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Does Schneider Electric offer a replacement for Berger Lahr WDM3-004?

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This document was created for customers looking for a replacement for obsolete Berger Lahr WDM3-004

Causes and Fixes

WDM3-004 Replacement Recommendations
Preface

With the discontinuation and unavailability of the WDM3-004 family of PRODUCTS there is a direct need for product replacement recommendations.
This was the reason for this product recommendation document.

The recommended Schneider Electric product for replacing the Berger Lahr / SIG Positec WDM3-004 product is two of the Schneider Electric SD326DU25S2.


It is important to realize that it will require two SD326DU25S2 drives to replace one WDM3-004. This is because the WDM3-004 is a two axis motor drive whereas the SD326 is a single axis motor drive.
Schneider Electric does not offer a two axis motor drive in a single hardware configuration.

The SD326 product dimensions are different than that of the WDM3-004 so the mounting location of the SD326 drives must be considered.
The current mounting location of your WDM3-004 product may not accommodate two SD326 PRODUCTS so please consider mounting issues prior to ordering any PRODUCTS!

Please see the product dimensions section of this document for detailed information on the product dimension differences.


Functionally two SD326DU25S2 PRODUCTS will directly replace the WDM3-004 product.

Both PRODUCTS are 3 phase stepping motor drives used in conjunction with Schneider Electric (Berger Lahr) 3 phase stepping motors.

The SD326 product features the latest in design technologies and will provide years of trouble free service.
Robust and durable, the SD326 product offering is the best choice for replacing the WDM3-004 product.



WDM3-004 overview

There are two main types of WDM3-004 PRODUCTS.

The WDM3-004.0801 is a 2.5 amp stepping motor drive designed to be used in conjunction with Schneider Electric (Berger Lahr) 3 phase LW series stepping motors rated for up to 2.5 amps. This type uses 24 volt signal inputs.

The WDM3-004.1801 is a 2.5 amp stepping motor drive designed to be used in conjunction with Schneider Electric (Berger Lahr) 3 phase LW series stepping motors rated for up to 2.5 amps. This type uses 5 volt signal inputs.

Schneider Electric offers signal cables to simplify the replacement process.
The section on accessory cables selection in this document will assist you in selecting the appropriate signal cables for your particular application.





WDM3-004 product types with identification numbers

WDM3-004.0801 Id# 64304080113 or 64304080114
3 phase 2.5 amp stepping motor drive for use on 115vac or 230vac.
Inputs for pulse, direction and gate/enable are designed for 24 volt signal level.


WDM3-004.1801 Id# 64304180113 or 64304180114
3 phase 2.5 amp stepping motor drive for use on 115vac or 230vac.
Inputs for pulse, direction and gate/enable are designed for 5 volt signal level.





Replacement cross reference WDM3-004 to SD326

For all WDM3-004 type drives use the following SD326 type

Use two pieces of SD326DU25S2 ordering number SD326DU25S2


Recommended Pulse/Direction cable selection



When replacing a WDM3-004.1801 with two SD326 drives use two of the 5 volt cables from list above based on your required length.
(One cable for each SD326 drive)
When replacing a WDM3-004.0801 with two SD326 drives use two of the 24 volt cables from list above based on your required length.
(One cable for each SD326 drive)

.5 meter 5 volt signal cable - ordering number VW3S8201R05
1.5 meter 5 volt signal cable - ordering number VW3S8201R15
3 meter 5 volt signal cable - ordering number VW3S8201R30
5 meter 5 volt signal cable - ordering number VW3S8201R50

.5 meter 24 volt signal cable - ordering number VW3S8202R05
1.5 meter 24 volt signal cable - ordering number VW3S8202R15
3 meter 24 volt signal cable - ordering number VW3S8202R30
5 meter 24 volt signal cable - ordering number VW3S8202R50

Motor cable recommendations
When replacing a WDM3-004 product with the SD326DUS2 product the existing motor cables can be used.
The motor cables will connect to the SD326DUS2 drives via terminal screws so in most cases it will not be necessary to purchase a replacement motor cable.

Please refer to the SD3 product catalogue for motor cable information in the event that your existing motor cable is damaged or needs to be replaced.
You can review SD3 catalogue for detailed information on the complete SD3 product offering including motor cables and other accessories.

Link to SD326 catalog section
http://www.schneider-electric.com/download/WW/EN/file/9915408-62307-EN-(web).pdf/?showAsIframe=true&fileName=62307-EN-(web).pdf&reference=62307-EN&docType=Catalog-Page

Link to manual for SD326
http://www.schneider-electric.com/download/WW/EN/file/27534980-SD326_manual_V203_EN.pdf/?showAsIframe=true&fileName=SD326_manual_V203_EN.pdf&reference=0198441113694-EN&docType=User-guide

Product dimensions

WDM3-004 dimensions


SD326 dimensions

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