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Technical specifications – Siemens Simatic S7-400 User Manual

Page 186

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Digital Modules

4-64

S7-400, M7-400 Programmable Controllers Module Specifications

A5E00069467-07

Technical Specifications

of the SM 422; DO 16

24 VDC/2 A

Dimensions and Weight

Dimensions W

H

D

(in millimeters)

25

290

210

Weight

Approx. 600 g

Data for Specific Module

Number of outputs

16

Length of cable

Unshielded

Shielded

600 m

1000 m

Voltages, Currents, Potentials

Power rated voltage of the
electronics L+

24 VDC

Rated load voltage L+

24 VDC

Aggregate current of
the outputs (two outputs
per supply group

1)

)

Up to 40

_

C

Up to 60

_

C

Max. 3 A

Max. 2 A

Isolation

Between channels and
backplane bus

Yes

Between the channels

In groups of

Yes

8

Permitted potential difference

Between the different
circuits

75 VDC / 60 VAC

Insulation tested with

Channels against
backplane bus and load
voltage L+

500 VDC

Between the outputs of the
different groups

500 VDC

Current consumption

From the backplane bus

Power supply and load
voltage L+ (no load)

Max. 160 mA

Max. 30 mA

Power dissipation of the
module

Typ. 5 W

Status, Interrupts, Diagnostics

Status display

Green LED per
channel

Interrupts

None

Diagnostic functions

None

Data for Selecting an Actuator

Output voltage

At signal “1”

Min. L+ (-0,5 V)

Output current

At signal “1”

Rated value

2A

Permitted range

5 mA to 2.4 A

At signal “0” (leakage
current)

Max. 0.5 mA

Output delay (for resistive load)

From “ 0” to “1”

Max. 1 ms

At “1” to “0”

Max. 1 ms

Load resistor range

24

W

to 4 k

W

Lamp load

Max. 10 W

Parallel connection of 2
outputs

For redundant triggering of
a load

Possible (only outputs
of the same group)

To increase performance

Not possible

Triggering a digital input

Possible

Switch rate

For resistive load

For inductive load to IEC
947-51, DC 13

100 Hz

0.2 Hz at 1 A
0.1 Hz at 2A

For lamp load

Max. 10 Hz

Limit (internal) of the inductive
circuit interruption voltage up to

Max. -30 V

Short-circuit protection
of output

1

Threshold on

Electronically cyclic

2)

2.8 A to 6 A

1) A supply group always consists of two adjacent

channels starting with channel 0. Channels 0 and 1, 2
and 3 and so on up to 14 and 15 therefore form one
supply group.

2) Following a short circuit, reclosing under a full load is

not guaranteed. To prevent this, you can do one of the
following things:

Change the signal at the output, or

Interrupt the load voltage of the module

Briefly disconnect the load from the output

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