OnSite Services
Preventive Maintenance Services
Lost productivity caused by poor performance or unplanned failure of your automation assets can significantly reduce your revenue and profitability. With a Preventive Maintenance Service Agreement, we help you design and implement the most efficient preventive maintenance program for optimizing the performance of your assets including drives, programmable logic controllers and motion systems.
What makes our Preventive Maintenance Services Agreement different?
Total protection and peace of mind with the full support of Rockwell Automation to stand behind your preventive maintenance program:
- 24/7 remote troubleshooting available to get you back online faster
- Remediation of equipment problems
- Complete documentation of all activities performed during scheduled visits
- Rockwell Automation fully warranted new or remanufactured replacement parts which ensures compatibility
- Full-service warranty that ensures we'll repair or replace the parts in the unlikely event of a failure
Preventive Maintenance Activities
| AC Drives | DC Drives | Human Machine Interface | Medium Voltage Drives | Motion Systems | Programmable Logic Controllers |
Power Off Checks
- Validate Drive, Motor and Feedback Device Nameplate Information
- Remove/open drive covers; inspect for component damage and discoloration
- Examine environment in which drive is installed. (clean, ambient temperature — visual) and record
- Inspect drive power module for arching, contamination and debris; clean and blow-out (air pressured)
- Verify cooling fans are free of contamination and rotate freely
- Examine all AC and DC power terminations; ensure connections are secure per RA Specifications; verify copper
- Examine all I/O wiring terminations; ensure connections are secure per RA Specifications
- Verify drive wiring remains in compliance with Standard Practices and RA Specifications (wire sizing, ratings, tightness)
- Verify jumpers are properly installed; remove unnecessary jumpers per RA Specifications
- Perform ground checks on drive system (Including Meggering)
- Check drive control power & AC Input protection (Breakers/Fuses) for proper ratings — Verify fuse connections are secure with no discoloration
- Perform power module checks; Resistance checks per Rockwell Automation specification; record measurements
- Review CHANGES TO WIRING — wiring diagram; compare to actual wiring; record differences
- Record condition of DC Motor Commutator — Check for threading, grooving and flashing — Record any flashing discoloration at 90 degree intervals (Possible Locked Rotor Flash
- Insure brushes are not worn beyond wear markers and movement is free in brush holders (if accessible)
- Megger Motor Armature and Fields and record readings — Insure readings are Normal (record differences, make recommendations)
Power On — Standby Checks
- Check all status indicators and LEDs on drive for proper state
- Review fault and alarm queues; record all previous faults and alarms; clear queue when complete
- Verify any installed HIM displays are functioning/displaying proper information (if applicable)
- Measure and record incoming phase-to-phase AC line voltage
- Measure and record the incoming phase-to-ground AC line voltage
- Measure and record control voltage (If 120VAC, Verify grounded neutral)
- Measure and record power supply levels
- Measure and record AC Ripple (PP MV) on DC Power Supplies to insure Power Supply Capacitors have not deteriorated
- Verify cooling fans are operating/blowing air across power module
- Upload and save drive parameters to a file — Verify backup file revision dates and equate to operating data
- Compare uploaded drive parameters with previously-saved parameter files
- Scope AC line phase-to-phase
Power On — Run Checks
- Measure and record incoming phase-to-phase AC line voltage
- Measure and record the incoming phase-to-ground AC line voltage
- Monitor and record DC motor Armature and motor field Voltage over the operational range of the machine
- Measure and record motor Armature and motor field Current over the operational range of the machine
- Monitor Current Feedback on scope to insure all SCRs (Output Devices) are firing
- Scope AC line phase-to-phase
- Scope armature waveform
- Scope field waveform
- Scope encoder or tach signal — waveform (if installed)
- Measure and Record Field Voltage
- Measure and Record Field Current
- Observe Motor during operation — Check for any brush sparking and record degree
Consultation and Remediation
- Review Maintenance & Operator Logs
- Review onsite spare parts availability
- Review installed equipment revisions and compare against any known PSAs
- Perform maintenance & record