Signal (Device) Explanations - Mitsubishi Electric MELSERVO-J4 Series Instruction Manual

3.5

Signal (device) explanations

For the I/O interfaces (symbols in I/O division column in the table), refer to the following.
Page 116 Detailed explanation of interfaces
The pin numbers in the connector pin No. column are those in the initial status.
Input device
Input device pin
The following shows the input device pins and parameters for setting devices.
Connector pin No.
CN3-2
CN3-12
CN3-19
CN3-20
Input device explanations
Device Symbol
Forced stop 2 EM2
Forced stop 1 EM1
Touch probe 1 TPR1
Touch probe 2 TPR2
Parameter
[Pr. PD03]
[Pr. PD04]
[Pr. PD05]
[Pr. PA04]
Connect Function and application
or pin
No.
CN3-20 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.
Set [Pr. PA04] to "2 1 _ _" to disable EM2.
The following shows the setting of [Pr. PA04].
[Pr. PA04] EM2/EM1
setting
0 0 _ _ EM1
2 0 _ _ EM2
Not using
0 1 _ _
EM2 or EM1
2 1 _ _ Not using
EM2 or EM1
EM2 and EM1 are mutually exclusive.
EM2 has the same function as EM1 in the torque mode.
(CN3-20) When using EM1, set [Pr. PA04] to "0 0 _ _" to enable EM1.
When EM1 is turned off (open between commons), the base circuit shuts off, and the dynamic
brake operates to decelerate the servo motor to a stop.
The forced stop will be reset when EM1 is turned on (short between commons).
Set [Pr. PA04] to "0 1 _ _" to disable EM1.
CN3-10 The device is available only with MR-J4-_GF_-RJ.
The touch probe function is available to latch the current position by sensor input. Turn it on to
latch the current position. Refer to the following for the touch probe function.
CN3-1
Page 544 Touch probe
Initial device
LSP
LSN
DOG
EM2
Deceleration method
EM2 or EM1 is off
MBR (Electromagnetic
brake interlock) turns off
without the forced stop
deceleration.
MBR (Electromagnetic
brake interlock) turns off
after the forced stop
deceleration.


3.5 Signal (device) explanations
I/O division
DI-1
I/O
division
DI-1
Alarm occurred
MBR (Electromagnetic
brake interlock) turns off
without the forced stop
deceleration.
MBR (Electromagnetic
brake interlock) turns off
after the forced stop
deceleration.
MBR (Electromagnetic
brake interlock) turns off
without the forced stop
deceleration.
MBR (Electromagnetic
brake interlock) turns off
after the forced stop
deceleration.
DI-1
DI-1
DI-1
3 SIGNALS AND WIRING
3
105