Product Overview

The ABB 3BHE012276R0101​ is the main control board​ inside ABB’s ACS800​ (classic 2nd-gen DTC drive, 0.55–5600 kW, 400/690 V) and ACSM1​ (compact machine-drive, 0.75–355 kW, 400 V) drive families — the PCB that lives in the drive’s upright control unit (the narrow compartment at the top/side of an ACS800 wall-mount, or the control-card cage of an ACSM1-04 module). It is not the gate driver (that’s AGDR-xx), not the analog interface (that’s AINT-xx), not the gate-power-supply (that’s AGPS-xx) — it is the computing layer above those: the ABB 3BHE012276R0101​ carries the 32-bit microcontroller (Motorola/Freescale or Infineon class, depending on sub-rev), the flash for firmware (ABB’s DTC — Direct Torque Control — or vector/scalar algorithm per drive rating), the EEPROM for parameter set (motor-nameplate, accel/decel, limits, fieldbus mapping), the digital-I/O scanning (start/stop, forward/reverse, fault reset, relay outputs), the analog-I/O conditioning (reference input 4–20 mA / ±10 V, motor-thermistor input), the keypad LCD interface (ABB’s local control panel or the optional multi-language keypad plugs here), and the fieldbus option-slot that accepts ABB’s DDCS fiber, Profibus DP, Modbus RTU, DeviceNet, EtherCAT daughter cards. Downward, the ABB 3BHE012276R0101​ talks to the AINT​ (analog interface) board over a ribbon / short backplane, which in turn talks to AGPS​ (gate PSU) and AGDR​ (gate driver) over DDCS fiber — the ABB 3BHE012276R0101​ sends the PWM coordinate (stator flux / torque / flux-angle from DTC, or Id/Iq from vector) down that chain every ~25 µs (DTC’s typical sampling), and receives back the DC-link voltage, motor-phase currents (via AINT’s CT front-end), and gate-status (desat, overcurrent). Upward, the ABB 3BHE012276R0101​ presents the drive’s status to the plant DCS via the fieldbus daughter, or to the local operator via the keypad LCD (showing rpm, current, fault code, parameter menu).In the ACS800 mechanical architecture, the ABB 3BHE012276R0101​ seats on the control unit’s DIN rail / guide slots, plugs into the control-unit backplane (ribbon to AINT, fiber to AGDR via AINT piggyback, fieldbus daughter on its own header), and draws 24 V DC from the ACS800’s internal PSU (the same PSU that feeds the AINT, AGPS, cooling-fan logic). The control unit door carries the keypad window, so the ABB 3BHE012276R0101​ is accessible without opening the power compartment — but to swap it, the drive must be isolated (400/690 V AC in, DC link discharge, verify 0 V on the 24 V PSU terminal). For maintenance teams, the value of stocking the ABB 3BHE012276R0101​ is the “drive won’t commission / throws Err 11 (MCU fault) / Err 21 (parameter corruption)” scenario: if the ACS800 powers up, the keypad lights, but the drive won’t go to “Ready” and the ABB 3BHE012276R0101‘s diagnostic LEDs (Run / Fault / Comm — sub-rev dependent) show “Fault” or the keypad shows “Err 11 / 21 / 32”, a corrupt EEPROM or a failed MCU watchdog is the suspect. Swapping the ABB 3BHE012276R0101​ (keep the AINT/AGDR/AGPS wired — the ABB 3BHE012276R0101​ is on the control-unit DIN, no power-terminal work) restores the drive in <15 minutes — vs. replacing the whole ACS800 control unit (more expensive) or the whole drive (very expensive). For plants with ACS800 fleets (water-pump stations, HVAC chiller plants, conveyor lines, marine aux drives, extrusion lines), the ABB 3BHE012276R0101​ is a B-class spare: less critical than the AGDR gate driver (which fails more often due to power-side stress), but more critical than the AINT (which is mostly passive). Stock 1× ABB 3BHE012276R0101​ per 8–10 ACS800 units in the plant, plus 2× AGDR spares (since AGDR punches with the power-stack, the ABB 3BHE012276R0101​ mostly ages via EEPROM/MCU).The ACS800 is OEM-discontinued (ABB migrated to ACS880 for new units), but the installed base is enormous — 2000s–2010s builds across process industries. The ABB 3BHE012276R0101​ remains available through ABB legacy/drives-channel, verified-pull from decommed ACS800 units, and NOS stock. For plants weighing ACS800→ACS880 retrofit (new control unit + firmware migration, or full drive swap), the ABB 3BHE012276R0101​ is the 5–8 year bridge spare.

Technical Specifications

Main Features and Advantages

DTC / vector algorithm execution:The ABB 3BHE012276R0101​ runs ABB’s DTC (Direct Torque Control) on ACS800 variants — DTC estimates stator flux and torque from DC-link voltage + motor-phase currents (no shaft encoder needed for most ratings) at ~40,000 samples/sec, and drives the IGCT/IGBT gate chain directly. On a 250 kW centrifugal pump (ACS800-01, 400 V, 440 A), DTC gives <1 ms torque-step response, ±0.5 % speed accuracy without encoder — the ABB 3BHE012276R0101​ is what makes that math happen every 25 µs. On ACSM1-04 (compact drives for extruder screws, conveyor indexing), the ABB 3BHE012276R0101​ runs vector (FOC) instead — same MCU, firmware-differentiated. For MRO, the key point: if the drive throws “Err 11 (MCU fault)” or “Err 32 (DTC algorithm fault),” the ABB 3BHE012276R0101​ MCU or flash is the suspect — swap it, keep the AINT/AGDR/AGPS (power stack untouched), drive comes back.EEPROM parameter retention + DriveWindow compatibility:Motor-nameplate (FLA, pole count, rated rpm, stator R/Lm, magnetizing curve), accel/decel ramps, current limits, fieldbus mapping, relay-assignments — all live in EEPROM on the ABB 3BHE012276R0101​ (or on a separable EEPROM daughter piggybacked on the ABB 3BHE012276R0101​ — sub-rev dependent; on some ACS800 sub-revs the EEPROM is on the AINT, not on the control board, so verify per drive’s hardware manual). Before swapping, connect ABB DriveWindow​ PC tool over the DDCS fiber or RS485/fieldbus, upload the drive’s .mot + parameter file — after swap, download it back to the new ABB 3BHE012276R0101​ (or transfer the EEPROM piggy if separable). If the EEPROM is on-board and no backup exists, the tech has to re-enter 40–60 parameters via the keypad — doable (15 min) but avoidable. The ABB 3BHE012276R0101​ also stores the last 10–20 fault codes with time-stamp (DTC sample-clock resolution) — before swapping, read those codes on the keypad or DriveWindow: “Err 231 (Earth fault)” vs “Err 11 (MCU)” tells the tech whether the fault is power-stack (AGDR/AINT) or control-board (ABB 3BHE012276R0101).Fieldbus option-slot extensibility:The ABB 3BHE012276R0101​ carries a daughter-card slot on its top edge (visible when the control-unit door is open). Into that slot ABB plugs: DDCS​ (ABB’s proprietary fiber, for drive-to-drive or drive-to-PLC links), Profibus DP​ (GSD file, common in European plants on Siemens S7), Modbus RTU​ (RS485, common in NA water/WWTP), DeviceNet, EtherCAT​ (ACSM1 more than ACS800). The ABB 3BHE012276R0101​ doesn’t care which daughter is seated — the MCU talks to the daughter over the internal bus, and the fieldbus mapping (control word, status word, reference, feedback) is configured in the parameter set (group 51/52 in ACS800 param map). For spare-parts buyers: the ABB 3BHE012276R0101​ itself is protocol-agnostic — one spare covers a fleet with mixed fieldbus daughters (some ACS800 on Profibus, some on Modbus). Stock the ABB 3BHE012276R0101​ + the common fieldbus daughter separately — the daughter fails less often than the ABB 3BHE012276R0101​ (it’s mostly passive PHY), but it’s cheap to stock alongside.Keypad LCD interface for local ops:The ABB 3BHE012276R0101​ fronts the 10-pin (or whatever ABB used on ACS800) keypad port that the local control panel (LCP) plugs into — the LCP is the small LCD + 4-way nav + Start/Stop/Reset keys that sits behind the control-unit door window. On a pump-house walkthrough at 3 AM, the operator reads “Err 321 (Motor stalled)” on the LCP, then hits Reset — if the fault clears (transient stall, rags on impeller that cleared), the ABB 3BHE012276R0101​ logs it in the fault buffer. If the fault recurs, the tech swaps the ABB 3BHE012276R0101​ only after ruling out AINT (CT saturation) and AGDR (gate desat). The keypad port on the ABB 3BHE012276R0101​ also accepts ABB’s optional Assistant Control Panel​ (larger LCD, multi-language, copy-paste parameters between drives) — useful in plants with 20+ ACS800s; the Assistant panel plugs onto the ABB 3BHE012276R0101​ port and can upload/download parameters without a PC. That’s how a WWTP electrician copies the 250 kW blower drive’s param set to the spare ABB 3BHE012276R0101​ before seating it — 2 minutes, no DriveWindow laptop in the damp pump house.Diagnostic LEDs for no-laptop triage:Under the ACS800 control-unit cover (or visible through a small window on some sub-revs), the ABB 3BHE012276R0101​ carries 3–4 LEDs: Run​ (green blink = DTC scanning OK, PWM issuing), Fault​ (red = MCU watchdog / EEPROM / flash error), Comm​ (yellow blink = fieldbus traffic). A pump-house walkthrough: “Run blinking, Comm dark, Fault off” = fieldbus trunk lost (check Profibus DB9 / Modbus RS485 terminator), not a ABB 3BHE012276R0101​ fault. “Run dark, Fault red, Comm don’t-care” = ABB 3BHE012276R0101​ MCU or EEPROM — swap candidate. “Run blinking, Comm blinking, Fault off, but drive won’t go Ready” = AINT or AGDR (power-side) — don’t swap the ABB 3BHE012276R0101. Those LED patterns save a wrong-swap that wastes a $400 board.Common across ACS800-01/04/07 + ACSM1-04:ABB kept the ABB 3BHE012276R0101​ (or its immediate siblings — there are sub-rev spins like R0101/R0102/etc.) stable across the ACS800 family and into ACSM1-04 compact. A plant with ACS800-01 wall-mounts on HVAC chillers (30–200 kW), ACS800-04 book-styles on conveyor lines (0.75–90 kW), ACS800-07 cabinet units on 900 kW CW pumps (690 V, 400 A+) — the ABB 3BHE012276R0101​ spare (confirm sub-rev compatibility across the three — R0101 may be ACS800-01/04 specific, ACSM1 may use a slightly different spin; verify the plant’s drive HW rev before buying in bulk) can cover multiple, though ABB did spin the control board for ACSM1 vs ACS800 due to the different power-stack gate-chain. For spare-parts buyers: best practice is split spares — ACS800 control-board spares separate from ACSM1 spares — because the AINT/AGDR chain differs (ACSM1 uses smaller AGDR, different gate PSU rating), and while the ABB 3BHE012276R0101​ might seat, the firmware on it is drive-family-specific (ACS800 firmware won’t boot on ACSM1 hardware even if the PCB seats — ABB locks it via the EEPROM/hardware-ID handshake). So the safe statement: ABB 3BHE012276R0101​ = ACS800-01/04/07 control board; ACSM1-04 uses a closely related but not fully interchangeable spin — confirm per plant’s drive list.