Mitsubishi Electric Melservo MR-J3-A Instruction Manual page 100

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 reverse rotation start (ST2) are as in (a), (1) in section 3.6.2.
Generally, make connection as shown below:
(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
0
0
1
1
Note. 0: off
1: on
By making speed selection 3 (SP3) usable by setting of parameter No.PD03 to PD08/PD10 to PD12,
you can choose the speed command values of analog speed command (VC) and internal speed
commands 1 to 7.
(Note) External input signals
SP3
0
0
0
0
1
1
1
1
Note. 0: off
1: on
The speed may be changed during rotation. In this case, the values set in parameters No. PC01 and
PC02 are used for acceleration/deceleration.
When the internal speed command 1 is used to command the speed, the speed does not vary with the
ambient temperature.
(c) Speed reached (SA)
As in section 3.6.2 (2).
2k
Japan resistor
RRS10 or equivalent
Note. For the sink I/O interface. For the source I/O interface, refer to section 3.8.3.
SP1
0 Analog speed command (VC)
1 Internal speed command 1 (parameter No. PC05)
0 Internal speed command 2 (parameter No. PC06)
1 Internal speed command 3 (parameter No. PC07)
SP2 SP1
0 0 Analog speed command (VC)
0 1 Internal speed command 1 (parameter No. PC05)
1 0 Internal speed command 2 (parameter No. PC06)
1 1 Internal speed command 3 (parameter No. PC07)
0 0 Internal speed command 4 (parameter No. PC08)
0 1 Internal speed command 5 (parameter No. PC09)
1 0 Internal speed command 6 (parameter No. PC10)
1 1 Internal speed command 7 (parameter No. PC11)
Servo amplifier
ST1
(Note)
ST2
DOCOM
P15R
2k
VC
LG
SD
Speed command value
Speed command value
3 - 47