Lenze 325332 493 E 3e – DC Motor Speed Controller
Het item werd toegevoegd aan uw offerteaanvraag
Product Information
The Lenze 325332 (Model 493 E 3e) is an industrial 1-quadrant DC motor speed controller belonging to the Lenze 490 Series. Designed for controlling three-phase powered DC shunt and permanent-magnet motors, this unit utilizes a fully controlled B6C thyristor bridge topology to provide reliable single-direction armature speed regulation. Powered by a standard 400 V AC three-phase supply with an allowable input range of 360 V AC to 440 V AC at 50/60 Hz, the controller delivers an armature output voltage of up to 460 V DC and supports continuous armature current up to 35 A.
Connecting and commissioning a replacement Lenze 325332 drive requires matching the hardware terminal connections and adjusting physical onboard controls rather than software programming. The controller interfaces with external systems via standard analog setpoint inputs of 0 to 10 V or ±10 V and supports feedback from a DC tachometer generator or internal IxR compensation. Putting a replacement unit into service involves setting the hardware potentiometers and jumpers to match the original parameters, including maximum speed (nmax), minimum speed (nmin), maximum armature current (I_max), acceleration and deceleration ramp times, and speed regulation response. ABC Industrial Parts can support maintenance teams requiring tested spare units to replace existing legacy controllers with minimal downtime.
Operational monitoring and troubleshooting are supported through integrated front-panel LED indicators and status outputs. The drive features three direct status LEDs for Betrieb / Ready, Störung / Fault, and I_max / Current Limit, alongside a potential-free relay contact that signals ready and fault states to higher-level automation controllers. Basic troubleshooting starts with checking the main 400 V AC power supply, verifying analog setpoint and tacho feedback signal connections, and confirming that armature current limits are not continuously exceeded. If the Störung LED indicates an unresettable internal trip or hardware failure, internal repairs or sourcing a verified replacement drive through ABC Industrial Parts provides the fastest path to restoring system operation.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 325332 |
| Model / Type | 493 E 3e |
| Product Family | 490 Series |
| Component Type | DC Motor Speed Controller |
| Supply Voltage | 400 V AC |
| Supply Voltage Range | 360 V AC - 440 V AC |
| Mains Frequency | 50/60 Hz |
| Armature Output Voltage | 460 V DC |
| Armature Output Current | 35 A |
| Control Method | 1-Quadrant Thyristor Drive (B6C Bridge) |
| Feedback Method | DC Tachometer / IxR Compensation |
| Analog Setpoint Input | 0 to 10 V / ±10 V |
| Status Output | Potential-free Relay Contact (Ready/Fault) |
Programming and Configuration
Setup and tuning of the Lenze 325332 493 E 3e drive are completed directly on the hardware board without software tools or digital programming interfaces. Calibrations are set using onboard potentiometers and jumpers that govern core operating thresholds and drive dynamics.
Commissioning parameters include adjustments for maximum motor speed (nmax), minimum motor speed (nmin), peak armature current limit (I_max), and acceleration and deceleration ramp rates. Technicians can fine-tune IxR compensation to maintain steady motor speed under changing load conditions when operating without tachometer feedback.
Communication and System Integration
System integration with the Lenze 325332 relies on standard analog and discrete signal interfaces. Speed references are commanded using 0 to 10 V or ±10 V analog setpoint inputs from supervisory controllers or manual speed potentiometers.
Feedback integration supports direct wiring to a DC tachometer generator for closed-loop speed regulation. For remote monitoring and safety interlocks, a potential-free relay contact provides status indication to external control systems, reporting operational readiness and fault conditions.
Diagnostics and Status Indication
Diagnostic monitoring for the 493 E 3e drive is handled through front-panel status LEDs and relay signaling. Real-time indication of operational state, current limiting, and trip conditions allows technicians to assess system performance without external diagnostic devices.
The potential-free relay contact switches state to indicate fault conditions such as overcurrent, thermal overload, or phase loss, enabling automated shut-off sequences in connected machinery.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Betrieb / Ready | Solid | Operational readiness active; device is powered and enabled |
| Störung / Fault | Solid | Fault trip active (overcurrent, phase failure, or thermal overload); indicates drive output inhibition or hardware failure requiring reset |
| I_max / Current Limit | Solid | Armature current limit reached; drive operates in current limiting mode |
Replacement and Spare Part Considerations
Replacing an existing Lenze 325332 493 E 3e module with a replacement unit requires a direct transfer of physical settings. Before installing a spare unit, technicians should document and replicate all potentiometer positions and jumper configurations from the original drive.
Ensure that supply voltage, armature current demand, and feedback configuration (DC tacho or IxR compensation) match the drive's 400 V AC input and 35 A DC output ratings. Correct alignment of acceleration and deceleration ramps and current limits protects connected mechanical equipment during startup.
Frequently Asked Questions
What software is required to configure the Lenze 325332 493 E 3e drive?
No software programming tools are required. Configuration and parameter adjustments are performed directly on the controller board using onboard potentiometers and jumpers.
What are the electrical supply and armature output ratings of the Lenze 325332?
The controller operates on a 3-phase 400 V AC supply (360 V to 440 V AC range at 50/60 Hz), providing a maximum armature output voltage of 460 V DC and continuous armature current up to 35 A.
How does the Lenze 325332 maintain speed stability under changing loads?
The unit maintains precise speed regulation using either DC tachometer generator feedback or adjustable IxR compensation.
What visual diagnostics are available on the front panel of the Lenze 325332?
The front panel features three status LEDs: Betrieb / Ready (operational state), Störung / Fault (fault trip active), and I_max / Current Limit (armature current limit reached).
What steps are required when installing a spare Lenze 325332 controller?
When replacing a unit, replicate the potentiometer settings (nmax, nmin, I_max, ramp times) and jumper configurations from the original drive onto the replacement unit to ensure identical dynamic behavior.
Take advantage of our exchange formula
A defective product does not have to be worthless. At ABC Industrial Parts, you can hand in defective products and immediately benefit from a discount on your new purchase. This is a smart way to save money while contributing to a circular economy.
Play it safe with our warranty conditions
Industrial plants prefer to keep running invariably, no matter what. Therefore, it is essential that you can rely on high-quality products and/or sustainable repairs. With our warranty conditions, you can count on certainty, whether you choose new, used or repaired products.
Data backup and recovery
Have you lost valuable parameters or data due to a malfunction while the manufacturer no longer provides support? At ABC Industrial Parts, we help you secure this data, both for common and specific products.
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.
Product photos are for illustration purposes only and may differ from the actual product delivered.
Some of the content on this page was created with the help of AI. While we strive to provide accurate and up-to-date information, errors may occur.