Mitsubishi Electric MELSERVO MR-J4-B-LL Series, Instruction Manual

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2. SIGNALS AND WIRING
2 - 9
Device Symbol Function and application
Zero speed detection ZSP ZSP turns on when the servo motor speed is zero speed 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 the on-level, and ZSP turns on,
to the point when it is accelerated again and has reached the off-level is called hysteresis width.
Hysteresis width is 20 r/min for this servo amplifier.
Limiting torque TLC When the torque reaches the torque limit value during torque generation, TLC will turn on. When
the servo is off, TLC will turn off.
Warning WNG When a warning occurs, WNG will turn on. When a warning is not occurring, turning on the power
will turn off WNG after 2.5 s to 3.5 s.
Battery warning BWNG BWNG turns on when [AL. 92 Battery cable disconnection warning] or [AL. 9F Battery warning] has
occurred. When the battery warning is not occurring, turning on the power will turn off BWNG after
2.5 s to 3.5 s.
Variable gain
selection CDPS CDPS will turn on during variable gain.
Absolute position
undetermined ABSV ABSV turns on when the absolute position is undetermined.
This device cannot be used in the speed control mode.
During tough drive MTTR When a tough drive is enabled in [Pr. PA20], activating the instantaneous power failure tough drive
will turn on MTTR.