beautypg.com

Signals and wiring – MITSUBISHI ELECTRIC MR-J2S- A User Manual

Page 77

background image

3 - 30

3. SIGNALS AND WIRING

(b) Speed selection 1 (SP1), speed selection 2 (SP2) and speed command value

Choose any of the speed settings made by the internal speed commands 1 to 3 using speed selection
1 (SP1) and speed selection 2 (SP2) or the speed setting made by the analog speed command (VC).

(Note) External input signals

SP2

SP1

Speed command value

0

0

Analog speed command (VC)

0

1

Internal speed command 1 (parameter No. 8)

1

0

Internal speed command 2 (parameter No. 9)

1

1

Internal speed command 3 (parameter No. 10)

Note. 0: off

1: on

By making speed selection 3 (SP3) usable by setting of parameter No. 43 to 48, you can choose the
speed command values of analog speed command (VC) and internal speed commands 1 to 7.

(Note) External input signals

SP3

SP2

SP1

Speed command value

0

0

0

Analog speed command (VC)

0

0

1

Internal speed command 1 (parameter No. 8)

0

1

0

Internal speed command 2 (parameter No. 9)

0

1

1

Internal speed command 3 (parameter No. 10)

1

0

0

Internal speed command 4 (parameter No. 72)

1

0

1

Internal speed command 5 (parameter No. 73)

1

1

0

Internal speed command 6 (parameter No. 74)

1

1

1

Internal speed command 7 (parameter No. 75)

Note. 0: off

1: on

The speed may be changed during rotation. In this case, the values set in parameters No. 11 and
12 are used for acceleration/deceleration.
When the speed has been specified under any internal speed command, it does not vary due to the
ambient temperature.

(2) Speed reached (SA)

SA turns on when the servo motor speed has nearly reached the speed set to the internal speed
command or analog speed command.

ON

OFF

ON

OFF

Set speed selection

Internal speed

command 1

Internal speed

command 2

Start (ST1,ST2)

Servo motor speed

Speed reached (SA)

(3) Torque limit

As in section 3.4.1 (5).