Mitsubishi Electronics MR-J2S- A

3 - 35

3. SIGNALS AND WIRING

(3) Speed setting in speed control mode

(a) Speed command and speed

The servo motor is run at the speed set in parameter No. 8 (internal speed command 1) or at the

speed set in the applied voltage of the analog speed command (VC). A relationship between analog

speed command (VC) applied voltage and servo motor speed and the rotation directions determined

by the forward rotation start (ST1) and re verse rotation start (ST2) are as in section 3.4.2 ( 1) (a).

Generally, make connection as shown below.

Japan resistor

RRS10 or equivalent

SP1

P15R

Servo amplifier

k2k

(b) Speed selection 1 (SP1) and speed command value

Use speed selection 1 (SP1) to select between the speed set by the internal speed command 1 and

the speed set by the analog speed command (VC) as indicated in the following table.

(Note) External input signals

SP1 Speed command value

0 Analog speed command (VC)

1 Internal speed command 1 (parameter No. 8)

Note. 0: off

1: on

By making speed selection 2 (SP2) speed select ion 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

000Analog speed command (VC)

0 0 1 Inte rnal speed command 1 (parameter No. 8)

0 1 0 Inte rnal speed command 2 (parameter No. 9)

0 1 1 Inte rnal speed command 3 (parameter No. 10)

1 0 0 Inte rnal speed command 4 (parameter No. 72)

1 0 1 Inte rnal speed command 5 (parameter No. 73)

1 1 0 Inte rnal speed command 6 (parameter No. 74)

1 1 1 Inte rnal speed command 7 (parameter No. 75)

Note. 0: off

1: on

The speed may also be changed during rotation. In this case, it is increased or decreased according

to the value set in parameter No. 11 or 12.

When the internal speed command 1 is used to command the speed, the speed does not vary with

the ambient temperature.

As in section 3.4.2 (2).