Lauritz Knudsen xD3000 AC Drive – Specs & Programming Guide

xD3000 Series AC Drives: Complete Guide to Features, Specifications & Programming

⚡ The xD3000 from Lauritz Knudsen Electrical & Automation is a versatile, high-performance variable frequency drive built for demanding OEM applications — cranes and hoists, winding machines, gate barriers, tandem-motor systems and general industrial machinery — across a 0.18kW to 15kW Heavy Duty range. It’s engineered for energy efficiency, operator safety and a quick, user-friendly setup. This guide covers everything from decoding the model number to wiring the drive and commissioning it for your application.

💡 Main Features

✅ Built-in EMC filter across the entire range — compliant with IEC/EN 61800-3 Category C2/C3 (Category C1 with an external filter)
✅ External 24VDC input keeps the display, control circuitry, fieldbus communication and I/O monitoring live even without 3-phase supply
✅ Enhanced speed & torque accuracy at very low speed with Sensorless Vector Control (SVC)
✅ Wide output frequency range up to 599Hz for high-speed motor applications
✅ Native control of both asynchronous (induction) and permanent magnet motors
✅ Built-in Modbus RTU & CANopen connectivity, with Modbus TCP, EtherNet/IP, DeviceNet, PROFIBUS, PROFINET and more available as option cards
✅ Motor surge limit function to protect old, poor-quality or rewound motors
✅ In-built PID controller with 4 preset references and PID Predictive Speed
✅ Sleep/Wake-Up in speed control mode, and Catch-on-the-Fly (flying start) onto an already-spinning motor
✅ Fault Inhibition (Fire Mode), Auto Tuning, Current Limitation (stall prevention), DC Braking/Stop and Freewheel Stop & Fast Stop
✅ IGBT self-test after the RUN command — checks for output short-circuit, inoperable or short-circuited IGBTs before the motor is driven

🏗️ Application-Specific Functions (Crane, Hoist & Winding)

What sets the xD3000 apart from a general-purpose drive is a set of functions built specifically for hoisting, positioning and multi-motor applications:

✅ External brake control for horizontal & vertical movement — dedicated brake release/engage outputs for crane/hoist (vertical) and long-travel/cross-travel (horizontal) applications, with separate settings for brake release current, time and frequency, brake engage frequency/delay/time, and additional interlocks (brake feedback, brake contactor feedback, brake restart sequence, load-slip monitoring in closed loop). Brake release current can even be set separately for hoisting and lowering (forward & reverse)
✅ High-speed hoisting & Rope Slack — adapts motor speed to the load, allowing an empty hook to travel faster than nominal speed, while Rope Slack detection prevents starting at high speed when the rope is still slack (avoiding uneven cable winding and rope stress)
✅ External load measurement via weight sensor — automatically increases or decreases brake release current based on the sensed load, reducing jerk on light loads
✅ Torque limitation — e.g. a gate barrier that stops without pushing back against a car beneath it, or winding/unwinding applications where speed must fall as the reel diameter grows
✅ Traverse control — precise back-and-forth movement of a yarn guide on winding machines, keeping the yarn evenly distributed across the bobbin
✅ Positioning by limit switches or sensors — configurable stop and slow-down commands from digital inputs, with the stop mode itself configurable
✅ Load sharing — for two mechanically-linked motors (tandem cranes, DRI kilns, long conveyors, radar drives), improves torque distribution so a more heavily loaded motor slows and shares load with its partner
✅ Parameter set switching (15 parameter sets across 3 groups) and high-speed switching for machines that need to change configuration on the fly
✅ DC sharing, optimized energy saving, multi-motor/multi-configuration control, and Kinetic Energy Buffering (KEB) to ride through short supply dips without tripping
✅ 5 built-in safety functions — STO, SLS, SS1, SMS and GDL, with an additional safety card for extended integrity

📋 Understanding the xD3000 Model Number

Every xD3000 drive’s part number follows the format xD3000-1234-VIBDEF. Here’s how each position decodes:

Code Position	Meaning
xD	Product — xD = Drives
3000	Drive model number
1234	Current rating code (A) — e.g. 01P5 = 1.5A, 03P7 = 3.7A, 66P0 = 66A
V — Mains Voltage	1 = 1-Phase 200–240VAC · 2 = 3-Phase 200–240VAC · 4 = 3-Phase 380–500VAC
I — IP Class	B = IP20
B — Braking Unit	2 = With braking unit · 1 = Without
D — DC Reactor	1 = Without DC reactor
E — EMC Filter	2 = With EMC filter · 1 = Without
F — Future Use	1 = Reserved

💡 For example, XD3000-03P7-1B2121 is a 3.7A, single-phase 200–240VAC drive, IP20, with a built-in braking unit and EMC filter, and no DC reactor.

🌐 Network Architecture

The xD3000 is built for integration into an existing automation network, with two common topologies:

✅ Modbus RTU serial link — a PLC or HMI connects directly to the drive’s front RJ45 port over a 2-wire RS485 Modbus serial link. This is the simplest setup and needs no extra hardware
✅ Modbus TCP / EtherNet-IP daisy chain — multiple xD3000 drives, each fitted with an XDCI-ETH-V01 comm card (via the XDKT-ADP-V01 adapter), are daisy-chained together and connected back to a PLC/HMI, with a SCADA system monitoring the whole line. The same daisy-chain approach extends to PROFIBUS, PROFINET, DeviceNet, EtherCAT and POWERLINK using the matching option card

⚖️ Available Models & Ratings

All Heavy Duty (HD) ratings below are for continuous operation at 150% overload for 60 seconds, at the nominal 4kHz switching frequency.

1-Phase, 200–240VAC

Model No.	Power HD (kW)	Output Current Iₖₑ (A)	Apparent Power (kVA)	Input Current at Vmax (A)
XD3000-01P5-1B2121	0.18	1.5	0.7	2.8
XD3000-03P3-1B2121	0.37	3.3	1.2	4.9
XD3000-03P7-1B2121	0.55	3.7	1.6	6.6
XD3000-04P8-1B2121	0.75	4.8	2.0	8.4
XD3000-06P9-1B2121	1.1	6.9	2.8	11.5
XD3000-08P0-1B2121	1.5	8.0	3.6	14.9
XD3000-11P0-1B2121	2.2	11	4.8	20.2

3-Phase, 200–240VAC

Model No.	Power HD (kW)	Output Current Iₖₑ (A)	Apparent Power (kVA)	Input Current at Vmax (A)
XD3000-01P5-2B2111	0.18	1.5	0.7	1.7
XD3000-03P3-2B2111	0.37	3.3	1.2	3.0
XD3000-03P7-2B2111	0.55	3.7	1.7	4.2
XD3000-04P8-2B2111	0.75	4.8	2.2	5.3
XD3000-06P9-2B2111	1.1	6.9	3.0	7.2
XD3000-08P0-2B2111	1.5	8.0	3.9	9.3
XD3000-11P0-2B2111	2.2	11	5.2	12.5
XD3000-13P7-2B2111	3.0	13.7	6.5	15.7
XD3000-17P5-2B2111	4.0	17.5	8.3	19.9
XD3000-27P5-2B2111	5.5	27.5	12.4	29.8
XD3000-33P0-2B2111	7.5	33	15.9	38.2
XD3000-54P0-2B2111	11	54	21.4	51.4
XD3000-66P0-2B2111	15	66	27.9	67.1

3-Phase, 380–500VAC

Model No.	Power HD (kW)	Output Current Iₖₑ (A)	Apparent Power (kVA)	Input Current at Vmax (A)
XD3000-01P5-4B2121	0.37	1.5	1.4	1.6
XD3000-01P9-4B2121	0.55	1.9	1.9	2.2
XD3000-02P3-4B2121	0.75	2.3	2.4	2.8
XD3000-03P0-4B2121	1.1	3.0	3.3	3.8
XD3000-04P1-4B2121	1.5	4.1	4.2	4.9
XD3000-05P5-4B2121	2.2	5.5	5.7	6.6
XD3000-07P1-4B2121	3.0	7.1	7.3	8.4
XD3000-09P5-4B2121	4.0	9.5	9.2	10.6
XD3000-14P3-4B2121	5.5	14.3	12.6	14.5
XD3000-17P0-4B2121	7.5	17	16.2	18.7
XD3000-27P7-4B2121	11	27.7	22.2	25.6
XD3000-33P0-4B2121	15	33	28.8	33.3

🔧 Technical Specifications

Power range	0.18 – 15.0 kW (Heavy Duty)
Enclosure type	IP20
Rated voltage	200–240V (-15/+10%) or 380–500V (-15/+10%)
Rated frequency	50/60Hz (±5%)
Max output frequency	0.5 – 599Hz
Overload capacity	Heavy Duty: 150% of rated current for 1 minute
Control method	Asynchronous motor: V/F (2-point & 5-point), Slip Compensation, Quadratic V/F, Sensorless Vector Control (SVC) · Synchronous motor: Permanent Magnet control law
V/F patterns	Linear, S Ramp, U Ramp, Customized (S Curve)
Acceleration / deceleration time	0.0s – 6000s
Switching frequency	2–16kHz adjustable (4kHz nominal)
Starting torque	150% at 3Hz in V/F
Transient overtorque	170–200% of nominal motor torque, depending on drive rating and motor type
Braking torque	Up to 150% with DBR · over 80% without DBR
Efficiency at full load	95.7 – 98.4%
Power factor (with line choke)	Displacement ≥ 0.95 · True PF: 1-Ph ≈ 0.73, 3-Ph ≈ 0.89
Built-in keypad	4-digit, 7-segment LED
Optional keypad	4-digit 7-segment LED, IP54 remote · Advanced graphical LCD keypad, IP65 (connected via RJ45)
Communication protocol	Built-in Modbus & CANopen via RJ45 (2-wire RS485) · optional Modbus TCP, EtherNet/IP, PROFIBUS, PROFINET, DeviceNet, EtherCAT, POWERLINK
Ambient temperature (operation)	−10°C to +50°C (without derating), up to +60°C with derating
Relative humidity	5–95%, non-condensing
Compliance	CE, RoHS · IEC 61800-3, IEC 61800-5-1, IEC 60721-3

🔌 Wiring the xD3000 Drive

The xD3000 has three wiring zones: the main power circuit, the motor output, and the control terminal block. On single or three-phase models, the layout follows the same pattern — only the supply connections differ.

Main power & motor circuit

✅ R/L1, S/L2, T/L3 — mains supply (single-phase models use R/L1 & T/L3), through a KM1 contactor and MCCB/MPCB
✅ U/T1, V/T2, W/T3 — output to the motor
✅ PA+, PB — built-in braking unit / external braking resistor connection
✅ STO, P24 — Safe Torque Off input and 24V supply for the safety circuit
✅ R1A/R1B/R1C, R2A/R2C — relay outputs, e.g. wired to switch the line contactor off on a fault

Control terminals

Terminal	Type	Function
DI1–DI6	Digital input	6 programmable inputs (4 sink/source) — run/stop, direction, preset speeds, limit switches, etc. 24Vdc, impedance 3.5kΩ. DI5 doubles as a pulse counter input (up to 30kHz); DI6 doubles as a PTC sensor input
AI1, AI2, AI3	Analog input	0–10V or 0–20mA reference signals — e.g. a speed potentiometer or a 4–20mA process/weight-sensor signal
AQ1	Analog output	0–10V / 0–20mA output, e.g. for a remote frequency or load meter
DQ+/DQ−	Transistor output	24Vdc, 100mA max digital output
R1A/R1B/R1C, R2A/R2C	Relay output	2 relay outputs (1 changeover, 1 Form A), commonly wired to a fault indicator, brake, or contactor
+10V, +24V, COM	Power/reference	Onboard supply rails for the analog reference potentiometer and external switches
P24, STO	Safety	24Vdc Safe Torque Off input, impedance 1.5kΩ

⚠️ Always wire and check connections with the drive fully powered down and the DC bus capacitors discharged. Keep control wiring separate from the motor power cable, and use motor/line chokes as recommended in the catalog for cable runs longer than 25–50m or when driving more than one motor from a single drive.

💻 Programming & Commissioning the xD3000 Drive

The xD3000 ships with a built-in keypad and can be extended with an advanced graphical keypad or brought onto a fieldbus network for PLC-based commissioning.

Keypad & display options

✅ Standard — built-in 4-digit, 7-segment LED display for status and parameter access
✅ XDOP-DOP-100 — IP54 LED remote keypad, for mounting on a panel door away from the drive
✅ XDOP-DOP-500 — IP65 advanced graphical LCD keypad (with the XDKT-DOP-500 mounting kit), connected via the front RJ45 port for full menu-driven navigation

Commissioning workflow

💡 Typical first-run sequence: power up the drive → enter the motor’s nameplate data (rated voltage, current, frequency and poles) → run Auto Tuning so the drive identifies the motor’s electrical parameters — this matters most for Sensorless Vector Control and Permanent Magnet motor control → select the control mode that fits your motor and application (V/F 2-point or 5-point, Quadratic V/F, SVC, or the PM motor control law) → set the acceleration/deceleration ramp shape and time (linear, S-curve or U-ramp, 0–6000s) → assign the digital and analog I/O to match your wiring → for crane, hoist or traverse applications, configure the dedicated brake-control parameters (release/engage current, time and frequency, and any interlocks) separately for each direction of travel.

Communication & fieldbus setup

✅ Built-in Modbus RTU & CANopen over the front RJ45 port (2-wire RS485, 4800–38400bps for Modbus, 50kbps–1Mbps for CANopen)
✅ Optional comm cards fitted via the XDKT-ADP-V01 adapter add Modbus TCP/EtherNet IP, PROFIBUS-DP, PROFINET, DeviceNet, EtherCAT or POWERLINK — letting several drives daisy-chain back to a single PLC/HMI/SCADA connection, as shown in the network diagrams above

🧩 Accessories

CAT No.	Description
XDOP-DOP-100	IP54 LED Remote Keypad
XDOP-DOP-500	IP65 LCD Graphical Keypad
XDKT-DOP-500	Mounting kit for IP65 LCD Keypad
XDKT-ADP-V01	Communication Option Module Adapter
XDEN-SPD-V01	Speed Monitoring Card
XDCI-ETH-V01	Modbus TCP / EtherNet IP Comm. Card
XDCI-ECT-V01	EtherCAT Comm. Card
XDCI-PDP-V01	Profibus-DP Comm. Card
XDCI-DEN-V01	DeviceNet Comm. Card
XDCI-PLN-V01	POWERLINK Comm. Card
XDCI-PFN-V01	ProfiNet Comm. Card
XDCI-CND-V01	CANopen DaisyChain Comm. Card
XDCI-CNS-V01	CANopen SUB-D Comm. Card
XDCI-CNT-V01	CANopen Terminals Comm. Card
XDSI-SIM-V01	Additional Safety Integrity Module

🏭 Typical Applications

✅ Cranes & hoists — dedicated brake control, rope-slack detection and load-sensing for vertical and horizontal movement
✅ Winding & unwinding machines — traverse control and torque limitation as reel diameter changes
✅ Gate barriers & access control — torque-limited movement that stops safely against an obstruction
✅ Tandem & multi-motor systems — load sharing across mechanically-linked motors (tandem cranes, DRI kilns, long conveyors, radar drives)
✅ General OEM machinery — PID-controlled process equipment, pumps and fans with built-in energy-saving V/F
✅ Retrofits — old, poor-quality or rewound motors, thanks to the motor surge limit function

❓ Frequently Asked Questions

What does the “Heavy Duty (HD)” rating mean?

✅ It’s the drive’s continuous rating with 150% overload capacity for 60 seconds — sized for demanding starts, hoisting loads and other applications with high transient torque, rather than light, constant-load duty.

Why does the xD3000 have an external 24VDC input?

✅ It keeps the display, control circuitry, fieldbus communication and digital I/O monitoring live even when the main 3-phase supply is switched off — useful for diagnostics, parameter access or network visibility without energizing the power stage.

What built-in safety functions does it support?

✅ Five: STO, SLS, SS1, SMS and GDL. Some configurations need the additional XDSI-SIM-V01 Safety Integrity Module for extended functionality.

Which fieldbus protocols does the xD3000 support?

✅ Modbus RTU and CANopen are built in via the front RJ45 port. Modbus TCP, EtherNet/IP, PROFIBUS-DP, PROFINET, DeviceNet, EtherCAT and POWERLINK are all available as plug-in comm cards.

Does the xD3000 need a separate braking resistor?

✅ A braking unit is built in across the entire range. Depending on your duty cycle (light, medium or severe braking) and inertia, you may still need to add an external braking resistor sized to the catalog’s resistance and wattage tables — but no separate braking unit purchase is required.

Can the xD3000 control Permanent Magnet motors?

✅ Yes — alongside standard V/F and Sensorless Vector Control for induction motors, the xD3000 has a native control law for Permanent Magnet synchronous motors.

🛒 Shop the xD3000 Series

🚀 All 32 models across three voltage classes are in stock and ready to ship:

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