Siemens Simatic M7-400 Manuel d'utilisateur télécharger pdf (Page 56)

SIMATIC S7-400

Digital modules

SM 421 digital input module

6/56

Siemens ST 70 · 2013

■

Overview

• Digital inputs for the SIMATIC S7-400

• For connecting standard switches and two-wire proximity

switches (BERO)

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Technical specifications

6ES7 421-7BH01-

0AB0

6ES7 421-1BL01-

0AA0

6ES7 421-1EL00-

0AA0

6ES7 421-1FH20-

0AA0

6ES7 421-7DH00-

0AB0

Supply voltage

Load voltage L+

• Rated value (DC) 24 V

• permissible range, lower limit (DC) 20.4 V

• permissible range, upper limit (DC) 28.8 V

Input current

from backplane bus 5 V DC, max. 130 mA 20 mA 200 mA 80 mA 150 mA

from supply voltage L+, max. 120 mA

Power losses

Power loss, max. 5W 6W 16 W 12 W 8 W; 3.5 W (24 V DC);

6.5 W (48 V DC);

8.0 W (60 V DC)

Digital inputs

Number/binary inputs 16 32 32 16 16

Number of simultaneously

controllable inputs

• all mounting positions

- up to 40 °C, max. 16 32 32 16 16

- up to 60 °C, max.

16 32 32 16 16

Input voltage

• Type of input voltage DC DC AC/DC AC/DC AC/DC

• Rated value, DC

24 V 24 V

• Rated value, UC 120 V 230 V; 120/230 V UC 24 V; 24 to 60 V UC

• for signal "0"

-30 to +5 V DC -30 to +5 V DC 0 to 20 V UC 0 to 40 V AC/

-40 to +40 V DC

-6 to +6 V DC/

0 to 5 V AC

• for signal "1"

11 to 30 V DC 13 to 30 V DC 79 to 132 V AC;

80 to 132 V DC

74 to 264 V AC;

80 to 264 V DC,

-80 to -264 V

15 to 72 V DC;

-15 to -72 V DC;

15 to 60 V AC

• Frequency range

47 to 63 Hz 47 to 63 Hz 47 to 63 Hz AC / DC

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Siemens Simatic M7-400 Manuel d'utilisateur Page 56

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