Input Signals; Output Signals - Mitsubishi Electric MELSERVO-J3 Series Instruction Manual

4. SIGNALS AND WIRING
Device
Zero speed
Variable gain selection
Note. These are pin Nos. assigned at default.

4.5.2 Input signals

Device
Manual pulse generator

4.5.3 Output signals

Refer to section 4.8.2 for the output interfaces (symbols in the I/O Division field in the table) of the
corresponding connector pins.
Signal
Encoder A-phase pulse
(differential line driver)
Encoder B-phase pulse
(differential line driver)
Encoder Z-phase pulse
(differential line driver)
Connector
Symbol
pin No.
ZSP ZSP turns on when the servo motor speed is zero speed (50r/min) or less. Zero
speed can be changed using parameter No.PC17.
Example
Zero speed is 50r/min
Forward
rotation
direction
Servo motor
speed
Reverse
rotation
direction
zero speed
detection
(ZSP)
ZSP turns on 1) when the servo motor is decelerated to 50r/min, and ZSP turns
off 2) when the servo motor is accelerated to 70r/min again.
ZSP turns on 3) when the servo motor is decelerated again to 50r/min, and turns
off 4) when the servo motor speed has reached -70r/min.
The range from the point when the servo motor speed has reached ON level, and
ZSP turns on, to the point when it is accelerated again and has reached OFF
level is called hysteresis width.
Hysteresis width is 20r/min for this servo amplifier.
CDPS CDPS is on during gain switching.
Connector
Symbol
pin No.
PP CN6-6 Used to connect the manual pulse generator (MR-HDP01). (Refer to section
14.18.)
NP CN6-19
Connector
Symbol
pin No.
LA CN6-11 Outputs pulses per servo motor revolution set in parameter No.PA15
LAR CN6-24
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.
LB CN6-12
The relationships between rotation direction and phase difference of
LBR CN6-25
the A- and B-phase pulses can be changed using parameter No.
PC19.
LZ CN6-13 Outputs the zero-point signal of the encoder in the differential line
LZR CN6-26
driver system. One pulse is output per servo motor revolution. This
signal 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.
Functions/Applications
1)
OFF level
3)
70r/min
2)
ON level
50r/min
0r/min
ON level
50r/min
OFF level
70r/min
ON
OFF
Functions/Applications
Functions/Applications
4 - 29
20r/min
(Hysteresis width)
Parameter
No.PC17
Parameter
No.PC17
20r/min
(Hysteresis width)
4)
I/O
division
DO-2
DO-2