Siemens Simatic M7-400 Manual do Utilizador descarregar pdf (Página 68)

SIMATIC S7-400

Analog modules

SM 431 analog input module

6/68

Siemens ST 70 · 2013

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Technical specifications (continued)

6ES7 431-7QH00-0AB0 6ES7 431-7KF00-0AB0 6ES7 431-7KF10-0AB0

Supply voltage

Load voltage L+

• Rated value (DC) 24 V; Only required

for supplying 2-wire transmitters

• Reverse polarity protection Yes

Input current

from load voltage L+ (without load),

max.

400 mA 400 mA 400 mA

from backplane bus 5 V DC, max.

700 mA 1 200 mA 650 mA

Power losses

Power loss, typ. 4.5 W 4.6 W 3.3 W

Analog inputs

Number of analog inputs 16 8 8

Number of analog inputs

for voltage/current measurement

16 8

Number of analog inputs for resistance

measurement

8 8

permissible input voltage for voltage

input (destruction limit), max.

18 V; 18 V continuous, 75 V for 1 ms

(mark to space ratio 1:20)

35 V; 35 V continuous, 75 V for max.

1 s (mark to space ratio 1:20)

35 V; 35 V continuous, 75 V for max.

1 s (mark to space ratio 1:20)

permissible input current for current

input (destruction limit), max.

40 mA 32 mA

Input ranges (rated values), voltages

• 1 to 5 V Yes Yes

• -1 V to +1 V Yes Yes

• -10 V to +10 V Yes Yes

• -100 mV to +100 mV Yes

• -2.5 V to +2.5 V Yes Yes

• -20 mV to +20 mV Yes

• -25 mV to +25 mV Yes

• -250 mV to +250 mV Yes Yes

• -5 V to +5 V Yes Yes

• -50 mV to +50 mV Yes Yes

• -500 mV to +500 mV Yes Yes

• -80 mV to +80 mV Yes Yes

Input ranges (rated values), currents

• 0 to 20 mA Yes Yes

• -10 to +10 mA Yes Yes

• -20 to +20 mA Yes Yes

• -3.2 to +3.2 mA Yes

• 4 to 20 mA Yes Yes

•-5 to +5 mA Yes Yes

Input ranges (rated values),

thermoelements

•Type B Yes Yes

•Type E Yes Yes

•Type J Yes Yes

•Type K Yes Yes

•Type L Yes Yes

•Type N Yes Yes

•Type R Yes Yes

•Type S Yes Yes

•Type T Yes Yes

•Type U Yes Yes

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