Almost every business spends hefty amount and time while setting up their safety programs, procedures, and protections. However, these similar businesses will not vacillate to send an under-trained technician for working on product which could result in severe injury.
Although hazards vary from site to site and application to application, there are lots of things to consider when trying to carry out electrical maintenance. CM Industry Supply Automation – VFD, Servo Drive & Servo Motor Expert says “Medium voltage (MV) VFD poses high risks with those who are not familiar with their operation because this product looks to be less understood”. VFDs or any electrical devices can be highly dangerous if they are not installed by the properly trained professionals and not protected with suitable PPE for the job. Properly Locked out / Tagged out devices, which has been confirmed to be de-energized, will help ensuring a secure working environment for devices and your workers.
What are the essential service maintenance period for Medium Voltage VFDs?
Medium Voltage VFD maintenance programs must be established and executed considering some main parts such as.
Operation criticality
Downtime expenditure
Environment cleanliness
Right sized VFD designed for the application
Usually, it is recommended to perform two levels of maintenance i.e.
Weekly, monthly or quarterly. It all depends on environment and conditions of operations. It can be executed by operator or electrician since there is no necessity to access the drive internals or live parts.
It’s essential to carry out cleaning and review of all filter media in AC ventilation system
Environment cleanliness is also essential for long term operations
Visual and audible inspections are also essential for any problematic issues.
Yearly complete system examination, cleaning and operation verification, often executed by trained and skilled / qualified professional only.
Perform full examination of all power connections, wiring and connectors to check out heat damage or loose connections signals.
Authenticate all control and power connections tightness and flexibility
All power parts cleaning to ensure right ventilation or cooling
Authenticate all power fuses for right connections and steadiness
Authenticate fan process is free and un blocked without any visual or audible problems
Carry out full examination of all control connections and PCB’s (Printed Circuit Boards) for identifying any irregular discoloration or loose connections
Authenticate right connections of entire fiber optic cables and connectors
Authenticate all heat sinks dirt, debris, or foreign matter freeness
Authenticate programming, parameter settings and full operations
Carry out motor and cables megger testing to confirm insulation to ground integrity.
When will VFD need a CM Industry Supply Automation trained technician help?
Many devices need an authorized technician to install the VFD for validating a warranty, or extending the usual duration. It’s not rare to see manufacturer’s like Lenze Drive, Siemens Drive, Keb Drive, Yaskawa Drive and more extend their warranty when they know it was installed by trained and trusted technician. Many warranties also need preventative maintenance by the same experts at regular intervals. The technician expert cost can often pay off in the long run as it prevents upcoming issues from becoming costly headaches to keep them under warranty.
Get all industrial automation products sales & repair services. Call us for Lenze Drive, Keb Drive, Siemens, Allen-Bradley equipment sales and repair services.
CM Industry Supply Automation are supplier and repair services provider of drives, VFD drive (variable frequency drive), VSD (variable speed drive), inverter, frequency converter, ac drive, servo drive, servo motor, industrial drives, industrial drives and controls, industrial drives and applications, high-power servomotor, high torque DC servo motor, high-power servo drives, high frequency drives, of some well-known brands that include:
Siemens Drive, Rexroth Drive, Elau Drive, Vacon Drive, Baumuller drive, Danfoss drive, Parker drive, Mitsubishi VFD drive, Sprint drive device, Allen Bradley drive, ABB drive, Rockwell VFD Drives, AB Powerflex drive, Kendrion, Intorque, Ntorq company Yaskawa drive, Fanuc drive, Weg drive, Toshiba drive, Hitachi drive, Gefran servo drive, INVT servo drive, INVT drive, INVT Servo Drive, Inovance drive & more.
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