Rockwell Automation Allen-Bradley PowerFlex 6000, Руководство пользователя

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122 Rockwell Automation Publication 6000-UM002G-EN-P - August 2022
Chapter 5 Preventative Maintenance and Component Replacement
Inspect Locking and Interlocking Devices
Check these devices to verify proper working condition. Make any necessary
replacements only with Allen-Bradley renewal parts or kits. Adjust or repair
only in accordance with Allen-Bradley instructions found in the product User
Manuals.
Connections
Inspect LV Component Terminal and Plug-in Connections
All LV control connections must be secure. Check for dirt, debris, or foreign
material, and clean with anti-static cloth if necessary.
Check relays, contactors, timers, terminal connectors, circuit breakers, ribbon
cables, control wires, and so on. Check for corrosion, excessive temperature, or
contamination. Clean all components using a vacuum cleaner.
Inspect Medium Voltage Cable Connections
Verify that all MV power cable connections and grounding cables are torqued
to specification. Apply torque sealer where necessary. Check for corrosion,
excessive temperature, or contamination.
Inspect Power Cable and Control Wire Terminals
Loose connections in power circuits can cause overheating that can lead to
equipment malfunction or failure. Loose connections in control circuits can
cause control malfunctions. Loose bonding or grounding connections can
increase hazards of electrical shock and contribute to electromagnetic
interference (EMI). Check the tightness of all terminals and bus bar
connections and tighten securely any loose connections. Replace any parts or
wiring that is damaged by overheating, and any broken wires or bonding
straps. See
Torque Requirements on page 135 for torque values required for
power cable and bus hardware connections.
Inspect Transformer Secondary Windings
Check the Incoming Line Power Cable connections (L1, L2, and L3), the
Outgoing Motor Power Cable connections (U, V, W), and the Isolation
Transformer Power Cable Connections are torqued to specifications. See
Figure 16 .
Inspect the bus bars and cable connections. Check for any signs of overheating
/ discoloration and tighten the bus connections to the required torque
specifications. Clean all cables and bus bars that exhibit dust build-up. Check
for corrosion, excessive temperature, or contamination.
Inspect LV Component Terminal and Plug-in Connections 122
Inspect Medium Voltage Cable Connections 122
Inspect Power Cable and Control Wire Terminals 122
Inspect Transformer Secondary Windings 122
Inspect Power Module Input and Output Power Connections 123