284 Rockwell Automation Publication 5069-UM004A-EN-P - April 2019
Appendix C Application and Wiring Examples for Safety Modules
When the module is wired as shown, it is suitable for applications that are rated
up to, and including, Category 4 as defined in ISO 13849-1.
For Cat.4 applications, if your application remains in safe state, that is, the
output is off, for a prolonged duration, we recommend that you take one of the
following 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 functional test if safe state dwell time increases.
5069-OBV8S
OUTPUT
0
7
6
5
4
3
2
1
17
16
15
14
13
12
11
10
9
8
Connection Pairs
When you use dual-channel sourcing wiring on the
5069-OBV8S or 5069-OBV8SK module, you must connect the
devices to dual-channel connection pairs. For example, the
devices are connected to channels 4 and 5 because they are a
connection pair. The following channels are dual-channel
connection pairs:
• Channels 0 and 1 (shown)
• Channels 2 and 3
• Channels 4 and 5
• Channels 6 and 7
K2
M
LA –
Safety Output 0 P (Sourcing)
LA +
LA –
Safety Output 3 P (Sourcing)
Safety Output 4 P (Sourcing)
Safety Output 4 N (Sinking)
Safety Output 1 N (Sinking)
Safety Output 5 P (Sourcing)
Safety Output 5 N (Sinking)
Safety Output 6 P (Sourcing)
Safety Output 6 N (Sinking)
Safety Output 7 P (Sourcing)
Safety Output 7 N (Sinking)
Safety Output 3 N (Sinking)
Safety Output 2 N (Sinking)
Safety Output 2 P (Sourcing)
Safety Output 1 P (Sourcing)
Safety Output 0 N (Sinking)
K1
Channel Connections
This wiring example shows connections to Safety Output 0 P
and Safety Output 1P. You are not limited to using channels 0
and 1 in this mode. You can use all channel pairs as
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. Therefore, you must install them on an SA Power
bus that uses DC power.
• If you install modules in a system that use AC SA power and
DC SA power, you must install them on separate SA power
buses.
• You use a 5069-FPD field potential distributor to establish a
new SA Power bus in a system. SA Power buses are isolated
from each other. To keep the modules on separate SA Power
buses, complete the following steps.
1. Install the modules that use one type of SA power, for
example DC, to the right of the adapter or controller, that
is, the first SA Power bus.
2. Install the 5069-FPD field potential distributor to
establish a second SA Power bus.
3. Install the modules that use the other type of SA power,
for example AC, on the second SA Power bus.
•We strongly recommend that, if you have a direct
connection between the safety output module and an input
module and those modules are powered by separate power
supplies, that you connect SA- and LA- together. This practice
helps to eliminate grounding float from disrupting
diagnostics.
24V DC
SELV/PELV-listed
power supply
–
+
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