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PIANO-Series
Wiring examples:
Fig. 23-1 1+1 Redundant wiring with 1 YR40.242
20A
Load
Failure
Monitor
+ -
Output
+ + - -
Output
24V,20A
DC-
OK
Power
Supply o o YR40.242
Redundancy
Module
+ + - -
Output
24V,20A
DC-
OK
Power
Supply o o
Input
L N PE
Input
1
+ -
Input
2
+ -
Input
L N PE
I I
L
N
PE
Optionally a YR40.241 can be used, which has the input terminals on top and output on bottom
L
N
PE
I
24V, 20A, 480W,
PIC480.241D
S
INGLE
P
HASE
Fig. 23-2 1+1 Redundant wiring with 2 PIRD20.241
+ + - -
Output
24V,20A
DC-
OK
Power
Supply o o
Input
L N PE
+ +
Input
1
Input
2
PIRD20.241
Redundancy
Module
Output
+ +
+ + - -
Output
24V,20A
DC-
OK
Power
Supply o o
Input
L N PE
I
+ +
Input
1
Input
2
PIRD20.241
Redundancy
Module
Output
+ +
I
NPUT
Failure
Monitor
20A
Load
23.5.
O
PERATION ON
T
WO
P
HASES
The power supply can also be used on two-phases of a three-phase-system.
Such a phase-to-phase connection is allowed as long as the supplying voltage is below 240V +10% .
Ensure that the wire, which is connected to the N-terminal, is appropriately fused.
The maximum allowed voltage between a Phase and the PE must be below 300Vac.
L3
L1
L2
Power Supply
AC
L
N
PE
DC
23.6.
U
SE IN A
T
IGHTLY
S
EALED
E
NCLOSURE
When the power supply is installed in a tightly sealed enclosure, the temperature inside the enclosure will be higher than outside. In such situations, the inside temperature defines the ambient temperature for the power supply.
The following measurement results can be used as a reference to estimate the temperature rise inside the enclosure.
The power supply is placed in the middle of the box, no other heat producing items are inside the box
The temperature sensor inside the box is placed in the middle of the right side of the power supply with a distance of
1cm.
The following measurement results can be used as a reference to estimate the temperature rise inside the enclosure.
Enclosure size
Case A
180x180x165mm
Rittal Typ IP66 Box
PK 9519 100, plastic
Input voltage
Load
230Vac
24V, 16A; (=80%)
Temperature inside the box 48.3°C
Temperature outside the box 21.0°C
Temperature rise 27.3K
Case B
180x180x165mm
Rittal Typ IP66 Box
PK 9519 100, plastic
230Vac
24V, 20A; (=100%)
55.3°C
21.0°C
34.3K
Dez. 2019 / Rev. 1.0 DS-PIC480.241D-EN (MR1-RP22G) All parameters are typical values specified 230Vac, 50Hz input voltage, 24V, 20A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
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