ABB DCS880 - Page 29

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Exchange thyristors size H4T
3ADW000803R0101 DCS880 H4T (Tosa) manual en a
9.
Remove all cables and plugs at
the SDCS-PIN-H41:
− X1G … X6G gate leads.
− X1 ground.
10. Remove all cables and plugs at
the SDCS-PIN-H51:
− X1E ground.
− XC1 and XD1 DC voltage
measurement.
− XU1, XV1, XW1 mains
voltage measurement.
− X22 temperature sensor.
− X231 and X251 current
transformers.