Description of the hardware
5.1 Description of the individual modules
Modular Safety System 3RK3
54 System Manual, 10/2008, 926 2530-02 DS 02
Terminal designations of the 4/8F-RO expansion module
Terminal Meaning Description
Q1.1, Q1.2 Safety-related relay output
Q2.1, Q2.2 Safety-related relay output
Q3.1, Q3.2 Safety-related relay output
Q4.1, Q4.2 Safety-related relay output
Q5.1, Q5.2 Safety-related relay output
Q6.1, Q6.2 Safety-related relay output
Q7.1, Q7.2 Safety-related relay output
Q8.1, Q8.2 Safety-related relay output
Isolated output for connecting actuators
L+ Power supply 24 V DC
M Ground Ground to 24 V DC
Interfaces of the expansion module 4/8F-RO
Interface Meaning Description
X1 Interface Connection of central unit/expansion module
X2 Interface Connection of expansion module
Operator controls and displays of the expansion module 4/8F-RO
Element Meaning
SF/Q1 Group error / relay output
Q2 ...Q8 Relay outputs
Connecting inputs and outputs
You can find more information on connecting inputs and outputs in the section Connecting
safety-related inputs and outputs (Page
69).
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