Mitsubishi Electric MELSERVO-J2-Super Series User manual

J2-Super Series
SH (NA) 030034-F (0709) MEE Printed in Japan Specifications subject to change without notice.
This Instruction Manual uses recycled paper.
MODEL
MODEL
CODE
MR-J2S- CL Servo Amplifier Instruction Manual
General-Purpose AC Servo
MODEL
MR-J2S- CL
SERVO AMPLIFIER
INSTRUCTION MANUAL
Program Compatible
J2-Super Series
F
F
HEAD OFFICE : TOKYO BLDG MARUNOUCHI TOKYO 100-8310

A - 1
Safety Instructions
(Always read these instructions before using the equipment.)
Do not attempt to install, operate, maintain or inspect the servo amplifier and servo motor until you have read
through this Instruction Manual, Installation guide, Servo motor Instruction Manual and appended documents
carefully and can use the equipment correctly. Do not use the servo amplifier and servo motor until you have a
full knowledge of the equipment, safety information and instructions.
In this Instruction Manual, the safety instruction levels are classified into "WARNING" and "CAUTION".
WARNING Indicates that incorrect handling may cause hazardous conditions,
resulting in death or severe injury.
CAUTION Indicates that incorrect handling may cause hazardous conditions,
resulting in medium or slight injury to personnel or may cause physical
damage.
Note that the CAUTION level may lead to a serious consequence according to conditions. Please follow the
instructions of both levels because they are important to personnel safety.
What must not be done and what must be done are indicated by the following diagrammatic symbols:
: Indicates what must not be done. For example, "No Fire" is indicated by .
: Indicates what must be done. For example, grounding is indicated by .
In this Instruction Manual, instructions at a lower level than the above, instructions for other functions, and so
on are classified into "POINT".
After reading this installation guide, always keep it accessible to the operator.

A - 2
1. To prevent electric shock, note the following:
WARNING
Before wiring or inspection, turn off the power and wait for 15 minutes or more until the charge lamp turns
off. Then, confirm that the voltage between P and N is safe with a voltage tester and others. Otherwise, an
electric shock may occur. In addition, always confirm from the front of the servo amplifier, whether the
charge lamp is off or not.
Connect the servo amplifier and servo motor to ground.
Any person who is involved in wiring and inspection should be fully competent to do the work.
Do not attempt to wire the servo amplifier and servo motor until they have been installed. Otherwise, you
may get an electric shock.
Operate the switches with dry hand to prevent an electric shock.
The cables should not be damaged, stressed, loaded, or pinched. Otherwise, you may get an electric shock.
During power-on or operation, do not open the front cover of the servo amplifier. You may get an electric
shock.
Do not operate the servo amplifier with the front cover removed. High-voltage terminals and charging area
are exposed and you may get an electric shock.
Except for wiring or periodic inspection, do not remove the front cover even of the servo amplifier if the
power is off. The servo amplifier is charged and you may get an electric shock.
2. To prevent fire, note the following:
CAUTION
Install the servo amplifier, servo motor and regenerative resistor on incombustible material. Installing them
directly or close to combustibles will lead to a fire.
Always connect a magnetic contactor (MC) between the main circuit power supply and L1, L2, and L3 of
the servo amplifier, and configure the wiring to be able to shut down the power supply on the side of the
servo amplifier’s power supply. If a magnetic contactor (MC) is not connected, continuous flow of a large
current may cause a fire when the servo amplifier malfunctions.
When a regenerative resistor is used, use an alarm signal to switch main power off. Otherwise, a
regenerative transistor fault or the like may overheat the regenerative resistor, causing a fire.
3. To prevent injury, note the follow
CAUTION
Only the voltage specified in the Instruction Manual should be applied to each terminal, Otherwise, a
burst, damage, etc. may occur.
Connect the terminals correctly to prevent a burst, damage, etc.
Ensure that polarity ( , ) is correct. Otherwise, a burst, damage, etc. may occur.
Take safety measures, e.g. provide covers, to prevent accidental contact of hands and parts (cables, etc.)
with the servo amplifier heat sink, regenerative resistor, servo motor, etc.since they may be hot while
power is on or for some time after power-off. Their temperatures may be high and you may get burnt or a
parts may damaged.
During operation, never touch the rotating parts of the servo motor. Doing so can cause injury.

A - 3
4. Additional instructions
The following instructions should also be fully noted. Incorrect handling may cause a fault, injury, electric
shock, etc.
(1) Transportation and installation
CAUTION
Transport the products correctly according to their masses.
Stacking in excess of the specified number of products is not allowed.
Do not carry the servo motor by the cables, shaft or encoder.
Do not hold the front cover to transport the servo amplifier. The servo amplifier may drop.
Install the servo amplifier in a load-bearing place in accordance with the Instruction Manual.
Do not climb or stand on servo equipment. Do not put heavy objects on equipment.
The servo amplifier and servo motor must be installed in the specified direction.
Leave specified clearances between the servo amplifier and control enclosure walls or other equipment.
Do not install or operate the servo amplifier and servo motor which has been damaged or has any parts
missing.
When you keep or use it, please fulfill the following environmental conditions.
Conditions
Environment Servo amplifier Servo motor
[] 0 to 55 (non-freezing) 0 to 40 (non-freezing)
In
operation [] 32 to 131 (non-freezing) 32 to 104 (non-freezing)
[] 20 to 65 (non-freezing) 15 to 70 (non-freezing)
Ambient
temperature In storage [] 4 to 149 (non-freezing) 5 to 158 (non-freezing)
In operation 90%RH or less (non-condensing) 80%RH or less (non-condensing)
Ambient
humidity In storage 90%RH or less (non-condensing)
Ambience Indoors (no direct sunlight) Free from corrosive gas, flammable gas, oil mist, dust and dirt
Altitude Max. 1000m (3280 ft) above sea level
HC-KFS Series
HC-MFS Series
HC-UFS13 to 73
XY : 49
HC-SFS81
HC-SFS52 to 152
HC-SFS53 to 153
HC-RFS Series
HC-UFS 72 152
XY : 24.5
HC-SFS121 201
HC-SFS202 352
HC-SFS203 353
HC-UFS202
X : 24.5
Y : 49
[m/s2] 5.9 or less
HC-SFS301 X : 24.5
Y : 29.4
HC-KFS Series
HC-MFS Series
HC-UFS 13 to 73
XY : 161
HC-SFS81
HC-SFS52 to 152
HC-SFS53 to 153
HC-RFS Series
HC-UFS 72 152
XY : 80
HC-SFS121 201
HC-SFS202 352
HC-SFS203 353
HC-UFS202
X : 80
Y : 161
(Note)
Vibration
[ft/s2] 19.4 or less
HC-SFS301 X : 80
Y : 96
Note. Except the servo motor with reduction gear.

A - 4
CAUTION
Provide adequate protection to prevent screws and other conductive matter, oil and other combustible
matter from entering the servo amplifier and servo motor.
Do not drop or strike servo amplifier or servo motor. Isolate from all impact loads.
Securely attach the servo motor to the machine. If attach insecurely, the servo motor may come off during
operation.
The servo motor with reduction gear must be installed in the specified direction to prevent oil leakage.
Take safety measures, e.g. provide covers, to prevent accidental access to the rotating parts of the servo
motor during operation.
Never hit the servo motor or shaft, especially when coupling the servo motor to the machine. The encoder
may become faulty.
Do not subject the servo motor shaft to more than the permissible load. Otherwise, the shaft may break.
When the equipment has been stored for an extended period of time, consult Mitsubishi.
(2) Wiring
CAUTION
Wire the equipment correctly and securely. Otherwise, the servo motor may misoperate.
Do not install a power capacitor, surge absorber or radio noise filter (FR-BIF option) between the servo
motor and servo amplifier.
Connect the output terminals (U, V, W) correctly. Otherwise, the servo motor will operate improperly.
Connect the servo motor power terminal (U, V, W) to the servo motor power input terminal (U, V, W)
directly. Do not let a magnetic contactor, etc. intervene.
U
Servo motor
M
V
W
U
V
W
U
M
V
W
U
V
W
Servo amplifier Servo motorServo amplifier
Do not connect AC power directly to the servo motor. Otherwise, a fault may occur.
The surge absorbing diode installed on the DC output signal relay of the servo amplifier must be wired in
the specified direction. Otherwise, the forced stop (EMG) and other protective circuits may not operate.
COM
(24VDC)
RA
Control
output
signal
RA
COM
(24VDC)
Control
output
signal
Servo amplifier Servo amplifier
When the cable is not tightened enough to the terminal block (connector), the cable or terminal block
(connector) may generate heat because of the poor contact. Be sure to tighten the cable with specified
torque.

A - 5
(3) Test run adjustment
CAUTION
Before operation, check the parameter settings. Improper settings may cause some machines to perform
unexpected operation.
The parameter settings must not be changed excessively. Operation will be insatiable.
(4) Usage
CAUTION
Provide an external emergency stop circuit to ensure that operation can be stopped and power switched
off immediately.
Any person who is involved in disassembly and repair should be fully competent to do the work.
Before resetting an alarm, make sure that the run signal of the servo amplifier is off to prevent an accident.
A sudden restart is made if an alarm is reset with the run signal on.
Do not modify the equipment.
Use a noise filter, etc. to minimize the influence of electromagnetic interference, which may be caused by
electronic equipment used near the servo amplifier.
Burning or breaking a servo amplifier may cause a toxic gas. Do not burn or break a servo amplifier.
Use the servo amplifier with the specified servo motor.
The electromagnetic brake on the servo motor is designed to hold the motor shaft and should not be used
for ordinary braking.
For such reasons as service life and mechanical structure (e.g. where a ballscrew and the servo motor are
coupled via a timing belt), the electromagnetic brake may not hold the motor shaft. To ensure safety,
install a stopper on the machine side.
(5) Corrective actions
CAUTION
When it is assumed that a hazardous condition may take place at the occur due to a power failure or a
product fault, use a servo motor with electromagnetic brake or an external brake mechanism for the
purpose of prevention.
Configure the electromagnetic brake circuit so that it is activated not only by the servo amplifier signals but
also by an external forced stop (EMG).
EMGRA
24VDC
Contacts must be open when
servo-off, when an trouble (ALM)
and when an electromagnetic brake
interlock (MBR).
Electromagnetic brake
Servo motor
Circuit must be
opened during
forced stop (EMG).
When any alarm has occurred, eliminate its cause, ensure safety, and deactivate the alarm before
restarting operation.
When power is restored after an instantaneous power failure, keep away from the machine because the
machine may be restarted suddenly (design the machine so that it is secured against hazard if restarted).

A - 6
(6) Maintenance, inspection and parts replacement
CAUTION
With age, the electrolytic capacitor of the servo amplifier will deteriorate. To prevent a secondary accident
due to a fault, it is recommended to replace the electrolytic capacitor every 10 years when used in general
environment.
Please consult our sales representative.
(7) General instruction
To illustrate details, the equipment in the diagrams of this Specifications and Instruction Manual may have
been drawn without covers and safety guards. When the equipment is operated, the covers and safety
guards must be installed as specified. Operation must be performed in accordance with this Specifications
and Instruction Manual.
About processing of waste
When you discard servo amplifier, a battery (primary battery), and other option articles, please follow the law of
each country (area).
FOR MAXIMUM SAFETY
These products have been manufactured as a general-purpose part for general industries, and have not
been designed or manufactured to be incorporated in a device or system used in purposes related to
human life.
Before using the products for special purposes such as nuclear power, electric power, aerospace,
medicine, passenger movement vehicles or underwater relays, contact Mitsubishi.
These products have been manufactured under strict quality control. However, when installing the product
where major accidents or losses could occur if the product fails, install appropriate backup or failsafe
functions in the system.
EEP-ROM life
The number of write times to the EEP-ROM, which stores parameter settings, etc., is limited to 100,000. If
the total number of the following operations exceeds 100,000, the servo amplifier and/or converter unit may
fail when the EEP-ROM reaches the end of its useful life.
Write to the EEP-ROM due to parameter setting changes
Home position setting in the absolute position detection system
Write to the EEP-ROM due to device changes
Write to the EEP-ROM due to program changes
PRECAUTIONS FOR CHOOSING THE PRODUCTS
Mitsubishi will not be held liable for damage caused by factors found not to be the cause of Mitsubishi;
machine damage or lost profits caused by faults in the Mitsubishi products; damage, secondary damage,
accident compensation caused by special factors unpredictable by Mitsubishi; damages to products other
than Mitsubishi products; and to other duties.

A - 7
COMPLIANCE WITH EC DIRECTIVES
1. WHAT ARE EC DIRECTIVES?
The EC directives were issued to standardize the regulations of the EU countries and ensure smooth
distribution of safety-guaranteed products. In the EU countries, the machinery directive (effective in
January, 1995), EMC directive (effective in January, 1996) and low voltage directive (effective in January,
1997) of the EC directives require that products to be sold should meet their fundamental safety
requirements and carry the CE marks (CE marking). CE marking applies to machines and equipment
into which servo amplifiers have been installed.
(1) EMC directive
The EMC directive applies not to the servo units alone but to servo-incorporated machines and
equipment. This requires the EMC filters to be used with the servo-incorporated machines and
equipment to comply with the EMC directive. For specific EMC directive conforming methods, refer to
the EMC Installation Guidelines (IB(NA)67310).
(2) Low voltage directive
The low voltage directive applies also to servo units alone. Hence, they are designed to comply with
the low voltage directive.
This servo is certified by TUV, third-party assessment organization, to comply with the low voltage
directive.
(3) Machine directive
Not being machines, the servo amplifiers need not comply with this directive.
2. PRECAUTIONS FOR COMPLIANCE
(1) Servo amplifiers and servo motors used
Use the servo amplifiers and servo motors which comply with the standard model.
Servo amplifier series :MR-J2S-10CL to MR-J2S-700CL
MR-J2S-10CL1 to MR-J2S40CL1
Servo motor series :HC-KFS
HC-MFS
HC-SFS
HC-RFS
HC-UFS
HA-LFS
HC-LFS
(2) Configuration
Reinforced
insulating
transformer
NFB MC M
No-fuse
breaker
Magnetic
contactor
Reinforced
insulating type
24VDC
power
supply
Servo
amplifier
Servo
motor
Control box
(3) Environment
Operate the servo amplifier at or above the contamination level 2 set forth in IEC60664-1. For this
purpose, install the servo amplifier in a control box which is protected against water, oil, carbon, dust,
dirt, etc. (IP54).

A - 8
(4) Power supply
(a) Operate the servo amplifier to meet the requirements of the overvoltage category II set forth in
IEC60664-1. For this purpose, a reinforced insulating transformer conforming to the IEC or EN
Standard should be used in the power input section.
(b) When supplying interface power from external, use a 24VDC power supply which has been
insulation-reinforced in I/O.
(5) Grounding
(a) To prevent an electric shock, always connect the protective earth (PE) terminals (marked ) of the
servo amplifier to the protective earth (PE) of the control box.
(b) Do not connect two ground cables to the same protective earth (PE) terminal (marked ). Always
connect the cables to the terminals one-to-one.
PE terminals PE terminals
(c) If a leakage current breaker is used to prevent an electric shock, the protective earth (PE) terminals
(marked ) of the servo amplifier must be connected to the corresponding earth terminals.
(6) Wiring
(a) The cables to be connected to the terminal block of the servo amplifier must have crimping
terminals provided with insulating tubes to prevent contact with adjacent terminals.
Crimping terminal
Insulating tube
Cable
(b) Use the servo motor side power connector which complies with the EN Standard. The EN Standard
compliant power connector sets are available from us as options.
(7) Auxiliary equipment and options
(a) The no-fuse breaker and magnetic contactor used should be the EN or IEC standard-compliant
products of the models described in section 14.2.2.
(b) The sizes of the cables described in section 14.2.1 meet the following requirements. To meet the
other requirements, follow Table 5 and Appendix C in EN60204-1.
Ambient temperature: 40 (104) [ ( )]
Sheath: PVC (polyvinyl chloride)
Installed on wall surface or open table tray
(c) Use the EMC filter for noise reduction.
(8) Performing EMC tests
When EMC tests are run on a machine/device into which the servo amplifier has been installed, it
must conform to the electromagnetic compatibility (immunity/emission) standards after it has
satisfied the operating environment/electrical equipment specifications.
For the other EMC directive guidelines on the servo amplifier, refer to the EMC Installation
Guidelines (IB(NA)67310).

A - 9
CONFORMANCE WITH UL/C-UL STANDARD
(1) Servo amplifiers and servo motors used
Use the servo amplifiers and servo motors which comply with the standard model.
Servo amplifier series :MR-J2S-10CL to MR-J2S-700CL
MR-J2S-10CL1 to MR-J2S-40CL1
Servo motor series :HC-KFS
HC-MFS
HC-SFS
HC-RFS
HC-UFS
HA-LFS
HC-LFS
(2) Installation
Install a cooling fan of 100CFM (2.8m3/min) air flow 4 [in] (10.16 [cm]) above the servo amplifier or
provide cooling of at least equivalent capability.
(3) Short circuit rating
This servo amplifier conforms to the circuit whose peak current is limited to 5000A or less. Having
been subjected to the short-circuit tests of the UL in the alternating-current circuit, the servo
amplifier conforms to the above circuit.
(4) Capacitor discharge time
The capacitor discharge time is as listed below. To ensure safety, do not touch the charging section for
15 minutes after power-off.
Servo amplifier Discharge time [min]
MR-J2S-10CL(1) 20CL(1) 1
MR-J2S-40CL(1) 60CL 2
MR-J2S-70CL to 350CL 3
MR-J2S-500CL 700CL 5
(5) Options and auxiliary equipment
Use UL/C-UL standard-compliant products.
(6) Attachment of a servo motor
For the flange size of the machine side where the servo motor is installed, refer to “CONFORMANCE
WITH UL/C-UL STANDARD” in the Servo Motor Instruction Manual.
(7) About wiring protection
For installation in United States, branch circuit protection must be provided, in accordance with the
National Electrical Code and any applicable local codes.
For installation in Canada, branch circuit protection must be provided, in accordance with the Canada
Electrical Code and any applicable provincial codes.
<<About the manuals>>
This Instruction Manual and the MELSERVO Servo Motor Instruction Manual are required if you use
the MR-J2S-CL for the first time. Always purchase them and use the MR-J2S-CL safely.
Relevant manuals
Manual name Manual No.
MELSERVO Servo Motor Instruction Manual SH(NA)3181
EMC Installation Guidelines IB(NA)67310

A - 10
MEMO

1
CONTENTS
1. FUNCTIONS AND CONFIGURATION 1- 1 to 1-26
1.1 Introduction.............................................................................................................................................. 1- 1
1.1.1 Function block diagram ................................................................................................................... 1- 1
1.1.2 System configuration........................................................................................................................ 1- 4
1.1.3 I/O devices ......................................................................................................................................... 1- 9
1.2 Servo amplifier standard specifications ............................................................................................... 1-10
1.3 Function list ............................................................................................................................................ 1-12
1.4 Model code definition ............................................................................................................................. 1-13
1.5 Combination with servo motor.............................................................................................................. 1-14
1.6 Structure.................................................................................................................................................. 1-15
1.6.1 Part names ....................................................................................................................................... 1-15
1.6.2 Removal and reinstallation of the front cover .............................................................................. 1-19
1.7 Servo system with auxiliary equipment............................................................................................... 1-21
2. INSTALLATION 2- 1 to 2- 4
2.1 Environmental conditions....................................................................................................................... 2- 1
2.2 Installation direction and clearances .................................................................................................... 2- 2
2.3 Keep out foreign materials ..................................................................................................................... 2- 3
2.4 Cable stress .............................................................................................................................................. 2- 4
3. SIGNALS AND WIRING 3- 1 to 3-40
3.1 Standard connection example ................................................................................................................ 3- 2
3.2 Internal connection diagram of servo amplifier ................................................................................... 3- 3
3.3 I/O signals................................................................................................................................................. 3- 4
3.3.1 Connectors and signal arrangements............................................................................................. 3- 4
3.3.2 Signal (devices) explanations .......................................................................................................... 3- 5
3.4 Detailed description of signals (devices) .............................................................................................. 3-12
3.4.1 Forward rotation start Reverse rotation start Temporary stop/restart................................. 3-12
3.4.2 Movement complete......................................................................................................................... 3-13
3.4.3 Override ............................................................................................................................................ 3-14
3.4.4 Torque limit...................................................................................................................................... 3-15
3.5 Alarm occurrence timing chart ............................................................................................................. 3-17
3.6 Interfaces................................................................................................................................................. 3-18
3.6.1 Common line .................................................................................................................................... 3-18
3.6.2 Detailed description of the interfaces ............................................................................................ 3-19
3.7 Input power supply circuit..................................................................................................................... 3-23
3.7.1 Connection example ........................................................................................................................ 3-23
3.7.2 Terminals.......................................................................................................................................... 3-25
3.7.3 Power-on sequence........................................................................................................................... 3-26
3.8 Connection of servo amplifier and servo motor ................................................................................... 3-28
3.8.1 Connection instructions .................................................................................................................. 3-28
3.8.2 Connection diagram ........................................................................................................................ 3-28
3.8.3 I/O terminals .................................................................................................................................... 3-30
3.9 Servo motor with electromagnetic brake ............................................................................................. 3-32

2
3.10 Grounding ............................................................................................................................................. 3-36
3.11 Servo amplifier terminal block (TE2) wiring method....................................................................... 3-37
3.11.1 For the servo amplifier produced later than Jan. 2006 ............................................................. 3-37
3.11.2 For the servo amplifier produced earlier than Dec. 2005.......................................................... 3-39
3.12 Instructions for the 3M connector....................................................................................................... 3-40
4. OPERATION 4- 1 to 4-52
4.1 When switching power on for the first time.......................................................................................... 4- 1
4.1.1 Pre-operation checks ........................................................................................................................ 4- 1
4.1.2 Startup............................................................................................................................................... 4- 2
4.2 Program operation mode......................................................................................................................... 4- 5
4.2.1 What is program operation mode? .................................................................................................. 4- 5
4.2.2 Programming language.................................................................................................................... 4- 6
4.2.3 Basic setting of signals and parameters........................................................................................ 4-25
4.2.4 Program operation timing chart .................................................................................................... 4-26
4.3 Manual operation mode ......................................................................................................................... 4-27
4.3.1 Jog operation .................................................................................................................................... 4-27
4.3.2 Manual pulse generator operation................................................................................................. 4-29
4.4 Manual home position return mode ..................................................................................................... 4-31
4.4.1 Outline of home position return ..................................................................................................... 4-31
4.4.2 Dog type home position return ....................................................................................................... 4-33
4.4.3 Count type home position return ................................................................................................... 4-35
4.4.4 Data setting type home position return ........................................................................................ 4-37
4.4.5 Stopper type home position return ................................................................................................ 4-38
4.4.6 Home position ignorance (servo-on position defined as home position)..................................... 4-39
4.4.7 Dog type rear end reference home position return....................................................................... 4-40
4.4.8 Count type front end reference home position return.................................................................. 4-41
4.4.9 Dog cradle type home position return ........................................................................................... 4-42
4.4.10 Home position return automatic return function....................................................................... 4-43
4.5 Absolute position detection system....................................................................................................... 4-44
4.6 Serial communication operation ........................................................................................................... 4-47
4.6.1 Positioning operation in accordance with programs .................................................................... 4-47
4.6.2 Multidrop system............................................................................................................................. 4-47
4.6.3 Group designation ........................................................................................................................... 4-48
4.7 Incremental value command system .................................................................................................... 4-50
5. PARAMETERS 5- 1 to 5-26
5.1 Parameter list .......................................................................................................................................... 5- 1
5.1.1 Parameter write inhibit ................................................................................................................... 5- 1
5.1.2 List ..................................................................................................................................................... 5- 2
5.2 Detailed explanation .............................................................................................................................. 5-21
5.2.1 Electronic gear ................................................................................................................................. 5-21
5.2.2 Changing the status display screen............................................................................................... 5-22
5.2.3 S-pattern acceleration/deceleration ............................................................................................... 5-23
5.2.4 Analog output................................................................................................................................... 5-23
5.2.5 Changing the stop pattern using a limit switch........................................................................... 5-26
5.2.6 Alarm history clear.......................................................................................................................... 5-26
5.2.7 Software limit................................................................................................................................... 5-26

3
6. MR Configurator (SERVO CONFIGURATION SOFTWARE) 6- 1 to 6-22
6.1 Specifications ........................................................................................................................................... 6- 1
6.2 System configuration............................................................................................................................... 6- 1
6.3 Station setting.......................................................................................................................................... 6- 3
6.4 Parameters ............................................................................................................................................... 6- 4
6.5 Simple Program ....................................................................................................................................... 6- 6
6.5.1 Program data .................................................................................................................................... 6- 6
6.5.2 Indirect addressing........................................................................................................................... 6- 8
6.6 Device assignment method.................................................................................................................... 6-10
6.7 Test operation ......................................................................................................................................... 6-14
6.7.1 Jog operation .................................................................................................................................... 6-14
6.7.2 Positioning operation....................................................................................................................... 6-16
6.7.3 Motor-less operation........................................................................................................................ 6-18
6.7.4 Output signal (DO) forced output .................................................................................................. 6-19
6.7.5 Program test operation ................................................................................................................... 6-20
6.8 Alarm history .......................................................................................................................................... 6-22
7. DISPLAY AND OPERATION 7- 1 to 7-20
7.1 Display flowchart..................................................................................................................................... 7- 1
7.2 Status display .......................................................................................................................................... 7- 2
7.2.1 Display transition ............................................................................................................................. 7- 2
7.2.2 Display examples.............................................................................................................................. 7- 3
7.2.3 Status display list ............................................................................................................................. 7- 4
7.3 Diagnosis mode ........................................................................................................................................ 7- 5
7.3.1 Display transition ............................................................................................................................. 7- 5
7.3.2 Diagnosis mode list........................................................................................................................... 7- 6
7.4 Alarm mode .............................................................................................................................................. 7- 8
7.4.1 Display transition ............................................................................................................................. 7- 8
7.4.2 Alarm mode list................................................................................................................................. 7- 9
7.5 Parameter mode ..................................................................................................................................... 7-11
7.5.1 Parameter mode transition............................................................................................................. 7-11
7.5.2 Operation example .......................................................................................................................... 7-12
7.6 External I/O signal display.................................................................................................................... 7-14
7.7 Output signal (DO) forced output ......................................................................................................... 7-15
7.8 Test operation mode ............................................................................................................................... 7-16
7.8.1 Mode change..................................................................................................................................... 7-16
7.8.2 Jog operation .................................................................................................................................... 7-17
7.8.3 Positioning operation....................................................................................................................... 7-18
7.8.4 Motor-less operation........................................................................................................................ 7-19
8. GENERAL GAIN ADJUSTMENT 8- 1 to 8-12
8.1 Different adjustment methods ............................................................................................................... 8- 1
8.1.1 Adjustment on a single servo amplifier.......................................................................................... 8- 1
8.1.2 Adjustment using MR Configurator (servo configuration software) ........................................... 8- 2
8.2 Auto tuning .............................................................................................................................................. 8- 3
8.2.1 Auto tuning mode ............................................................................................................................. 8- 3
8.2.2 Auto tuning mode operation ............................................................................................................ 8- 4

4
8.2.3 Adjustment procedure by auto tuning............................................................................................ 8- 5
8.2.4 Response level setting in auto tuning mode .................................................................................. 8- 6
8.3 Manual mode 1 (simple manual adjustment)....................................................................................... 8- 7
8.3.1 Operation of manual mode 1 ........................................................................................................... 8- 7
8.3.2 Adjustment by manual mode 1 ....................................................................................................... 8- 7
8.4 Interpolation mode ................................................................................................................................. 8-10
8.5 Differences in auto tuning between MELSERVO-J2 and MELSERVO-J2-Super .......................... 8-11
8.5.1 Response level setting ..................................................................................................................... 8-11
8.5.2 Auto tuning selection....................................................................................................................... 8-11
9. SPECIAL ADJUSTMENT FUNCTIONS 9- 1 to 9-10
9.1 Function block diagram .......................................................................................................................... 9- 1
9.2 Machine resonance suppression filter ................................................................................................... 9- 1
9.3 Adaptive vibration suppression control................................................................................................. 9- 3
9.4 Low-pass filter ......................................................................................................................................... 9- 5
9.5 Gain changing function........................................................................................................................... 9- 5
9.5.1 Applications....................................................................................................................................... 9- 5
9.5.2 Function block diagram ................................................................................................................... 9- 6
9.5.3 Parameters ........................................................................................................................................ 9- 7
9.5.4 Gain changing operation.................................................................................................................. 9- 9
10. INSPECTION 10- 1 to 10- 2
11. TROUBLESHOOTING 11- 1 to 11-12
11.1 Trouble at start-up .............................................................................................................................. 11- 1
11.2 When alarm or warning has occurred ............................................................................................... 11- 2
11.2.1 Alarms and warning list .............................................................................................................. 11- 2
11.2.2 Remedies for alarms..................................................................................................................... 11- 3
11.2.3 Remedies for warnings................................................................................................................ 11-11
11.3 MR-DP60 external digital display error........................................................................................... 11-12
12. OUTLINE DIMENSION DRAWINGS 12- 1 to 12- 8
12.1 Servo amplifiers................................................................................................................................... 12- 1
12.2 Connectors............................................................................................................................................ 12- 6
13. CHARACTERISTICS 13- 1 to 13- 8
13.1 Overload protection characteristics ................................................................................................... 13- 1
13.2 Power supply equipment capacity and generated loss .................................................................... 13- 2
13.3 Dynamic brake characteristics........................................................................................................... 13- 4
13.3.1 Dynamic brake operation............................................................................................................. 13- 4
13.3.2 The dynamic brake at the load inertia moment ........................................................................ 13- 6
13.4 Encoder cable flexing life .................................................................................................................... 13- 6
13.5 Inrush Currents at Power-On of Main Circuit and Control Circuit .............................................. 13- 7

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14. OPTIONS AND AUXILIARY EQUIPMENT 14- 1 to 14-50
14.1 Options.................................................................................................................................................. 14- 1
14.1.1 Regenerative options .................................................................................................................... 14- 1
14.1.2 FR-BU2 brake unit....................................................................................................................... 14- 8
14.1.3 Power regeneration converter .................................................................................................... 14-14
14.1.4 Cables and connectors................................................................................................................. 14-17
14.1.5 Junction terminal block (MR-TB20) .......................................................................................... 14-25
14.1.6 Maintenance junction card (MR-J2CN3TM) ............................................................................ 14-27
14.1.7 External digital display (MR-DP60) .......................................................................................... 14-29
14.1.8 Manual pulse generator (MR-HDP01) ...................................................................................... 14-31
14.1.9 Battery (MR-BAT, A6BAT)......................................................................................................... 14-32
14.2 Auxiliary equipment .......................................................................................................................... 14-33
14.2.1 Recommended wires.................................................................................................................... 14-33
14.2.2 No-fuse breakers, fuses, magnetic contactors........................................................................... 14-35
14.2.3 Power factor improving reactors ................................................................................................ 14-35
14.2.4 Relays............................................................................................................................................ 14-36
14.2.5 Surge absorbers ........................................................................................................................... 14-36
14.2.6 Noise reduction techniques......................................................................................................... 14-37
14.2.7 Leakage current breaker ............................................................................................................ 14-44
14.2.8 EMC filter..................................................................................................................................... 14-46
14.2.9 Setting potentiometers for analog inputs.................................................................................. 14-49
15. COMMUNICATION FUNCTIONS 15- 1 to 15-36
15.1 Configuration ....................................................................................................................................... 15- 1
15.1.1 RS-422 configuration.................................................................................................................... 15- 1
15.1.2 RS-232C configuration ................................................................................................................. 15- 2
15.2 Communication specifications............................................................................................................ 15- 3
15.2.1 Communication overview............................................................................................................. 15- 3
15.2.2 Parameter setting......................................................................................................................... 15- 4
15.3 Protocol ................................................................................................................................................. 15- 5
15.4 Character codes ................................................................................................................................... 15- 7
15.5 Error codes ........................................................................................................................................... 15- 8
15.6 Checksum ............................................................................................................................................. 15- 8
15.7 Time-out operation .............................................................................................................................. 15- 9
15.8 Retry operation .................................................................................................................................... 15- 9
15.9 Initialization........................................................................................................................................ 15-10
15.10 Communication procedure example ............................................................................................... 15-10
15.11 Command and data No. list............................................................................................................. 15-11
15.11.1 Read commands ......................................................................................................................... 15-11
15.11.2 Write commands........................................................................................................................ 15-14
15.12 Detailed explanations of commands............................................................................................... 15-16
15.12.1 Data processing.......................................................................................................................... 15-16
15.12.2 Status display ............................................................................................................................ 15-18
15.12.3 Parameter................................................................................................................................... 15-19
15.12.4 External I/O signal statuses..................................................................................................... 15-21
15.12.5 Input devices ON/OFF .............................................................................................................. 15-23
15.12.6 Disable/enable of I/O devices (DIO) ......................................................................................... 15-24

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15.12.7 Input devices ON/OFF (test operation) ................................................................................... 15-25
15.12.8 Test operation mode .................................................................................................................. 15-26
15.12.9 Output signal pin ON/OFF output signal (DO) forced output.............................................. 15-29
15.12.10 Alarm history ........................................................................................................................... 15-30
15.12.11 Current alarm .......................................................................................................................... 15-31
15.12.12 Current position latch data .................................................................................................... 15-32
15.12.13 General-purpose register ........................................................................................................ 15-33
15.12.14 Servo amplifier group designation......................................................................................... 15-35
15.12.15 Software version ...................................................................................................................... 15-36
APPENDIX App- 1 to App- 4
App 1. Status indication block diagram ................................................................................................. App- 1
App 2. Junction terminal block (MR-TB20) terminal block labels ...................................................... App- 2
App 3. Combination of servo amplifier and servo motor ...................................................................... App- 3
App 4. Change of connector sets to the RoHS compatible products .................................................... App- 4

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Optional Servo Motor Instruction Manual CONTENTS
The rough table of contents of the optional MELSERVO Servo Motor Instruction Manual is introduced
here for your reference. Note that the contents of the Servo Motor Instruction Manual are not included in
the Servo Amplifier Instruction Manual.
1. INTRODUCTION
2. INSTALLATION
3. CONNECTORS USED FOR SERVO MOTOR WIRING
4. INSPECTION
5. SPECIFICATIONS
6. CHARACTERISTICS
7. OUTLINE DIMENSION DRAWINGS
8. CALCULATION METHODS FOR DESIGNING

8
MEMO

1 - 1
1. FUNCTIONS AND CONFIGURATION
1. FUNCTIONS AND CONFIGURATION
1.1 Introduction
The MR-J2S-CL program-compatible AC servo amplifier is based on the MR-J2S-CP AC servo amplifier
with built-in positioning functions and incorporates program-driven, single-axis positioning functions.
These functions perform positioning operation by creating the position data (target positions), servo motor
speeds, acceleration and deceleration time constants, etc. as a program and executing the program. The
servo amplifier is the most appropriate to configure a simple positioning system or to simplify a system,
for example.
Up to 16 programs can be created. The program capacity is 120 steps as a total of all programs.
All servo motors are equipped with an absolute position encoder as standard. An absolute position
detection system can be configured by merely adding a battery to the servo amplifier. Once the home
position has been set, home position return is not required at power on, alarm occurrence, etc.
1.1.1 Function block diagram
The function block diagram of this servo is shown below.