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Copyright 2003 by Siemens Energy & Automation, Inc.A5E00262196--01

Product Information

SIMATIC S7--300

Digi tal Outp ut Modu le SM 322; DO 8 X 48--125 VDC/1.5A

New Digital Output Module Available

The S7--300 Digital Output Module SM 322; DO 8 X 48--125 VDC/1.5A has been

added to the S7--300 family. The order number for this module is6ES7 322-1CF00-0AA0.

This product information includes details about the characteristics and technical

specifications of the SM 322; DO 8 X 48--125 VDC/1.5A Module. Refer to the

S7-300 Installation and Hardware Manual  for more information about the S7-300

product family.

Additional Assistance

For assistance in answering technical questions, for training on this product, or for

ordering, contact your Siemens distributor or sales office.

X 23Release 4

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2Product Information S7--300 Digital Output Module SM 322 DO 8 x 48--125 VDC/1.5 A

A5E00262196--01

Digital Output Module SM 322; DO 8 X 48-125 VDC/1.5A

Order Number

6ES7 322-1CF00--0AA0

Characteristics

The SM 322; DO 8 ¢ 48--125 VDC/1.5A features the following characteristics:

! 8 outputs, reverse polarity protection and isolated in groups of 4

! 1.5 A output current

! Rated load voltage 48 to 125 VDC

! Suitable for solenoid valves, DC contactors and indicator lights

! Group error display

Using the module with high-speed counters

Please take note of the following information on the use of the module in

connection with high-speed counters:

Note

When connecting the power supply via a mechanical contact, the outputs of theSM 322; DO 8 × 48-125 VDC/1.5 A carry a ”1” signal for approximately 50 !s forreasons associated with the circuitry.

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3Product Information S7--300 Digital Output Module SM 322 DO 32 x 48--125 VDC/1.5 AA5E00262196--01

Terminal Assignment and Block Diagram of the SM 322; DO 8 X 48-125 VDC/1.5A

Channel number

Status display -- green

1M

48 to125 V

1 L+

2M

48 to125 V

2 L+

SF

1

3

5

7

9

10Backplane bus

interface

+ 5 V

+ 5 V 11

13

15

17

19

20

SF

Fault indicator -- red

Figure 1 Module View and Block Diagram of the SM 322; D0 8¢ 48--125 VDC/1.5 A

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4Product Information S7--300 Digital Output Module SM 322 DO 8 x 48--125 VDC/1.5 A

A5E00262196--01

Technical specifications of the SM 322; DO 8 × 48-125 VDC/1.5 A

Dimensions and Weight

Dimensions W × H × D(in millimeters)

40¢!125¢!117

Weight Approx. 250 g

Data for Specific Module

Supports clockedoperation

No

Number of outputs 8

Length of cable

! Unshielded

! Shielded

max. 600 m

max. 1000 m

Voltages, Currents, Potentials

Rated load voltage L+ 48 VDC to 125 VDC

! Reverse polarity protection Yes, by means offuse1)

Total current of the outputs(per group)

! Horizontal configuration

Up to 40 "C

Up to 50 "C

Up to 60 "C

max. 6 A

max. 4 A

max. 3 A

! Vertical configuration

Up to 40 "C max. 4 A

Isolation

! Between channels andbackplane bus

Yes

! Between the channels

In groups of

Yes

4

Permitted potential difference

! Between the differentcircuits

146 VDC / 132 VAC

Insulation tested with 1500 VAC

Current consumption

! From the backplane bus

! From the load voltage L+(no load)

max. 100 mA

max. 2 mA

Power dissipation of the module typ. 7.2 W

Status, Interrupts, Diagnostics

Status display Green LED per channel

Interrupts None

Diagnostic functions

! Group error display Red LED (SF)2)

Data for Selecting an Actuator

Output voltage

! At ” 1” signal min. L + (--1.2 V)

Output current

!At ” 1” signalRated value

Permitted range

1.5 A

10 mA to 1.5 A

! Permitted surge current max. 3 A for 10 ms

! For ”0” signal(leakage current)

max. 0.5 mA

Output delay (for resistive load)

! At ”0” to ”1”

! At ”1” to ”0”

max. 2 ms

max. 15 ms

Lamp load max. 15 W at 48 Vmax. 40 W at 125 V

Parallel connection of 2 outputs! For redundant actuation of

a loadPossible (only outputsof the same group)

! To increase performance Not possible

Triggering a digital input Possible

Switch rate

! For resistive load

! For inductive load

! For lamp load

max. 25 Hz

max. 0.5 Hz

max. 10 Hz

Limit (internal) of the inductive circuit interruptionvoltage up

typ. M (--1V)

Short-circuit protection of theoutput

! Threshold on

Yes, electronic3)

typ. 4.4 A

Replacement fuses Fuse 6.3 A/250 V, quickblow, 5 x 20 mm

! Schurter

! Wickmann

SP0001.1012

194-1630-0

Fuse carrier

! Wickman 653 0000 040

1) The fuses on this module are merely supplementaryfuses. External overcurrent protection (suitable forbranch circuits conforming to the local regulations for

electrical engineering) is required in the supply cables ofthe load circuit.

2) Potential errors are:- No load voltage- Fuse defective- Output overloaded

3) If an overload condition is detected, the output isinhibited for approximately 2.4 s.