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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 the zero speed or less, ZSP will turn on. The zero speed can be changed with [Pr. PC07]. The
following shows an example when the initial value (50) is set in [Pr. PC07].
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 drive unit.
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TLC (Limiting torque)
If the torque reaches the torque limit value when torque is generated, TLC will turn on. TLC will turn off in the servo-off state.
In the torque mode, TLC is off.
For details, refer to "Torque limit" in the following manual.
MR-J5 User's Manual (Function)
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DOA (General-purpose output A)/DOB (General-purpose output B)/DOC (General-purpose
output C)
The pins to which the device is assigned can be switched on/off with the object "Digital outputs". For details, refer to "[Digital
outputs (Obj. 60FEh)]" in the User's Manual (Object Dictionary).
OFF
ON
20 r/min
[Pr. PC07]
20 r/min
-70 r/min
-50 r/min
50 r/min
70 r/min
0 r/min
[Pr. PC07]
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)
