Because of limitations of space, when ring lug terminal is ordered for
Binary I/O connections, one blank slot is necessary between two adjacent
IO cards. Please refer to the ordering particulars for details.
21.5.4
Influencing factors
Table 684:
Temperature and humidity influence
Parameter
Reference value
Nominal range
Influence
Ambient temperature,
operate value
+20°C
-10 °C to +55°C
0.02% / °C
Relative humidity
Operative range
10%-90%
0%-95%
10%-90%
-
Storage temperature
-
-40 °C to +70 °C
-
Table 685:
Auxiliary DC supply voltage influence on functionality during operation
Dependence on
Reference value
Within nominal range Influence
Ripple, in DC auxiliary voltage
Operative range
max. 2%
Full wave rectified
15% of EL
0.01% / %
Auxiliary voltage dependence, operate
value
±20% of EL
0.01% / %
Interrupted auxiliary DC voltage
24-60 V DC ± 20%
90-250 V DC
±
20%
Interruption
interval
0–50 ms
No restart
0–∞ s
Correct behaviour
at power down
Restart time
<300 s
Table 686:
Frequency influence (reference standard: IEC 60255–1)
Dependence on
Within nominal range
Influence
Frequency dependence,
operate value
f
n
±2.5 Hz for 50 Hz
f
n
±3.0 Hz for 60 Hz
±1.0% / Hz
Harmonic frequency
dependence (20% content)
2
nd
, 3
rd
and 5
th
harmonic of f
n
±2.0%
Section 21
1MRK 511 365-UUS A
IED hardware
822
Phasor measurement unit RES670 2.1 ANSI
Technical manual
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