Rockwell-automation 1560E SMC Flex Smart Motor Controller Uživatelský manuál Strana 137

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Troubleshooting 9-19
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To Remove SCR:
Remove shorting bar hardware
Pry opposing Heatsinks apart
ExtractSCR
To Insert New SCR:
Apply thin film of electrical joint compound to
surfaces of SCR
Install SCR so that it is seated in locating pin of
heatsink (note orientation of SCR).
Pry heatsinks to close gap, ensuring that SCR is
seated properly in both its locating pins.
Rotate SCR so that all leads have same direction.
Shorting Bar Hardware
SCR1
Heatsink 2
Heatsink 1
Locating Pin
Heatsink 3
SCR2
To Remove SCR:
Remove shorting bar hardware
Pry opposing Heatsinks apart
ExtractSCR
To Insert New SCR:
Apply thin film of electrical joint compound to
surfaces of SCR
Install SCR so that it is seated in locating pin of
heatsink (note orientation of SCR).
Pry heatsinks to close gap, ensuring that SCR is
seated properly in both its locating pins.
Rotate SCR so that all leads have same direction.
Shorting Bar Hardware
SCR1
Heatsink 2
Heatsink 1
Locating Pin
Heatsink 3
SCR2
Figure 9.7 – Removal of SCR (1000 to 2400 V, 180/360 A)
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