Safety Outputs; Auxiliary & Warning Outputs - Omron OS32C Series User Manual

Operating States & Output Modes

Safety Outputs

This product is designed for use on a 24 VDC, negative ground (protective earth) electrical system only. Never
connect the OS32C to a positive ground (protective earth) system. With a positive ground (protective earth)
wiring scheme, certain simultaneous shorts of both safety outputs may not be detected and the guarded
machine may not stop resulting in severe injury to the operator.
To use this product for a category 3 safety system, both of the two safety outputs must be used to build the
safety system controls circuit. Configuring the safety control system with only one safety output may result in
serious injuries due to output circuit failure.
The OS32C provides two PNP safety outputs, each capable of sourcing 250 mA @ 24 VDC. These two
outputs can be connected to the machine's primary control element, or may be used to connect to a control
device. The safety outputs will turn on when the safety zone is clear, and the guarded machine can operate.
The OS32C will turn off its safety outputs when it detects an intrusion in the safety zone, and the guarded
machine stops. In addition, the OS32C will test the safety outputs by switching the outputs off for <600s
every ~5 min. See Fig. 2-1 below.
OSSD A
OSSD B
Fig. 2-1 OSSD Test Pulses
Auxiliary & Warning Outputs
The OS32C has a non-safety auxiliary output and a non-safety warning output, max.100mA @ 24VDC. Both
the output type (PNP/NPN) and polarity (Active ON/Active OFF) can be configured. These outputs can be
configured to operate in one of the following modes:
• Follow OSSD indication: output will turn ON when the machine stops.
• Indicate FAULT: output will turn ON when a fault has occurred.
• Warning Zone 1 infringed: output will turn ON when an intrusion is detected in warning zone 1.
• Warning Zone 2 infringed: output will turn ON when an intrusion is detected in warning zone 2.
• Window Contamination Warning: output will turn ON when contamination of the scan window reaches a
certain level.
OS32C
20
User's Manual
~ 5 minutes
<600µs
<600µs
~ 2.5minutes