Mitsubishi Electric MELSERVO-J4 MR-J4 A Series - 3.5 Signal (device) explanations

3. SIGNALS AND WIRING
3 - 21
3.5 Signal (device) explanations
For the I/O interfaces (symbols in I/O division column in the table), refer to section 3.9.2. In the control mode
field of the table
P: position control mode, S: speed control mode, T: torque control mode
ż: devices used with initial setting status, : devices used by setting [Pr. PA04] and [Pr. PD03] to [Pr. PD28]
The pin numbers in the connector pin No. column are those in the initial status.
(1) I/O device
(a) Input device
Control
mode
Device Symbol
Connect
or pin
No.
Function and application
I/O
divisi
on
PST
Turn off EM2 (open between commons) to decelerate the servo motor to a
stop with commands.
Turn EM2 on (short between commons) in the forced stop state to reset
that state.
The following shows the setting of [Pr. PA04].
Deceleration method
[Pr.
PA04]
setting
EM2/EM1
EM2 or EM1 is off Alarm occurred
0 _ _ _ EM1
MBR (Electromagnetic
brake interlock) turns
off without the forced
stop deceleration.
MBR (Electromagnetic
brake interlock) turns
off without the forced
stop deceleration.
2 0 _ _ EM2
MBR (Electromagnetic
brake interlock) turns
off after the forced
stop deceleration.
MBR (Electromagnetic
brake interlock) turns
off after the forced
stop deceleration.
Forced stop 2 EM2 CN1-42
EM2 and EM1 are mutually exclusive.
EM2 has the same function as EM1 in the torque control mode.
DI-1
Forced stop 1 EM1 (CN1-42) When using EM1, set [Pr. PA04] to "0 _ _ _" to enable EM1.
Turn EM1 off (open between commons) to bring the motor to an forced
stop state. The base circuit is shut off, the dynamic brake is operated and
decelerate the servo motor to a stop.
Turn EM1 on (short between commons) in the forced stop state to reset
that state.
DI-1
Servo-on SON CN1-15 Turn SON on to power on the base circuit and make the servo amplifier
ready to operate. (servo-on command)
Turn it off to shut off the base circuit and coast the servo motor.
Set "_ _ _ 4" in [Pr. PD01] to switch this signal on (keep terminals
connected) automatically in the servo amplifier.
DI-1
Reset RES CN1-19 Turn on RES for more than 50 ms to reset the alarm.
Some alarms cannot be deactivated by RES (Reset). Refer to section 8.1.
Turning RES on in an alarm-free status shuts off the base circuit. The base
circuit is not shut off when " _ _ 1 _ " is set in [Pr. PD30].
This device is not designed to make a stop. Do not turn on it during
operation.
DI-1
△
division