Mitsubishi Electric Melservo MR-J3-A Instruction Manual page 88

3. SIGNALS AND WIRING
(2) Input signals
Signal Symbol
Analog torque TLA
limit
Analog torque TC
command
Analog speed VC
command
Analog speed limit VLA
Forward rotation PP
pulse train NP
Reverse rotation PG
pulse train NG
(3) Output signals
Signal Symbol
Encoder Z-phase OP
pulse
(Open collector)
Encoder A-phase LA
pulse LAR
(Differential line
driver)
Encoder B-phase LB
pulse LBR
(Differential line
driver)
Encoder Z-phase LZ
pulse LZR
(Differential line
driver)
Analog monitor 1 MO1
Analog monitor 2 MO2
Connec-
tor pin
No.
CN1-27 To use this signal in the speed control mode, set any of parameters
No. PD13 to PD16, PD18 to make TL available.
When the analog torque limit (TLA) is valid, torque is limited in the
full servo motor output torque range. Apply 0 to 10VDC across TLA-
LG. Connect the positive terminal of the power supply to TLA.
Maximum torque is generated at 10V. (Refer to section 3.6.1 (5).)
Resolution:10bit
Used to control torque in the full servo motor output torque range.
Apply 0 to 8VDC across TC-LG. Maximum torque is generated at
8V. (Refer to section 3.6.3 (1).)
The torque at 8V input can be changed using parameter No. PC13.
CN1-2 Apply 0 to 10VDC across VC-LG. Speed set in parameter No. PC12
is provided at 10V. (Refer to section 3.6.2 (1).)
Resolution:14bit or equivalent
Apply 0 to 10VDC across VLA-LG. Speed set in parameter No.
PC12 is provided at 10V (Refer to section 3.6.3 (3).).
CN1-10 Used to enter a command pulse train.
CN1-35 In the open collector system (max. input frequency 200kpps):
CN1-11 Forward rotation pulse train across PP-DOCOM
CN1-36 Reverse rotation pulse train across NP-DOCOM
In the differential receiver system (max. input frequency 1Mpps):
Forward rotation pulse train across PG-PP
Reverse rotation pulse train across NG-NP
The command pulse train form can be changed using
parameter No. PA13.
Connect
or pin
No.
CN1-33 Outputs the zero-point signal of the encoder. One pulse is output per
servo motor revolution. OP turns on when the zero-point position is
reached. (Negative logic)
The minimum pulse width is about 400 s. For home position return
using this pulse, set the creep speed to 100r/min. or less.
CN1-4 Outputs pulses per servo motor revolution set in parameter No. PA15
CN1-5 in the differential line driver system. In CCW rotation of the servo
motor, the encoder B-phase pulse lags the encoder A-phase pulse
by a phase angle of /2.
The relationships between rotation direction and phase difference of
CN1-6
the A- and B-phase pulses can be changed using parameter No.
CN1-7
PC19.
CN1-8 The same signal as OP is output in the differential line driver system.
CN1-9
CN6-3 Used to output the data set in parameter No. PC14 to across MO1-
LG in terms of voltage. Resolution 10 bits
CN6-2 Used to output the data set in parameter No. PC15 to across MO2-
LG in terms of voltage. Resolution 10 bits
Functions/Applications
Functions/Applications
3 - 35
Control
I/O
mode
division
P S T
Analog
input
Analog
input
Analog
input
Analog
input
DI-2
Control
I/O
mode
division
P S T
DO-2
DO-2
DO-2
Analog
output
Analog
output