Mitsubishi MELServo Drive – HMS Support Portal

Compatible Devices

Mitsubishi MELServo [g3-mitsubi...himelservo | Word]

Verified Device

MR-J2S-10A
MR-J2S-10CP1 (Version 1.1 added April 2008)
MR-J3-40A (Version 2.0 added August 2008) [g3-mitsubi...himelservo | Word]

Device Options

Network Address Selection:

STATION – select address 0–31
GROUP – select address 10–15 (Group A–F) (may not support Read)
ALL UNITS – address ignored (may not support Read) [g3-mitsubi...himelservo | Word]

Servo Type: Select the communication type based on the connected drive. Mixing different types on the same port is not recommended when using GROUP or ALL UNITS. [g3-mitsubi...himelservo | Word]

Communication Parameter Settings:

Parameter 15 = Station Number (must match)
Parameter 16 = Baud Rate (must match)
Parameter 53 = OP8 = 0000 (Required) [g3-mitsubi...himelservo | Word]

Accessible Data for MR-J2S-CL Servo Type

Prefix	Description	Information
PARC	Read/Write Parameter – Real	0–90
PARCH	Read/Write Parameter – Long	0–90
STSC	CL Status Display Data	0–11 (Hex)
ALN	Alarm History Number	0–5
ALT	Alarm History Time	0–5
ALSC	Status at Alarm	0–11 (Hex)
ACU	Reset Current Alarm	Write 1
EXTC	External I/O Signals	0–5
LAT	Current Position Latch
GPR	General Purpose R	1–4
GPD	General Purpose D	1–4
GSV	Group Setting
SVR	Software Version
ACL	Clear Alarm History	Write 1
SCL	Clear Status Display	Write 1
OMS	Operation Mode Select	0–4
TOM	Test Operation
EIS	Input Enable/Disable	1 = Enable
EOS	Output Enable/Disable	1 = Enable
WPEC	Write Parameter EEPROM
WGER	Write Register EEPROM
READ	Read TOM/OMS
GENR	Read Generic String
GENW	Write Generic String

Accessible Data for MR-J2S-A Servo Type

Prefix	Description	Information
PARA	Read/Write Parameter – Real	0–84
PARAH	Read/Write Parameter – Long	0–84
STSA	Status Display	0–E (Hex)
ALN	Alarm History Number	0–5
ALT	Alarm History Time	0–5
ALSA	Status at Alarm	0–E (Hex)
ACU	Reset Current Alarm	Write 1
EXTA	External I/O	0–1
GSV	Group Setting
SEP	Motor Position
CUP	Command Position
SVR	Software Version
ACL	Clear Alarm History	Write 1
SCL	Clear Status	Write 1
OMS	Operation Mode	0–4
TOM	Test Operation
EIS	Input Enable	1
EOS	Output Enable	1
WPEA	Write EEPROM
READ	Read Commands
GENR	Read Generic
GENW	Write Generic

Accessible Data for MR-J2S-CP Servo Type

Prefix	Description	Information
PARC	Parameter	0–90
PARCH	Parameter Long	0–90
STSP	Status Display	0–11 (Hex)
PPOS	Point Position	1–31
PSPD	Point Speed	1–31
PACC	Acceleration	1–31
PDEC	Deceleration	1–31
PDWL	Dwell	1–31
PAUX	Aux Function	1–31
EEPW	Write Point EEPROM
ALN	Alarm Number	0–5
ALT	Alarm Time	0–5
ALSP	Status at Alarm
ACU	Reset Alarm
EXTC	I/O Signals
GSV	Group
SVR	Version
ACL	Clear Alarm
SCL	Clear Status
OMS	Mode
TOM	Test
EIS / EOS	I/O Enable
GENR / GENW	Generic

Accessible Data for MR-J3 Servo Type

Prefix	Description	Information
PAR	Parameter (Real)	1–255
PARH	Parameter (Long)	1–255
PARU	Upper Limit
PARUH	Upper Limit Long
PARL	Lower Limit
PARLH	Lower Limit Long
PARAB	Parameter Name
PAREN	Write Enable
PARGP	Parameter Group	0–3
STSA	Status
STSU	Units String
STSN	Name String
ALN / ALT	Alarm Data
ALSU / ALSN	Alarm Strings
ACU	Reset Alarm
EXTC	External I/O
SEP / CUP	Position Data
SVR	Version
ACL / SCL	Clear Data
OMS	Mode
TOMM / TOMS / TOM	Test Ops
EIS / EOS	I/O Enable
GENR / GENW	Generic

General Notes

Driver converts integer values to Real for display
Do NOT perform continuous EEPROM writes (hardware damage risk)
ACU, ACL, SCL, EIS, EOS return -1 when read
String values use packed character format

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RS232 Cable Information

RLC UNIT	J2 - CN3	Signal	Cable
2 (RxD)	12	TxD	2
5 (TxD)	2	RxD	3
3/4 (0V)	1/11	LG	5

RS422/485 Cable Information

RLC UNIT	J2 - CN3	J3 - CN3	Signal
1 (TX-)	5	3	RDP
2 (TX+)	15	6	RDN
3 (RX+)	19	4	SDN
4 (RX-)	9	5	SDP
6 (0V)	1/11	1	LG

Termination required on last axis in multi-axis systems. Verify with Mitsubishi documentation. [g3-mitsubi...himelservo | Word]