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Omron S8T-DCBU-01 Manual
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Omron S8T-DCBU-01 Manual

Block power supply dc backup block
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Block Power Supply DC Backup Block
Block Power Supply DC Backup Block
for Preventing 24 VDC Outages due to
Instantaneous Power Failures
■
Supplies 24 VDC for a fixed period of time even
during AC input outages to considerably improve
system reliability.
■
Block Power Supply Basic Block is connected by
the Bus Line Connector.
Simple system configuration.
■
Alarms are notified by indication on main unit and
by alarm signal output.
Ordering Information
DC Backup Block (See note 1.)
■
Output voltage
24 V
Note:
1. One S8T-BUS03 Connector is included as accessory.
2. The output current can be selected by a switch.
Bus Line Connector
■
Type
DC line bus
Note:
One package contains 10 S8T-BUS03 Connectors.
Battery Holder
■
Model
S82Y-TS01
Basic Block
■
Type
Screw terminal type
Connector terminal type
Note:
Use S8T-BUS01 in a pair with the Block Power Supply Basic Block.
Output current
3.7 A / 8 A (See note 2.)
Number of Connectors
1 Connector
10 Connectors (See note.)
Output voltage/output current
24 V / 2.5 A
Block Power Supply Basic Block
Model
S8T-DCBU-01
Model
S8T-BUS03
S8T-BUS13
Model
S8TS-06024
S8TS-06024F
S8T-DCBU-01
DC Backup Block

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Summary of Contents for Omron S8T-DCBU-01

  • Page 1 Block Power Supply DC Backup Block S8T-DCBU-01 Block Power Supply DC Backup Block for Preventing 24 VDC Outages due to Instantaneous Power Failures ■ Supplies 24 VDC for a fixed period of time even during AC input outages to considerably improve system reliability.
  • Page 2 1. Specified batteries are made by Matsushita Electric Industrial Co., Ltd. (Panasonic). 2. The rated voltage of the specified battery is 12 V. Use two specified batteries connected in series. 3. Be sure to connect the S8TS-06024 Basic Block. 4. Consult your OMRON representative when purchasing batteries.
  • Page 3 Relay (OPN MODE) (BACKUP: Red) (1)-(2): ON Limit the wire between the S8T-DCBU-01 and the battery to 1.5 m or less using wires of gages indicated at "Recommended Wire Backup operation is continued for about seven seconds even if the Size"...
  • Page 4 Connect the S8T-BUS03 Connector to the DC line only (AC line When having finished connecting equipment to the S8TS-06024 not connected) for use. Basic Block and S8T-DCBU-01, we recommend checking that backup is performed properly by the following procedure. The S8T-BUS03 Bus Line Connector is equipped with a selector to prevent erroneous connection of Blocks with different output 1.
  • Page 5 1.0 kVAC for 1 minute (between all S8T-DCBU-01 terminals and all S8TS-06024 outputs, and between GR terminals; detection current: 20 mA) Insulation resistance (See note 5.) 100MΩ min. (between all S8T-DCBU-01 terminals and all S8TS-06024 outputs, and between all S8TS-06024 AC inputs and GR terminals) at 500 VDC Vibration resistance (See note 5.

  • Page 6: Derating Curve

    4. The ambient temperature range of the battery is 0 to 40ºC, different from that for the S8T-DCBU-01. The ambient temperature of the battery is specified according to the battery's surface temperature. 5. As energy is consumed by S8T-DCBU-01, the total output capacity of the number of connected S8TS-06024 s cannot be calculated.

  • Page 7: Time Charts

    Note: Backup operation is not possible during the period (7 seconds (typical)) that the Note: Backup operation is continued for seven seconds after the power is restored from battery status output relay is LOW after the S8T-DCBU-01 is started up. a power failure.
  • Page 8 When the voltage on the Battery Connector terminal is about 15.5 V or less when the S8T-DCBU-01 is started up, the charging circuit is disconnected. This protects the battery and main unit when the battery is incorrectly connected (+ and −...

  • Page 9: Replacing Batteries

    (1) Turn the AC power line OFF, and back up the S8T-DCBU-01. (2) Measure the time that the battery status output relay turns to LOW ((4)-(5): ON) after the operation mode output relay is...
  • Page 10 S8T-DCBU-01 S8T-DCBU-01 Block Diagrams S8T-DCBU-01 BAT+ Bypass D Battery BAT− Discharge circuit Detection resistor Charging DC OUTPUT circuit Fuse −V 2.0 A Charge Overdis- Overcurrent circuit charge malfunction detection detection detection Operation Input Charging mode voltage control detection output circuit...
  • Page 11 S8T-DCBU-01 S8T-DCBU-01 Bus Line Connector S8T-BUS03 Sliding Sliding Battery Holder 222.25 S82Y-TS01 52.75 185.7 DIN Track ■ Note: All units are in millimeters unless otherwise indicated. Mounting Track (material: aluminum) PFP-100N 7.3 ± 0.15 PFP-50N 35 ± 27 ± 0.15...
  • Page 12 S8T-DCBU-01 S8T-DCBU-01 Component Names S8T-DCBU-01 DC Backup Block Backup Operation mode output Normal (OPN MODE) Battery status output (BAT LOW) Backup ON/OFF input (ON/OFF) 18 20 25 26 Backup: Operation Mode Output Relay (14) Battery Connector Terminal (+) COM: Operation Mode Output Relay...
  • Page 13 Continued use beyond the end of their [Installation, Environment] service life may cause fire. Do not use the S8T-DCBU-01 in locations where the battery is If you hear abnormal sounds, smell strange odors, see smoke, in a sealed structure or near components (e.g. contactors,...
  • Page 14 25% to 90%. heat release is not obstructed. • Do not use in locations where liquids, foreign matter, corrosive Connect the S8T-DCBU-01 to the right or left end of S8TS- gases, or flammable gases may enter the interior of products. 06024 Basic Blocks.

  • Page 15: Troubleshooting

    S8T-DCBU-01 S8T-DCBU-01 Troubleshooting This page lists the errors that may occur when the S8T-DCBU-01 is used, along with their probable causes and remedies. Check the relevant item. When Probable cause Description Remedies Installation S8T-DCBU-01 cannot be The Bus Line Connector is provided with a Set the selector on the Bus Line connected.
  • Page 16 Refer to Replacing Batteries on page 9 for details. A probable cause is that the S8T-DCBU- Storing the S8T-DCBU-01 with the battery 01 was stored for a long time with the connected may considerably shorten the battery connected. service life of the battery due to leakage current from equipment.