S8T-BUS03 Omron, S8T-BUS03 Datasheet - Page 5

• Manufacturer Part Number: S8T-BUS03
• Description: CONNECTOR DC LINE BUS
• Manufacturer: Omron
• Series: S8TSr

Specifications of S8T-BUS03

• Accessory Type: Bus Line Connectors
• For Use With/related Products: S8TS Power Supplies
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: S8TBUS03

LY1-D
(24 VDC)
20°C
40°C
20°C
40°C
temperature
temperature
Model
Ambient
Ambient
3. If the battery connection terminal voltage is 15.5 V (typical) or lower, the
4. Do not use the S8T-DCBU-01 in locations subject to corrosive gases, such
5. The ambient operating temperature and humidity for the LY1-D (24 VDC)
6. A voltage of approximately 15 V is applied to switch SW in Figure 2 when
7. The standby current will flow and discharging will continue if only the
8. If the user has forgotten to turn OFF the Battery Holder switch in Figure 1
• A period of 24 to 48 hours is required to fully charge the battery. If backup
• The battery service life will be shortened with each repetition of charging
operation is performed before the battery is fully charged, the reduced
charge will result in shortened battery service life.
and discharging.
incorrect battery connection protection function will be activated, and
charging will not be performed. When the battery is nearing the end of its
service life (i.e., when the battery capacity is half its initial capacity),
recharging and backup may not be possible if only the battery has been
left turned AC power OFF for about two days (at an ambient temperature
of 25°C). Refer to Incorrect Battery Connection Protection on page 8.
as silicon gas, sulfuric gas, organic gas, or chlorine gas. If relays (X in
Figure 1 and Figure 2) or switches (Battery Holder and switch SW in
Figure 2) are used or left in atmospheres with corrosive gas, corroded
contact surfaces may cause contact instability or contact failure and
render battery backup or backup operation impossible.
are given in the following table. The LY1-D (24 VDC) has a built-in diode
to absorb inverted voltage that is generated from the operating coil. The
operating coil therefore has polarity. Take this into account when
performing wiring. Refer to individual datasheets for details.
it is open and a current of approx. 2 mA when it is shorted. Take this into
account when selecting a switch.
battery is wired and left without wiring the AC power.
or switch SW in Figure 2, backup operation will continue until the battery
connection terminal voltage reaches 18.5 V (typical), and then the battery
will be disconnected by the relay (X). If the battery is left in this condition
for a period exceeding the times given in the following table, self-discharge
will cause the battery to continue overdischarging, which may result in the
inability to recharge and perform backup.
Output current of 4 A max.: −25 to 55°C
Output current of 4 A min.: −25 to 40°C
Ambient operating temperature
0.11 A
2.2 A
0.11 A
2.2 A
0.17 A
4.8 A
0.17 A
4.8 A
current
current
Load
Load
1.0
2.0
0.5
1.0
S82Y-BAT01
Start of battery life End of battery life
1.0
3.0
0.5
3.0
S82Y-BAT02
Start of battery life End of battery life
Estimated months battery can be left
Estimated months battery can be left
until incapable of recharging
until incapable of recharging
0.5
1.0
0.25
0.5
0.5
1.5
0.25
1.5
5% to 85%
operating
humidity
Ambient
Figure 1 Overdischarge Protection Circuit When the User Forgets to Turn
The following will occur is you forget to turn OFF the Battery Holder
switch.
Figure 2 Overdischarge Protection Circuit Using an External Signal
3. Battery Discharge Due to Self-discharging
S8TS
-06024@
Ambient temperature Months between charging
20°C or less
20 to 30°C
30 to 40°C
S8TS-06024@
a. Backup operation will start after the AC power has been turned
b. When the battery connection terminal voltage reaches 18.5 V
a. The backup ON/OFF input is opened (making backup
b. If the AC power has been tuned OFF, 24 VDC will turn OFF, the
Even if the S8T-DCBU-01 Battery is disconnected, it will
discharge naturally. To prevent overdischarge, charge the Battery
completely before storing it for an extended period of time or
shipping it, and then charge it at the interval given below.
OFF.
(typical), backup operation will stop, the relay contacts will
open, and the battery will be disconnected from the DC Backup
Block.
impossible) by the external signal (e.g., a switch).
contacts will open, and the DC Backup Block will be
disconnected.
L N
OFF the Battery Holder Switch
−V
L N
−V
−
−V
LOAD
−
X
−V
+
+V
9
6
3
LOAD
S8T-DCBU-01
X
+
S82Y-TS01 (Battery Holder)
+V
Specified relay (X): OMRON LY1-D (24 VDC)
(See note 5 on page 5.)
S8T-DCBU-01
X
(Backup ON/OFF input)
Specified relay (X): OMRON LY1-D (24 VDC)
(See note 5 on page 5.)
S8T-DCBU-01
SW (See note 6.)
S82Y-TS01 (Battery Holder)
X
1
3
5
7
LY1-D (24 VDC)
X
2
4
6
8
5