Description
ELAU VDM01D22AA00
Technical Specifications: DC‑link input voltage 565‑680 VDC, continuous output current 22 A, peak output current 44 A, compatible with Hiperface, EnDat and incremental encoder feedback types, SERCOS III optical‑fiber bus interface, built‑in brake chopper channel, protection rating IP20, operating ambient temperature range 0 °C‑+55 °C, performance derating required when temperature exceeds 45 °C.
Functional Features: High‑current output supports large‑torque servo motor driving, integrated current‑speed‑position cascade closed‑loop control algorithm, SERCOS III bus ensures high‑precision multi‑axis synchronization, motor parameter automatic identification function, full‑coverage hardware fault detection including over‑current, over‑voltage, under‑voltage and over‑temperature, configurable multi‑channel digital input and output, front‑panel multi‑color LED fault diagnostic indicator array.
Application Scenarios: Heavy‑duty main drive axes of packaging machinery, printing converting main drive equipment, textile high‑power servo axes, heavy‑load automated handling mechanism, large‑size special‑purpose industrial machine tools.
Performance Parameters: Motion control loop cycle time 125 µs, speed‑loop bandwidth up to 1150 Hz, fault protection response time less than 10 ms, support direct acquisition of motor winding thermal‑sensor signal, configurable maximum 16 points digital I/O.
Material Composition: Sheet‑metal cabinet‑grade housing, high‑current IGBT power switching modules, large‑capacity DC‑link film capacitors, multi‑layer high‑current printed‑circuit control board, flame‑retardant plastic high‑current insulated terminal blocks.
Structural Characteristics: Vertical book‑style cabinet structure, DIN‑rail mounting compatible, front‑panel LED diagnostic indicators, upper‑section high‑current DC‑bus power terminals, lower‑section motor power, encoder feedback and bus‑signal terminals, internal forced‑air convection cooling channel for high‑current power components.
Working Principle: High‑voltage DC‑bus power from central power supply flows into internal high‑current IGBT power bridge circuit, converts DC‑link voltage into three‑phase variable‑frequency variable‑voltage AC output to drive large‑torque servo motor. Upper‑level motion controller sends motion set‑point command through SERCOS III bus. Encoder feedback signal is locally sampled. Closed‑loop control algorithm generates high‑current PWM output waveform. Internal monitoring circuit continuously detects power component voltage, current and temperature for fault protection trigger.
Installation Requirements: Install inside IP20‑grade industrial control cabinet; keep enough vertical ventilation clearance above and below drive unit according to factory specification; adopt high‑current shielded motor cable and matched encoder feedback cable; connect protective earth terminal reliably to cabinet ground bar; strictly separate high‑power motor cable routing path and weak‑signal communication cable path.
Usage Notes: Prohibit opening housing cover under power‑on condition; complete high‑current motor parameter dataset configuration during commissioning; confirm DC‑bus voltage within specification before power‑on; avoid operation in environment with conductive dust and corrosive gas; execute reliable shielding grounding for signal cables; regularly check terminal screw tightening torque especially under high‑vibration heavy‑load working environment.
