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Idiomas disponibles
MB Redundancy Balance
Art. No. 85496
OPERATING INSTRUCTIONS
4
3
14
14
24
24
13
13
23
23
INPUT
INPUT
7
1
2
OK
OK
23
MB Redundancy Balance
MB Redundancy Balance
5
Art.No. 85496
Art.No. 85496
13
8
INPUT
INPUT
9
+24V
+24V
1
1
2
2
GND
GND
0V
0V
2
1
12
90
90
90
2 4
1 3
70
1
MB Redundancy Balance
MICO
2
15
Power
Supply 1
1
(max. 20A)
-
Power
Supply 2
(max. 20A)
Jumper
MB Redundancy Balance
1
MICO
2
16
Power
Supply 1
(max. 40A)
1
-
Jumper
Power
Supply 2
(max. 40A)
(1) General
The device may be installed only by trained and qualified personnel. MB Redundancy
Balance is maintenance-free. Repairs can only be done by the manufacturer.
Balancing is achieved when input current is > 2 x 0,5 A and input voltage difference is
between 0 ... 300 mV 0% / -15% (2 x 10 A) or 0 ... 200 mV 0% / -15% (2 x 20 A).
Intelligent technology increases system efficiency in comparison to traditional technology
with diode. Current balancing technology makes possible to increase lifetime of power
supplies. If overheated balancing is disabled but unit continues to operate.
For high redundancy we recommend three-phase power supplies.
Only for use in pollution degree 2 environments.
MB
Redundancy
Balance
mountable active redundancy module from
Murrelektronik.
With
the
help
redundancy module, two power supply units
of the same type on the output side are
decoupled 100% from each other.
3
6
7
24
5
14
8
9
GND
GND
0V
0V
2
13
≥
45
45
≥
0
mm
45
≥
3
14
Connector:
GND
LOAD
Contact for bridge:
(max. 20A, Ta = 60°C)
OUT
24
2
Control
OUT
-
23
24
13
14
Protected
Protected
LOAD
LOAD
OUT
Control
23
OUT
Take care about the temperature
resistance of your input and
output cable.
20A, Ta=60°C
10 mm² / AWG 8 16 mm² / AWG 6
≥
≥
80°C
75°C
GND
LOAD
(max. 40A, Ta = 60°C)
In case of 40A supply
circuit the wiring of each
power supply should be
2
carried out with two cable
-
-
- -
to the belonging MB
Redundancy Balance.
Protected
Protected
LOAD
LOAD
(2) Technical specification, Art. No. 85496
Nominal voltage
Input voltage range
is
DIN-rail
Input current, I
Max. input current
of
the
Balancing (*)
Efficiency, typ.
Internal fuse for each channel
Protection against reverse polarity
Voltage drop, (Input to Output)
Output current max.
Derating
Power losses at full load:
Output 20 A: input from two 20 A supply
Output 40 A: input from one 40 A supply
Power losses at no load
Input transient protection
Output transient protection
Overload and overheating protection
Relative humidity
Ambient temperature
Storage temperature
Protection class, case, EN 60529
10
Dimensions W x H x D; Weight
(*) Input voltage difference must be < 300 mV 0% / -15%
(3) Features
[1] Input: +18 ... +30 VDC
Spring-loaded terminal
Solid
Stranded
Stranded with ferrule without plastic sleeve
Stranded with ferrule with plastic sleeve
Stripping length
Screwdriver blade
Wire insulation temperature rating 75°C
11
[2] GND, only for internal system electronics
Spring-loaded terminal
Solid
Stranded
Stranded with ferrule without plastic sleeve
Stranded with ferrule with plastic sleeve
Stripping length
50mm
(1,97 in.)
Screwdriver blade
Wire insulation temperature rating 75°C.
[3] Output
0
≥
Spring-loaded terminal
Solid
mm
Stranded
Stranded with ferrule without plastic sleeve
Stranded with ferrule with plastic sleeve
50mm
(1,97 in.)
Stripping length
Screwdriver blade
Wire insulation temperature rating 75°C
[4] Alarm contact: 30 VAC/DC 100mA
13/14 - Redundancy OK
23/24 - Balance OK
Spring-loaded terminal
Solid
Stranded
Stranded with ferrule without plastic sleeve:
Stranded with ferrule with plastic sleeve:
14
GND
Abisolierlänge / stripping length:
GND
Schraubendreherklinge / screwdriver blade:
Wire insulation temperature rating 75°C.
INPUT 2
[5] Alarm contact jumper
INPUT 1
[6] Status LED
Example of LED and Relay operation:
GND
13
GND
LED 1
LED 2
green
green
green
green
blinking
green
red
red
red
blinking
blinking
no color no color open
[7] Output jumper max. 40 A (total current)
[8] Module anchorage for bridging
[9] GND jumper max. 20 A (total current)
(4) Location [13]
MB Redundancy Balance is cooled by natural convection. It is important to maintain
clearance to other components as much as possible to ensure best performance and
long term stability. Top and bottom clearances should be 50 mm at minimum. The ambient
temperature should be measured on the underside of the unit. There will be an increase
of 25°C at the top. If natural convection is restricted, forced cooling should be used.
Mounting should comply with EN 60950-1 point 4.7 and 4.6.1. Protection class of the
case IP20 (EN 60529).
(5) Mounting [12]
The rail should be fixed solidly so that it cannot twist when mounting or removing the
unit. Mounting instructions [10], Removing instructions [11].
(6) Principle diagram [14]
(7) Example of Application [15] and [16]
(8) Accessories
- Jumper set [5], [7], [8], [9]:
packaging unit 10 pieces / Art. No. 9000-41034-0000001
packaging unit 1 piece / Art. No. 9000-41034-0000002
- Identification plates 10 pieces (20x8mm) / Art.No. 996067
We reserve the right to change this specification.
om.
Relay
Relay
Remark
13/14
23/24
closed
closed
Input voltages are > 20,4 VDC ± 2 %, < 32 VDC ± 2 % and
balancing
closed
open
Difference between input voltages is > 300 mV (2 x 10 A) or
> 200 mV (2 x 20 A) - (channel 2 has smaller value)
open
open
Input voltage < 20,4 VDC ± 2 %, > 32 VDC ± 2 % -
(channel 2)
open
open
Overheating or overcurrent
open
Input- and output voltages are < 8 VDC / short circuit in
output
V1.4
+24 VDC
+18 ... +30 VDC
2 x 20 A
2 x 26 A (-25°C ... +40°C)
Input current > 1 A
> 99,5 % / 2 x 20 A
30 A
Yes
50 ... 350 mVDC
40 A continuous
+60°C ... +70°C (2,5% / K)
≤ 1,5 ... 4,5 W with balancing
≤ 3,3 W
0,36 W
yes
yes
yes
5 ... 95% , no condensing
-25°C ... +60°C
-40°C ... +85°C
IP20
70 x 90 x 80 mm; 0,15 kg
max. 16 mm² / 6 AWG
max. 16 mm² / 6 AWG
max. 10 mm² / 8 AWG
max. 10 mm² / 8 AWG
12 - 13 mm
0,6 mm x 2,8 mm
max. 4 mm² / 12 AWG
max. 4 mm² / 12 AWG
max. 2,5 mm² / 14 AWG
max. 2,5 mm² / 14 AWG
8 - 9 mm
0,6 mm x 2,8 mm
max. 16 mm² / 6 AWG
max. 16 mm² / 6 AWG
max. 10 mm² / 8 AWG
max. 10 mm² / 8 AWG
12 - 13 mm
0,6 mm x 2,8 mm
max. 2,5 mm² / 14 AWG
max. 2,5 mm² / 14 AWG
max. 2,5 mm² / 14 AWG
max. 1,5 mm² / 16 AWG
5 - 6 mm
0,6 mm x 2,8 mm
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