Siemens Simatic S7-300, Инструкция по установке и эксплуатации

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Digital modules
8.5 SM 326; DO 8 x DC 24V/2A PM
Fail-safe signal modules
Installation and Operating Manual, 01/2010, A5E00085586-10
139
Technical data
Electrical isolation

Between channels and backplane bus
Yes

Between channels and the power supply of
the electronics
Yes

Between channels
In groups of
Yes
4
Maximum potential difference
between different circuits
75 V DC
60 V AC
Insulation test voltage 500V DC / 350V AC for 1 min
or 600V DC for 1s
Current consumption

From backplane bus 100 mA, maximum

From supply voltage 1L+
75 mA, maximum

From load voltage 2L+/ 3L+ (no-load)
100 mA, maximum
Power loss of the module 12 W, typical
Status, Interrupts, Diagnostics
Status display
Green LED per channel
Interrupts

Diagnostic interrupt Programmable
Diagnostics functions Programmable

Group fault display
Red LED (SF)

Fail-safe mode display
Green LED (SAFE)

Diagnostic information can be read out Possible
Sensor selection data
Output voltage

For "1" signal
Minimum L+ (-1.0 V)
Output current

Rated value with "1" signal
Permissible range to 40 °C, horizontal installation
Permissible range to 40 °C, vertical installation
Permissible range to 60 °C, horizontal installation
2 A
7 mA to 2 A
7 mA to 1 A
7 mA to 1 A

For "0" signal (residual current)
0.5 mA, maximum
Load resistance range

Up to 40 °C
12 Ω to 3.4 kΩ

Up to 60 °C
24 Ω to 3.4 kΩ
Lamp load 5 W, maximum
Control of a digital input Not possible
Switching frequency

With resistive load
30 Hz, maximum

With inductive load in accordance with IEC
60947-5-1, DC 13
2 Hz, maximum

With lamp load 10 Hz, maximum