Mitsubishi Electronics MR-J2S- CL Parameters, 24FFC 25VCO 26TL0 27*ENR Expansion parameters

5. PARAMETERS

Class No. Symbol

24FFC

25VCO

26TL0

27*ENR

Expansion parameters 1

28TL1

29TL2

30*BKC

31MO1

32MO2

Name and Function

Initial

Unit

Setting

value

range

Feed forward gain

0

%

0 to 100

Set the feed forward gain. When the setting is 100%, the droop pulses during

operation at constant speed are nearly zero. However, sudden

acceleration/deceleration will increase the overshoot. As a guideline, when the

feed forward gain setting is 100%, set 1s or more as the

acceleration/deceleration time constant up to the rated speed.

Override offset

0

mV

999 to

Used to set the offset voltage to analog override.

999

Torque limit offset

0

mV

999 to

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

999

Encoder output pulses

4000

pulse/

1

Used to set the encoder pulses (A-phase, B-phase) output by the servo

rev

to

65535

amplifier.

Set the value 4 times greater than the A-phase or B-phase pulses.

You can use parameter No. 58 to choose the output pulse designation or

output division ratio setting.

The number of A/B-phase pulses actually output is 1/4 times greater than the

preset number of pulses.

The maximum output frequency is 1.3Mpps (after multiplication by 4). Use

this parameter within this range.

For output pulse designation

Set " 0

" (initial value) in parameter No. 58.

Set the number of pulses per servo motor revolution.

Output pulse

set value [pulses/rev]

At the setting of 5600, for example, the actually output A/B-phase pulses are

as indicated below:

A B-phase output pulses

5600

1400[pulse]

4

For output division ratio setting

Set " 1

" in parameter No. 58.

The number of pulses per servo motor revolution is divided by the set value.

Output pulse

Resolution per servo motor revolution

[pulses/rev]

Set value

At the setting of 8, for example, the actually output A/B-phase pulses are as

indicated below:

A B-phase output pulses

131072

1

4096[pulse]

8

4

Internal torque limit 1

100

%

0 to 100

Used to limit servo motor-torque on the assumption that the maximum torque

is 100%. When 0 is set, torque is not produced.

Internal torque limit 2

100

%

0 to 100

Used to limit servo motor-torque on the assumption that the maximum torque

is 100%. When 0 is set, torque is not produced.

Made valid by switching on the internal torque limit selection (TL2).

Backlash compensation

0

pulse

0 to 1000

Used to set the backlash compensation made when the command direction is

reversed.

This function compensates for the number of backlash pulses in the opposite

direction to the home position return direction. In the absolute position

detection system, this function compensates for the backlash pulse count in

the direction opposite to the operating direction at power-on.

Analog monitor 1 (MO1) offset

0

mV

999 to

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

999

Analog monitor 2 (MO2) offset

0

mV

999 to

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

999

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