Wiring Diagrams - 5069-Obv8S, 5069-Obv8Sk; Bipolar Mode - Rockwell Automation Allen-Bradley Compact 5000 User Manual

Appendix C Application and Wiring Examples for Safety I/O Modules
Wiring Diagrams -
5069-OBV8S, 5069-OBV8SK
The terminals for each channel function as a Bipolar connection pair when you use a 5069-OBV8S or 5069-OB8VSK module in Bipolar switching
Connection Pairs mode. For example, the Safety Output 0 P (Sourcing) terminal and the Safety Output 0 N (Sinking) terminal are a Bipolar or PN connection pair.
When the module is in Bipolar switching mode, you must connect the device to both terminals.
Channel These wiring examples show connections to the PN pair for Safety Output 0. You are not limited to these channels. You can use all channel pairs as
Connections determined by your application.
LA Power The Local Actuator (LA+ and LA –) power connections are used to supply field-side power to the module.
The 5069-OBV8S and 5069-OBV8SK modules do not draw current from the SA power bus.
The modules are DC-type modules, so you must install them on a DC SA power bus.
• If you install modules in a system that uses both AC SA power and DC SA power, you must isolate SA power buses by type with a 5069-FPD module.
To create separate SA power buses, complete these steps.
a. Install the modules that use one type of SA power, for example DC, to the right of the adapter or controller. This is the first SA power bus.
b. To create a second SA power bus, install the 5069-FPD field potential distributor to the right of these modules.
IMPORTANT
c. Install the modules that use the other type of SA power, for example AC, to the right of the 5069-FPD module.
• If you have a direct connection between the safety output module and an input module and those modules are powered by separate power
supplies, we strongly recommend that you connect SA- and LA- together. This practice helps to reduce the risk of grounding float from disruptive
diagnostics.
• The SA power to adjacent SA power electrical isolation that the 5069-FPD field potential distributor provides has a rating of 240V AC (continuous)
reinforced insulation type.
Bipolar Mode Wiring Diagrams - 5069-OBV8S, 5069-OBV8SK
Example Wiring Diagram
LA +
K1
K2
LA –
M
P = Sourcing
N = Sinking
24V DC
SELV/PELV-listed
+
power supply
–
138
You can use the safety output modules in Bipolar mode or Sourcing mode.

Bipolar Mode

The information in this table applies to all 5069-OBV8S and 5069-OBV8SK Bipolar mode wiring
diagrams.
Safety Output 0 P
Safety Output 0 N
Safety Output 1 P
Safety Output 1 N
Safety Output 2 P
Safety Output 2 N
Safety Output 3 P
Safety Output 3 N
Safety Output 4 P
Safety Output 4 N
Safety Output 5 P
Safety Output 5 N
Safety Output 6 P
Safety Output 6 N
Safety Output 7 P
Safety Output 7 N
LA +
LA –
Rockwell Automation Publication 5069-UM004G-EN-P - June 2024
Description
When the module is wired as shown, and the listed requirements are met in the project
of the safety controller, it is suitable for applications that are rated up to, and including,
Category 4 as defined in ISO 13849-1.
To achieve that suitability rating, diagnostic testing and monitoring of the safety
function can be required. One diagnostic test method is to configure the safety output
channel for Safety Pulse Test to test the circuit for short circuits to 24V DC.
• We strongly recommend that you connect separate shielded cables to the P terminal
and the N terminal to reduce the possibility of a wire short between the terminals. If a
wire-short fault is detected across the PN pair, the module outputs turn off, but the
actuator that is connected to the pair remains on.
• Configure the application so that No Load and Overload conditions are only detectable
at the P terminal.
For Category 4 applications, if the output is off and your application remains in a safe
for a prolonged duration, we recommend that you take one of these actions.
• Apply output monitoring at the actuator. The monitoring can be direct or indirect.
• Limit the safe state to no more than 24 hours.
• Conduct a functional test if the safe state dwell time increases.
Actuator LA Power - In this wiring configuration, you must connect the LA+ terminal to
an SELV/PELV-listed power supply. The LA+ and LA- terminals on the actuator must be
connected to the same power supply as the LA+ and LA- terminals on the module.