ABB SACO 148D4 Control Data Communicator & Event Annunciator

ABB SACO 148D4 Control Data Communicator & Event Annunciator Supplier, Exporter in India

ABB SACO 148D4 for Substation Alarm, Event Reporting & Communication

ABB SACO 148D4 is a combined control data communicator and event annunciator used in older ABB SPACOM-based substation and power plant systems. It works as the master unit between protection relays, annunciators and other SPACOM devices and a higher-level control, monitoring or reporting system.

Along with communication, SACO 148D4 can handle alarm and signalling contacts from field equipment. A fully equipped unit provides 48 on/off alarm channels, while smaller configurations were supplied with fewer annunciator modules. Alarm events can be time-stamped, displayed locally, sent to a printer or transferred to a supervisory system.

Today, requirements are mainly for ABB SACO 148D4 replacement units, spare communicator modules, existing SPACOM system maintenance or matching equipment for older substation panels. Since SACO 148D4 is no longer an active ABB product, the complete model and order number should be checked before quotation.

ABB SACO 148D4 Models and Configurations

ABB supplied the SACO 148D4 in several configurations depending on how many annunciator modules were required.

ABB SACO 148D4-0

• Includes SACO 100M communicator
• No SACO 16D2 annunciator module
• Order numbers: RS 821 480-AA / RS 821 480-BA

This version was intended mainly for data communication where local annunciation channels were not required.

ABB SACO 148D4-1

• SACO 100M communicator
• 1 × SACO 16D2 annunciator module
• 16 alarm channels
• Order numbers: RS 821 481-AA / RS 821 481-BA

ABB SACO 148D4-2

• SACO 100M communicator
• 2 × SACO 16D2 annunciator modules
• 32 alarm channels
• Order numbers: RS 821 482-AA / RS 821 482-BA

ABB SACO 148D4

Fully equipped version:

• SACO 100M communicator
• 3 × SACO 16D2 annunciator modules
• 48 alarm channels
• Order numbers: RS 821 483-AA / RS 821 483-BA

ABB’s ordering documentation confirms these four configurations and their associated order numbers.

Technical Specifications

• Manufacturer: ABB
• Product: Control data communicator with event annunciator
• Model: SACO 148D4
• Product family: SPACOM / SACO
• Product status: Legacy, not active since 2009
• Communicator module: SACO 100M
• Maximum built-in alarm channels: 48 on/off channels
• Annunciator modules: Up to 3 × SACO 16D2
• Field contact input: Normally open or normally closed
• Internal field contact voltage: 48 V DC ±20%
• Field contact loop current: Maximum 4 mA
• Selectable input/reset delays: 5 ms, 20 ms, 100 ms, 1 s, 20 s, 60 s or 160 s
• Event scanning resolution: Better than 10 ms
• Group alarm outputs: 10 relays
• Audible alarm output: 1 relay
• Self-supervision output: 1 relay
• Built-in output relay arrangement: 12 relays
• Additional relay expansion: SACO 128R4
• Additional signal grouping: SACO 64C5
• Maximum annunciator system capacity: 560 channels
• SPA bus connection: Plastic fibre, glass fibre or electrical RS-485
• Output interfaces: 2 × RS-232 or 1 × RS-232 + 1 × 20 mA current loop
• Serial data coding: ASCII
• Selectable data transfer speed: 4800 or 9600 baud
• Real-time clock accuracy: Approximately 2 seconds/day
• Local and remote control inputs: Available
• Time synchronisation input: Available
• Rated relay contact voltage: 250 V AC
• Rated relay contact current: 3 A
• Auxiliary supply module options: SWSM 220A48 or SWSM 220A220
• Power consumption: Approximately 20 W
• Operating temperature: -10°C to +55°C
• Storage temperature: -40°C to +70°C
• Degree of protection when panel mounted: IP40
• Mounting: Standard 19-inch subrack / panel mounting
• Approximate weight: 8.1 kg

ABB’s product guide documents these communication, alarm-channel, output, auxiliary-supply and environmental specifications.

Features

• Communication and annunciation in one unit: SACO 148D4 handles both field alarm supervision and communication with higher-level systems.
• Up to 48 alarm channels: The fully equipped version uses three 16-channel annunciator modules.
• Event sequence recording: Incoming events are arranged chronologically and provided with time information before being displayed, printed or transferred.
• Local event reporting: A printer or another output device can be connected for local event records.
• SPA bus communication: Allows connection with ABB SPACOM protection relays, control units and annunciators.
• RS-232 and RS-485 interfaces: Supports integration with older control and supervisory systems.
• Fibre-optic communication: Plastic or glass-fibre SPA bus connections can be used with suitable SPA-ZC modules.
• Large system capacity: The annunciator arrangement can be expanded up to 560 channels.
• Alarm grouping: Ten built-in group alarm relays are available, with further expansion possible.
• Additional relay outputs: SACO 128R4 can be added where more group alarm, parallel lamp or contact follower outputs are required.
• Signal grouping option: SACO 64C5 can be used where additional alarm grouping is needed.
• Self-supervision: Hardware, software and auxiliary supply circuits are continuously monitored.
• Dual auxiliary supply arrangement: Different power supply modules were available for installations using low-voltage DC or higher AC/DC control supplies.

ABB SACO 148D4 Communication

Communication is one of the main reasons SACO 148D4 is different from a standard alarm annunciator.

The SACO 100M section manages information between SPACOM devices and a higher-level system. Information can include events, measured values, status information, acknowledge/reset commands and other control data.

The unit provides:

• Two RS-232 interfaces, or
• One RS-232 interface and one 20 mA current loop
• RS-485 for SPA bus communication
• Fibre-optic SPA bus connection through suitable SPA-ZC modules
• Local printer/event reporting connection.
• Communication with remote control or supervisory systems

With suitable SPA-ZC equipment, several fibre-optic loops can also be connected to the SACO 148D4.

ABB SACO 148D4 Auxiliary Supply Options

ABB supplied the unit with two main power-module arrangements:

SWSM 220A48

• Supply 1: 19–70 V DC
• Supply 2: 80–265 V AC/DC

SWSM 220A220

• Supply 1: 80–265 V DC
• Supply 2: 80–265 V AC/DC

The last letters of the SACO 148D4 order number indicate the supply arrangement:

• AA: 80–265 V DC + 80–265 V AC/DC
• BA: 19–70 V DC + 80–265 V AC/DC

This is important when sourcing an ABB SACO 148D4 replacement, as a matching order number and auxiliary supply arrangement should be checked against the existing installation.

Applications

SACO 148D4 was used in:

• Electrical substations
• Power generation plants
• SPACOM protection systems
• Substation control rooms
• Transformer substations
• Medium-voltage switchgear systems
• Industrial power distribution
• Utility control systems
• Generator protection and control systems
• Process plants
• Oil and gas installations
• Petrochemical plants
• Steel plants
• Cement plants
• Mining installations
• Central alarm systems
• Event sequence reporting systems
• Existing ABB SPACOM modernisation projects
• Legacy ABB control-system maintenance

ABB specifically describes SACO 148D4 as the master unit for coordinated SPACOM secondary equipment in substations, power plants and similar installations.

ABB SACO 148D4 Replacement Requirements

Since SACO 148D4 has been inactive since 2009, most requirements today are linked to installed systems rather than new installations.

For an ABB SACO 148D4 replacement or spare requirement, it is better to provide:

• Exact model: SACO 148D4-0, 148D4-1, 148D4-2 or SACO 148D4
• Complete ABB order number
• Existing nameplate photograph
• Number of alarm channels
• Auxiliary supply voltages
• SACO 100M details, if available
• Existing SPA bus arrangement
• RS-232 / RS-485 communication requirement
• SPA-ZC interface module details
• Required quantity
• End-user/project country

The exact information matters because an RS 821 480, RS 821 481, RS 821 482 and RS 821 483 unit represents a different hardware configuration.

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For an ABB SACO 148D4 supplier in India, SACO 148D4-1 replacement, SACO 148D4-2 spare, RS 821 483-AA / BA requirement or ABB SPACOM annunciator export enquiry, share the complete model, order number, auxiliary supply, quantity and destination country for quotation.