Step Operating instruction Figure
1 Insert the removable terminal block into the
mechanically coded guiderail of the device ①.
2 Slide the removable terminal block back until it
audibly engages.
3 Check that the clip of the removable terminal
block closes ush with the front panel ②.
5.3.3.9 Inserting and sealing the memory module
Memory module
The memory module is included in the scope of delivery of the 3RK3 central unit. Program the
memory module in the 3RK3 central unit that is connected to a conguring PC or programming
device.
Inserting and sealing the memory module
Note
The memory module must only be connected/disconnected when the 3RK3 central unit is
disconnected from the power supply.
Connect the memory module to the interface on the underside of the 3RK3 central unit ①.
Engage the locking mechanisms ②. Make sure that the memory module is positioned correctly
on the 3RK3 central unit.
Depending on the specic requirements, the memory module can be sealed with a sealing wire
and a suitable crimp seal:
• Sealing with the control cabinet
• Sealing with the 3RK3 central unit
Description of the hardware
5.3 Connecting / wiring
SIRIUS 3RK3 Modular Safety System
Equipment Manual, 07/2020, NEB926253002000/RS-AC/006 157