UNITROL 1000
ABB
Refurbished
| Manufacturer | ABB (ABB Switzerland Ltd.) |
| Product Family | UNITROL® 1000 Excitation System |
| Model (front panel) | UNITROL® 1000 |
| Product Type | Automatic Voltage Regulator (AVR) / Generator Excitation Controller |
| Probable Variant | UNITROL 1000-15 (front panel with 4-key keypad and illuminated display) – Not verified, nameplate not visible in the supplied photograph |
| Order / Part Number | Not clearly visible in the supplied photograph |
| Serial Number | Not clearly visible in the supplied photograph |
| Front Panel Interfaces | 4-key keypad (↑, ↓, OK, ESC), LCD display, 9-pin serial port, EIA-485 terminals |
| Terminal Groups (front label) | UM, UNET, Ie, UPWR, UAUX, IM2, AI, AO, DI/DIO, EIA-485 |
| Quantity in photo | 3 units |
| Condition | Refurbished |
| Supplier | SM MARINE SERVICE™, Chattogram, Bangladesh |
The ABB UNITROL 1000 is a compact digital automatic voltage regulator (AVR) used to control the excitation of synchronous generators and motors. It is widely installed on ships as the AVR of main and auxiliary diesel generators, shaft generators and emergency generators, as well as in small hydro, diesel and industrial power plants. SM MARINE SERVICE™ supplies ABB UNITROL 1000 units and related excitation spare parts to ship owners, ship managers and power plant operators worldwide. Visit https://www.smmarineservice.com/ for more marine automation and navigation equipment.
The UNITROL 1000 measures the generator terminal voltage and current, compares it with the setpoint and controls the DC field (excitation) current of the generator or of its brushless exciter. In this way it keeps the generator voltage stable when the load changes and shares reactive power correctly when several generators run in parallel. ABB documentation describes the UNITROL 1000-15 as a compact regulator for synchronous machines with up to 15 A exciter current; together with the UNITROL 1000-PM40 power module it forms the UNITROL 1000-40 for field currents up to 40 A.
Three ABB UNITROL 1000 automatic voltage regulators (AVR) – SM MARINE SERVICE™
Values below are ABB published data for the UNITROL 1000-15 / 1000-40. The exact variant of the pictured units must be confirmed from the nameplate.
| Excitation current UNITROL 1000-15 | 15 A DC continuous; 20 A DC for 4 min; 30 A DC for 10 s |
| Excitation current UNITROL 1000-40 (with PM40) | 40 A DC continuous (3-phase AC or DC supply); 50 A for 4 min; 80 A for 10 s |
| Power supply UPWR | 3-phase AC 9–250 V; 1-phase AC 50–250 V; DC 18–300 V; 40–600 Hz |
| Auxiliary supply UAUX | 3-phase AC 9–250 V; 1-phase AC 50–250 V; DC 18–300 V; max. 25 W |
| Generator voltage UM | 3-phase, max. 250 V, 10–100 Hz |
| Network voltage UNET | 1-phase, max. 150 V |
| Digital I/O | 4 digital inputs, 4 digital outputs (redefinable as inputs) |
| Analog I/O | 3 analog inputs ±10 V, 2 analog outputs |
| Communication | RS-232 (PC / CMT 1000), RS-485 (paralleling, Modbus RTU), CAN bus (PM40) |
| Regulation accuracy | < 0.1% |
| Operating temperature | 0 to 60 °C (1000-15 derated by 1 A per K above 50 °C) |
| Protection class | IP20 |
| Weight | UNITROL 1000-15 approx. 5 kg; PM40 approx. 6.7 kg |
| EMC | EN 61000-6-2, EN 61000-6-4 |
Customers often search for a single board or order code when one UNITROL unit fails. The numbers below were found in ABB documentation or on supplier listings. Numbers marked “Not verified” must be checked against the nameplate before ordering.
Main regulator with CPU, measurement, I/O, panel and power stage up to 15 A. ABB lists 3BHE014557Rxxx3 (BASIC), 3BHE014557Rxxx6 (FULL) and 3BHE014557Rxxx7 (FULL+PSS). Supplier listings show 3BHE014557R0003, 3BHE014557R0005 and 3BHE014557R0006 (Not verified).
Designation reported by a third-party supplier for 3BHE014557R0003 (Not verified).
Earlier order code of the UNITROL 1000-15 listed by ABB.
Smaller family member: 3BHE016011Rxxx2 (LIGHT), Rxxx3 (BASIC), Rxxx6 (FULL), Rxxx7 (FULL+PSS).
Microprocessor-controlled IGBT chopper power stage, connected by CAN bus, raises field current to 40 A. Order number: Not verified.
Illuminated LCD and 4-key keypad (↑ ↓ OK ESC) for local parameter setting and indication. Separate part number: Not verified.
ABB UNITROL 1000 front panel with keypad, display, serial port and terminal designations
Safety note: The AVR is connected to generator voltage and field circuits. Isolate the generator, wait for capacitors to discharge and follow the ship’s permit-to-work system before touching terminals. Work must be done by qualified electrical personnel only.
The UNITROL 1000 gives alarm and trip signals and, as an option, rotating diode and PT monitoring. For exact alarm texts and codes, refer to the ABB user manual of your unit and software version.
For a quotation, please send the nameplate photo with order number (3BHE...), serial number, software version, vessel name and the generator data. SM MARINE SERVICE™ ships worldwide from Bangladesh and China. Specific condition and availability are subject to confirmation.
Thousands of vessels and power plants still run with UNITROL 1000 regulators. The unit is robust and compact, and replacing it with a new model often needs rewiring and re-commissioning. A tested replacement unit of the same type is often the fastest and most cost-effective solution.
What is the ABB UNITROL 1000?
A compact digital automatic voltage regulator (AVR) for synchronous generators and motors.
What is the part number of UNITROL 1000-15?
ABB order codes start with 3BHE014557R (e.g. Rxxx3 BASIC, Rxxx6 FULL, Rxxx7 FULL+PSS). Always check the nameplate.
What is the part number of UNITROL 1000-7?
3BHE016011Rxxxx.
What is the maximum excitation current?
15 A continuous for the 1000-15; up to 40 A with the PM40 power module (UNITROL 1000-40).
What replaces the UNITROL 1000-15?
ABB lists the UNITROL 1020 (3BHE030579R0003 / R0006 / R0007) as replacement.
Which software is used for setting?
ABB UNITROL CMT 1000 via the serial port.
Can several units run in parallel?
Yes, up to 32 units via RS-485 (EIA-485).
Does it support Modbus?
Yes, Modbus RTU over RS-485.
What is UN1000b-Z,V3?
A board designation reported for 3BHE014557R0003 (Not verified).
Can you repair or replace a faulty UNITROL 1000?
Send us the nameplate photo and fault description and we will advise on a replacement unit.
The ABB UNITROL 1000 is a compact digital automatic voltage regulator for the excitation control of synchronous generators and motors on ships and in power plants. It offers AUTO, MANUAL, PF and VAR control modes, soft-start, droop, comprehensive limiters and alarm and trip functions. The UNITROL 1000-15 handles up to 15 A excitation current, and with the PM40 power module the system reaches 40 A. RS-232, RS-485 (Modbus RTU) and CAN bus interfaces allow commissioning with CMT 1000 and parallel operation. SM MARINE SERVICE™ supplies refurbished UNITROL 1000 units worldwide. Condition and availability are subject to confirmation.
SM MARINE SERVICE™ – Marine Automation & Navigation Equipment Supplier
Available Equipment Conditions: New • Used • Refurbished • Reconditioned (Specific product condition and availability are subject to confirmation.)
Stock Locations: Bangladesh • China
Services: Worldwide Shipping • Technical Support • Spare Parts Supply • Marine Equipment Sourcing
Samir Market, DT Road, Pahartali, beside CDA Market, Chattogram, Bangladesh
Mobile / WhatsApp / Viber: +88 01818 929292
Email: info@smmarineservice.com
Website: https://www.smmarineservice.com/
Contact us today with your nameplate photo for a fast quotation on ABB UNITROL 1000 and other excitation spare parts.
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