22
Rockwell Automation Publication 1606-RM110A-EN-P - July 2020
Redundancy Power Supply - 24V, 10 A, 240 W, Single-phase Input
D
ielectric
S
trength
The output voltage is floating and has no ohmic connection to the ground.
Type and routine tests are conducted by the manufacturer. Field tests may be
conducted in the field using the appropriate test equipment which applies the
voltage with a slow ramp (2 s up and 2 s down). Connect all input-terminals
together as well as all output poles before conducting the test. When testing,
set the cut-off current settings to the value in the table below.
Figure 25 - Dielectric Strength
A
B
C
D
(1)
(1)
When testing input to DC OK ensure that the maximal voltage between DC OK and the output is not exceeded (column D). We
recommend connecting DC OK pins and the output pins together when performing the test.
Type test
60s 2,500V AC
4,000V AC
1,000V AC
500V AC
Routine test
5s
2,500V AC
2,500V AC
500V AC
500V AC
Field test
5s
2,000V AC
2,000V AC
500V AC
500V AC
Cut-off current setting for field test > 10 mA
> 10 mA
> 20 mA
> 1 mA
It is recommend that either the + pole, the – pole or any other part of the output circuit shall be connected to the
earth/ground system. This helps to avoid situations in which a load starts unexpectedly or can not be switched off
when unnoticed earth faults occur.
D
A
C
B
B (1)
N
L
Input
DC-ok
Earth, PE
Output
-
+