24 Rockwell Automation Publication 440R-UM013G-EN-P - December 2022
Chapter 3 Power, Ground, and Wire
Figure 15 - Example Connections to Safety Edges
Safety Outputs GSR safety relays have two types of outputs:
• Electromechanical (CI, DI, EM, EMD, and SI safety relays)
• OSSD (DIS safety relay)
To extend the operating life of the safety relays, surge suppression is required.
Electromechanical Outputs
Internally, the CI, DI, EM, EMD, and SI safety relays have two positive-guided safety relays that
are connected in series to form the safety outputs. One side of the contact must connect to a
voltage supply (see Specifications on page 77 for appropriate ratings). The other side of the
contact must connect to a load.
Figure 16 - Electromechanical Output Connections
OSSD Outputs
The DIS safety relay has OSSD safety outputs on terminals 14, 24, 34 and 44. Output terminals
14 and 24 are pulse tested and can switch loads up to 1.5 A. They can only tolerate a load
capacitance up to 1.6 µF. Terminals 34 and 44 have a series diode and can switch loads up to
0.5 A. They can tolerate a load capacitance up to 9 µF. Terminals 34 and 44 are also pulse
tested, but these pulse tests are ignored as they are not used for short-circuit detection.
These terminals are intended for devices with high capacitance. For example, use terminals
34 and 44 when connecting to the Enable input of the PowerFlex® 70 drive and the Safe Torque
Off inputs of the PowerFlex and Kinetix® drives.
S11 S21 S22 S12 S42 S32S11 S21
S22 S12
S11 S21 S22 S12 S42 S32
Edge 1
Input 1
Input 1 Input 2
Pulse
Testing
Outputs
Pulse
Testing
Outputs
CI and SI
DI and DIS
Input 1 Input 2
Pulse
Testing
Outputs
DI and DIS
Edge 1
Edge 2 Edge 1
EM Device
13 23 33 43
14 24 34 44
K4K3
K2K1
17 27 37 47
18 28 38 48
K4K3
K2K1
13 23 33
14 24 34
K3
K2K1
13 23
14 24
K2K1
13 23
14 24
K2K1
V supply V supply V supply V supply V supply
V common V common V common V common V common
CI DI EM EMD SI
To Next Page
Loading...
Need help?
General
