20
Rockwell Automation Publication 1606-RM101A-EN-P - July 2020
Dielectric Strength
The output voltage is floating and has no ohmic connection to the ground. The
manufacturer conducts type and factory tests. 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 following table.
Figure 24 - Dielectric Strength
To fulfill the PELV requirements according to EN60204-1 § 6.4.1, we
recommend that either the + pole, the – pole, or another part of the output
circuit shall be connected to the protective earth system. This helps to avoid
situations in which a load starts unexpectedly or cannot be switched off when
unnoticed earth faults occur.
Test Type
Time
A
B
C
D
Type Test
60 s
2500V AC
4000V AC
1000V AC
500V AC
Factory Test
5 s
2500V AC
2500V AC
500V AC
500V AC
Field Test
5 s
2000V AC
2000V AC
500V AC
500V AC
Cutoff Current Setting
—
>10 mA
>10 mA
>20 mA
>1 mA
IMPORTANT
When testing input to DC OK, ensure that the max 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.
A
D
C
B
B
L
Input
DC-ok
13
14
Earth, PE
Output
+
-
N
