Lenze 2/7118/2161 492_E.4D DC Motor Controller
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Product Information
The Lenze 2/7118/2161, designated as model 492_E.4D, is an analog DC motor controller and field regulator within the Lenze 490 Series product family. Built for speed regulation and field current control of small to medium brushed DC motors, this unit operates on a single-phase AC supply ranging from 180 V AC to 264 V AC at 48 to 62 Hz, with a nominal supply rating of 230 V AC. It provides a continuous DC output current of 4 A and delivers up to 200 V DC maximum output voltage to suit dynamic industrial drive applications such as packaging machines, conveyors, and textile processing equipment.
Field connection and integration are handled via robust screw terminals that accommodate main power, motor armature and field circuits, and analog setpoint inputs. The controller supports setpoints supplied either by an external 0 to 10 V DC signal or a 5 kΩ potentiometer, alongside dedicated digital inputs for controller enable and release control. Putting a spare unit into service does not require specialized programming tools or software; parameter configuration is executed directly on the hardware using front-panel trimmer potentiometers and internal jumper settings. When preparing a replacement unit, ABC Industrial Parts provides technical support to help ensure appropriate trimmer alignment and setup matching.
Basic operational status is provided by an integrated READY / POWER indicator LED located on the front panel. A solid LED confirms that main voltage is applied and internal control power is functioning, whereas an unlit LED points directly to a missing line supply or an open internal fuse. System checks and verification of armature voltage, field current, setpoint levels, and feedback signals can be carried out using a standard multimeter across the screw terminals. When internal circuit issues occur that cannot be resolved through external adjustment, replacing the board with a tested spare unit from ABC Industrial Parts provides a direct method to minimize machine downtime.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 2/7118/2161 |
| Model / Type | 492_E.4D |
| Product Family | 490 Series DC Drives |
| Component Type | DC Motor Controller |
| Nominal Supply Voltage | 230 V AC |
| Supply Voltage Range | 180 - 264 V AC |
| Supply Frequency | 48 - 62 Hz |
| Continuous Output Current | 4 A DC |
| Maximum Output Voltage | 200 V DC |
| Control Method | Analog Speed and Field Control |
| Setpoint Input | 0 - 10 V DC or 5 kΩ Potentiometer |
| Termination Type | Screw Terminals |
Programming and Configuration
The Lenze 492E.4D controller eliminates the need for software programming tools by utilizing purely analog, hardware-based calibration. Operating parameters are configured using adjustable trimmers situated on the front panel of the unit. These potentiometers allow precise setting of maximum continuous current (Imax), maximum DC output voltage limit (U_max), acceleration ramp rate, deceleration ramp rate, and IxR compensation for load-dependent speed stabilization.
During commissioning or unit replacement, physical jumper positions must be aligned alongside trimmer calibration. Digital control logic is managed through dedicated enable and release terminals connected to the machine's safety and run circuits. Fine adjustments to current limits and ramp times can be monitored live during bench setup or installation using standard electrical measurement instruments on the termination points.
Communication and System Integration
System interfacing on the Lenze 2/7118/2161 relies on direct analog and digital signaling via integrated screw terminals. The speed command setpoint is accepted through a 0 to 10 V DC input signal from a higher-level controller or directly via a standard 5 kΩ speed adjustment potentiometer.
Digital control integration is established through direct wiring to the controller enable and controller release terminal inputs. These signals integrate into automated machine control circuits, ensuring controlled enabling and stopping sequences without requiring digital fieldbus networks.
Diagnostics and Status Indication
Diagnostic feedback for the Lenze 2/7118/2161 is supplied through a front-mounted LED indicator and direct terminal test points. The READY / POWER LED offers immediate status verification of the incoming single-phase power supply and internal control voltage status.
Detailed troubleshooting is performed using a standard multimeter across the screw terminals. Technical checks include evaluating the 0 to 10 V DC setpoint voltage, measuring DC voltage across the motor armature and field terminals, and checking current feedback values to verify load response and drive health.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| READY / POWER | Solid | Indicates mains voltage present and internal supply operational; OFF indicates missing power supply or internal fuse blown |
Replacement and Spare Part Considerations
The Lenze 2/7118/2161 (492_E.4D) serves as a direct drop-in hardware replacement for matching units within the Lenze 490 Series DC drive systems. When exchanging a unit, technicians must ensure that the replacement controller matches the 230 V AC supply requirements and the 4 A DC output capability of the original drive installation.
Because settings are retained physically rather than digitally, commissioning a spare unit requires duplicating the trimmer positions (Imax, Umax, acceleration, deceleration, and IxR compensation) and jumper settings from the original board. Verifying incoming AC line voltage (180 to 264 V AC) and checking internal line fuses before power-up prevents damage to replacement electronics.
Frequently Asked Questions
What software is needed to configure the Lenze 2/7118/2161?
No software or programming cable is required. Operating parameters such as maximum current, voltage limits, ramp times, and IxR compensation are configured manually via front-panel trimmer potentiometers.
What setpoint signals are compatible with the 492_E.4D controller?
The controller accepts either a standard 0 to 10 V DC analog setpoint signal or an external 5 kΩ speed potentiometer connected to its screw terminals.
What does an unlit READY / POWER LED mean?
An unlit READY / POWER LED indicates that AC mains power is not reaching the unit or that an internal fuse has blown.
What are the power supply requirements for this DC controller?
The Lenze 2/7118/2161 operates on a single-phase AC supply rated nominally at 230 V AC, with an allowable voltage range of 180 V AC to 264 V AC at 48 to 62 Hz.
What output current and voltage does the drive deliver?
The drive provides a continuous output current of up to 4 A DC and a maximum DC output voltage of 200 V DC when connected to a 230 V AC nominal supply.
How are settings transferred when installing a replacement Lenze 2/7118/2161?
Parameters are transferred by copying the physical jumper configurations and measuring or matching the front-panel trimmer positions for current, voltage limits, acceleration/deceleration ramps, and IxR compensation from the existing unit.
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Specific firmware and hardware versions
If you are working with specific hardware or firmware versions that are no longer available from the manufacturer, ABC Industrial Parts is your partner. When making your enquiry, clearly state which versions you need, we will then look at the possibilities of supplying those versions, so that your installations continue to function optimally.
Disclaimer:
We are not an authorised distributor of Lenze.
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