Description
ELAU MC‑4‑11‑01‑400
Technical Specifications Main Power Supply: 3AC 380‑480V, 50‑60Hz Control Power Supply: DC24V, 0.8A operating current Continuous Output Current: 1A Peak Output Current: 2.5A for 1‑second overload Output Frequency Range: 0‑600Hz Communication Interface: SERCOS fiber‑optic interface, service Ethernet port, digital I/O terminal block Cooling Method: Natural convection cooling Protection Class: IP20 Operating Ambient Temperature: 0℃ to +55℃ Storage Temperature: ‑25℃ to +70℃ Mounting Type: DIN‑rail mounting inside control cabinet
Functional Features Supports three control modes: position control, speed control and torque control. Implements automatic motor parameter identification via electronic nameplate stored inside ELAU servo motors. SERCOS fiber‑optic communication delivers strong noise immunity and microsecond‑level multi‑axis synchronization. Built‑in complete fault diagnosis system monitors over‑current, over‑voltage, under‑voltage, over‑temperature and encoder malfunctions. Integrated brake chopper circuit connects external braking resistor to dissipate regenerative energy. Hardware STO Safe Torque‑Off safety function is integrated. LED status indicators display power status, bus status, operating state and fault codes directly. Supports parameter configuration and firmware upgrade through EPAS‑4 software suite.
Application Scenarios Light‑duty positioning axes for packaging machinery; label feeding mechanisms; small auxiliary motion axes of printing equipment; low‑power multi‑axis synchronized automation lines.
Performance Parameters Steady‑state speed control accuracy reaches ±0.01%. Short‑term overload capability hits 250% of rated output current. Fault event logs are stored in non‑volatile on‑board memory. SERCOS communication cycle supports minimum 250 microseconds. Regenerative energy generated during motor deceleration is consumed by external braking resistor.
Material Composition Aluminum alloy die‑cast housing, FR‑4 multilayer printed circuit boards, IGBT power inverter modules, fiber‑optic transceivers, metal screw‑lock terminal blocks, SMD LED indicator components.
Structural Characteristics Compact vertical DIN‑rail form factor. Upper section accommodates main power terminals and motor power connectors. Middle section houses SERCOS fiber‑optic ports and Ethernet service interface. Lower section arranges digital input‑output terminals and status LED array. Heat dissipation relies on natural convection through housing ventilation slots. Model designation MC‑4‑11‑01‑400 is permanently printed on the metal nameplate.
Working Principle Three‑phase AC input power passes through internal rectifier to generate DC bus voltage. IGBT power modules convert DC bus voltage into adjustable three‑phase AC output to drive connected servo motor. The drive receives motion commands transmitted over SERCOS fiber‑optic bus, reads encoder feedback signals from the motor, and executes three‑loop closed‑loop calculation in real‑time. When motor deceleration produces regenerative energy, internal brake chopper switches energy to external braking resistor. Hardware monitoring circuits continuously sample voltage, current and temperature values, and cut off power output immediately upon fault detection while outputting fault signals.
