DC5-30V (S8VK-R10), DC10-60V (S8VK-R20)
• Wide operation temperature range: -40 to 70 °C
• Safety standards:
UL508/60950-1, CSA C22.2 No. 107.1/60950-1
EN50178, EN60950-1 Lloyd's standards
*2
• EMS: EN61000-6-2
EMI: EN61000-6-3
Refer to
Safety Precautions for All Power Supplies
and
Safety
!
Precautions
on page 9.
•
5 year
warranty
*3
*1.
The lifetime will depend on the connected power supply.
Refer to
Functions
on page 5.
*2.
Scheduled to obtain certification in September, 2013.
*3.
Five-
year warranty conditions: Rated input voltage, 80% load, Ambient operating temperature: 40°C, Standard mounting.
Model Number Structure
Model Number Legend
Note:
Not all combinations are possible. Refer to
List of Models
in
Ordering Information,
below.
S8VK-R
@@
1
1. Output current
10: 10 A
20: 20 A
Ordering Information
Note:
For details on normal stock models, contact your nearest OMRON representative.
Input voltage
DC5-30V
DC10-60V
10 A
20 A
Output current
Model number
S8VK-R10
S8VK-R20
1
S8VK-R
Specifications
Ratings, Characteristics, and Functions
Item
Voltage
Input
Current
Current
Continuous
Power Boost
Output Current
5 to 30 VDC
2x 0 to 5 A
1x 0 to 10 A
10 A
12 A (Refer to Engineering Data)
0.56 V typ. 2x5 A
0.63 V typ. 1x10 A
0.7 V max. (-40°C 1x10 A)
6.5 W 2x5 A
7.1 W 1x10 A
0.8 W 0 A
Indicator
Additional
functions
REDUNDANCY
OK
BALANCE
Contact
Indicator
10 A
10 to 60 VDC
2x 0 to 10 A
1x 0 to 20 A
20 A
24 A (Refer to Engineering Data)
0.67 V typ. 2x10 A
0.78 V typ. 1x20 A
0.9 V max. (-40°C 1x20 A)
15.8 W 2x10 A
18.0 W 1x20 A
0.8 W 0 A
20 A
Output
Voltage
drop
Power
losses
Input to Output
Lighting: Voltage difference between Vin1 and Vin2 is less than 2.4 V typ. (color: green)
Photo switch contact ON: Voltage difference between Vin1 and Vin2 is less than 2.4 V typ.
Contact Ratings: 30 VDC, 50 mA
Lighting: Voltage difference between Vin1 and Vin2 is less than 50 mV typ. (color: green)
-40 to 70°C (Refer to Engineering Data)
-40 to 85°C
0% to 95% (Storage humidity: 0% to 95%)
1.0 kVAC for 1 min. (between all inputs outputs and
terminal)
0.5 kVAC for 1 min. (between all inputs outputs and Signal contact)
10 to 55 Hz, 0.375-mm single amplitude for 2 h each in X, Y, and Z directions
10 to 150 Hz, 0.35-mm single amplitude (5 G max.) for 80 min each in X, Y, and Z directions
150 m/s
2
, 3 times each in
±
X,
±
Y, and
±
Z directions
Ambient operating temperature
Storage temperature
Ambient operating humidity
Dielectric strength
(detection current: 20 mA)
Vibration resistance
Shock resistance
Others
Conducted
Emission
Radiated
Emission
Conforms to EN61204-3 EN55011 Class B and based on FCC Class B
Conforms to EN61204-3 EN55011 Class B
Conforms to EN61000-6-2
UL Listed: UL508 (Listing)
UL UR: UL60950-1 (Recognition)
cUL: CSA C22.2 No.107.1
cUR: CSA C22.2 No.60950-1
EN: EN50178, EN60950-1
Lloyd's standards
*
IP20 by EN/IEC60529
462 g
EMI
EMS
Approved Standards
Degree of protection
Weight
183 g
*
Scheduled to obtain certification in September, 2013.
2
S8VK-R
Connections
Block Diagrams
+V
IN 1
-V
fuse:
R10 20A
R20 40A
+V
+V
Only R20.
OUTPUT
+V
IN 2
-V
Detection
circuit
fuse:
R10 20A
R20 40A
-V
-V
Frame landing
REDUNDANCY
OK
Construction and Nomenclature
Nomenclature
10 A Models
S8VK-R10
1
1
2
3
5
6
20 A Models
S8VK-R20
2
3
5
6
7
7
4
4
No.
Name
1
Input terminal 1
2
Input terminal 2
3
terminal
4
Output terminal
5
Status indicator (redundancy OK: Green)
6
Status indicator (voltage balance: Green)
7
Status contact (redundancy OK: photo switch)
Function
Connect the input 1 lines to these terminals.
Connect the input 2 lines to these terminals.
Connect the ground line to these terminals.
Connect the load lines to these terminals.
Lighting: Voltage difference between Vin1 and Vin2 is less than 2.4 V typ.
Lighting: Voltage difference between Vin1 and Vin2 is less than 50 mV typ.
Photo switch contact ON: Voltage difference between Vin1 and Vin2 is less than 2.4 V typ.
3
S8VK-R
Engineering Data
Derating Curve
Load ratio (%)
120
100
A
B
C
80
Power Boost Function
This function is possible when used in combination with S8VK-G (All
Models).
Power Boost is a function that can output the temporary repeated
boost current larger than the rated current.
However, it should meet the following four Boost current conditions.
1.
Time that the boost current flows: t1
2.
The maximum value of the boost current: lp
3.
The average output current: lave
4.
The time ratio of the boost current flow: Duty
Note:
Boost current conditions
60
40
20
0
−40
−25
−10
0 10 20 30 40 50 60 70 80
•
t1
≤
10 s
•
Ip
≤
Rated boost current
•
lave
≤
Rated current
Duty=
[A]
output current
Ip: Boost current
Rated current
lave: Average current
t1
× 100 [%]
≤
30%
t1 + t2
Ambient temperature (°C)
A: Standard mounting
B: Standard mounting, when contact mounted with S8VK-G
60°C and over: the derating is 2.5%/°C (when contact mounted
with S8VK-G)
C: Face-up mounting
50°C and over: the derating is 1.25%/°C
Mounting
(A)
Standard
(Vertical) mounting
(B) Contact Mounting
t1
t2
S8VK-R
•
Do not allow the boost current to continue for more than 10
seconds.
Also, do not let the duty cycle exceed the boost current conditions.
These conditions may damage the Power supply.
•
Ensure that the average current of one cycle of the boost current
does not exceed the rated output current.
This may damage the Power Supply.
•
Lessen the load of the boost load current by adjusting the ambient
temperature and the mounting direction.
(C) Face-up mounting
POWER
SUPPLY
(S8VK-G)
Combinations with the S8VK-G
Power supply
model
S8VK-G015@@
S8VK-G030@@
S8VK-G060@@
S8VK-G12024
S8VK-G24024
S8VK-G24048
S8VK-G48024
S8VK-G48048
S8VK-R20
S8VK-R20
S8VK-R10
S8VK-R10
Redundant unit model
Redundancy
Higher capasity
4
S8VK-R
Functions
Functions
Status
Redundancy
Voltage Balance
Output
Relay switch output: OFF
(Normally ON)
---
Display
Green
Green
Status Functions
Functions
Redundancy Status
(Refer to Chart 1.)
Operation
Redundancy OK signal and LED will turn ON and light up when the input voltage difference is 2.4 V typ or less.
The signal and LED will detect the failure of a power supply on one side, or connecting errors of power supply
voltage.
Balance LED will light up when the input voltage difference is 50 mV typ or less.
By adjusting the input voltage to light up LED, output current of each power supply will be balanced.
The lifetime as a power supply system will be more than twice comparing when there is only one power supply.
Applicable models: S8VK-G03005, S8VK-G06012, S8VK-G12024, S8VK-G240@@, S8VK-G480@@
By adjusting the input voltage to light up LED, the fluctuation of the output voltage will be less when one of the
power supply breaks.
Chart 1: Operation Timing
Vin+2.4
Vin
Vin+0.05
Vin-0.05
Vin-1.2
Vin1 (UNIT: V)
Vin+0.05
Vin-0.05
Vin-1.2
Vin2 (UNIT: V)
LED: Lighting
Photo
switch:
ON
REDUNDANCY OK
LED: Lighting
Vin+2.4
Vin+1.2
Vin+0.05
Vin-0.05
Vin-2.4
Vin
Voltage Balance Status
(Refer to Chart 1.)
Vin+1.2
Vin+0.05
Vin-0.05
Vin-2.4
BALANCE
Reference Value
Value
Reliability (MTBF)
S8VK-R10: 720,000 hrs.
S8VK-R20: 680,000 hrs.
MTBF stands for Mean Time Between Failures, which is calculated according to the probability of accidental device
failures, and indicates reliability of devices.
Therefore, it does not necessarily represent a life of the product.
10 yrs. Min.
The life expectancy indicates average operating hours under the ambient temperature of 40°C and a load rate of 50%.
Normally this is determined by the life expectancy of the built-in aluminum electrolytic capacitor.
Definition
Life expectancy
Definition
5
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