Mitsubishi Electric MELSERVO-J4 series, Instruction Manual

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108
3 SIGNALS AND WIRING
3.5 Signal (device) explanations
Output signal
Power supply
Warning WNG When warning has occurred, WNG turns on. When a warning is not occurring, turning on the power will turn off
WNG after 2.5 s to 3.5 s.
Battery warning BWNG BWNG turns on when [AL. 92 Battery cable disconnection warning] or [AL. 9F Battery warning] has occurred.
When the battery warning is not occurring, turning on the power will turn off BWNG after 2.5 s to 3.5 s.
Variable gain selection CDPS CDPS will turn on during variable gain.
Absolute position
undetermined ABSV ABSV turns on when the absolute position is undetermined.
The device cannot be used in the velocity mode and torque mode.
During tough drive MTTR When a tough drive is enabled in [Pr. PA20], activating the instantaneous power failure tough drive will turn on
MTTR.
During fully closed loop
control CLDS CLDS turns on during fully closed loop control.
This is used with servo amplifiers with software version A1 or later.
Signal name Symbol Connector
pin No. Function and application
Encoder A-phase pulse
(differential line driver) LA
LAR CN3-6
CN3-16 These devices output pulses of encoder output set in [Pr. PA15] and [Pr. PA16] in the differential line
driver type.
In CCW rotation of the servo motor, the encoder B-phase pulse lags the encoder A-phase pulse by a
phase angle of

/2.
The relation between rotation direction and phase difference of the A-phase and B-phase pulses can
be changed with [Pr. PC03].
Output pulse specification, dividing ratio setting, and electronic gear setting can be selected.
Encoder B-phase pulse
(differential line driver) LB
LBR CN3-7
CN3-17
Encoder Z-phase pulse
(differential line driver) LZ
LZR CN3-8
CN3-18 The encoder zero-point signal is output in the differential line driver type. One pulse is output per servo
motor revolution. This turns on when the zero-point position is reached. (negative logic)
The minimum pulse width is about 400

s. For home position return using this pulse, set the creep
speed to 100 r/min or less.
Analog monitor 1 MO1 CN3-4 This is used to output the data set in [Pr. PC09] to between MO1 and LG in terms of voltage.
Resolution: 10 bits or equivalent
Analog monitor 2 MO2 CN3-14 This signal outputs the data set in [Pr. PC10] to between MO2 and LG in terms of voltage.
Resolution: 10 bits or equivalent
Signal name Symbol Connector
pin No. Function and application
Digital I/F power supply
input DICOM CN3-5 Input 24 V DC (24 V DC

10% 300 mA) for I/O interface. The power supply capacity changes
depending on the number of I/O interface points to be used.
For sink interface, c of 24 V DC external power supply.
For source interface, connect - of 24 V DC external power supply.
Digital I/F common DOCOM CN3-3 Common terminal of input signal such as EM2 of the servo amplifier. This is separated from LG.
For sink interface, connect - of 24 V DC external power supply.
For source interface, c of 24 V DC external power supply.
Monitor common LG CN3-11 Common terminal of MO1 and MO2.
Shield SD Plate Connect the external conductor of the shielded wire.
Device Symbol Function and application