SIEB & MEYER SINUDYN-36 Servo Amplifier Series

Module Feature

SIEB & MEYER SINUDYN-36 is a series of standalone digital high-frequency spindle servo amplifiers. It supports synchronous AC spindle motors equipped with resolver, sine/cosine encoder or Hall sensors. It achieves ultra-high output frequency for high spindle rotational speed, featuring fast dynamic response and precise speed & spindle orientation regulation. Built-in multi-channel voltage, current and temperature monitoring protection circuit. Compact metal panel mount housing with excellent EMC and vibration resistance performance. Widely used in PCB routing, semiconductor drilling and CNC milling machines.

Working principle

Three-phase AC mains input power passes EMI filter and rectifier bridge to form stable DC bus. Internal IGBT power stack converts DC bus into adjustable high-frequency three-phase AC power to drive spindle motor. The amplifier continuously collects real-time motor speed and position feedback signal to execute closed-loop control. When overvoltage, overcurrent or overtemperature fault is detected, the amplifier immediately cuts off power output and sends fault code to upper CNC control system for safety interlock.

Onboard components

IGBT power stack, DC-link capacitor bank, current & voltage sampling circuit, multi-type encoder signal conditioning interface, main control processor, temperature sensor, power terminal block, digital & analog signal connectors, LED status indicator array.

LED indicators

Front panel LED indicators for module power, drive ready, spindle enable, running status and fault code display.

Hardware self-diagnosis

Visual inspection of module housing, terminals and connectors; DC bus voltage measurement; spindle motor cable insulation and continuity test; read LED fault codes; inspect cooling fan and heat sink for dust accumulation or damage.

Programming software

SIEB & MEYER dedicated commissioning software for spindle parameter configuration, auto-tuning and firmware inspection.

Electrical & Process Parameters

Model: SINUDYN-36 series Device type: Digital high frequency spindle servo amplifier Input: 3-phase 230 / 400 / 480 V AC mains Output: High frequency 3-phase AC for synchronous spindle motor Control mode: Closed loop speed / orientation control Cooling: Forced air cooling with built-in fan Protection: Overvoltage, undervoltage, overcurrent, short circuit, overtemperature protection Mounting: Panel mounting

Mechanical & Structure

Mounting: Panel mounting Protection class: IP20 (inside control cabinet)

Environmental

Operating temperature: 0℃ ~ +50℃ Ambient humidity: 5~95% non-condensing Certification: CE, UL 508C compliant Status: SIEB & MEYER legacy SINUDYN-36 spindle servo amplifier series

System compatibility

Compatible with SIEB & MEYER high-speed synchronous spindle motors, forms complete high-performance spindle drive system.

Function

SINUDYN-36 series spindle amplifiers manufactured by SIEB & MEYER. They output high-frequency three-phase power to spindle motors and realize high-precision speed and angular positioning. Motor overload, cable short-circuit, fan failure or capacitor aging will trigger protection and disable power output. They are high-speed spindle power amplifier units for CNC and semiconductor processing equipment.

Installation

Follow lockout/tagout safety procedure before installation. Cut off all drive power completely. Fix the amplifier on cabinet panel via mounting holes. Wire spindle power cable and encoder feedback cable correctly. Configure spindle parameters and run auto-tuning via SIEB & MEYER commissioning software, test spindle rotation before formal machining.

Interface

3-phase AC input terminal, spindle motor 3-phase power output terminal, encoder feedback connector, analog & digital I/O port, fault signal output terminal of SINUDYN-36 series amplifier.

Diagnostic

No power LED: Missing AC input, blown input fuse or wrong wiring. Drive not ready: Pre-charge failure, defective DC capacitor or communication error. Overcurrent alarm: Spindle motor winding short, damaged power cable or mechanical jam. Overheat alarm: Cooling fan failure, clogged heat sink or high ambient temperature. Speed deviation fault: Damaged encoder, loose feedback cable or incorrect parameter setting.

Product Brief

SINUDYN-36 SIEB & MEYER panel mount digital high speed spindle servo amplifier series,3 phase AC input,support resolver and sine-cosine encoder,for synchronous spindle motors,used in CNC and semiconductor routing & drilling equipment.