YRM2.DIODE
Y-Series
24-60V, 20A, D
UAL
R
EDUNDANCY
M
ODULE
Nov 2006 / Rev. 1.0 DS-YRM2.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 +49 89 9278 0 Germany
16/17
23.7. D
ECOUPLING OF
B
UFFERED
B
RANCHES
Buffer energy supplied from a DC-UPS or buffer module is not wasted in “power branches”.
Please note:
Set output voltage of the power supply to a level that the buffer unit or DC-UPS will not start unexpected. Take the
voltage drop of the YRM2.DIODE into account.
Fig. 23-6
Wiring diagram, Decoupling of Buffered Branches
Failure
Monitor
Buffered
Load
e.g.
Controller
opt
ional
I
I
I
L1
L2
PE
L3
Load
e.g. Motor
L1 L2 L3 PE
Power Supply
+ +
- -
24V, 20A
Buffer
Module
+
-
YRM2.DIODE
+
-
OUT
+
-
IN 1
+
-
IN 2
IN 1 IN 2
23.8. U
SE IN A
T
IGHTLY
S
EALED
E
NCLOSURE
When the redundancy module is installed in a tightly sealed enclosure, the temperature inside the enclosure will be
higher than outside. The inside temperature defines the ambient temperature for the redundancy module.
Results from such an installation:
Power supply is placed in the middle of the box, no other heat producer inside the box
Enclosure:
Rittal Typ IP66 Box PK 9516 100, plastic, 110x180x165mm
Load:
24V, 16A; (=80%) load is placed outside the box
Input:
24Vdc
Temperature inside enclosure:
58.8°C (in the middle of the right side of the power supply with a distance of 2cm)
Temperature outside enclosure: 24.6°C
Temperature rise:
34.2K
