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Parameters – MITSUBISHI ELECTRIC MELSERVO MR-J2S- A User Manual

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5. PARAMETERS

Class

No.

Symbol

Name and function

Initial
value

Unit

Setting

range

Control

mode

Analog speed command offset

Used to set the offset voltage of the analog speed command (VC).
For example, if CCW rotation is provided by switching on forward
rotation start (ST1) with 0V applied to VC, set a negative value.
When automatic VC offset is used, the automatically offset value is
set to this parameter. (Refer to Section6.3.)
The initial value is the value provided by the automatic VC offset
function before shipment at the VC-LG voltage of 0V.

S

29

VCO

Analog speed limit offset

Used to set the offset voltage of the analog speed limit (VLA).
For example, if CCW rotation is provided by switching on forward
rotation selection (RS1) with 0V applied to VLA, set a negative value.
When automatic VC offset is used, the automatically offset value is
set to this parameter. (Refer to Section6.3.)
The initial value is the value provided by the automatic VC offset
function before shipment at the VLA-LG voltage of 0V.

Depends

on servo

amplifier

mV

999

to

999

T

Analog torque command offset

Used to set the offset voltage of the analog torque command (TC).

T

30

TLO

Analog torque limit offset

Used to set the offset voltage of the analog torque limit (TLA).

0

mV

999

to

999

S

31

MO1

Analog monitor 1 offset
Used to set the offset voltage of the analog monitor (MO1).

0

mV

999

to 999

P S T

32

MO2

Analog monitor 2 offset
Used to set the offset voltage of the analog monitor (MO2).

0

mV

999

to 999

P S T

33

MBR

Electromagnetic brake sequence output

Used to set the delay time (Tb) between electronic brake interlock
(MBR) and the base drive circuit is shut-off.

100

ms

0

to

1000

P S T

34

GD2

Ratio of load inertia moment to servo motor inertia moment

Used to set the ratio of the load inertia moment to the servo motor
shaft inertia moment. When auto tuning mode 1 and interpolation
mode is selected, the result of auto tuning is automatically used.
(Refer to section 7.1.1)
In this case, it varies between 0 and 1000.

70

0.1

times

0

to

3000

P S

35

PG2

Position loop gain 2

Used to set the gain of the position loop.
Set this parameter to increase the position response to level load
disturbance. Higher setting increases the response level but is liable
to generate vibration and/or noise.
When auto tuning mode 1,2 and interpolation mode is selected, the
result of auto tuning is automatically used.

7kW or
less: 35

11kW or
more: 19

rad/s

1

to

1000

P

36

VG1

Speed loop gain 1

Normally this parameter setting need not be changed.
Higher setting increases the response level but is liable to generate
vibration and/or noise.
When auto tuning mode 1 2, manual mode and interpolation mode
is selected, the result of auto tuning is automatically used.

7kW or

less: 177
11kW or
more: 96

rad/s

20

to

8000

P S

37

VG2

Speed loop gain 2

Set this parameter when vibration occurs on machines of low rigidity
or large backlash. Higher setting increases the response level but is
liable to generate vibration and/or noise.
When auto tuning mode 1 2 and interpolation mode is selected, the
result of auto tuning is automatically used.

7kW or

less: 817
11kW or
more: 45

rad/s

20

to

20000

P S

Ex

pan

si

on

par

ame

te

rs

1

38

VIC

Speed integral compensation

Used to set the integral time constant of the speed loop.
Lower setting increases the response level but is liable to generate
vibration and/or noise.
When auto tuning mode 1 2 and interpolation mode is selected, the
result of auto tuning is automatically used.

7kW or
less: 48

11kW or
more: 91

ms

1

to

1000

P S