Mitsubishi Electric MELSERVO-JN Series Instruction Manual page 66

3. SIGNALS AND WIRING
Device Symbol
Internal TL1
torque limit
selection
Forward rotation ST1
start
Reverse rotation ST2
start
Forward rotation RS1
selection
Reverse rotation RS2
selection
Connec-
tor pin
No.
The internal torque limit 2 (parameter No. PC14) becomes valid by turning
TL1 on.
The forward torque limit (parameter No. PA11) and the reverse torque
limit (parameter No. PA12) are always valid.
The smallest torque limit among the valid forward and reverse torque
limits is the actual torque limit value.
(Note)
Input device
TL1
0
1
Note. 0: off
1: on
Used to start the servo motor in any of the following directions.
(Note) Input device
ST2
0
0
1
1
Note. 0: off
1: on
If both ST1 and ST2 are switched on or off during operation, the servo
motor will be decelerated to a stop according to parameter No. PC02
setting and servo-locked.
When " 1 " is set in parameter No. PC23, the servo motor is not
servo-locked after deceleration to a stop.
Used to select any of the following servo motor torque generation
directions.
(Note) Input device
RS2
0
0
1
1
Note. 0: off
1: on
Torque is not generated if both RS1 and RS2 are switched ON or OFF
during the operation.
Functions/Applications
Comparison between limit
values
Parameter
Parameter No. PA11
>
No. PC14 Parameter
No. PA12
Parameter
Parameter No. PA11
<
No. PC14 Parameter
No. PA12
Servo motor starting direction
ST1
Stop (servo lock)
0
1
0
1 Stop (servo lock)
Torque generation direction
RS1
0 Torque is not generated.
Forward rotation in driving mode /
1 reverse rotation in regenerative
mode
Reverse rotation in driving mode /
0 forward rotation in regenerative
mode
1 Torque is not generated.
3 - 17
Valid torque limit value
Forward Reverse
rotation rotation
Parameter Parameter
No. PA11 No. PA12
Parameter Parameter
No. PA11 No. PA12
Parameter Parameter
No. PC14 No. PC14
CCW
CW
Control
I/O
mode
division
P S T
DI-1
DI-1
DI-1