Mitsubishi Electric MELSERVO-J2 Series Instruction Manual page 47

3. SIGNALS AND WIRING
(2) Assignable devices
1) Input devices
Device Name
No assigned function
Forced stop
Override selection
External torque limit
selection
Internal torque limit
selection
Proportion control
Reset
Point table No. selection
1
Point table No. selection
2
Point table No. selection
3
Point table No. selection
4
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Symbol
No function is assigned.
EMG When EMG-SG are opened, the servo amplifier is placed in the forced stop
status, the servo switches off, and the dynamic brake is operated to bring the
servo motor to a sudden stop.
Short EMG-SG in the forced stop status to cancel the forced stop status.
OVR Short OVR-SG to make override (VC) valid.
TL Short TL-SG to make analog torque limit (TLA) valid.
(Refer to Section 3.4.4.)
TL2 Open TL2-SG to make the torque limit value set in parameter No.28 (internal
torque limit 1) valid, or short them to make the value set in parameter No.29
(internal torque limit 2) valid.
(Refer to Section 3.4.4.)
PC Connect PC-SG to switch the speed amplifier from the proportional integral
type to the proportional type.
If the servo motor at a stop is rotated even one pulse due to any external
factor, it generates torque to compensate for a position shift. When the servo
motor shaft is to be locked mechanically after positioning completion (stop),
switching on the proportion control (PC) upon positioning completion will
suppress the unnecessary torque generated to compensate for a position shift.
When the shaft is to be locked for a long time, switch on the proportion
control signal and torque control (TL) at the same time to make the torque
less than the rated by the analog torque limit (TLA).
RES Disconnect RES-SG for more than 50ms to reset the alarm.
Some alarms cannot be deactivated by the reset (RES). (Refer to Section
11.2.1.)
Shorting RES-SG in an alarm-free status shuts off the base circuit. The base
circuit is not shut off when "
selection 4).
Since this device is not designed for stopping, do not switch it on during
operation.
DI0
Valid in the automatic mode.
The following table lists the point table numbers that may be chosen by the
combinations of DI0, DI1, DI2 and DI3:
DI1
(Note) Input signals
DI3 DI2
0
DI2
0
DI3 0
0
0
0
0
0
1
1
1
1
1
1
1
1
Note:0: DI3/DI2/DI1/DI0-SG open
1: DI3/DI2/DI1/DI0-SG shorted
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Description
1 " is set in parameter No. 22 (function
DI1 DI0
0 0 0 0 (Manual home position return)
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
3 - 10
Point table No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
I/O Division
DI-1
DI-1
DI-1
DI-1
DI-1
DI-1
DI-1