Siemens SIRIUS 3SK1, Manual

Page: 179 / 262

3SK1 safety relays
Manual, 04/2013, A5E02526190021A/RS-AA/01
179
Configuration / operation
10
10.1 Procedure for configuration
General information:
● It is only possible to change the configuration (DIP switch, NC/NO evaluation,
potentiometer, input and output expansion) in configuration mode. Modifications during
operation are not accepted.
● A configuration change (DIP switch, NC/NO evaluation, potentiometer) is indicated in
safety mode by the "DEVICE" LED flashing green/yellow, but does not change the device
function.
● In safety mode, if a change in the system configuration (input and output expansion) is
detected, the device switches to error mode ("DEVICE" LED and "SF" LED red). A restart
is only possible using Power OFF/ON.
Procedure for configuring a basic unit
1. Set the configuration (DIP, PAR, potentiometer, input expansion, output expansion) in
accordance with the desired function.
2. Connect the power supply.
3. If the device detects a modified configuration, it remains in configuration mode (LEDs
flash) during power up.
4. Confirm the new configuration by operating the SET/RESET pushbutton for more than 1s.
5. The configuration has been accepted and the device changes to safety mode.
Note
Configuration and setting the delay time
A change to the configuration must only ever be carried out when the system is
disconnected from the power.
In safety mode, an adjustment to the potentiometer does not result in a change to the
parameterized delay time.
A change to the potentiometer setting made during operation is not accepted and is
indicated in safety mode by a yellow/green flashing "DEVICE" LED. The device can be
restarted by performing a RESET (pressing the SET/RESET button) or by disconnecting and
reconnecting the supply voltage. Following a restart, the device remains in safety
configuration mode during power up (all enabling circuits are shut down) until the new delay
time is accepted by pressing the SET/RESET button.