Mitsubishi Electric MELSERVO MR-J4-B-LL Series Instruction Manual page 40

2. SIGNALS AND WIRING
Device Symbol
Zero speed detection ZSP
Limiting torque TLC
Warning WNG
Battery warning BWNG
Variable gain CDPS
selection
Absolute position ABSV
undetermined
During tough drive MTTR
ZSP turns on when the servo motor speed is zero speed or less. Zero speed can be changed with
[Pr. PC07].
OFF level
Forward
70 r/min
rotation
ON level
direction
50 r/min
Servo motor
0 r/min
speed
ON level
Reverse
-50 r/min
rotation
OFF level
direction
-70 r/min
ON
ZSP
(Zero speed
OFF
detection)
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.
When the torque reaches the torque limit value during torque generation, TLC will turn on. When
the servo is off, TLC will turn off.
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.
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.
CDPS will turn on during variable gain.
ABSV turns on when the absolute position is undetermined.
This device cannot be used in the speed control mode.
When a tough drive is enabled in [Pr. PA20], activating the instantaneous power failure tough drive
will turn on MTTR.
Function and application
1)
3)
2)
2 - 9
20 r/min
(Hysteresis width)
[Pr. PC07]
[Pr. PC07]
20 r/min
(Hysteresis width)
4)