Yamatake ESA‑1010A35‑21

Product Name: Megatorque Direct‑Drive Servo Drive Unit

Product Description: Direct‑drive torque motor servo driver with resolver position feedback, providing full closed‑loop position, velocity and torque control for high‑torque direct‑drive rotary actuators.

Technical Specifications: Matched motor stall torque rating 147 Nm; resolver feedback resolution 614400 ppr; resolution switching 10‑bit / 12‑bit; control interfaces include pulse‑train, RS‑232C serial, analog velocity/torque command; digital I/O supports servo‑on, emergency‑stop, home, brake, in‑position, alarm and over‑travel signals.

Category:
Description

Functional Features: Full closed‑loop P/PI positioning algorithm; built‑in resolver‑to‑digital conversion module; resolver fault detection for open‑circuit and short‑circuit; built‑in position indexer function; parameter read‑write and monitoring via RS‑232C serial port; multi‑alarm diagnostic status output.

Application Scenarios: Semiconductor wafer handling equipment, rotary indexing tables, heavy‑duty robot joints, precision rotary positioning machinery, high‑torque direct‑drive automation stations.

Performance Parameters: Configurable command response bandwidth; over‑current, over‑voltage, over‑heat, resolver fault alarm outputs; operating ambient temperature 0 °C ~ +50 °C; cooling via natural convection with forced‑air option.

Material Composition: Metal sheet‑metal enclosure; power‑semiconductor power board; resolver signal processing PCB; aluminum heat sink for power devices; screw terminal and multi‑pin connector interfaces.

Structural Characteristics: Cabinet‑mount vertical installation form factor; separate power section and signal‑circuit layout; multiple dedicated multi‑pin connectors for motor, resolver, command I/O and serial communication; status LED indicators on the front face.

Working Principle: Receives external position, velocity or torque command signals; the resolver sensor feeds rotor angular position back to the RDC chip; the closed‑loop P/PI controller calculates motor torque output; the power amplifier drives the direct‑drive torque motor to achieve the target motion state; hardware circuits detect abnormal operating conditions and trigger alarm outputs.

Installation Requirements: Install inside a ventilated electrical cabinet; maintain heat‑dissipation clearance around the heat sink; route resolver feedback cable separately from power cables; secure all multi‑pin connectors fully latched; connect the protective earth terminal; the emergency‑stop circuit must be hard‑wired according to machine safety requirements.

Usage Precautions: Confirm motor‑driver parameter matching before power‑on; resolver wiring must follow pin assignment strictly; do not operate without motor load connected; observe cooling‑air requirements; complete emergency‑stop safety‑circuit verification before commissioning; save all configured parameters before power‑off.

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