Category: ABB

Cable Compartments

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.

Functional separation

The switchboard is divided into vertical and horizontal compartments thus separating different functional

areas.

As even power cabling and control wiring are strictly separated within MNS iS, the switch-board is

structured as follows:

1. Equipment compartment

All equipment, including the standard motor starter modules MStart or feeder modules MFeed in

withdrawable design, is situated therein.

The compartment can be divided in horizontal and vertical sub compartments.

2. Control cable compartment

Contains the integrated control devices MControl, control cables and terminals.

3. Power cable compartment

Contains power cables and connection units.

4. Busbar compartment

Contains the MNS main busbar system and distribution bars. The distribution bars are embedded

in the Multifunction Separation Wall (MFW) which is located between the Equipment compartment and

the Busbar compartment

Improper use

It is prohibited to use the device for the following purposes:

• As a climbing aid, e.g., for mounting purposes

• As a support for external loads, e.g., as a support for pipes, etc.

• Adding material, e.g., by painting over the name plate or welding/soldering on parts

• Removing material, e.g., by drilling the housing.

Repairs, alterations, and enhancements, or the installation of replacement parts, are only permissible as far as these are described in the manual.

Approval by ABB must be requested for any activities beyond this scope. Repairs performed by ABB-authorized centers are excluded from this.

Technical limit values

The device is designed for use exclusively within the values stated on the name plates and within the technical limit values specified on the data sheets.

The following technical limit values must be observed:

• The Maximum Working Pressure may not be exceeded.

• The Maximum ambient operating temperature may not be exceeded.

• The Maximum process temperature may not be exceeded.

• The housing protection type must be observed.

Warranty provisions

Using the device in a manner that does not fall within the scope of its intended use, disregarding this manual,

using under-qualified personnel, or making unauthorized alterations, releases the manufacturer from any liability for any resulting damage.

This makes the manufacturer’s warranty null and void.

Mounting position

Rotations in the plane of the diaphragm have a negligible

effect. A tilt from the vertical of up to 90° causes a zero

point shift of up to 0.5 kPa (5 mbar, 2 inH2O), which can be

corrected by making an appropriate zero position

adjustment. There is no effect on the measuring span.

In applications where a dynamic inclined installation is

required (e.g. naval applications with maximum vessel

inclination of +/-22.5°), the maximum error can be up to 3

mbar for 266DSH

Such error might be resulting in a deviation from the

standard accuracy with percentual magnitude depending

on the range of the selected device.

In case of non-dynamic inclined installations, this effect

can be eliminated by performing a zero calibration in the field.

Please contact ABB to assess more in details on the installation effects

Static pressure

(zero errors can be calibrated out at line pressure)

per 0.5 MPa, 5 bar or 72.5 psi (sensor A)

per 2 MPa, 20 bar or 290 psi (sensor B)

per 3.5 MPa, 35 bar or 500 psi (sensor E)

per 7 MPa, 70 bar or 1015 psi (sensor F to S)

Model 266DSH standard static

• zero error: ±0.05 % of URL for sensor F to S

±0.08 % of URL for sensor A, B and E

• span error: ±0.08 % of reading.

Model 266DSH flange mounted

per 2 MPa, 20 bar or 290 psi

• zero error: ±0.05 % of URL for sensor F to P

±0.08 % of URL for sensor E

span error: ±0.08 % of reading.

Data recorder (optional)

The data recorder can log analog inputs, digital inputs, and digital out

puts. The recorder has the following settings:

•  number of samples (6-72)

•  recording period (5-60 sec)

•  pre-trigger (0-100%)

•  trigger event (start for recorder)

•  trigger event (stop for recorder)

The recording period depends on the number of samples. The recorder

can be set with the pre-trigger to record event data even before the

event happens.

Stopping the recorder can be triggered by either an event or a preset

time. For easier management and trouble-shooting, event data can be

transferred and analyzed. The data transfer is made by a link through a

plug on the front panel of the SYMAP® device.

Diagnostics and monitoring

SYMAP® provides various diagnostic and monitoring functions:

•  all memories (ROMs, RAMs, EEPROMs)

•  all analog reference voltages

•  automated test sequences

•  control power ON/OFF

•  binary input and output for control logic

Detailed protection function history

SYMAP® automatically collects and stores all activated events related to

protection functions with a time stamp. A maximum of 1.000 protection

function events can be stored. In case of overflow, overwriting follows

the FIFO principle.

Event history

SYMAP® automatically collects and stores all activated events with their

number, title, appearing and disappearing status and a time stamp. A

maximum of 5.000 events can be stored. In case of overflow, overwriting

follows the FIFO principle. The event history can be transferred to a PC

and evaluated by a PC tool. Regardless of power supply, the data store is permanent.

The following supervising systems are offered by SYMAP®:

•  self-diagnostics

•  inputs of analog data (auxiliary circuit)

•  status and position of switching device and motor’s on-off status

•  supervising supply of trip coil

•  gas pressure

• temperature inside panel

•  each operating life of breaker (hours)

Communication

SYMAP® can serve as the main bay controller for the power management

system or substation system. The following list shows the station system

items available through  SYMAP®:

• remote supervision

•  remote control

•  remote parameter setting

•  central registration of measured and calculated values

•  central event logging

•  central fault recording, analysis and logging

•  plant power management

Communication interfaces

SYMAP® provides communication ports available with the following

interfaces and protocols:

•  1 x RS 232 on the front panel for programming and data output

•  1 x RS 422/485 port

• 1 x PROFIBUS DP (RS485 or fiber optic port)

•  MODBUS RTU

•  MODBUS TCP (RJ45 or fiber optic port)

•  IEC 60870-5-103 (RS485 or fiber optic port)

•  IEC 61850 (RJ45 or fiber optic port)

•  CANBUS 1 (communication between devices as power management

system, breaker control interlocking)

•  CANBUS 2 (engine control interface: MTU, VOLVO, DEUTZ etc.)

Features and interfaces

Terminal connections

All connections to SYMAP® are made with terminal plugs on the back of

the device, allowing the device to be exchanged easily.

Analog input for measurement

SYMAP® provides inputs for analog sensors at the rear of the device. If

terminal plugs for the CTs are disconnected, the circuits will be linked

automatically so there is no disconnection in the CT circuit loops.

A total of 17 analog inputs for current and voltage transformers are used

for protection functions. The following list shows possible connections

for current transformers (CT) and potential transformers (PT):

•  3 x CT inputs for feeder current

•  1 x CT input for ground current

•  3 x PT inputs for feeder voltage

•  3 x PT inputs for 1st bus bar voltage

•  3 x PT inputs for 2nd bus bar voltage

•  1 x PT input for ground voltage

The hotkey »Alarm« displays

all active alarms, event log and blockings. »Process« shows all process data such as the synchro

nization display, motor thermal indication and a counter of breaker operations. Under »Breaker

Control«, up to five breakers can be accessed and controlled.

When programming breaker controls the user has access to various layout configurations via a

library. Programmed blockings remain active when manual control of the breaker is used. Each of

the highlighted breakers in the LCD can be further controlled by the keys »O« and »I«.

For security, access to SYMAP®’s parameter and breaker control data is protected by a code system,

accessed by a password.