- Hitachi Seiki TF15
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Hitachi Seiki TF15
Hi Folks,
I have Hitachi Seiki TF15 with 2 alarms on the screen:
906 PCU Circuit protector in the 3rd axis is in OFF position,
890 Regenerative Resistor in the 3rd axis overheated,
I followed schematic in maintenance manual and cannot see a standalone unit identified as PCU. All units/ drives seems to be NEC ADU.
I noticed the black plastic switch under spindle drive unit was OFF. When moved to ON position I got 802 alarm.
Not sure where to go next? I have attached solutions as per manual.
Hopefully someone can put me in a right direction
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- Hitachi Seiki TF15
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