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D a ta s h e e t
BBU
Battery Backed-Up
Power Supply
The connectPower BBU combines with our
power supplies and a customer supplied
battery pack to form a scalable UPS system.
This enables you to put together a UPS system
uniquely tailored to your application.
This full featured unit has all the diagnostics
needed for applications where it is critical to
know the status of the power system.
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12 and 24Vdc versions available
Universal AC input
3A charge current on 12Vdc unit
2A charge current on 24Vdc unit
15A max load current
Form C relay output for fault and battery
status
• Inputs for Drain Cycle Activation, Drain Reset
and Enable
• LED’s for Battery Open, Battery Low,
Battery Reverse Polarity, AC Fault and
Charge State (Charging or Full Charge)
Please refer to www.connectpwr.com for more details on this product.
Canada
Weidmuller, S.A. de C.V.
United States
Weidmuller Ltd.
Ave. Ingenieros Civiles No. 204
Weidmuller Inc.
10 Spy Court
Conjunto Industrial Chachapa
821 Southlake Blvd.
Markham, Ontario L3R 5H6
Chachapa, Puebla, Pue.72990
Richmond, Virginia 23236
Telephone: (800) 268-4080
Mexico
Telephone: (800) 849-9343
Facsimile: (905) 475-2798
Telephone: (222) 286 62 47
Facsimile: (804) 379-2593
Email: [email protected]
Facsimile: (222) 286 62 42
Email: [email protected]
Website: www.weidmuller.ca
BBU - Battery Backed-Up Power Supply
BBU Operation (12/24V):
Diagnostic LEDs, control inputs and relay outputs
Specifications
“Full Charge” LED (Green):
On when battery voltage is 14.75 / 29.5V or greater.
“Bat Status” relay is energized.
Once fully charged the BBU drops the charge voltage to
13.65 / 27.3V (“float” voltage).
“Battery Low” LED (yellow):
On when battery voltage is <11 / 22Vdc.
“Bat Status” relay is de-energized.
If the battery voltage drops below 9.3 / 18.3V the load is switched off.
“Charging” LED (yellow):
On when BBU is charging the batteries.
Off when the “Full Charge” LED is on.
“Fault” LED (red):
On when AC fails.
On when external power supply voltage is <11 / 22V.
22V
On when batteries not connected.
On when battery voltage is <9.3 / 18.3V
Fault relay de-energizes for the above conditions.
“Battery Reverse” LED (red):
Batteries connected in reverse.
Fault relay de-energizes and fault LED turns on.
Internal fuse opens to prevent damage to BBU or batteries.
“Battery Open” LED (red):
No batteries connected - takes approx. 60 seconds to detect after turning on BBU.
“Fault” LED is on and Fault relay is de-energized.
“Drain” input
A temporary short between the “Drain” and “COM” terminals switches the load
to the batteries until the battery voltage reaches 11 / 22V. At this point the AC
power is returned to the power supply and the BBU starts recharging the batteries.
“Drain Reset”
A temporary short between the “Drain Reset” and “COM” terminals disables
the Drain cycle to the batteries.
“Enable” input
A connection between the “Enable” and “COM” terminals enables the BBU.
If terminals are open circuit (Disabled) the BBU functions as a battery charger
only. In the event of AC failure the batteries are not connected to the load
via the BBU. The BBU is factory preset as Enabled.
Catalog Number
Input Voltage
Input Current
AC Current Output for
ext PS
Input Protection
Battery Current Burden
minimum
typical
maximum
991628 0012
85Vac
115-230Vac, +/- 10%
265Vac
991628 0024
85Vac
115-230Vac, +/- 10%
265Vac
@ 115Vac
@ 230Vac
0.80A
0.50A
1.0A
0.60A
10A max.
10A max.
Vac (out): Maximum AC current to external Power Supply
fuse
inrush current
overvoltage
2A slow blow (internal)
40A maximum
275V
2A slow blow (internal)
40A maximum
275V
Thermistor Limited
Varistor Limited
AC off
120-200mA
120-200mA
Depends on the Battery Voltage
<0.5mS
Switching Time
Notes
Time to switch from external Power Supply to battery
<0.5mS
Battery Polarity Protection
Battery Over Voltage
Battery Under Voltage
Limited by 4.0A O/P fuse
16V
9.3V
Limited by 4.0A O/P fuse
32V
18.3V
Fuse is blown if battery polarity is reversed
Switches AC input voltage off
Disconnects load from battery
BBU Over Temperature
120°C +/-10%
120°C+/-10%
BBU can turn off if internal temperature is within this range
Charger Short Circuit
Load Short Circuit
Continuous
Continuous
Continuous
Continuous
Auto-restart
Auto-restart
Hold Time
115Vac Input
230Vac Input
46ms
226ms
24ms
190ms
Temperature Range
storage
operating
-20 …. +85 Degrees C
-20 …. +50 Degrees C
-20 …. +85 Degrees C
-20 …. +50 Degrees C
Humidity
storage
operating
20 to 90%
20 to 85% non-condensing
20 to 90%
20 to 85% non-condensing
Galvanic Isolation
input to output
input/output to rail
input to ground
output to ground
3KV
3KV
1.5KV
500V
3KV
3KV
1.5KV
500V
Wire Size
Power Connections
26-12 AWG (0.1-4mm2)
26-12 AWG (0.1-4mm )
Protection
Dimensions (mm)
2
Control inputs / relay outputs 28-14 AWG (0.5 - 1.5mm2)
28-14 AWG (0.5 - 1.5mm2)
length x width x depth
127.5 x 72.5 x 161.0
127.5 x 72.5 x 161.0
950g
950g
Weight
Wire gauge must be sized in
accordance with CEC/NEC
Add 22mm to height for connector and foot
Control inputs
Enable
dry contact/open collector
dry contact/open collector
Connect to COM (enables battery back-up mode).
When disabled the unit functions as a battery charger.
Status outputs
Drain
dry contact/open collector
dry contact/open collector
Momentary input (min. 50mS). Load switches to
batteries until battery voltage drops to battery
low level then switches back to normal operation.
Drain Reset
dry contact/open collector
dry contact/open collector
Momentary input (min. 50mS).
Disables the Drain cycle and switches
back to normal operation.
Battery Status
Form C Relay and LED
Form C Relay and LED
Relay and green LED on when battery is fully charged.
Fault
Form C Relay and LED
Form C Relay and LED
Relay is energized and red LED is off when system OK.
Charge Current
Full Charge
Battery Reverse
Battery Open
Battery Low
3.0A
Regulates to 13.65V
LED
LED
Yellow LED on below 11V
2.0A
Regulates to 27.3V
LED
LED
Yellow LED on below 22V
O/P fuse protected, red LED on when reversed
Voltage Nominal
12Vdc
24Vdc
Current
15A max
15A max
Surge Current from no load
20A max for 300mS
30A max for 100mS
20A max for 300mS
30A max for 100mS
CSA, UL Listed, and CE
CSA, UL Listed, and CE
3AH
2AH
Battery Charger
Output
Approvals/Certifications
Battery Capacity
Miscellaneous
Minimum
Maximum
not restricted
not restricted
Mounting
TS35 DIN rail
TS35 DIN rail
Optional Mounting
direct panel mount
direct panel mount
Connections
plug and socket
plug and socket
Red LED on when open
approximately 90% of battery voltage
Current is not limited by BBU. An external current limiting
device must be used to protect battery from short circuit
and exceeding the max. allowable load current.
Timing changes depending on load before surge.
Batteries must be sized based
on load requirements and length
of down time needed.
Factory installed mounting foot.
User installed mounting brackets (DIN rail foot is
removed and replaced with brackets). Chassis
Mounting kit catalog number: 7920560000
BBU - Battery Backed-Up Power Supply
POWER SUPPLY**
L
+
G
DC OUT
AC IN
-
N
BBU
ENABLE
PS+
PSLOAD+
LOAD(S)
LOADPS AC
OUT
BATT+
BATT-
L
G
BBU AC
IN
N
FUSE*
+
BATTERY*
*Customer Supplied
**Ordered Seperately
Specifications subject to change without notice. 99990269 - 11/02 Printed in Canada
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