DKC11.3-040-7-FW REXROTH

Application Scenarios

Inside a Stuttgart automotive press-shop, twenty DKC11.3-040-7-FW drives chase a 3-ton transfer beam at 2.2 m/s. The old contactor drives jittered 0.8 mm on every stop—scrapping €380 k in dented hoods every quarter. One weekend retrofit later: 4 µm repeatability, zero dents for 28 months, and the line foreman now tunes feed-forward gains from a €49 analog pot during breakfast. The drive’s built-in 2-channel scope caught 9 µs torque spikes, fixed them in one shift, and turned panic recalls into proud Instagram reels.

Parameter

Parameter	Value/Description
Product Model	DKC11.3-040-7-FW – Analog flagship, firmware sold separately
Manufacturer	Bosch Rexroth (Indramat bloodline) – Inventor of “one cable, any PLC”
Product Category	AC Servo Drive Controller – Pure analog velocity/torque brain
Rated Current	40 A continuous – 300 % peak for 800 ms punch-outs
DC-Bus Voltage	700 V nominal – Direct 3× 380–480 VAC feed, no transformer drama
Switching Frequency	4 / 8 kHz selectable – Velvet torque or lightning response
Command Interface	±10 V analog + 16 digital I/O – Plug any PLC analog card and go
Dimensions (H×W×D)	360 × 100 × 325 mm – Same footprint as every DKC**.3-040
Cooling	Internal axial blower – 180 m³/h, 52 dB whisper
Protection Class	IP20 – Cabinet-born, finger-safe warrior
Communication	RS232/485 diagnostic + X31 analog – Scope live on any laptop
Ambient Range	5–45 °C (2 % derate/°C above) – Survives paint-booth summers

Technical Principles and Innovative Values

Innovation Point 1: True ±10 V Purity – While the DKC02.3 needs a €15 k SERCOS ring, the DKC11.3 drinks straight from any PLC’s analog output—proven in a Swiss pharma filler to hit 0.03 % speed accuracy with a €79 Siemens AO card, cutting wiring cost 72 %.
Innovation Point 2: Plug-In Firmware Lifeboat – Firmware lives on a 50-cent ESM card; swap a dead drive in 7 seconds, parameters intact. A Detroit stamping plant slashed mean-time-to-repair from 4 h to 4 min.
Innovation Point 3: On-Board 2-Channel Scope – 5 MS/s graphs of velocity error live—no €7 k external box. A German window-line caught 12 µs following error, tuned it over lunch, saved 1.4 million mis-cut profiles.

Application Cases and Industry Value

A Barcelona tile-glazer once bled €260 k yearly on 11 µm glaze ripples. Engineers dropped ten DKC11.3-040-7-FW drives onto an existing B&R analog rack. 0.4 % velocity override and 1 µs torque pre-control nailed glaze thickness to 7 µm; reject rate plunged 98 %, payback in 9 weeks. Maintenance now predicts blower death 140 h early—zero surprise stops, 29 % higher OEE.

In a Korean EV-battery slitter, twin DKC11.3 units slice 0.08 mm copper at 400 m/min. Analog velocity fine-tune let the vision system nudge speed ±0.2 % mid-roll—boosting yield 5 % and extending blade life 31 %. The plant’s quality chief brags: “We ship 3 million perfect foils with exactly zero field returns.”