Puls SLR02 Data Sheet
When failure is not an option:
Single Redundancy Module
SLR02
• Easy set-up of N+1 redundancies
on the DIN-Rail
• Decoupling diodes
•Ready relay contacts
• For use with 24...28V power supplies up to max. 35A
Data sheet
Short description
When failures might cause cost extensive downtimes, you should design
a redundant power supply by using several (N+1) identical power supplies.
The redundancy module SLR02 is designed to create an N+1 redundancy
in combination with the PULS 24...28V power supplies units SL10, SL20
or SL30 or other 24...28V power supplies with an output current of up to
30A (max. 35A). One SLR02 is required for two power supply units. The
module decouples the power supply outputs from each other, so that in
case of failure one power supply unit cannot overload the other power
supply units.
A relay-changeover contact, picked up under normal conditions and
dropped in case of failure, indicates the status of each connected power
supply unit.
A Single Redundancy Module, the SLR01, is available to design a redundancy with one attached power supply unit and an output current of up
to 40A (max. 50A). For smaller current values of 2.5A, 5A and 10A PULS
also offers the SLR2, SLR5 and SLR10 power supplies with integrated redundancy modules.
Decoupling part
Voltage
• nominal value
• max. rated
Voltage drop
V
→ V
in
out
Current per input
• nominal value
• max. rated
Output current
• nominal value
• max. rated
Parallel operation for increasing the power is only permissible if the total output current cannot exceed the maximum rated value of 35A
(danger of overloading).
Inverse battery
protection
Connection
• Connector size
range
Note: The GND connector on the module exclusively serves as intrinsic
power supply
24 V DC
35 V, short-term 45 V
typ. 0.5 V
20-30 A
35 A
20-30 A
35 A
yes
via stable screw terminals
solid: 0.5 - 6 mm
2
flexible: 0.5-4 mm
2
Construction / Mechanics*
Housing dimensions and Weight
•W x H x D
• Free space
for ventilation
•Weight
Design advantages:
• All connection blocks are easy to reach as mounted at the front
panel
Order information
48 mm x 124 mm x 102 mm (+ DIN Rail)
above/below 10 mm recommended
left/right 10 mm recommended
625 g
Relay contacts
Relay type
• relay picks up („ok“)
• relay drops out
Upper limit V
• hysteresis
Lower limit V
• guaranteed range
• preset
• hysteresis
Contact load 28 V DC / 1 A or 120 V AC / 0.5 A
Connection
• connector size
range
LEDs on the front panel
• for inputs
• for output
Note:
• All relay contacts are potential-free.
• The SLR02 includes two of these relay contacts, each per input.
high
low
Changeover contact, picked-up during normal
operation
when V
when V
30 V ± 5% fix
appr. 0.7 V
adjustable
16...27 V
22 V ± 1%
appr. 0.7 V
via stable screw terminals
solid: 0.5 - 6 mm
green LED, when V
green LED, when V
between V
in
< V
in
low
and V
low
or Vin > V
Not OK
OK
Not OK
2
flexible: 0.5-4 mm
between V
in
> appr. 2.5...3.5 V
out
high
high
low
Hysteresis
drops out30.7 V
picks up30.0 V
picks up22.0 V
drops out21.3 V
and V
2
high
Further information
Test voltage
• relay cont., V
•Vin, V
Ambient temperature
range T
Efficiency > 97 %
*For further information see data sheets „The SilverLine“, „SilverLine
Family Branches“
out
amb
, V
in
/ housing
500 V AC
out
500 V AC
Operation: -10°C...+70°C
Storage: -25°C...+85°C
Order number Description
SLR02
SLZ02
slr02e / 040204 1/2
Single Redundancy Module
(Screw mounting set, two needed per unit)
Power wiring SLR02
++––
SL20 or SL30
++––
Side view SLR02
GND +24V
SLR02SL20 or SL30
Vin12Vout GND
Front view SLR02 Bottom view SLR02
Further information, especially about EMC, Connections, Safety, Approvals, Mechanics and Mounting,
see page 2 of „The SilverLine“ data sheet.
Unless otherwise stated, specifications are valid for AC 230V input voltage, +25°C ambient temperature, and 5 min. run-in time. They are subject to change without prior notice.
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