Detailed Description Of The Signals - Mitsubishi Electric GENERAL PURPOSE AC SERVO MR-E- A/AG Instruction Manual

15. MR-E- AG SERVO AMPLIFIER COMPATIBLE WITH ANALOG INPUT

15.2.5 Detailed description of the signals

(1) Speed control mode
(a) Speed setting
1) 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 the analog speed command (VC). A relationship between the analog speed command
(VC) applied voltage and the servo motor speed is shown below:
The maximum speed is achieved at 10V. The speed at 10V can be changed using parameter
No. 25.
Speed [r/min]
CW direction
The following table indicates the rotation direction according to forward rotation start (ST1)
and reverse rotation start (ST2) combination:
(Note) External input signals
ST2
0
0
1
1
Note.0: off
1: on
The forward rotation start signal (ST1) and reverse rotation start signal (ST2) can be
assigned to any pins of the connector CN1 using parameters No.43 to 48.
Generally, make connection as shown below:
Rated speed [r/min]
CCW direction
10
0 10
VC applied voltage [V]
Rated speed
ST1
Polarity
Stop
0
(Servo lock)
1 CCW
0 CW
Stop
1
(Servo lock)
2k
Japan resistor
RRS10 or equivalent
Forward rotation (CCW)
Rotation direction
Analog speed command (VC)
0V
Stop
(Servo lock)
Stop
(No servo lock)
Stop
(Servo lock)
Servo amplifier
ST1
ST2
SG
P15R
2k
VC
LG
SD
15 - 18
Reverse rotation (CW)
Internal speed
commands
Polarity
Stop Stop
(Servo lock) (Servo lock)
CW CCW
CCW CW
Stop Stop
(Servo lock) (Servo lock)