ABB Multi-function Controller Module CMC70-2 H&B Contronic

ABB Multi-function Controller Module CMC70-2 H&B Contronic

The ABB Multi-function Controller Module CMC70-2 H&B Contronic is a multi-function control module from ABB in conjunction with Hartmann & Braun. The following is a description of the module:

Basic information: Model number CMC70-2, product number 3bdh000557r1, origin is Germany, shipping to the United States of America, Webster, New York, dimensions of about 8.0 inches × 3.0 inches × 12.0 inches, weighing about 2.1 kg.

Functional characteristics: as a multifunctional control module, it can achieve a variety of control functions, can receive and process a variety of input signals, such as analog input, digital input, etc., and according to the preset logic and procedures for complex arithmetic and judgement, and then output precise control signals to control the action of the actuator, so as to achieve the precise control of the industrial process and automation management.

Applications: Widely used in the field of industrial automation, can be used in chemical, pharmaceutical, food and beverage and other process control industries, precise control of temperature, pressure, flow and other parameters; also applies to automotive manufacturing, electronics manufacturing and other discrete manufacturing industries, co-ordination and control of production lines on a variety of equipment operation and action.

System compatibility: the module belongs to the ABB H&B Contronic and ABB H&B Melody/Contronic S series, with the same series of other modules and equipment with good compatibility, can be easily integrated into the existing ABB control system, to achieve system expansion and upgrading.

FEATURE

• Low-impedance busbar protection 

• Stub and T-zone protection 

• High functional reliability due to two independent measurement criteria: 

- stabilized differential current algorithm 

- directional current comparison algorithm 

• Phase-by-phase measurement 

• Reduced CT performance requirements 

• High through-fault stability even in case of  CT saturation 

• Full solid-state busbar replica 

• No switching of CT circuits 

• Only one hardware version for  

- 1 and 5 A rated currents 

- all auxiliary supply voltages between  48 V DC and 250 V DC 

- nominal frequencies of 50, 60 and  16.7 Hz 

• Short tripping times independent of the  plant’s size or configuration 

• Centralized layout: Installation of hardware  in one or several cubicles 

• Distributed layout: Bay units distributed  and, in the case of location close to the  feeders, with short connections to CTs, isolators, circuit breakers, etc. 

• Connections between bay units and central  unit by fiber-optic cables 

- maximum permissible length 1200 m  

- for distributed and centralized layout 

• fiber-optic connections mean interference proof data transfer even close to HV power  cables 

• Replacement of existing busbar protection  schemes can be accomplished without restrictions (centralized layout) in the case of  substation extensions e.g. by a mixture of  centralized and distributed layout 

• Easily extensible