Parker LVD1 - Page 41

Parker Hannifin S.p.A. - Divisione S.B.C. LVD User’s Manual
41
CALIBRATION WITHOUT INSTRUMENTS
If an oscilloscope is not available, proceed as follows:
A) Calculate the value of Pr16 as described earlier.
B) Calculate Pr17 using the following formula:
Pr
. Pr
17 1488
13541 16
= ⋅
⋅ ⋅ J
Nm
tot
peak
where: J
tot
is total inertia (motor + load) in kgm
2
Nm
peak
is available torque at drive peak current
C) Start the drive and, moving the axis with an external control change Pr17 to seek the value
at which the axis moves as required.
D) Calculate the value of Pr18 using the following formula:
Pr .
Pr
Pr
18 017
17
16
= ⋅
If the result is less than 1, set Pr18 to 1.
If the resulting calibration is unsatisfactory, repeat the procedure with lower values for Pr16.