Description
Kollmorgen S7240P‑NA
- Technical Specifications
- Input Power: 3‑phase 208‑480 VAC, 50‑60 Hz grounded industrial supply
- Rated Continuous Output Current: 24 A RMS
- Peak Output Current: 72 A RMS (2 seconds)
- Rated Apparent Power S1 Operation: 18 kVA
- DC‑link Voltage: 290‑675 VDC
- Auxiliary Control Supply: 24 VDC isolated
- Cooling Method: NA natural convection cooling, no internal fan
- Protection Class: IP20
- Weight: 5.5 kg
- Functional Features
- Onboard EtherCAT, CANopen, RS232 service interface
- Multi‑feedback support: resolver, SFD3, Hiperface‑DSL, incremental encoder
- MMC memory card slot for parameter backup and firmware upgrade
- Single‑channel STO Safe Torque‑Off safety function
- Elevated peak‑current capability for short‑time high‑overload motion cycles
- Auto‑tuning, cogging suppression, high‑dynamic multi‑loop control
- IEC 61131 macro programming for custom motion logic
- Three front‑side expansion slots for fieldbus and I/O extension modules
- Fan‑less NA design removes fan wear and dust‑ingress risk
- Application Scenarios: Short‑cycle high‑overload pick‑and‑place, press‑automation auxiliary axes, gantry systems with intermittent heavy shock‑load, low‑dust clean cabinet installations
- Performance Parameters: 62.5 µs current‑loop update cycle; supports electronic gearing, cam profiling, master‑slave synchronization, encoder emulation output
- Material Composition: Large‑area anodized aluminum passive heat‑sink housing, galvanized steel mounting bracket, FR‑4 circuit boards, high‑current IGBT power modules, thermoplastic connector housings, no fan assembly
- Structural Characteristics: Vertical book‑style cabinet‑mount unit; large passive aluminum heat sink for heat dissipation; separated power and control compartments; high‑current combicon power terminals, D‑Sub signal connectors; three configurable front‑panel expansion slots; no fan hardware installed
- Working Principle: 3‑phase AC mains rectified to DC‑link bus; DSP controller executes multi‑level closed‑loop algorithm; PWM power inverter delivers high peak‑current 3‑phase AC to servo motor for short‑time overload motion; motor encoder feedback closes control loops; single‑channel STO hardware safely disables power output for safety‑related machine conditions; all heat is dissipated passively by large‑area aluminum heat sink without forced airflowKollmorgen.
- Installation Requirements: Vertical upright cabinet mounting; enlarged vertical clearance for natural convection heat dissipation; conductive metal mounting plate for EMC grounding; ambient operating temperature limited to 0‑40 °C for NA fan‑less version; avoid adjacent high‑heat devices; altitude derating above 1000 m.
- Usage Notes: Protective earth connection must be firmly fastened; 24 VDC auxiliary supply must be galvanically isolated; MMC memory card hot‑swap forbidden under power‑on; avoid excessive cabinet ambient temperature which triggers over‑temperature fault; never cover heat‑sink surfaces; strictly verify motor inductance and feedback parameters during commissioning; avoid condensation and corrosive gas environment.
