KFAS: Fanuc CNC Parts, Service, & Repair
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A06B-6079-H208 SVM2-80/80
Dimensions (H 380 x W 90 x D 307 mm)
Rated Input: 283-325VDC 9.5 kW
Rated Output Current: L axis 18.7A, M axis 18.7A
A06B-6079-H208 Alarms Meaning and action to be taken
Alarm Meaning
1
Internal Fan Stopped (FAL)
2
Low control power voltage (LV5V)
5
Low DC link voltage (LVDC)
8
L-axis over-current (HCL)
9
M-axis over-current (HCM)
A
N-axis over-current (HCN)
b L
& M-axis over-current
C M
& N-axis over-current
d L
& N-axis over-current
E
L, M, N -axis over-current
8.
L-axis IPM alarm (IPML)
9.
M-axis IPM alarm (IPMM)
A.
N-axis IPM alarm (IPMN)
b. L
& M-axis IPM alarm
C. M
& N-axis IPM alarm
d. L
& N-axis IPM alarm
E.
L, M, N-axis IPM alarm
Fanuc Servo Amplifier A06B-6079-H208 Alarm 8, Alarm 9, or Alarm A indicates high current or short circuit in the servo amplifier or motor.
Troubleshooting Steps for Alarm-8, Alarm-9, or
Alarm-A
(1) Power off the machine. Remove the power line wires from the servo amplifier
terminals, and be sure to place them so that there is no chance or shorting out
something in the electrical cabinet. Power ON the machine/ control and release
an emergency stop. If an abnormal current alarm occurs, go to (3). If not, go to
(2).
(2) Check for insulation between PE and each of the removed power wires U, V,
and W. Good/ acceptable insulation is in the order of several HUNDRED MEGA
OHMS or higher.
If not, disconnect the power wires from the motor. Then check for
insulation again between PE and each of the U, V, and W terminals on the motor
itself. If there is a short circuit between PE and U, V, or W of the
motor, replace the motor. If motor insulation is tested good, replace the motor
power wires.
A06B-6079-H208 is typically used with Fanuc 16MC, 16MA, 18TA, 18MC, 21TB,
16TB, 18TB, and 21MB controls.
Typically found on machines such as Dainichi
F25M, Mori Seiki SL-250
Fanuc Alpha Servo A06B-6079-H208 features
・high power and high acceleration due to optimum winding design and effective cooling structure.
・Increased torque at low speed range
・High precision and high resolution pulse coder feedback (1000000 pulses/revolution)
・Available with both 200V input and 400V input
・Compact size with latest intelligent Power Module
(IPM) technology.
・Utilize power source regeneration technology to return regeneration energy of the motor to a power source.
Compared with the resistor regeneration, power consumption is largely reduced.
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