70
3 SIGNALS AND WIRING
3.5 Signal (device) explanation
■
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.
■
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)
■
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)
Содержание MR-J5D
Страница 1: ...MR J5D User s Manual Hardware MR J5D_ _G_ MR J5D_ _G_ _N1 Mitsubishi Electric AC Servo System ...
Страница 2: ......
Страница 189: ...10 USING A FULLY CLOSED LOOP SYSTEM 10 7 Absolute position detection system 187 10 MEMO ...
Страница 193: ......