The Z-axis amplifier (SVM) is showing [e.g., 8, 9, or A] on the 7-segment display. Diagnostic Screen: DGN 200: [e.g., 00010000] DGN 204: [e.g., 01000000] Steps Taken So Far:
(alarm 414 servo alarm) y-axis detect error? - Fanuc - Industry Arena
Simultaneously, check the servo amplifier itself. The amplifier's LED display shows a numeric code that corresponds to the diagnostic bits. Common codes include: fanuc 414 servo alarm z axis detect error repack
The feedback device (pulse coder) on the motor might be failing, producing an erratic or weak signal that the amplifier cannot process. 4. Overload/Mechanical Binding
: The most common cause is a "high current alarm" (codes 8, 9, or A on the amplifier display), signifying excessive current flowing through the power module. Detection Error The Z-axis amplifier (SVM) is showing [e
Signals internal communication errors or link errors between the CNC control board and the amplifier module.
: Bit #4 (HCA) indicates abnormal current; Bit #5 (OVC) indicates overcurrent. The amplifier's LED display shows a numeric code
Ultimate Guide to Resolving the Fanuc 414 Servo Alarm (Z-Axis Detection Error)
Fanuc 414 Servo Alarm on the Z-axis is a common but critical "detection error" that indicates a fault within your digital servo system. While it often points toward high current issues (Alarms 8, 9, or A on the amplifier), it can also stem from mechanical strain or cable failures.