Operating Conditions
25
6.4 Voltage Supply
The most important tests and limit values for the voltage supply of the equipment are listed in
the following table:
IEC/EN 61131-2
Chapter 6.3.7
Verification of DC Power Supply Characteristics
The power supply must meet alternatively the
following standards:
IEC/EN 61131-2 or
SELV (Safety Extra Low Voltage, EN 60950) or
PELV (Protective Extra Low Voltage, EN 60742)
The fusing of the control devices must be in accordance to the
statements of this manual.
6.3.7.1.1 Voltage range test:
24 VDC, -20 %...+25 % (19.2 V...30.0 V)
6.3.7.2.1 Momentary interruption immunity test:
DC, PS 2: 10 ms
6.3.7.4.1 Reversal of DC power supply polarity test
6.3.7.5.1 Backup duration withstand test:
Test B, 1000 h, Lithium battery is used for backup
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