Moog T161-902A-00-B4-2-2A Digital Brushless Servo Controller

Moog T161-902A-00-B4-2-2A | Digital Brushless Servo Controller

The Moog T161-902A-00-B4-2-2A is a high-performance, rack-mounted digital servocontroller designed for the electronic commutation of brushless AC servomotors.

As part of the T161 series, this "902" performance class module provides a versatile solution for high-bandwidth current and velocity control.

 It is widely used in legacy industrial systems requiring precise motion control and high reliability.

Technical Parameter Table

Product Advantages and Features

Sinusoidal Three-Phase Drive: Delivers smooth, low-torque-ripple motor performance across the entire speed range.

Resolver-Based Feedback: Utilizes a resolver system for robust position and velocity feedback, ideal for harsh industrial environments.

Microprocessor Control: Features a digitally tuned current loop and PI velocity controller for high-accuracy response.

Non-Volatile Storage: All configuration and tuning parameters are stored in E2PROM, ensuring no data loss during power outages.

Comprehensive Diagnostics: Includes a front-panel LED status indicator and watchdog timers for rapid fault detection (Short circuit, Under-voltage, I-T foldback).

Modular Construction: Designed for 19-inch rack mounting, allowing for easy "quick change" maintenance and scalability.

Application Cases

Multi-Axis CNC Machines: Providing precise axis control for milling, grinding, and specialized machining centers.

Automated Production Lines: Coordinating high-speed pick-and-place movements in semiconductor or automotive assembly.

Packaging Equipment: Managing synchronized motion for wrapping, filling, and labeling machinery.

Tire Manufacturing: Used in tire building machines for tension control and high-torque servo applications.

Related Models & Series

The T161 family scales based on peak current requirements:

T161-901: 8 A Peak / 6 A Continuous (10 kHz PWM).

T161-903: 30 A Peak / 15 A Continuous (5 kHz PWM).

T161-904: 60 A Peak / 18 A Continuous (5 kHz PWM).

T160-9xx Series: The matching rack-mount power supply units required to drive the DC bus.

Installation and Maintenance

Mounting: The module must be installed vertically within a 19-inch rack. Ensure the backplane connectors are properly aligned before seating.

Cooling: For continuous operation at 11A, a fan tray providing at least 35 m³/h of airflow is required. Without a fan, the module is derated to 4.7A.

Wiring: Warning: High voltages (300VDC+) are present on the backplane. Always disconnect the master switch and verify the DC bus has discharged before handling.

Software Tuning: Configuration and tuning can be performed via the RS232 port using Moog's "MOOGTERM" or specialized configuration software.

Grounding: Ensure the rack is properly grounded to the master ground bar to protect the sensitive internal CMOS logic from EMI.

Unique Product Description

The Moog T161-902A-00-B4-2-2A represents a masterclass in industrial "set-and-forget" technology.

While modern drives often prioritize software bells and whistles, the T161 series focuses on bandwidth and durability.

By utilizing a high-frequency PWM and a dedicated digital current loop, this controller provides the deterministic response needed for the world’s most demanding automated lines.

It remains a critical component for engineers who value hardware that can survive decades of continuous operation.