ABB DCS880 Drive
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Dec 25, 2021 6:15 am
How can resolve problem A120 Over voltage protection active warning In ABB DCS880 ?
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Dec 25, 2021 6:15 am
Overvoltage protection DCF806 is active and the drive is blocked.
The firing angle is forced to 150° and single firing pulses to
suppress the DC current are given.
Check:
− The setting of 20.47 Overvoltage protection trigger source if
necessary invert the signal.
− The field converter cables and connections.
