ABB MNS iS Motor Control Center MNS iS Interface Manual MLink

Introduction
The system interface MLink is an industrial PC equipped with interface cards and ports required
for communication internally to MControl and externally to process control systems.

One MLink can communicate internally with up to 60 MControl. If more than 60 MControl are
required, then additional MLinks have to be used.

The configuration of MLink depends on the selected communication protocol to the DCS.
Following communication interface protocols are available:
· PROFIBUS DP (-V0) and PROFIBUS DP-V1
· MODBUS RTU / TCP
· PROFINET IO

System functions such as MLink web interface (MView), OPC connectivity and time stamp are
possible with all MLink types.
For communication to MControl a dedicated interface plug (switchgear bus connector) has to be
used dependent on system configuration (redundant, non redundant system).

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Access to integrated components such as electronic protection relays on standard switchgear is usually not possible if the module is energized.
As an outstanding attribute MNS iS switchgear provides separate compartments, one for power cables on the right hand and another for control cables on the left hand. The two cable compart-ments can be provided with different key locks in order to assure specific access rights.
MNS iS motor/feeder cables are housed in their own power cable compartment completely isol-ated from any control equipment or wiring. The cubicle arrangements are configured suitable for front cable access.
The power cable compartment can be provided with cable entry from the top or bottom of the cubicle.
The control cables have their own control cable compartment completely segregated from the power compartments.
This control compartment also houses the integrated motor control units MControl and other associated control equipment.
The control wiring can enter from the top or bottom as required for the project. External signals (such as pushbuttons, indicators etc.) connect directly to the MControl main board.

Fixed Module Design

For specific applications MStart is offered in fixed design. The module size is 85E (full height of the switchboard).
Fixed modules are utilised for motor starting solutions where a rating in excess of 250kW is required for DOL starting and 160kW for Star Delta.
The motor starter components such as the switching device, contactor and shunt modules are mounted in the main compartment.
The MControl and field I/O connections are located either in the upper compartment or lower compartment, dependant upon the cable entry requirements. For example, when cable entry is from below the MControl is located in the upper compartment and vice versa.

1TGE120010R100  MConnect +86-18144100983

MConnect serves for MNS iS communication to ABB SACE circuit breakers Emax, T7 and X1.
MConnect connects to their programmable release units (PR) and supports the following functions:
 Reading of circuit breakers status and measuring values and
 Cont
rol of circuit breakers
The following hardware versions are available:
MConnect basic version containing the main

board with:
7DI
4 relay outputs
MConnect options like:
4DI2DO or 7DI board for additional digital signals
AIAO or 2AI board for analog signals
and combinations of DIO and AIO cards

The MControl is a powerful and modular platform for communication, control, data processing and protection functions. The main control board is based on a microprocessor platform and includes memory for application and process data and a fast communication interface to MLink as well as an interface to the MStart / MFeed.
The module is fully scalable and offers multiple solutions for digital and analogue I/O together with addition relay, measurement and communication cards for specific applications