4 Technical Data
256
7ST6 Manual
E50417-G1176-C251-A3
4.1
General
4.1.1
Analog Inputs and Outputs
Current Inputs
Voltage Inputs
Measuring Transducer Inputs
Rated system frequency
(depending on ordered version, or settable)
f
N
16.7
25, 50 or 60 Hz
Rated current
I
N
1 A or 5 A
Measuring range
100 I
N
Error limits
1% of I
N
for I
≤
I
N
1% of I for I > I
N
Thermal loading
(rms values)
100 I
N
for 1 s
20 I
N
for 10 s
4 I
N
continuous
Dynamic loading
(pulse current)
250·I
N
for one half-cycle
Power consumption per phase
Approx. 0.05 VA at I
N
= 1 A
Approx. 0.3 VA at I
N
= 5 A
Rated voltage
U
N
80 V to 125 V (adjustable)
Measuring range
200 V
Error limits
1% of U
N
for U
≤
U
N
1% of U for U > U
N
Voltage overload capacity
220 V continuous
Power consumption per phase
Approx. 0.1 VA
Rated DC current
I
N
20 mA
Measuring range DC
–24 to +24 mA
Error limits
1% of I
N
for I
≤
I
N
1% of I for I > I
N
Input resistance
Approx. 11
Ω
Overload capability
±
100 mA continuous
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