Main Title: ABB BC820K02 CEX-Bus Interconnection Unit (3BSE071500R1)

Product Overview

The 3BSE071500R1 is also known as the ABB BC820K02 CEX-Bus Interconnection Unit. Therefore, it extends onboard communication ports with communication interface units. In addition, the BC820K02 allows redundant communication interfaces on the CEX-Bus. As a result, it improves system availability for critical applications. Moreover, this unit sections the CEX-Bus into two independent segments. Finally, the 3BSE071500R1 supports distances up to 200 meters between segments.

Compatible Controllers

The BC820K02 works with specific ABB controller models for proper integration. Specifically, it supports PM858, PM862, and PM866 controllers. Furthermore, PM866 requires PR.F or later (PR:H or later for PM866K01). Also, the 3BSE071500R1 supports PM866A controllers as well. Therefore, check your controller version before ordering the BC820K02.

Power Supply Specifications

The BC820K02 receives power from the processor unit via the CEX-Bus. Additionally, it supports redundant power through an external power connector. Specifically, power supply inputs are designated L+ and L- for 24 V nominal. Furthermore, voltage variation range is 19.2 V DC to 30 V DC. Notably, typical power consumption is 120 mA at +24 V. Also, maximum consumption reaches 200 mA at +24 V. Therefore, the 3BSE071500R1 dissipates 2.9 W typical.

CEX-Bus Extension Capabilities

The BC820K02 transmits the RCU-Link for system synchronization. Specifically, it extends the CEX-Bus and RCU-Link cable length up to 200 meters. Furthermore, the number of CEX-Bus interfaces is limited to 6 with each BC820. Also, the 3BSE071500R1 sections the bus into two independent segments. Notably, this improves availability in systems with redundant communication interfaces. Therefore, the BC820K02 suits large distributed control systems.

RCU Control Link Cable Requirements

The BC820K02 requires specific RCU Control Link cables for proper operation. Specifically, you need a modular jack RJ45 shielded twisted pair crossover cable. Furthermore, the cable must have all four pairs crossed for correct signaling. Also, use EIA/TIA-568 standard crossover T568A to T568B wiring. Notably, maximum cable length is 200 meters for the RCU Control Link. Therefore, the 3BSE071500R1 does not include these cables in the kit.

RCU Data Link Optical Cable Requirements

The BC820K02 also requires optical cables for RCU Data Link connections. Specifically, the optical interconnection uses LC Duplex optical connector interface. Furthermore, this conforms to ANSI TIA/EIA60-10 (FOCIS 10A) standard. Also, the required optical cable type is 50/125μm OM3 fiber. Notably, maximum cable length is 200 meters for the optical link. Therefore, you must purchase these cables separately for the 3BSE071500R1.

Hot Swap and Online Replacement Features

The BC820K02 supports hot swap functionality for easy maintenance. Specifically, you can replace communication modules without system shutdown. Furthermore, the unit supports online replacement of the CPU for high availability. Also, the 3BSE071500R1 allows changes during normal operation. Notably, this reduces downtime significantly for critical processes. Therefore, the BC820K02 suits applications requiring continuous operation.

Environmental and Certification Specifications

The BC820K02 meets strict environmental standards for industrial use. Specifically, operating temperature ranges from +5 to +55 °C (+41 to +131 °F). Furthermore, storage temperature spans -40 to +70 °C (-40 to +158 °F). Also, relative humidity tolerance is 5 to 95 percent non-condensing. Notably, protection class is IP20 according to EN 60529 and IEC 529. Therefore, the 3BSE071500R1 works reliably in factory environments.

Safety and Hazardous Location Certifications

The BC820K02 carries multiple safety certifications for global use. Specifically, it holds cULus Class 1 Zone 2 hazardous location approval. Furthermore, ratings include AEx nA IIC T4 and Ex nA IIC T4Gc X. Also, electrical safety follows UL 61010-1 and UL 61010-2-201. Notably, marine certificates include ABS, BV, DNV-GL, and LR. Therefore, the 3BSE071500R1 suits shipboard and offshore applications.

Environmental Compliance

The BC820K02 meets environmental regulations for responsible manufacturing. Specifically, RoHS compliance follows EN 50581:2012 for hazardous substance restrictions. Furthermore, WEEE compliance follows DIRECTIVE/2012/19/EU for end-of-life recycling. Also, the 3BSE071500R1 carries CE Mark for European market access. Therefore, this unit supports sustainable industrial automation practices.

Physical Dimensions and Weight

The BC820K02 requires adequate cabinet space for proper installation. Specifically, width measures 59 mm (2.9 inches) for slim mounting. Furthermore, height is 185 mm (7.3 inches) including the base. Also, depth measures 127.5 mm (5.0 inches) for cabinet clearance. Notably, the 3BSE071500R1 package weighs 1.4 kg (3.1 lbs) including base.

Installation Guidelines

First, mount the BC820K02 on a DIN rail in a suitable cabinet. Second, connect the unit to the processor via the CEX-Bus connector. Third, attach external power supply to L+ and L- terminals if needed. Fourth, connect RCU Control Link using shielded crossover RJ45 cables. Fifth, connect RCU Data Link using 50/125μm OM3 fiber with LC Duplex. Note, the 3BSE071500R1 does not include cables in the package.

Package Contents

• One 3BSE071500R1 ABB BC820K02 CEX-Bus Interconnection Unit

• One product documentation quick start guide

• One mounting instruction sheet

• One terminal label strip

Frequently Asked Questions (FAQ)

1. Which ABB controllers work with the BC820K02?
The BC820K02 works with PM858, PM862, PM866 (PR.F or later), and PM866A. Therefore, check your controller version before purchasing this unit.

2. Does the BC820K02 support hot swap functionality?
Yes, the 3BSE071500R1 fully supports hot swap for communication modules. Furthermore, it supports online replacement of the CPU without system shutdown.

3. What is the maximum distance for CEX-Bus extension?
The BC820K02 extends the CEX-Bus and RCU-Link cable length up to 200 meters. Thus, it suits large distributed control system layouts.

4. Does the BC820K02 kit include communication cables?
No, the 3BSE071500R1 does not include RCU Control Link or RCU Data Link cables. Therefore, you must purchase suitable cables separately for your installation.

5. What power supply does the BC820K02 require?
The BC820K02 requires 24 V nominal (19.2 to 30 V DC range). Specifically, typical power consumption is 120 mA at +24 V.

6. What hazardous location certifications does the BC820K02 hold?
The 3BSE071500R1 holds cULus Class 1 Zone 2 with AEx nA IIC T4 rating. Also, it carries Ex nA IIC T4Gc X for international hazardous areas.