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Overvoltage of the DC link section of the Power Supply (PS) was detected. (Power Supply (PS) alarm indication: 7) Power Supply (PS) selection error. (The maximum output specification of the Power Supply (PS) is exceeded.)
1 Check the selected Power Supply (PS).2 Check the input power voltage and change in power during motor deceleration. If the voltage exceeds 253 VAC (for the 200-V system) or 530 VAC (for the 400-V system), improve the power supply impedance.
Amplifier indication 11 on Beta Amplifier (Drive) Alpha power Amplifier indication 07
80% Amplifier faulty
NOTE*1 Note that the meanings of the Spindle Amplifier indications differ depending onwhich LED, the red or yellow LED, is on. When the red LED is on, the SpindleAmplifier indicates a 2-digit alarm number. When the yellow LED is on, theSpindle Amplifier indicates an error number that designates a sequence problem(for example, when a rotation command is entered with the emergency stopstate not released).See “Error Codes (Serial Spindle).”*2 For serial spindle alarms with a number not listed, refer to the followingdocuments depending on the spindle motor to which a connection is actuallymade.
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