Panasonic MINAS A6 Multi Series - 6.8 Deterioration Diagnosis Warning Function

6.8Deterioration diagnosis warning function
6-23
6.8 Deterioration diagnosis warning function
This is a function to check the changes in motor and connected equipment characteristics to output
deterioration diagnosis warning.
Relevant parameters
 Relevant parameters
Class
No.
Attribute
Title
Range
Unit
Function
5
66
A
Deterioration diagnosis
convergence judgment
time
0 to 10000
0.1 s
Sets the time required to deem that Real-time auto tuning
load characteristics estimate has converged when
deterioration diagnosis warning function is activated
(Pr6.97 bit 1 = 1).When the set value is 0, it will be set
automatically inside the driver in accordance with Pr6.31
(Real time auto tuning convergence velocity).
When Pr6.31 (Real time auto tuning convergence
velocity) = 0, the deterioration diagnosis warning
judgment for load characteristics estimate will be invalid.
5
67
A
Deterioration diagnosis
inertia ratio upper limit
value
0 to 10000
%
Sets the upper and lower limit values for inertia ratio
estimate in deterioration diagnosis judgment when
deterioration diagnosis warning is valid (Pr6.97 bit 1 = 1)
and load characteristics estimate convergence has been
completed.
The set resolution shall be in units of 0.2%.
5
68
A
Deterioration diagnosis
inertia ratio lower limit
value
5
69
A
Deterioration diagnosis
unbalanced load upper
limit value
-1000 to 1000
0.1 %
Sets the upper and lower limit values for unbalanced load
estimate in deterioration diagnosis judgment when
deterioration diagnosis warning is valid (Pr6.97 bit 1 = 1)
and load characteristics estimate convergence has been
completed.
The set resolution shall be in units of 0.2%.
5
70
A
Deterioration diagnosis
unbalanced load lower
limit value
5
71
A
Deterioration diagnosis
dynamic friction upper
limit value
-1000 to 1000
0.1 %
Sets the upper and lower limit values for dynamic friction
estimate in deterioration diagnosis judgment when
deterioration diagnosis warning is valid (Pr6.97 bit 1 = 1)
and load characteristics estimate convergence has been
completed.
The set resolution shall be in units of 0.2%.
5
72
A
Deterioration diagnosis
dynamic friction lower
limit value
5
73
A
Deterioration diagnosis
viscous friction upper
limit value
0 to 10000
0.1 %/
(10000
r/min)
Sets the upper and lower limit values for viscous friction
coefficient estimate in deterioration diagnosis judgment
when deterioration diagnosis warning is valid (Pr6.97 bit
1 = 1) and load characteristics estimate convergence has
been completed.
The set resolution shall be in units of 0.2%.
5
74
A
Deterioration diagnosis
viscous friction lower
limit value
5
75
A
Deterioration diagnosis
velocity setting
-20000 to
20000
r/min
Outputs deterioration diagnosis velocity output (V-DIAG)
when deterioration diagnosis warning is valid (Pr6.97 bit
1 = 1) and the motor velocity is within the range of Pr5.75
± Pr4.35 (velocity coinciding width).
Deterioration diagnosis velocity output has a 10 [r/min]
hysteresis.
5
76
A
Deterioration diagnosis
torque average time
0 to 10000
ms
Sets time required to calculate the torque command
average value when deterioration diagnosis warning is
valid (Pr6.97 bit 1 = 1) and diagnosis velocity output
(V-DIAG) is ON.
 Time from diagnosis velocity output (V-DIAG) ON to the
start judgment for upper and lower value of torque
command average value is also a part of the set time for
this parameter.
 If the setting value is 0, the torque command average
value is not calculated.
(To be continued)