SIEMENS
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Siemens IC 10 · 2017
Safety Relays
SIRIUS 3SK Safety Relays
General data
11
Overview of functions of the 3SK series
✓
Available
--
Not available
1)
24 V basic units only.
2)
24 V AC/DC.
3)
Possible using 3SK1230 power supply via device connector.
4)
Up to 4 independent safe outputs, two of which via device connectors.
5)
Up to 6 independent safe outputs, two of which via device connectors.
6)
Possible using 3SK1230 power supply by means of wiring.
Type
3SK1 Standard basic units
3SK1 Advanced basic units
3SK2 basic units
22.5 mm
45 mm
Safe relay outputs
Safe semiconductor
outputs
Safe relay outputs
Safe semiconductor
outputs
Safe semiconductor
outputs
Safe semiconductor
outputs
Sensors
• Mechanical
✓
✓
✓
✓
✓
✓
• Non-floating
✓
1)
✓
✓
✓
✓
✓
• Antivalent
--
--
✓
✓
✓
✓
• Expandable
--
✓
by means of
cascading
✓
✓
--
--
Inputs
• Freely parameterizable
--
--
--
--
10 single-channel,
5 two-channel
20 single-channel,
10 two-channel
Parameters
• Start
(auto/monitored)
✓
✓
✓
✓
A variety of functions can be set for each
input/output by means of software
parameterization.
• Sensor connection
2 x 1-channel/
1 x 2-channel
✓
by means of
wiring
✓
✓
✓
• Cross-circuit detection
✓
by means of
wiring
✓
✓
✓
• Start test ON/OFF
--
✓
✓
✓
• Monitoring of two-hand
operation consoles
according to EN 574
--
--
✓
✓
• Pressure-sensitive mat
--
--
✓
✓
Safe outputs
• Instantaneous
✓
✓
✓
✓
Parameterizable
Parameterizable
• Time-delayed
--
--
✓
✓
Parameterizable
Parameterizable
• Expandable with safe relay
outputs
✓
by means of
wiring
✓
by means of
wiring
✓
✓
✓
✓
• Independent
--
--
--
--
✓
4)
✓
5)
• Device connectors
--
--
✓
✓
✓
✓
Options
• External memory module
--
--
--
--
--
✓
• Display on the device
--
--
--
--
--
✓
• External diagnostics
module can be connected
--
--
--
--
✓
✓
Control supply voltage
• 24 V DC
✓
2)
✓
✓
✓
✓
✓
• 110 ... 240 V AC/DC
✓
✓
6)
✓
3)
✓
3)
--
--
© Siemens AG 2016