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
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