Name: ABB UAD155A0111 3BHE029110R0111 rack‑mounted combined I/O box - MASSIVE
Brand: ABB

Description

Product Introduction

The UAD155A0111, order reference 3BHE029110R0111, is a rack‑mounted combined I/O box designed exclusively for the ABB AC 800PEC high‑performance control platform. It integrates two independent I/O subsystems: high‑speed fast I/O for microsecond‑level power‑electronic closed‑loop control, plus conventional slow I/O for general‑purpose interlocks, status feedback and analog measurements. Acting as the physical signal interface between the AC 800PEC main controller and field transducers, actuators, and drive peripherals, it features D‑sub and terminal field connectors for convenient field wiring. This module cannot operate standalone; it must be installed within the AC 800PEC backplane chassis and paired with a matching main processor unit. It is widely deployed within PCS6000 medium‑voltage drives and generator excitation systems.

ABB UAD155A0111 3BHE029110R0111

Main Technical Specifications

Parameter	Specification
Model	UAD155A0111; Order code: 3BHE029110R0111
Product Type	Combi I/O Box, rack‑mount card for AC 800PEC system
System Compatibility	ABB AC 800PEC controller family, PCS6000 MV drive system
I/O Architecture	Dual‑system: Fast high‑speed I/O + conventional slow I/O
Field Interfaces	D‑sub connectors + screw terminal blocks
Supply Voltage	24 VDC (19.2‑30 VDC), powered via chassis backplane
Power Consumption	＜5 W typical
Isolation	Galvanic isolation between field side and controller backplane
Operating Temperature	0 °C … +60 °C
Storage Temperature	-40 °C … +85 °C
Relative Humidity	5 %‑95 %, non‑condensing
Protection Class	IP20 (for cabinet installation only)
Mounting	AC 800PEC standard rack chassis
Country of Origin	Germany

Typical Applications

‑ Generator excitation control for thermal‑power, hydro‑power synchronous generators ‑ ABB PCS6000 medium‑voltage AC drive control cabinets ‑ High‑power rectifier & inverter power‑electronic control loops ‑ Large‑variable‑speed motor drives for mining, metallurgy and heavy‑industry equipment ‑ Retrofit & spare‑part replacement for existing AC 800PEC installed base ‑ Grid‑connected power‑conversion equipment requiring ultra‑fast real‑time signal acquisition

Technical Pitfalls to Avoid

Non‑standalone operation: This I/O box cannot run without an AC 800PEC main CPU module. Installing it alone in an empty rack will result in total loss of function.
System‑mismatch risk: It is dedicated for AC 800PEC power‑electronics controller. Do not attempt to fit it into AC 800M, S800 or AC500 racks; backplane pin‑out and communication protocols are incompatible.
Wiring separation for fast‑I/O signals: High‑speed pulse and feedback signals must be routed separately from high‑power motor cables. Mixed routing will introduce EMI noise, trigger unstable sampling and random drive trips.
Backplane power quality: Unstable or noisy 24 VDC chassis supply causes intermittent module drop‑out, communication loss and false I/O status. Strictly comply with 19.2‑30 VDC input range.
Improper spare‑part replacement: When replacing a used UAD155A0111 unit, verify hardware revision, firmware version and project‑specific I/O configuration. Direct swap without parameter validation may break excitation or drive control logic.
Environmental derating: Do not operate above +60 °C ambient temperature. Exceeding temperature limits accelerates internal component aging and increases unplanned failure probability.
Grounding requirements: Field‑cable shielding must be properly connected to cabinet protective earth. Floating shielding will degrade measurement accuracy for analog and fast pulse signals.