
2.5.1.3
Power supply units
For the supply of the modules, power supply units according to SELV or PELV specifications
must be used.
Safety Extra Low Voltage (SELV) and Protective Extra Low Voltage (PELV)
To ensure electrical safety of AC500/AC500-eCo extra low voltage circuits, 24
V DC supply, communication interfaces, I/O circuits, and all connected devices
must be powered from sources meeting requirements of SELV, PELV, class 2,
limited voltage or limited power according to applicable standards.
WARNING!
Improper installation can lead to death by touching hazardous voltages!
To avoid personal injury, safe separation, double or reinforced insulation and
separation of the primary and secondary circuit must be observed and imple-
mented during installation.
–
Only use power converters for safety extra-low voltages (SELV) with safe
galvanic separation of the primary and secondary circuit.
–
Safe separation means that the primary circuit of mains transformers must
be separated from the secondary circuit by double or reinforced insulation.
The protective extra-low voltage (PELV) offers protection against electric
shock.
2.5.1.4
Electromagnetic compatibility
Electromagnetic Compatibility
Device suitable for:
Industrial applications
Yes
Domestic applications
Yes
Immunity against electrostatic discharge
(ESD):
According to IEC 61000-4-2, zone B, crite-
rion B
Electrostatic voltage in case of air dis-
charge
8 kV
Electrostatic voltage in case of contact dis-
charge
6 kV
ESD with communication connectors
In order to prevent operating malfunctions,
it is recommended, that the operating
personnel discharge themselves prior to
touching communication connectors or
perform other suitable measures to reduce
effects of electrostatic discharges.
Immunity against the influence of radiated
(CW radiated):
According to IEC 61000-4-3, zone B, crite-
rion A
Test field strength
10 V/m
Immunity against transient interference vol-
tages (burst):
According to IEC 61000-4-4, zone B, crite-
rion B
Supply voltage units (DC)
2 kV
Digital inputs/outputs (24 V DC)
1 kV
System assembly, construction and connection
AC500-eCo > System data AC500-eCo V3
2022/01/31
3ADR010278, 3, en_US
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