UE 241D Inverter Drive Power Failure Repair – South East of England

Dugard VMC1300 With HEIDENHAIN TNCi530 Control, Drives & Motors – UE 241D Inverter Drive Power Failure Repair

EEC Ltd were contacted by a customer in the South-East of England, experiencing a power failure fault on a CNC Mill. The fault was isolated to a motor/drive power failure issue on the Dugard VMC1300 3 axis CNC mill, fitted with HEIDENHAIN TNCi530 control, drives and motors.

We attended swiftly with an exchange UE 241D inverter drive. Prior to installation of the inverter drive, we diode tested the UE and Megger tested the 3 axis, spindle motors and motor power cables. These checks were carried out as a health check, but also to prove balance, shorts and any leakage, and these tested fine. The external PW210 spindle braking resistor was also checked for balance and short, this was proven to be fully functional too.

Our engineers were happy with the condition of the machine and proceeded to exchange the UE 241D without any issues. We backed up the customer’s control, ran the machine program as a test and departed with the customer pleased with the work, and was able to continue working with the Dugard mill setup.

Engineering Equipment Centre Ltd (EEC Ltd) are official HEIDENHAIN Service Partners and offer over 38 years service and experience as HEIDENHAIN and ACU-RITE distributors. We are fully trained by HEIDENHAIN GB and equipped to carry out most HEIDENHAIN and ACU-RITE installation, repair and maintenance tasks.

Please contact EEC Ltd for your HEIDENHAIN service issues M: 07971 094042 OR via our contact page Send Email Enquiry (UK only)

Megger Tester

Engineer Kris looking down at our megger tester, inspecting results during motor and power cable tests

Dugard VMC1300 3 axis CNC mill

Dugard VMC1300 3 axis CNC mill with Heidenhain TNC i530 control

 faulty UE241D

Earth leakage testing on a legacy, faulty UE241D

UE 241D

Engineer refitting the motor power cables into the exchanged UE 241D

earth wires

Fitting the earth wires after testing

Double check

Engineer double checking his work prior to the switch on

Send Email Enquiry (UK only)