SM 326 故障安全數(shù)字輸入量模塊 - 安全集成

Supply voltage

Rated value (DC)

24 V

Input current

from load voltage L+ (without load), max.

160 mA

450 mA

from backplane bus 5 V DC, max.

90 mA

100 mA

Encoder supply

Number of outputs

8

4; Isolated

Type of output voltage

8.2 V DC

Output current

• ● Rated value

400 mA

Power loss

Power loss, typ.

4.5 W

10 W

Digital inputs

Number of digital inputs

8

24

Number of simultaneously controllable inputs

all mounting positions

• — up to 40 °C, max.

8

24

• — up to 60 °C, max.

8

24; (at 24 V) or 18 (at 28.8 V)

Input voltage

• ● Type of input voltage

DC

DC

• ● Rated value (DC)

24 V

• ● for signal "0"

-30 to +5V

• ● for signal "1"

+11 to +30V

Input current

• ● for signal "0", max. (permissible quiescent current)

0.35 to 1.2 mA

2 mA

• ● for signal "1", typ.

2.1 to 7 mA

10 mA

Input delay (for rated value of input voltage)

for standard inputs

• — at "0" to "1", max.

3.4 ms

• — at "1" to "0", max.

3.4 ms

for NAMUR inputs

• — at "0" to "1", max.

1.2 to 3 ms

• — at "1" to "0", max.

1.2 to 3 ms

Cable length

• ● shielded, max.

200 m

200 m

• ● unshielded, max.

100 m

100 m

Encoder

Connectable encoders

• ● 2-wire sensor

Yes; if short-circuit test is deactivated

• — permissible quiescent current (2-wire sensor), max.

2 mA

Interrupts/diagnostics/status information

Diagnostic functions

Yes

Alarms

• ● Diagnostic alarm

Yes; Parameterizable

Yes

Diagnostic messages

• ● Diagnostic information readable

Yes

Diagnostics indication LED

• ● Fail-safe operation

Yes

Yes

• ● Group error SF (red)

Yes

Yes

Ex(i) characteristics

Module for Ex(i) protection

Yes

Maximum values of input circuits (per channel)

• ● Co (permissible external capacity), max.

3 µF

• ● Io (short-circuit current), max.

13.9 mA

• ● Lo (permissible external inductivity), max.

80 mH

• ● Po (power of load), max.

33.1 mW

• ● Uo (output no-load voltage), max.

10 V

• ● Um (fault voltage), max.

60 V DC/30 V AC

• ● Ta (permissible ambient temperature), max.

60 °C

60 °C

Potential separation

Potential separation digital inputs

• ● between the channels

Yes

Yes

• ● between the channels, in groups of

12

• ● between the channels and backplane bus

Yes

Yes

• ● between the channels and the power supply of the electronics

Yes

Isolation

Isolation tested with

500 V DC/350 V AC

tested with

• ● Channels against backplane bus and load voltage L+

1500 V AC

• ● Channels among one another

1500 V AC

• ● Load voltage L+ against backplane bus

500 V DC/350 V AC

Highest safety class achievable in safety mode

• ● acc. to DIN VDE 0801

AK 6

• ● acc. to EN 954

Cat. 4

Cat. 4

• ● SIL acc. to IEC 61508

SIL 2 (single-channel), SIL 3 (two-channel)

SIL 3

Use in hazardous areas

• ● Test number KEMA

99 ATEX 2671 X

Connection method

required front connector

1x 40-pin

40-pin

Dimensions

Width

80 mm

80 mm

Height

125 mm

125 mm

Depth

120 mm

120 mm

Weights

Weight, approx.

482 g

442 g