Reference Manual Manual

All parameters are specified at 24V, 3.8A, 24Vdc input voltage, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM023A-EN-P — January 2014 13
Bulletin 1606 Switched Mode Power Supplies
15. Safety Features
Input / output separation
*) SELV IEC/EN 60950-1
PELV IEC/EN 60204-1, EN 50178, IEC 62103, IEC 60364-4-41
Class of protection III PE (Protective Earth) connection not required. A
connection of the “chassis ground” pin to earth is
recommended for best EMI performance
Isolation resistance > 5MOhm input to output, 500Vdc
PE resistance < 0.1Ohm between housing and Chassis Ground terminal
Touch current (leakage current) The leakage current which is produced by the DC/DC converter itself depends on the
input voltage ripple and need to be investigated in the nal application.
For a smooth DC input voltage, the produced leakage current is less than 100μA.
*) Double or reinforced insulation
16. Dielectric Strength
The output voltage is oating and has no ohmic connection to the ground.
Type and factory tests are conducted by the manufacturer. Field tests may be conducted in the eld using the
appropriate test equipment which applies the voltage with a slow ramp (2s up and 2s down). Connect all phase-
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.
Fig. 16-1 Dielectric strength
A B C
Type test 60s 1500Vac 1500Vac 500Vac
Factory test 5s 1500Vac 1500Vac 500Vac
Field test 5s 1000Vac 1000Vac 500Vac
Cut-off current setting > 30mA > 30mA > 12mA
A
C
B
+
Input
Chassis
ground
Output
-
+
-
To fulll the PELV requirements according to EN60204-1 § 6.4.1, we
recommend that either the + pole, the – pole or any other 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 can not be switched off when unnoticed earth
faults occur.
17. Environmental Compliance
The unit does not release any silicone and is suitable for the use in paint shops.
The unit conforms to the RoHS directive 2002/96/EC
Electrolytic capacitors included in this unit do not use electrolytes such as Quaternary Ammonium Salt Systems.
Plastic housings and other molded plastic materials are free of halogens, wires and cables are not PVC insulated.
The production material within our production does not include following toxic chemicals:
Polychlorized Biphenyl (PCB), Polychlorized Terphenyl (PCT), Pentachlorophenol (PCP), Polychlorinated naphthalene
(PCN), Polybrom Biphenyll (PBB), Polybrom Bipheny-oxyd (PBO), Polybrominated Diphenylether (PBDE), Polychlorinated
Diphenylether (PCDE), Polydibromphenyl Oxyd (PBDO), Cadmium, Asbest, Mercury, Silicia