Power Transmission Engineering Magazine
www.powertransmission.com/articles/3147

Omron’s STI Modules Available with AC Voltage Input

August 17, 2007

The RM-2AC-IP is the latest addition to Omron Scientific  Technologies, Inc.'s RM-2 family of resource modules.  Three models are now available for DC or AC input power for operation in a  variety of environments. 

The new RM-2AC-IP features IP65 protection with a rugged metal chassis for harsh applications.  The RM-2 features an IP20 rated 100mm DIN enclosure, while the RM-2AC features an IP20 rated 150mm DIN enclosure.

RM-2 resource modules provide a centralized location for all connections and convert the output of those devices to force-guided relay outputs. The RM-2AC and RM-2AC-IP include a power supply and pair of safety relays, making them a suitable companion and a single point for wiring Omron STI's MS4800, MS4600, OF4600, PA4600, F3SJ and OS3101 safety devices. These resource modules provide connection points for all safety device functions, and serve as a central point for terminating
all signals to and from a safety device, including EDM (external device monitoring).

Two N/O safety relay outputs and two N/C auxiliary relay outputs are provided, and, depending on the load rating of the device being switched by the relay contacts, these force-guided safety relay outputs can be used for External Device Monitoring (EDME). Removable terminal blocks facilitate installation and servicing.