Data Sheet

YR2.DIODE
Y-Series
DC12-48V (120V), 20A, DUAL REDUNDANCY MODULE
17.6. EXAMPLE: REDUNDANCY FOR CONTROLS
The example shows a cost effective solution to get redundant power for a PLC or controller system.
In many cases, two power supplies are used; one for the demanding loads and another one for the controls and
sensitive loads. The power supply for the demanding loads can be used as a redundant source to supply the controls.
Traditional approach:
LoadPS1
PLC
PS2
Load
PLC
PS1
PS2
YR2
Improved approach:
Fig. 17-4 Wiring diagram, redundancy for sensitive loads
Sensitive
Load
e.g.
Controller
optional
L N PE
+ +
- -
QS5.241
Power
Supply
Adj
Overload
DCok
24V,
5A
I I I
L1
L2
PE
L3
I
N
Heavy
Loads
e.g. Motors
L1 L2 L3 PE
+ +
- -
QT20.241
Power
Supply
Adj
Overload
DCok
24V,20A
YR2.Diode
Redundancy
Module
+ -
OUT
+ -
IN 1
+ -
IN 2
Failure
Monitor
Note: Use separate mains systems for each power supply whenever it is possible
Apr. 2014 / Rev. 1.4 DS-YR2.DIODE-EN
All parameters are specified at 24V, 20A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone [phone] Germany
17/19