Datasheet

UC10.241, UC10.242
UC-Series
24V, 15A, CAPACITOR-BASED BUFFER MODULES
22.4. PARALLEL USE FOR REDUNDANCY
Two buffer modules can be paralleled to build a 1+1 redundant system to gain higher system reliability.
Recommendations for building redundant power systems:
a) Use separate input fuses for each power supply.
b) Set the power supply into “Parallel use” mode if available.
c) Use a redundancy module to decouple the two power sources.
d) Monitor the individual sources. Therefore, use the alarm contacts of the YRM2.DIODE redundancy module.
(The YRM2.DIODE is suitable for a 10A redundant system)
e) It is desirable to set the output voltages of all power supplies to the same value (± 100mV) or leave it at the
factory setting.
Fig. 22-2 Wiring example for a fully redundant system,
redundant power supplies and redundant buffer modules
+ +
- -
Power
Supply
24V Output
+ +
- -
Power
Supply
24V Output
Load
+
-
Failure
Monitor
YRM2.DIODE
+ -
OUT
+ -
IN 1
+ -
IN 2
IN 1 IN 2
23/27
Ready
Buffering
Inhibit
UC10
Buffer Module
IN OUT
++
-
-
Inhibit
+ -
Ready Buffering PC Mode
UC10
Buffer Module
IN OUT
++
-
-
Inhibit
+ -
Ready Buffering PC Mode
22.5. PARALLEL USE FOR LONGER BUFFER TIMES
Buffer modules can be paralleled to extend the buffer time.
Fig. 22-3 Wiring example for parallel use for longer buffer times
+ +
- -
Power
24V Output
Supply
Load
+
-
Ready
Buffering
Inhibit
UC10 UC10 UC10
Buffer Module
IN OUT
++
-
-
Buffer Module
IN OUT
++
-
-
Buffer Module
IN OUT
++
-
-
Inhibit
+ -
Ready Buffering Inhibit
+ -
Ready Buffering Inhibit
+ -
Ready Buffering PC Mode PC Mode PC Mode
Apr. 2014 / Rev. 2.0 DS-UC10.241-EN (REVC)
All parameters are specified at 24V, 10A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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