Model Definition

DMA: High-current three-phase power module subclass under Servodyn-D series, matched with RMA/DM45 rack backplane with built-in cooling fan

045A: Power grade code, rated continuous output 44Arms, peak transient 90Arms, standard 50mm cabinet width layout

1101: Base PCB hardware revision, empty personality expansion slot, factory default bare power base without integrated control board

D: Standard backplane-assisted air cooling version, original factory mechanical structure without customized modification

Technical Parameters

DC Bus Input: 670VDC regulated /715VDC unregulated common intermediate DC link, parallel cabinet busbar connection with Servodyn-D rectifier power unit

Output Rating: Continuous 44A RMS, peak overload 90A RMS, configurable PWM carrier frequency 4kHz~8kHz

Cooling Mode: Passive convection + backplane rack forced air cooling via RMA/DM45 fan backboard; output derate above 45℃, 20% derating at +55℃

Ambient Range: Rated working 5℃~45℃ without deration, storage -25℃~+70℃; altitude >1000m triggers output derating, max 35% derate over 5000m elevation

Dimension & Weight: W50×H520×D208mm, net weight 7.3kg, cabinet IP20 protection grade

Compatible Motors: Indramat SF absolute sync motor, SR resolver sync motor, DU asynchronous spindle motor, large-size linear synchronous motor

Auxiliary Control Supply: 24VDC control power input, rated consumption 1.32A

Cabinet Power Loss: Max internal power dissipation 220W per single module

Interface & Communication Configuration

DC Bus High-Power Terminal

Bottom heavy-duty screw terminal for DC-link positive/negative docking, multi-drive parallel shared DC-bus topology for multi-axis system

Motor Power Terminal

U/V/W three-phase high-current power output terminal + independent motor electromagnetic brake auxiliary power terminal block

Motor Feedback Port

Standard DB multi-core socket, compatible resolver, TTL incremental, sine/cosine 1Vpp encoder and absolute SSI encoder signal input

Front Expansion Slot

Vacant personality card slot for optional plug-in: SERCOS fiber-optic digital bus card or ±10V analog command control board; independent memory card slot for offline parameter backup & firmware storage

Service Debug Interface

Front RS232 serial port for WinDrive software parameter upload/download, drive fault diagnosis and firmware upgrade; multi-segment LED status & fault indicator panel

Digital I/O Terminal

24VDC configurable DI/DO terminal strip for servo enable, emergency stop, travel limit interlock, fault relay signal output wiring

Core Functions

Full digital 32-bit processor current-speed-position triple closed-loop control, automatic motor parameter identification and auto-tuning commissioning routine

Dual control mode switching: Analog ±10V external command after analog option board installation or SERCOS fiber real-time bus network control with SERCOS card equipped

Comprehensive multi-level protection: Overcurrent, overvoltage, DC bus undervoltage, overheat, encoder signal loss, output short-circuit & motor stall protection with coded fault alarm code output

Common DC-bus regenerative energy processing, surplus braking energy consumed by cabinet shared external braking resistor during rapid deceleration of high-inertia load

Programmable motor holding brake delay logic, automatic brake release/lock linkage synchronized with servo operating status

Hot-swap compatible cold module replacement design matching DM45 backplane, rapid spare module swap for on-site equipment maintenance

Application Scenarios

Heavy-duty CNC vertical machining center, gantry milling machine main spindle & large feed axis matching Servodyn-D rectifier power supply cabinet

High-speed heavy-load slitter, metal stamping, die-casting automation main drive servo control with big inertia load

Large-format printing, textile warp knitting production line multi-axis high-power synchronized transmission system

Legacy Indramat Servodyn-D old heavy-duty equipment renovation & faulty high-power drive spare replacement

Large linear motor precision positioning equipment, hydraulic replacement electric servo press main drive unit