3. SIGNALS AND WIRING
3 - 45
3.6.2 Speed control mode
(1) Speed setting
(a) Speed command and speed
The servo motor is run at the speeds set in the parameters or at the speed set in the applied voltage
of VC (Analog speed command). A relation between VC (Analog speed command) applied voltage
and the servo motor speed is as follows.
Rated speed is achieved at ±10 V with initial setting. The speed at ±10 V can be changed with [Pr.
PC12].
Speed
[r/min]
CW
direction
Rated speed [r/min]
Rated speed [r/min]
0
CCW direction
+10
-10
VC applied voltage [V]
Forward rotation
(CCW)
Reverse rotation
(CW)
The following table indicates the rotation direction according to ST1 (Forward rotation start) and ST2
(Reverse rotation start) combination.
(Note 1) Input device
(Note 2) Rotation direction
ST2 ST1
VC (Analog speed command)
Internal speed command
Polarity: +
0 V
Polarity: -
0 0
Stop
(servo-lock)
Stop
(servo-lock)
Stop
(servo-lock)
Stop
(servo-lock)
0 1
CCW
Stop
(no servo-lock)
CW CCW
1 0
CW
CCW
CW
1 1
Stop
(servo-lock)
Stop
(servo-lock)
Stop
(servo-lock)
Stop
(servo-lock)
Note 1. 0: Off
1: On
2. If the torque limit is canceled during servo-lock, the servo motor may suddenly rotate according to position deviation in respect
to the command position.
Normally, connect as follows.
Japan resistor
RRS10 or equivalent
ST2
DICOM
P15R
VC
LG
SD
Servo amplifier
ST1
(Note)
2 k
Ω
2 k
Ω
24 V DC
Note. This diagram shows sink I/O interface. For source I/O interface, refer to section 3.9.3.
Summary of Contents for MR-J4-100A(-RJ)
Page 19: ...10 MEMO ...
Page 75: ...1 FUNCTIONS AND CONFIGURATION 1 56 MEMO ...
Page 83: ...2 INSTALLATION 2 8 MEMO ...
Page 159: ...3 SIGNALS AND WIRING 3 76 MEMO ...
Page 203: ...4 STARTUP 4 44 MEMO ...
Page 351: ...7 SPECIAL ADJUSTMENT FUNCTIONS 7 40 MEMO ...
Page 365: ...8 TROUBLESHOOTING 8 14 MEMO ...
Page 387: ...9 DIMENSIONS 9 22 MEMO ...
Page 403: ...10 CHARACTERISTICS 10 16 MEMO ...
Page 553: ...12 ABSOLUTE POSITION DETECTION SYSTEM 12 30 MEMO ...
Page 567: ...13 USING STO FUNCTION 13 14 MEMO ...
Page 607: ...14 COMMUNICATION FUNCTION MITSUBISHI ELECTRIC GENERAL PURPOSE AC SERVO PROTOCOL 14 40 MEMO ...
Page 639: ...15 USING A LINEAR SERVO MOTOR 15 32 MEMO ...
Page 767: ...18 MR J4 03A6 RJ SERVO AMPLIFIER 18 84 MEMO ...
Page 856: ...APPENDIX App 41 ...
Page 905: ...MEMO ...