Berker 75010015 Guide

Power supply 640mA RMD
uninterruptible
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© Gebr.Berker 2007 Version: 06.07.2007 Page: 1 / 9
(Subject to prior change) 75010015.doc Part 8
Product name:
Power supply 640mA uninterruptible
Design: REG (rail-mounted device)
Article no.: 7501 00 15
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System Components/Power supply/Power supply unit 640mA RMD uninterruptible
Functional description:
The uninterruptible KNX/EIB power supply 640 mA (USV) generates and monitors the KNX/EIB system
voltage. The power supply is designed to ensure the interruption-free supply of max. 64 bus devices (1
line) directly via the integrated choke and is therefore suitable for use especially in KNX/EIB security
systems. The device is connected to the system by means of the bus connecting terminal at the front of
the device (no data rail required). The bus output is overload- and short-circuit-protected in acc. with the
KONNEX specification and offers protection against overvoltage.
The KNX/EIB voltage can be buffered with a 12 V DC gelled lead-acid storage battery which is connected
to the device by means of a pre-assembled 4-wire connecting cable. When the mains voltage is on, the
storage battery is recharged via the uninterruptible power supply in a temperature-controlled mode. In
case of mains voltage failure, the KNX/EIB power supply and with it all connected bus devices are
supplied with power from the storage battery. To increase the buffering time during a mains failure, a
second storage battery can be connected to the system with a pre-assembled 2-wire connecting cable.
Storage batteries and cable sets must be ordered separately as accessories.
A potential-free change-over contact can be employed for fault signalling puposes in the event of mains
failures, battery trouble, overvoltage / overloading and short-circuits. Up to 5 different LEDs on the front of
the device inform the user about the different states of operation of the power supply.
Layout: Controls and indicators:
L1 N
30V DC
OK
230V OK Betrieb
µµ
ϑ
Überlast
AB
12 3 4 5 6
7 8 9 10
150 mA Code /
650 mA
12 V
Reset
C
D
E F GH
I
Dimensions:
Width: 144 mm (8 modules)
Height: 90 mm
Depth: 66 mm
A: mains connection (L, N, PE)
B: connection for potential-free change-over
contact (fault signalling contact)
C: bus connection
D: connecting terminals for storage battery
and external temperature sensor (cf. wiring
diagrams)
E: LED "230 V OK" (green):
lit up when mains voltage is OK.
F: LED " OK" (green):
lit up when storage battery is connected
and OK.
G: LED "Operation" (green):
lit up when bus voltage is on and OK.
Switches off in the event of bus voltage
failure.
H: LED "Overload" (red):
Lights up in the event of overload (e.g. too
many devices on the bus line) and of
short-circuit.
Eliminate short-circuit / reduce load.
Flashes when overvoltage at bus
connection.
Device switches off automatically
(reset), Locate cause and rectify
I: Reset button and LED (red):
LED lit up during reset state.

Power supply 640mA RMD
uninterruptible
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© Gebr.Berker 2007 Version: 06.07.2007 Page: 2 / 9
(Subject to prior change) 75010015.doc Part 8
Technical data "Power supply (USV)"
Type of protection: IP 20
Mark of approval: KNX / EIB
Operating temperature range: -5 °C ... +45 °C
Storage / transport temperature: -25 °C ... +70 °C (storage above +45 °C reduces the lifetime)
Type of fastening: snap-fastening on DIN rail 35 mm as per DIN EN 50 022
(no data rail required).
Mains supply
Voltage: 195 V to 255 V AC, 45 / 65 Hz
Power rating: max. 50 VA
Power loss: max. 10 W
Terminals: screw terminals: 0.2 … 2.5 mm² stranded wire
0.2 … 4.0 mm² single-wire
Bus output
Number: 1 line (integrated choke)
Voltage: 28 V … 31 V DC SELV
Rated current: max. 640 mA, withstanding continued short circuit
Sustained short-circuit current: max. 1.4 A
Connection: KNX/EIB bus connecting terminal
Max. line lengths: 350 m between power supply and 'last-in-line' bus device
700 m between any two bus devices
1000 m overall bus line
Mains buffering : with storage battery: depending on total battery capacity:
1 x battery 12 V / 12 Ah: ca. 5.5 hours *
2 x battery 12 V / 12 Ah: ca. 11 hours *
*: battery as new and full line loading.
no battery connected:
200 ms
Potential-free change-over contact
Switched nominal voltage: 230 V AC or
12 / 24 V AC/DC
Max. switched current: 6 A AC or
4 A DC
Min. switched current: 100 mA (at U < 30 V AC/DC)
Terminals: screw terminals: 0.2 … 2.5 mm² stranded wire
0.2 … 4.0 mm² single-wire
Battery and temperature sensor
connection
Type of storage battery: gelled lead-acid battery
Number: max. 2 of the same type in parallel
Rated voltage: 12 V DC
Battery capacity: preferably 12 Ah (also possible: 1 Ah, 7 Ah, 12 Ah, 17 Ah)
Rated charging current: 650 mA with total battery capacity > 5 Ah
(terminals "Code / 650 mA -" and "12 V +")
150 mA with total battery capacity < 5 Ah
(terminals "150 mA -" and "12 V +")
Temperature control: temperature-controlled charging voltage regulation by means of
external temperature sensor.
sensor connection for total battery capacity > 5 Ah
(terminals "150 mA -" and " ϑ")
sensor connection for total battery capacity < 5 Ah
(terminals "Code / 650 mA -" und " ϑ")
Terminals: screw terminals: 0.2 … 2.5 mm² stranded wire
0.2 … 4.0 mm² single-wire

Power supply 640mA RMD
uninterruptible
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(Subject to prior change) 75010015.doc Part 8
Overview of article numbers and accessories:
Accessory Berker Order-No.
Gelled lead-acid storage battery 12 V / 12 Ah 7590 00 68
Basic cable set 7590 00 66
Extension cable set 7590 00 67
Technical data "Gelled lead-acid storage battery 12 Ah"
Rated voltage: 12 V DC
Capacity: 12 Ah
Dimensions: 94 x 151 x 98 (W x H x D [mm])
Weight: 4.2 kg
Service life: 5 years
Operating temperature range: -20 °C ... +50 °C
Storage / transport temperature: -20 °C ... +50 °C
Technical data "Basic cable set"
Design: 4-wire connecting cable, pre-assembled, including temperature
sensor and fuse
Wire cross-section: 0.75 mm²
Length of cable: 2 m
Wire coding
Battery connection: red: "+ 12 V DC battery"
black: "- GND battery"
Ferrules for connection to the uninterruptible power supply
(USV). Faston receptacles and pole tabs for connection to
battery.
Connections to be made in acc. with the wiring diagram.
Sensor connection: yellow: "- GND temperature sensor"
white: "+ 12 V temperature sensor "
Ferrules for connection to the uninterruptible power supply
(USV).
Connections to be made in acc. with the wiring diagram.
Fuse
Design: User replaceable fuse in in-line fuse holder with bayonnet lock.
Type: 5 x 20 mm, time-delay type "T 6,3 H 250 V"
Interrupting capacity 1,500 A
Technical data "Extension cable set"
Design: 2-wire connecting cable, pre-assembled, including fuse
Wire cross-section: 0.75 mm²
Length of cable: 2 m
Wire coding
Battery connection: red: "+ 12 V DC battery"
black: "- GND battery "
Ferrules for connection to the uninterruptible power supply
(USV). Faston receptacles and pole tabs for connection to
battery.
Connections to be made in acc. with the wiring diagram.
Fuse
Design: User replaceable fuse in in-line fuse holder with bayonnet lock.
Type: 5 x 20 mm, time-delay type "T 6,3 H 250 V"
Interrupting capacity 1.500 A

Power supply 640mA RMD
uninterruptible
75010015
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Technical
Documentation 
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© Gebr.Berker 2007 Version: 06.07.2007 Page: 4 / 9
(Subject to prior change) 75010015.doc Part 8
Wiring diagram and assignment of terminals:
Connection with storage batteries with a capacity of > 5 Ah (recommended)
rd
bk
L
N
PE
L
N
PE
wh ye bk rd
basic cable set
(required)
KNX / EIB
ϑ
extension cable set
(optional)
additional
storage battery
storage battery
e.g. signal lamps
bk rd bk rd
30V DC
OK230V OK Betrieb
ϑ
Überlast
12345 6
7 8 9 10
150 mA Code / 650 mA
12 V
Reset
L1 N
µ µ
change-over contact:
no fault:contacts 4/5 closed, 5/6 open
fault: contacts 4/5 open, 5/6 closed

Power supply 640mA RMD
uninterruptible
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Technical
Documentation 
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© Gebr.Berker 2007 Version: 06.07.2007 Page: 5 / 9
(Subject to prior change) 75010015.doc Part 8
Wiring diagram and assignment of terminals (continued):
Connection with storage batteries with a capacity of < 5 Ah
storage battery
e.g. signal lamps
change-over contact:
no fault:contacts 4/5 closed, 5/6 open
fault: contacts 4/5 open, 5/6 closed
L
N
PE
L
N
PE
wh ye bk rd
KNX / EIB
ϑ
bk rd
30V DC
OK230V OK Betrieb
ϑ
Überlast
12345 6
7 8 9 10
150 mA Code /
650 mA
12 V
Reset
L1 N
µ µ
basic cable set
(required)

Power supply 640mA RMD
uninterruptible
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Technical
Documentation 
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© Gebr.Berker 2007 Version: 06.07.2007 Page: 6 / 9
(Subject to prior change) 75010015.doc Part 8
Hardware remarks
•Storage batteries and cable sets:
- The storage batteries used should preferably have a capacity of 12 Ah each. Storage batteries with
the following capacities can, however, also be used: 1 Ah, 7 Ah, 17 Ah. Observe the wiring diagrams!
- The total buffering time in case of mains failures depends on the total capacity of the storage batteries
connected and on the loading of the KNX/EIB line. For lines operating at full load, the following
buffering times can be expected when completely charged and as good as new 12 V DC / 12 Ah
storage batteries are used:
1 x battery ca. 5.5 hours
2 x batteries ca. 11 hours
- The gelled lead-acid may only be connected to the uninterruptible power supply with the pre-
assembled cable sets! The basic cable set is always necessary when a storage battery is connected
to the power supply. If a second storage battery is to be connected to the supply, the extension cable
set must be used.
- Not more than 2 storage batteries of the same type in parallel may be connected to the uninterruptible
power supply.
- The maximum charging time of the storage batteries (12 V / 12 Ah) connected to the power supplies is
1 x battery ca. 28 hours
2 x batteries ca. 56 hours
After a mains failure (batteries discharged), the storage batteries must be recharged. For this purpose,
the mains voltage must remain on for a sufficiently long time as the batteries can otherwise not ensure
the supply during the maximum buffering time.
- Because of service life limitations, the storage batteries used should be replaced about every four
years in order to ensure the supply during the maximum buffering time in the event of mains failures.
- The uninterruptible power supply performs an automatic battery test every 15 minutes. If a battery fault
is detected during the test, the potential change-over contact is switched to the fault position (contact
5/6 closed) and the LED " OK" switches off. The LED flashes in case of reverse polarity connection
of the storage battery.
After removal of the battery fault, the potential-free change-over contact switches back to normal
position and the storage battery LED is illuminated green. The fault message is not stored. A battery
test is also performed after a reset so that a test can be performed on demand by pressing the reset
button.
Note: In the worst case, it may take up to 15 minutes after occurrence of the fault until a battery
fault is detected and signalled. Likewise, it may take up to 15 minutes after removal of the
fault until the change-over contact goes back its normal position.
- The gelled lead-acid batteries should preferably be installed inside suitable universal distributions. The
storage batteries can thus also be protected against unauthorized access, if lockable doors are used.
- When no battery is connected to the power supply, the " OK" LED is permanently off.
•Temperature sensor:
- If a storage battery is connected to the uninterruptible power supply, it is absolutely necessary to
connect the temperature sensor as well. Only the temperature sensor integrated in the basic cable set
may be used.
- The temperature sensor should be in good thermal contact with the battery connected to the cable set.
The best solution is to fix the sensor with adhesive tape to the battery housing.
•Fitting:
- The uninterruptible power supply must be installed exclusively in distribution boxes or in control
cabinets on a 35 mm DIN rail. Sufficient ventilation is required to ensure that the admissible operating
temperature range is not exceeded.
- The uninterruptible power supply has no facility at the rear for making contact with a data rail. If data
rails are to be supplied with power, additional data rail connectors must be used.

Power supply 640mA RMD
uninterruptible
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Documentation 
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© Gebr.Berker 2007 Version: 06.07.2007 Page: 7 / 9
(Subject to prior change) 75010015.doc Part 8
Hardware remarks (continued)
•Commissioning:
- After correct connection of all lines, the mains voltage can be switched on. As a s short function test,
all LEDs light up briefly three times. Thereafter, the green LED "230 V OK" is permanently on. If a
storage battery is connected to the supply, the green LED " OK" lights up, too. The uninterruptible
power supply is now ready for operation.
If the storage battery is defective or if it has been connected with reverse polarity, the green LED "
OK" flashes and the change-over contact goes to the fault position (contact 5/6 closed). In this case,
the storage battery must be replaced altogether or properly reconnected with the correct polarity.
Note: In the worst case, it may take up to 15 minutes after commissioning until a battery fault is
detected and signalled. Likewise, it may take up to 15 minutes after removal of the fault
cause until the green LED " OK" is on again permanently.
- The uninterruptible power supply can also be put into operation without mains voltage in the buffering
mode on condition that the storage battery is fully charged. After correct connection of the storage
battery and the bus line, a battery test can be performed on demand by pressing the reset button. If no
fault has been detected in the course of the test, the power supply switches over to battery operation
and feeds the bus line.
The power supply should not be run for too long on battery power without the mains being connected
after commissioning to prevent discharging of the connected storage battery.
•Reset behaviour:
- A press on the reset button generates a reset pulse on the connected KNX/EIB line. In a reset, the bus
line is disconnected from the power supply so that the connected bus devices are set back to their
original state. To ensure a 'clean' reset procedure for all devices of the bus, the uninterruptible power
supply maintains the reset condition for 20 seconds independent of how long the reset button is being
pressed. During the reset, the red reset LED is on.
•Monitoring of the bus line:
- Overload / short circuit:
During an overload of the bus line, the red LED "Overload" is on. If the overload condition causes bus
currents of more than 1.2 A (e.g. during a short circuit), the output voltage is automatically reduced
and the green LED "Operation" switches off. A short-term overload will generally not cause any
problems in the system. If the bus line is, however, overloaded or short-circuited for longer than 10
seconds, the potential-free change-over contact additionally switches to the fault position. The fault
message is stored in the relay contact (cf. "Fault message" overleaf).
- Overvoltage:
If overvoltages occur on the bus line, the red LED "Overload" flashes. The potential-free change-over
contact switches to the fault position. The uninterruptible power supply performs an automatic bus
reset. During the reset, the red reset LED is on. The fault message is stored in the relay contact (cf. "
Fault message" overleaf).
- If overload and overvoltage occur at the same time, the overvoltage message has the higher priority,
i.e. the red LED "Overload" flashes and the bus is automatically reset. The fault message is stored in
the relay contact (cf. "Fault message" overleaf).

Power supply 640mA RMD
uninterruptible
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Technical
Documentation 
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© Gebr.Berker 2007 Version: 06.07.2007 Page: 8 / 9
(Subject to prior change) 75010015.doc Part 8
Hardware remarks (continued)
•Fault message:
- The uninterruptible power supply permanently monitors the connected bus line, the mains voltage and
the storage battery voltage. In the event of faults, the green LED "Operation" goes out. The cause of
the fault is indicated by means of the various LEDs on the front panel of the device and by the fault
signalling contact in accordance with the following table:
LED
"230 V OK"
LED
" OK" LED
"Operation"
LED
"Overload"
Fault signalling
contact Reset LED State / fault cause
green green green off normal off normal operation
green green green off normal red reset is active
green green green flashes red fault red overvoltage, automatic reset is active.
green green green flashes red fault off overvoltage fault stored, fault rectified
off green green off fault off mains failure, battery operation
green off green off fault off no battery, battery fault or battery empty
off off off off fault off mains failure and no battery, battery fault or
battery empty
green green green off* red fault off overload or short circuit
off green green off* red fault off overload without short circuit and mains
failure, battery operation
green off green off* red fault off overload without short circuit, no battery,
battery fault or battery empty
green green green off* flashes red fault off overvoltage
off green green off* flashes red fault off overvoltage and mains failure, battery
operation
green off green off* flashes red fault off overvoltage and no battery, battery fault or
battery empty
green green green red fault off overload, output voltage OK
off green green red fault off overload, output voltage OK, mains failure,
battery operation
green off green red fault off overload, output voltage OK, mains
operation, no battery
--- flashes
green --- --- fault off battery defective or battery connected with reverse polarity
*: green or off / ---: condition irrelevant.
In the event of overload or overvoltage at the bus output, the fault message is stored. In this case, the
potential-free change-over contact and the corresponding LED continue to remain in the fault state
even if the cause of the fault message no longer exists and if the bus is again supplied with power.
Although the system seems to work properly, the fault cause must be located and rectified by a
service technician as the fault may be a recurrent fault. When the fault has been rectified, the stored
alarm can be acknowledged and deleted by a single press on the reset button. The potential-free
contact switches back to normal position and the LED indicates the normal state of operation.
Pressing the reset button a second time will reset the bus. If the fault has not been removed
beforehand, a press on the reset button will result in a bus reset all right, but the fault remains stored
and the potential-free change-over contact and the LED continue to remain in the fault state.
- In the event of a mains failure, the bus line will be supplied from the connected storage battery, i.e the
failure has no effect on the bus voltage. When the mains supply fails, the potential-free change-over
contact switches to fault position and the LED "230 V OK" goes out. On return of the mains voltage,
the potential-free change-over contact goes back to normal position and the LED is lit up green. The
fault message is not stored.
- If the fault messages are to be indicated, it is possible to connect LEDs or signal lamps to the fault
signalling contact. A message can also be transmitted automatically to a service technician, if a
suitable phone dialler is connected to the fault signalling contact.

Power supply 640mA RMD
uninterruptible
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Technical
Documentation 
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(Subject to prior change) 75010015.doc Part 8
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