Mitsubishi Electric MR-J4W2, Instruction Manual

Page: 53 / 542

3. SIGNALS AND WIRING
3 - 16
Device Symbol Function and application
AND ready CRD Enabling servo-on to make the servo amplifier ready to operate will turn on RD.
OR ready XRD
Common ready for A-
axis RD-A
Common ready for B-
axis RD-B
Common ready for C-
axis RD-C
AND speed reached CSA SA will turn off during servo-off. When the servo motor speed reaches the following range, SA will
turn on.
Set speed ± ((Set speed × 0.05) + 20) r/min
When the preset speed is 20 r/min or less, SA always turns on.
The device cannot be used in the position control mode and torque control mode.
OR speed reached XSA
Speed reached for A-
axis SA-A
Speed reached for B-
axis SA-B
Speed reached for C-
axis SA-C
AND limiting speed CVLC When the speed reaches the speed limit value in the torque control mode, VLC will turn on. When
the servo is off, TLC will be turned off.
The device cannot be used in the position control mode and speed control mode.
OR limiting speed XVLC
Limiting speed for A-
axis VLC-A
Limiting speed for B-
axis VLC-B
Limiting speed for C-
axis VLC-C
AND zero speed
detection CZSP ZSP turns on when the servo motor speed is zero speed (50r/min) or less. Zero speed can be
changed with [Pr. PC07].
OFF
ON
Servo motor
speed
20 r/min
(Hysteresis width)
[Pr. PC07]
20 r/min
(Hysteresis width)
OFF level
-70 r/min
ON level
-50 r/min
ON level
50 r/min
OFF level
70 r/min
0 r/min
[Pr. PC07]
ZSP
(Zero speed
detection)
1)
3)
2)
4)
Forward
rotation
direction
Reverse
rotation
direction
ZSP will turn on when the servo motor is decelerated to 50 r/min (at 1)), and will turn off when the
servo motor is accelerated to 70 r/min again (at 2)).
ZSP will turn on when the servo motor is decelerated again to 50 r/min (at 3)), and will turn off
when the servo motor speed has reached -70 r/min (at 4)).
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 20 r/min for this servo amplifier.
When you use a linear servo motor, [r/min] explained above will be [mm/s].
OR zero speed
detection XZSP
Zero speed detection
for A-axis ZSP-A
Zero speed detection
for B-axis ZSP-B
Zero speed detection
for C-axis ZSP-C
AND limiting torque CTLC When the torque reaches the torque limit value during torque generation, TLC will turn on. When
the servo is off, TLC will be turned off.
This device cannot be used in the torque control mode.
OR limiting torque XTLC
Limiting torque for A-
axis TLC-A
Limiting torque for B-
axis TLC-B
Limiting torque for C-
axis TLC-C