beautypg.com

Special adjustment functions – MITSUBISHI ELECTRIC MELSERVO MR-J2S- A User Manual

Page 183

background image

8 - 2

8. SPECIAL ADJUSTMENT FUNCTIONS

You can use the machine resonance suppression filter 1 (parameter No. 58) and machine resonance
suppression filter 2 (parameter No. 59) to suppress the vibration of two resonance frequencies. Note
that if adaptive vibration suppression control is made valid, the machine resonance suppression filter
1 (parameter No. 58) is made invalid.

Mechanical
system
response
level

Machine resonance point

Frequency

Notch
depth

Parameter No. 58

Parameter No. 59

Frequency

POINT

The machine resonance suppression filter is a delay factor for the servo

system. Hence, vibration may increase if you set a wrong resonance
frequency or a too deep notch.

(2) Parameters

(a) Machine resonance suppression filter 1 (parameter No. 58)

Set the notch frequency and notch depth of the machine resonance suppression filter 1 (parameter
No. 58)
When you have made adaptive vibration suppression control selection (parameter No. 60) "valid" or
"held", make the machine resonance suppression filter 1 invalid (parameter No. 58: 0000).

3

1
2

0

( 14dB)

( 8dB)

00
01
02
03
04
05
06
07

Invalid

4500
2250

08
09

0A
0B
0C
0D

0E
0F

10
11
12
13
14
15
16
17

18
19

1A
1B
1C
1D

1E
1F

1500
1125

900
750
642.9

500
450

409.1

375

346.2
321.4

300

562.5

281.3
264.7
250
236.8
225
214.3
204.5
195.7

187.5
180
173.1
166.7
160.1
155.2
150
145.2

Frequency

Setting
value

Frequency

Frequency

Frequency

Parameter No. 58

Notch frequency

Notch depth

Setting
value

Depth (Gain)

Deep ( 40dB)

Shallow( 4dB)

Setting
value

Setting
value

Setting
value