R-K Electronics, Inc.

Operation

The PBO-MRTU monitors 21 single and three phase voltages and tolerances pre-programmed into the PBO and communicates all of the voltages, set-points and faults via ModbusRTU. All voltages and setting address are available as read/write. There is no output relay in the PBO-MRTU.

 

The Modbus addresses are downloadable at www.rke.com/downloads

​

The LED operations are as follows:

Continuous green LED – The PBO-MRTU has power

Green Flashing LED – The PBO is detecting communications on the Modbus network

Red Flashing LED – The PBO-MRTU is transmitting data on the Modbus network

​

Specifications

Electrical

Line Voltage: 115 to 277VAC, 1Ø
   200 to 600VAC, 3Ø

Supply Voltage: 12 to 24 VAC/VDC

Frequency: 45 to 65 Hz

Over/Under Voltage: 3% to 15%

Phase Imbalance: 3% to 15%

Phase Rotation: A - B - C

Time Delays: 

    Trip Time: 1 Sec. to 10 Sec. @ ±20%

    Re-Start: 1 Sec. to 5 Min. & Manual Reset

LED:

    Power: Continuous Green

    Transmitting Data: Flashing Red 

    Communications on Network: Flashing Green

Power Consumption: 1VA

​

Physical

Mounting: Surface or DIN

Termination: Pluggable Terminal Block

Packaging: Epoxy Fill

Weight: 5 Ounces

​