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9 MANUFACTURER FUNCTIONS
9.3 Machine diagnosis function
9.3
Machine diagnosis function
From the data in the servo amplifier, this function estimates the friction and vibrational component of the drive system in the
equipment, and recognizes an error in the machine parts, including a ball screw and bearing. The information of the machine
diagnosis function can be obtained with the following objects.
9.4
Servo amplifier life diagnosis function
You can check the cumulative energization time and the number of on/off times of the inrush relay from the data in the servo
amplifier. This function gives an indication of the replacement time for parts of the servo amplifier including a capacitor and a
relay before they malfunction. The information of the servo amplifier life diagnosis function can be obtained with the following
objects.
Index
Sub
Access
Name
Data
Type
Default
Description
2C20h
0
ro
Machine diagnostic status
U16
Refer to section 10.1.
2C21h
0
ro
Static friction torque at forward
rotation
I16
The static friction at forward rotation torque is displayed
in increments of 0.1%.
2C22h
0
ro
Dynamic friction torque at forward
rotation (at rated speed)
I16
The dynamic friction at forward rotation torque at the
rated speed is displayed in increments of 0.1%.
2C23h
0
ro
Static friction torque at reverse
rotation
I16
The static friction at reverse rotation torque is displayed
in increments of 0.1%.
2C24h
0
ro
Dynamic friction torque at reverse
rotation (at rated speed)
I16
The dynamic friction at reverse rotation torque at the
rated speed is displayed in increments of 0.1%.
2C25h
0
ro
Oscillation frequency during
motor stop
I16
The vibration frequency during stop and servo-lock is
displayed in increments of 1 Hz.
2C26h
0
ro
Vibration level during motor stop
I16
The vibration level during stop and servo-lock is
displayed in increments of 0.1%.
2C27h
0
ro
Oscillation frequency during
motor operating
I16
Vibration frequency during operation is displayed in
increments of 1 Hz.
2C28h
0
ro
Vibration level during motor
operating
I16
The vibration level during operation is displayed in
increments of 0.1%.
Index
Sub
Access
Name
Data
Type
Default
Description
2C18h
0
ro
Power ON cumulative time
U32
The cumulative energization time of the servo amplifier is
returned.
2C19h
0
ro
Number of inrush relay on/off
times
U32
The number of on/off times of the inrush relay of the
servo amplifier is returned.
During estimation
2C20h
2C21h/2C22h
2C23h/2C24h
2C25h to 2C28h
Friction estimation status at forward rotation
Friction estimation status at reverse rotation
Vibration estimation status
Estimation completed
Estimation completed
During estimation
Estimation completed
During estimation
Undefined value
Estimated value
Undefined value
Estimated value
Undefined value
Estimated value
Bit 0 to Bit 3
Bit 4 to Bit 7
Bit 8 to Bit 11