Siemens SIMATIC NET RUGGEDCOM RST2228 Installation Manual page 23

Installing the Device
2.4 Connecting the Failsafe Alarm Relay
To connect the failsafe alarm relay, do the following:
1.
2.
14
Connect the failsafe alarm relay terminal block to the device. The terminal block
is available as either a screw-type terminal block or a pluggable terminal block.
• For a screw-type terminal block, insert the terminal block into the device.
The terminal block will be secured to the device when the safety cover is
installed later in the installation process.
• For a pluggable terminal block, insert the terminal block into the device and
tighten the screws.
1
Pluggable Terminal Block
1
Screw-Type Terminal Block
2
Figure 2.4 Assembling the Failsafe Alarm Relay Terminal Block
Connect a failsafe device to the terminal block.
3
1
Pluggable Terminal Block
1
Screw-Type Terminal Block
2
Normally Open Terminal
3
Common Terminal
4
Normally Closed Terminal
5
Figure 2.5 Failsafe Alarm Relay Wiring
2
4 5
2
3 5
4
RUGGEDCOM RST2228
Installation Manual, 08/2020, C79000-G8976-1359-10