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II - DCE FEL ČVUT v Praze

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Interference rejection, error limits<br />

Crosstalk attenuation between<br />

outputs<br />

Operational limit (in total<br />

temperature range, referred to<br />

output range)<br />

Basic error (operational limit at<br />

25C, referred to output range)<br />

Temperature error<br />

(referred to output range)<br />

Linearity error<br />

(referred to output range)<br />

Repeatability (in steady-state<br />

condition at 25 C, referred to<br />

output range)<br />

Output ripple; range 0 to 50<br />

kHz (referred to output range)<br />

Interrupts, Diagnostics<br />

130 dB<br />

0.55 %<br />

0.2 %<br />

0.01 %/K<br />

0.02 %<br />

0.005 %<br />

0.02 %<br />

Interrupts<br />

Diagnostic interrupt configurable<br />

Diagnostic functions configurable<br />

Group fault indication red LED (SF)<br />

Channel fault indication red LED (F)<br />

per channel<br />

Diagnostic information<br />

readout<br />

possible<br />

Monitoring for<br />

Wire break yes<br />

as of output value and > 0.1 mA<br />

output voltage > 12 V<br />

I/O Modules with Intrinsically-Safe Signals<br />

C79000-G7076-C152-04<br />

Safety data (refer to Certificate of Conformity in<br />

Appendix A)<br />

Type of protection to<br />

EN 50020<br />

[EEx ib] <strong>II</strong>C<br />

Maximum values of output<br />

circuits (per channel)<br />

U0 (no-load output<br />

voltage)<br />

max. 14 V<br />

I0 (short-circuit current) max. 70 mA<br />

P0 (load power) max. 440 mW<br />

L0 (permissible external<br />

inductance)<br />

max. 6.6 m<br />

C0 (permissible external<br />

capacitance)<br />

max. 850 nF<br />

Um (error voltage) max. 60 V DC<br />

30 V AC<br />

Ta (permissible ambient<br />

temperature)<br />

max. 60C<br />

Data for actuator selection<br />

Output ranges (rated values)<br />

Current from 0 to 20 mA<br />

from 4 to 20 mA<br />

Load impedance (in rated<br />

range of output)<br />

for current outputs<br />

– resistive load<br />

– inductive load<br />

– capacitive load<br />

1) Limitation by PTB-approval<br />

When used in non-Ex area<br />

– resistive load max. 500 <br />

– inductive load max. 15 mH<br />

– capacitive load max. 3 F can be set as the load impedance.<br />

SIMATIC S7 Ex Analog Modules<br />

max. 500 <br />

max. 6.6 mH 1)<br />

max. 850 nF 1)<br />

Current output<br />

No-load voltage max. 14 V<br />

Destruction limit for externally<br />

applied voltages / currents max. + 12 V / - 0.5V<br />

Voltages<br />

max. + 60 mA / - 1A<br />

Current<br />

Connection of actuators<br />

for current output<br />

2-wire connection possible<br />

3-73

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