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3 SIGNALS AND WIRING
3.5 Signal (device) explanation
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ZSP (Zero speed detection)
If the servo motor speed is zero speed or less, ZSP will turn on. Zero speed can be changed with [Pr. PC17].
ZSP will turn on when the servo motor speed is reduced to 50 r/min (at 1)), and will turn off when the servo motor is increased
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
reaches -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 the
speed has increased again and reached the off-level is called a hysteresis width.
The hysteresis width is 20 r/min for this servo amplifier.
If using a linear servo motor, replace [r/min] with [mm/s].
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TLC (Limiting torque)
When torque is generated, TLC will turn on if the torque reaches the torque limit value set with any of [Pr. PA11], [Pr. PA12], or
TLA (Analog torque limit).
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ABSB0 (ABS transmission data bit 0)
This is used to output ABS transmission data bit 0. When [Pr. PA03.0] is set to "1" and the absolute position detection system
by DIO is selected, ABSB0 is assigned to the CN3-22 pin only during the ABS transfer mode. Refer to the following for details.
Page 192 ABSOLUTE POSITION DETECTION SYSTEM
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ABSB1 (ABS transmission data bit 1)
This is used to output ABS transmission data bit 0. When [Pr. PA03.0] is set to "1" and the absolute position detection system
by DIO is selected, ABSB1 is assigned to the CN3-23 pin only during the ABS transfer mode. Refer to the following for details.
Page 192 ABSOLUTE POSITION DETECTION SYSTEM
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ABST (ABS transmission data ready)
This is used to output ABS transmission data ready. When [Pr. PA03.0] is set to "1" and the absolute position detection system
by DIO is selected, ABST is assigned to the CN3-25 pin only during the ABS transfer mode. Refer to the following for details.
Page 192 ABSOLUTE POSITION DETECTION SYSTEM
OFF
ON
20 r/min
[Pr. PC17]
20 r/min
-70 r/min
-50 r/min
50 r/min
70 r/min
0 r/min
[Pr. PC17]
ZSP
1)
2)
4)
3)
OFF level
Forward
rotation
direction
(Hysteresis width)
ON level
Servo motor
speed
ON level
Reverse
rotation
direction
(Hysteresis width)
OFF level
(Zero speed detection)
