Vibration Detection Level Initialization (Fn01B) - YASKAWA SGMJV User Manual

7.16 Vibration Detection Level Initialization (Fn01B)

This function detects vibration when servomotor is connected to a machine and automatically adjust the vibra-
tion detection level (Pn312) to output more exactly the vibration alarm (A.520) and warning (A.911).
The vibration detection function detects vibration elements according to the motor speed.
Parameter
n.
Pn310 n.
n.
If the vibration exceeds the detection level calculated by the following formula, the alarm or warning will be
output according to the setting of vibration detection switch (Pn310).
Detection level =
<Remarks>
• Use this function if the vibration alarm (A.520) or warning (A.911) is not output correctly when a vibration
above the factory setting vibration detection level (Pn312) is detected. In other cases, it is not necessary to
use this function.
• The vibration alarm or warning detection sensibility differs depending on the machine conditions. In this
case, a detection sensibility fine adjustment can be set in the detection sensibility Pn311.
(1) Operating Procedure
Follow the steps to initialize the parameter Pn312.
Display after
Step
Operation
1
2
3
Meaning
0 Does not detect vibration [Factory setting]
Outputs the warning (A.911) when vibration is
1
detected.
2
Outputs the alarm (A.520) when vibration is detected.
Vibration detection level (Pn312[min
• The vibration may not be detected because of improper servo gains. Also, not all
kinds of vibrations can be detected. Use the detection result as a guideline.
• Set a proper moment of inertia ratio (Pn103). Improper setting may result in the vibra-
tion alarm, warning misdetection, or non-detection.
• The references that are used to operate your system must be input to execute this
function.
• Execute this function under the operation condition for which the vibration detection
level should be set.
• Execute this function to set the vibration detection level while the motor speed
reaches at least 10% of its maximum.
Keys
MODE/SET DATA/
MODE/SET DATA/
MODE/SET DATA/

7.16 Vibration Detection Level Initialization (Fn01B)

When Enabled Classification
Immediately
-1
]) × Detection sensibility (Pn311[%])
100
Operation
Press the MODE/SET Key to select the utility function
mode.
Press the UP or DOWN Key to select Fn01b.
Press the DATA/SHIFT Key for approximately one second.
The display shown on the left appears.
Note: When "no-oP" blinks for approximately one second,
the write prohibited setting is set in Fn010. Change
the setting in Fn010, and press the key again after
enabling writing. (Refer to 7.12.)
Setup
7
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