Mitsubishi Electronics MR-J2M-P8B User Manual

General-Purpose AC Servo
SSCNET Compatible
MODEL
MR-J2M-P8B MR-J2M- DU MR-J2M-BU
SERVO AMPLIFIER INSTRUCTION MANUAL
G

Safety Instructions

(Always read these instructions before using the equipment.)
Do not attempt to install, operate, maintain or inspect the units until you have read through this Instruction Manual, Installation Guide, Servo Motor Instruction Manual and appended documents carefully and can use the equipment properly. Do not use the units 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".
Indicates that incorrect handling may cause hazardous conditions,
WARNING
CAUTION
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:
resulting in death or severe injury.
Indicates that incorrect handling may cause hazardous conditions, resulting in medium or slight injury to personnel or may cause physical
damage.
: 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 Instruction Manual, always keep it accessible to the operator.
.
.
A - 1
1. To prevent electric shock, note the following:
WARNING
Before wiring or inspection, switch power off and wait for more than 15 minutes. Then, confirm the voltage is safe with voltage tester. Otherwise, you may get an electric shock.
Connect the base unit 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 for each unit and the servo motor until they are installed. Otherwise, you can obtain the 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
Do not install the base unit, servo motor and regenerative brake resistor on or near combustibles. Otherwise a fire may cause.
When each unit has become faulty, switch off the main base unit power side. Continuous flow of a large current may cause a fire.
When a regenerative brake resistor is used, use an alarm signal to switch main power off. Otherwise, a regenerative brake transistor fault or the like may overheat the regenerative brake 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 brake 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.
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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 each unit. Each unit may drop.
Install the each unit 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 controller and servo motor must be installed in the specified direction.
Leave specified clearances between the base unit and control enclosure walls or other equipment.
Do not install or operate the unit and servo motor which has been damaged or has any parts missing.
Provide adequate protection to prevent screws and other conductive matter, oil and other combustible matter from entering each unit and servo motor.
Do not drop or strike each unit or servo motor. Isolate from all impact loads.
When you keep or use it, please fulfill the following environmental conditions.
Environment
During Ambient temperature
Ambient humidity
Ambience Indoors (no direct sunlight) Free from corrosive gas, flammable gas, oil mist, dust and dirt Altitude Max. 1000m (3280 ft) above sea level
(Note) Vibration
Note. Except the servo motor with reduction gear.
operation
In storage
During
operation
In storage 90%RH or less (non-condensing)
[ ] 0 to 55 (non-freezing) 0 to 40 (non-freezing) [
] 32 to 131 (non-freezing) 32 to 104 (non-freezing) [ ] 20 to 65 (non-freezing) 15 to 70 (non-freezing) [
] 4 to 149 (non-freezing) 5 to 158 (non-freezing)
90%RH or less (non-condensing) 80%RH or less (non-condensing)
[m/s2] 5.9 or less
2
] 19.4 or less
[ft/s
Each unit Servo motor
Conditions
HC-KFS Series HC-MFS Series
HC-UFS13 to 43
HC-KFS Series HC-MFS Series
HC-UFS13 to 43
X Y : 49
X Y : 161
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.
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(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 drive unit.
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.
Drive unit
U
V
W
Servo Motor
U
V
W
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 and other protective circuits may not operate.
Interface unit
VIN
SG
Control output
signal
Interface unit
VIN
SG
Control output
signal
RARA
(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.
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(4) Usage
CAUTION
Provide a 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 MELSERVO-J2M.
Burning or breaking each unit may cause a toxic gas. Do not burn or break each unit.
Use the drive unit 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 interface unit signals but also by a forced stop (EM1).
Contacts must be open when servo-off, when an alarm occurrence and when an electromagnetic brake interlock (MBR).
Servo motor
Electromagnetic brake
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).
Circuit must be opened during forced stop (EM1).
EM1RA
24VDC
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(6) Maintenance, inspection and parts replacement
CAUTION
With age, the electrolytic capacitor of the drive unit 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 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 Instruction Manual.
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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 under water 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
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.
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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 (MELSERVO-J2M is contained) 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 MELSERVO-J2M. Hence, they are designed to comply with the low voltage directive. MELSERVO-J2M is certified by TUV, third-party assessment organization, to comply with the low voltage directive.
(3) Machine directive
Not being machines, MELSERVO-J2M need not comply with this directive.
2. PRECAUTIONS FOR COMPLIANCE
(1) Unit and servo motors used
Use each units and servo motors which comply with the standard model.
Drive unit :MR-J2M­Interface unit :MR-J2M-P8B Base unit :MR-J2M-BU Servo motor :HC-KFS
HC-MFS HC-UFS
(2) Configuration
DU
Reinforced insulating transformer
No-fuse breaker
NFB
Control box
Magnetic contactor
Reinforced insulating type
24VDC power supply
MELSERVO­J2M
MC
Servo motor
M
A - 8
(3) Environment
Operate MELSERVO-J2M at or above the contamination level 2 set forth in IEC60664-1. For this purpose, install MELSERVO-J2M in a control box which is protected against water, oil, carbon, dust, dirt, etc. (IP54).
(4) Power supply
(a) Operate MELSERVO-J2M 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
base unit to the protective earth (PE) of the control box.
(b) Do not connect two ground cables to the same protective earth (PE) terminal. Always connect the
cables to the terminals one-to-one.
(c) If a leakage current breaker is used to prevent an electric shock, the protective earth (PE) terminals
of the base unit must be connected to the corresponding earth terminals.
) of the
(d) The protective earth (PE) of the servo motor is connected to the protective earth of the base unit via
the screw which fastens the drive unit to the base unit. When fixing the drive unit to the base unit, therefore, tighten the accessory screw securely.
(6) 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 12.2.2.
(b) The sizes of the cables described in Section 12.2.1 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.
(7) Performing EMC tests
When EMC tests are run on a machine/device into which MELSERVO-J2M 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 MELSERVO-J2M, refer to the EMC Installation Guidelines(IB(NA)67310).
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CONFORMANCE WITH UL/C-UL STANDARD

The MELSERVO-J2M complies with UL508C.
(1) Unit and servo motors used
Use the each units and servo motors which comply with the standard model. Drive unit :MR-J2M­Interface unit :MR-J2M-P8B Base unit :MR-J2M-BU Servo motor :HC-KFS
HC-MFS HC-UFS
DU
(2) Installation
Install a fan of 100CFM (2.8m
3
/min)air flow 4 in (10.16 cm) above MELSERVO-J2M or provide cooling
of at least equivalent capability.
(3) Short circuit rating
MELSERVO-J2M 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, MELSERVO-J2M
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.
Base unit Discharge time [min]
MR-J2M-BU4 3 MR-J2M-BU6 4 MR-J2M-BU8 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 MELSERVO-J2M for the first time. Always purchase them and use the MELSERVO-J2M safely. Also read the manual of the servo system controller.
Relevant manuals
Manual name Manual No.
MELSERVO-J2M Series To Use the AC Servo Safely (Packed with the MR-J2M-P8B, MR-J2M­MELSERVO Servo Motor Instruction Manual SH(NA)3181 EMC Installation Guidelines IB(NA)67310
BU and MR-J2M-BU )
IB(NA)0300027
In this Instruction Manual, the drive unit, interface unit and base unit may be referred to as follows: Drive unit : DRU Interface unit : IFU Base unit : BU
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CONTENTS

1. FUNCTIONS AND CONFIGURATION 1- 1 to 1-10
1.1 Overview................................................................................................................................................... 1- 1
1.2 Function block diagram ..........................................................................................................................1- 2
1.3 Unit standard specifications................................................................................................................... 1- 3
1.4 Function list ............................................................................................................................................. 1- 4
1.5 Model code definition .............................................................................................................................. 1- 5
1.6 Combination with servo motor............................................................................................................... 1- 6
1.7 Parts identification.................................................................................................................................. 1- 7
1.8 Servo system with auxiliary equipment................................................................................................ 1- 9
2. INSTALLATION AND START UP 2- 1 to 2-10
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- 3
2.5 Mounting method ....................................................................................................................................2- 4
2.6 When switching power on for the first time.......................................................................................... 2- 6
2.7 Start up..................................................................................................................................................... 2- 7
2.8 Control axis selection .............................................................................................................................. 2- 9
3. SIGNALS AND WIRING 3- 1 to 3-28
3.1 Connection example of control signal system ....................................................................................... 3- 2
3.2 I/O signals of interface unit .................................................................................................................... 3- 4
3.2.1 Connectors and signal arrangements .............................................................................................3- 4
3.2.2 Signal explanations .......................................................................................................................... 3- 5
3.2.3 Interfaces ...........................................................................................................................................3- 6
3.3 Signals and wiring for extension IO unit ..............................................................................................3- 9
3.3.1 Connection example ......................................................................................................................... 3- 9
3.3.2 Connectors and signal configurations ........................................................................................... 3-11
3.3.3 Output signal explanations ............................................................................................................3-12
3.4 Signals and wiring for base unit ........................................................................................................... 3-14
3.4.1 Connection example of power line circuit...................................................................................... 3-14
3.4.2 Connectors and signal configurations ........................................................................................... 3-16
3.4.3 Terminals.......................................................................................................................................... 3-17
3.4.4 Power-on sequence........................................................................................................................... 3-18
3.5 Connection of drive unit and servo motor ............................................................................................3-19
3.5.1 Connection instructions ..................................................................................................................3-19
3.5.2 Connection diagram ........................................................................................................................ 3-19
3.5.3 I/O terminals .................................................................................................................................... 3-20
3.6 Alarm occurrence timing chart .............................................................................................................3-21
3.7 Servo motor with electromagnetic brake ............................................................................................. 3-22
3.8 Grounding................................................................................................................................................ 3-26
3.9 Instructions for the 3M connector......................................................................................................... 3-27
1
4. OPERATION AND DISPLAY 4- 1 to 4-10
4.1 Normal indication.................................................................................................................................... 4- 1
4.1.1 Display sequence............................................................................................................................... 4- 2
4.1.2 If alarm/warning occurs ................................................................................................................... 4- 3
4.2 Status display mode of interface unit.................................................................................................... 4- 4
4.2.1 Display flowchart.............................................................................................................................. 4- 4
4.2.2 Status display of interface unit .......................................................................................................4- 5
4.2.3 Diagnostic mode of interface unit ................................................................................................... 4- 6
4.2.4 Alarm mode of interface unit........................................................................................................... 4- 7
4.2.5 Interface unit parameter mode ....................................................................................................... 4- 8
4.2.6 Output signal (DO) forced output ................................................................................................... 4- 9
5. PARAMETERS 5- 1 to 5-26
5.1 Drive unit .................................................................................................................................................5- 1
5.1.1 Parameter write inhibit ...................................................................................................................5- 1
5.1.2 Lists.................................................................................................................................................... 5- 2
5.2 Interface unit ..........................................................................................................................................5-15
5.2.1 IFU parameter write inhibit........................................................................................................... 5-15
5.2.2 Lists...................................................................................................................................................5-15
5.2.3 Analog monitor................................................................................................................................. 5-21
5.2.4 Test operation mode ........................................................................................................................5-24
6. GENERAL GAIN ADJUSTMENT 6- 1 to 6-12
6.1 Different adjustment methods ...............................................................................................................6- 1
6.1.1 Adjustment on a MELSERVO-J2M................................................................................................ 6- 1
6.1.2 Adjustment using MR Configurator (servo configuration software) ........................................... 6- 3
6.2 Auto tuning ..............................................................................................................................................6- 4
6.2.1 Auto tuning mode .............................................................................................................................6- 4
6.2.2 Auto tuning mode operation ............................................................................................................ 6- 5
6.2.3 Adjustment procedure by auto tuning............................................................................................ 6- 6
6.2.4 Response level setting in auto tuning mode .................................................................................. 6- 7
6.3 Manual mode 1 (simple manual adjustment)....................................................................................... 6- 8
6.3.1 Operation of manual mode 1 ........................................................................................................... 6- 8
6.3.2 Adjustment by manual mode 1 ....................................................................................................... 6- 8
6.4 Interpolation mode ................................................................................................................................. 6-11
7. SPECIAL ADJUSTMENT FUNCTIONS 7- 1 to 7-10
7.1 Function block diagram ..........................................................................................................................7- 1
7.2 Machine resonance suppression filter ................................................................................................... 7- 1
7.3 Adaptive vibration suppression control................................................................................................. 7- 3
7.4 Low-pass filter ......................................................................................................................................... 7- 4
7.5 Gain changing function........................................................................................................................... 7- 5
7.5.1 Applications ...................................................................................................................................... 7- 5
7.5.2 Function block diagram ...................................................................................................................7- 5
7.5.3 Parameters........................................................................................................................................ 7- 6
7.5.4 Gain changing operation .................................................................................................................7- 8
8. INSPECTION 8- 1 to 8- 2
2
9. TROUBLESHOOTING 9- 1 to 9-10
9.1 Alarms and warning list ......................................................................................................................... 9- 1
9.2 Remedies for alarms................................................................................................................................ 9- 3
9.3 Remedies for warnings........................................................................................................................... 9-10
10. OUTLINE DRAWINGS 10- 1 to 10- 10
10.1 MELSERVO-J2M configuration example.........................................................................................10- 1
10.2 Unit outline drawings .........................................................................................................................10- 2
10.2.1 Base unit (MR-J2M-BU
)........................................................................................................... 10- 2
10.2.2 Interface unit (MR-J2M-P8B) .....................................................................................................10- 2
10.2.3 Drive unit (MR-J2M-
DU)......................................................................................................... 10- 3
10.2.4 Extension IO unit (MR-J2M-D01) ..............................................................................................10- 4
10.2.5 Battery unit (MR-J2M-BT).......................................................................................................... 10- 4
10.3 Connector .............................................................................................................................................10- 5
11. CHARACTERISTICS 11- 1 to 11- 6
11.1 Overload protection characteristics ...................................................................................................11- 1
11.2 Power supply equipment capacity and generated loss ....................................................................11- 2
11.3 Dynamic brake characteristics...........................................................................................................11- 4
11.4 Encoder cable flexing life ....................................................................................................................11- 6
12. OPTIONS AND AUXILIARY EQUIPMENT 12- 1 to 12-36
12.1 Options.................................................................................................................................................. 12- 1
12.1.1 Regenerative brake options ......................................................................................................... 12- 1
12.1.2 Cables and connectors ..................................................................................................................12- 8
12.1.3 Maintenance junction card (MR-J2CN3TM) ............................................................................12-21
12.1.4 MR Configurator (servo configurations software) ....................................................................12-23
12.2 Auxiliary equipment ..........................................................................................................................12-25
12.2.1 Recommended wires ....................................................................................................................12-25
12.2.2 No-fuse breakers, fuses, magnetic contactors........................................................................... 12-26
12.2.3 Power factor improving reactors ................................................................................................12-27
12.2.4 Relays............................................................................................................................................ 12-28
12.2.5 Surge absorbers ...........................................................................................................................12-28
12.2.6 Noise reduction techniques.........................................................................................................12-28
12.2.7 Leakage current breaker ............................................................................................................ 12-34
12.2.8 EMC filter..................................................................................................................................... 12-35
13. ABSOLUTE POSITION DETECTION SYSTEM 13- 1 to 13- 4
13.1 Features................................................................................................................................................ 13- 1
13.2 Specifications .......................................................................................................................................13- 2
13.3 Confirmation of absolute position detection data............................................................................. 13- 3
APPENDIX App- 1 to App- 2
App 1. Status indication block diagram ................................................................................................. App- 1
3
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 this 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
4

1. FUNCTIONS AND CONFIGURATION

)
1. FUNCTIONS AND CONFIGURATION

1.1 Overview

The Mitsubishi general-purpose AC servo MELSERVO-J2M series is an AC servo which has realized wiring-saving, energy-saving and space-saving in addition to the high performance and high functions of the MELSERVO-J2-Super series. Connected with a servo system controller or like by a serial bus (SSCNET), the equipment reads position data directly to perform operation. Data from a command unit are used to control the speeds and directions of servo motors and execute precision positioning. The MELSERVO-J2M series consists of an interface unit (abbreviated to the IFU) to be connected with a servo system controller, drive units (abbreviated to the DRU) for driving and controlling servo motors, and a base unit (abbreviated to the BU) where these units are installed. A torque limit is applied to the drive unit by the clamp circuit to protect the main circuit power transistors from overcurrent caused by abrupt acceleration/deceleration or overload. In addition, the torque limit value can be changed as desired using the parameter. The interface unit has an RS-232C serial communication function to allow the parameter setting, test operation, status indication monitoring, gain adjustment and others of all units to be performed using a personal computer or like where the MR Configurator (servo configuration software) is installed. By choosing the axis number of the drive unit using the MR Configurator (servo configuration software), you can select the unit to communicate with, without changing the cabling. The real-time auto tuning function automatically adjusts the servo gains according to a machine. The MELSERVO-J2M series supports as standard the absolute position encoders which have 131072 pulses/rev resolution, ensuring control as accurate as that of the MELSERVO-J2-Super series. Simply adding the optional battery unit configures an absolute position detection system. Hence, merely setting a home position once makes it unnecessary to perform a home position return at power-on, alarm occurrence or like. The MELSERVO-J2M series has a control circuit power supply in the interface unit and main circuit converter and regenerative functions in the base unit to batch-wire the main circuit power input, regenerative brake connection and control circuit power input, achieving wiring-saving. In the MELSERVO-J2M series, main circuit converter sharing has improved the capacitor regeneration capability dramatically. Except for the operation pattern where all axes slow down simultaneously, the capacitor can be used for regeneration. You can save the energy which used to be consumed by the regenerative brake resistor.
Regenerative brake option
Control circuit power input
Bus cable connections
Main circuit power input
Extension IO unit MR-J2M-D01
Encoder pulse output extension DIO (Axes 1 to 4)
Encoder cable
Encoder pulse output extension DIO (Axes 5 to 8
Servo motor power cable
Personal computer connection Analog monitor Forced stop input Electromagnetic brake interlock output
1 - 1
1. FUNCTIONS AND CONFIGURATION

1.2 Function block diagram

Base unit Interface unit
CNP1B
Power supply 3-phase 200 to
NFB MC
FR-BAL
230VAC (Note) 1-phase 200 to 230VAC
Regenerative brake option
CNP1A
L11
L
L1
L2
L
21
P
N
C
CNP3
3
Regener-
ative TR
Inrush
I/F Control
Controller or Servo amplifier
Position command
I/F Control
CN1ACN1BCN3CNP2CN2CNP2CN2
Servo amplifier or termination connector
current
suppression
circuit
RS-232C
D/A
Personal computer
Analog monitor (3 channels)
Drive unit
Dynamic
Servo motor
brake
(Earth)
U V W
Encoder
M
Base amplifier
Actual position control
Position command input
Model position
Model position control
Overcurrent
protection
Actual speed control
Model speed
Model speed control
Current control
Model torque
Virtual servo motor
Current detector
Current
detection
Virtual encoder
Drive unit
Drive unit
CON3A-3H CON3A-3H CON3A-3H
Note. For 1-phase 200 to 230VAC, connect the power supply to L
1 - 2
Dynamic brake
Current
detection
Dynamic brake
Current
detection
, L2 and leave L3 open.
1
CNP2CN2
Servo motor
(Earth)
U V
M
W
Encoder
Servo motor
(Earth)
U V
M
W
Encoder
1. FUNCTIONS AND CONFIGURATION

1.3 Unit standard specifications

(1) Base unit
Model MR-J2M-BU4 MR-J2M-BU6 MR-J2M-BU8
Number of slots 4 6 8
(Note)
Control circuit power supply
Main circuit power supply
Function Converter function, regenerative control, rushing into current control function
Protective functions
Mass
Note. The control circuit power supply is recorded to the interface unit.
Voltage/frequency 3-phase 200 to 230VAC or 1-phase 200 to 230VAC, 50/60Hz Permissible voltage fluctuation 1-phase 170 to 253VAC Permissible frequency fluctuation Within 5%
Inrush current 20A (5ms)
Voltage/frequency 3-phase 200 to 230VAC or 1-phase 200 to 230VAC, 50/60Hz Permissible voltage fluctuation 3-phase 170 to 253VAC or 1-phase 170 to 253VAC, 50/60Hz Permissible frequency fluctuation Within 5% Maximum servo motor connection capacity [W] Continuous capacity [W] 1280 1920 2560 Inrush current 62.5A (15ms)
[kg] 1.1 1.3 1.5
[lb] 2.4 2.9 3.3
1600 2400 3200
Regenerative overvoltage shut-off, regenerative fault protection,
undervoltage /instantaneous power failure protection
(2) Drive unit
Model MR-J2M-10DU MR-J2M-20DU MR-J2M-40DU MR-J2M-70DU
Power supply
Control system Sine-wave PWM control, current control system Dynamic brake Built-in
Protective functions
Structure Open (IP00) Cooling method Self-cooled Force-cooling (With built-in fan unit)
Mass
Voltage/frequency 270 to 311VDC Permissible voltage fluctuation 230 to 342VDC
Overcurrent shut-off, functions overload shut-off (electronic thermal relay),
servo motor overheat protection, encoder fault protection, overspeed
protection, excessive error protection
[kg] 0.4 0.4 0.4 0.7
[lb] 0.89 0.89 0.89 1.54
(3) Interface unit
Model MR-J2M-P8B
Control circuit power supply Power supply circuit for each unit(8 slots or less) Interface SSCNET interface 1channel RS-232C interface 1channel
DIO
AIO Analog monitor 3channel Structure Open (IP00)
Mass
[kg] 0.5
[lb] 1.10
Forced stop input(1 point), Electromagnetic brake sequence output
(1 point)
1 - 3
1. FUNCTIONS AND CONFIGURATION

1.4 Function list

The following table lists the functions of this servo. For details of the functions, refer to the Reference field.
(1) Drive unit (Abbreviation DRU)
Function Description Reference
High-resolution encoder High-resolution encoder of 131072 pulses/rev is used as a servo motor encoder.
Auto tuning
Adaptive vibration suppression control
Low-pass filter
Slight vibration suppression control Forced stop signal automatic ON
Torque limit Servo motor torque can be limited to any value.
Automatically adjusts the gain to optimum value if load applied to the servo motor shaft varies. MELSERVO-J2M detects mechanical resonance and sets filter characteristics automatically to suppress mechanical vibration. Suppresses high-frequency resonance which occurs as servo system response is increased.
Suppresses vibration of 1 pulse produced at a servo motor stop.
Forced stop (EM1) can be automatically switched on internally to invalidate it.
Chapter 6
Section 7.3
Section 7.4
DRU Parameter No.24 DRU Parameter No.23 DRU Parameters No.10, No.11
(2) Interface unit (Abbreviation IFU)
Function Description Reference
Forced stop signal input Disconnect forced stop (EM1) to bring the servo motor to a forced stop state, in
which the servo is switched off and the dynamic brake is operated.
In the servo-off or alarm status, this signal is disconnected. Electromagnetic brake output
Analog monitor Servo status is output in terms of voltage in real time. Section 5.2.3
When an alarm occurs, they are disconnected, independently of the base circuit
status.
It is possible to use it to excite an electromagnetic brake.
Section 3.2.2
Section 3.2.2
(3) Base unit (Abbreviation BU)
Function Description Reference
Regenerative brake option
Used when the built-in regenerative brake resistor of the unit does not have
sufficient regenerative capability for the regenerative power generated.
Section 12.1.1
(4) MR Configurator (servo configuration software)
Function Description Reference
Machine analyzer function Analyzes the frequency characteristic of the mechanical system.
Machine simulation
Gain search function Can simulate machine motions on the basis of the machine analyzer results. Test operation mode JOG operation and positioning operation are possible.
Can simulate machine motions on a personal computer screen on the basis of the
machine analyzer results.
(5) Option unit
Function Description Reference
Absolute position detection system
Encoder pulse output
Merely setting a home position once makes home position return unnecessary at
every power-on.
Battery unit MR-J2M-BT is necessary.
The encoder feedback is output from enhancing IO unit MR-J2M-D01 by the
B Z phase pulse. The number of pulses output by the parameter can be
A
changed.
1 - 4
1. FUNCTIONS AND CONFIGURATION

1.5 Model code definition

(1) Drive unit
(a) Rating plate
SON
MODEL
MR-J2M-40DU
POWER INPUT OUTPUT SERIAL TC300A***G51
MITSUBISHI ELECTRIC
(b) Model code
ALM
400W DC270V-311V 170V 0-360Hz 2.3A N9Z95046
MR-J2M- DU
Rating plate
Model Capacity Applicable power supply Rated output current Serial number
Rating plate
Rated output
Symbol Capacity of applied servo motor
10 20 40 70
100 200 400 750
(2) Interface unit
(a) Rating plate
MITSUBISHI
MODEL
POWER : AC INPUT:
OUTPUT : SERIAL :A5*******
MITSUBISHI ELECTRIC CORPORATION
MADE IN JAPAN
(b) Model code
AC SERVO
MR-J2M-P8B
75W 2PH AC200-230V 50Hz 2PH AC200-230V 60Hz
DC5/12/20 4.6A/1.2/0.7A
TC3**AAAAG52
PASSED
MR-J2M-P8B
Model
Input capacity
Applicable power supply
Output voltage / current
Serial number
SSCNET compatible
1 - 5
Rating plate
1. FUNCTIONS AND CONFIGURATION
(3) Base unit
(a) Rating plate
Rating plate
MITSUBISHI
MODEL
MR-J2M-BU4
INPUT :
SERIAL:
N87B95046 BC336U246
MITSUBISHI ELECTRIC
MADE IN JAPAN
(b) Model code
MR-J2M-BU
3PH 200-230 14A 50/60Hz
PASSED
Model Applicable power supply Serial number
Symbol
Number of slots
4 61920 8
Maximum servo motor connection capacity [W]
4 6 8
1600 2400 3200
Continuous capacity [W]
1280
2560

1.6 Combination with servo motor

The following table lists combinations of drive units and servo motors. The same combinations apply to the models with electromagnetic brakes and the models with reduction gears.
Drive unit
MR-J2M-10DU 053 13 053 13 13 MR-J2M-20DU 23 23 23 MR-J2M-40DU 43 43 43 MR-J2M-70DU 73 73 73
HC-KFS
Servo motor
HC-MFS HC-UFS
1 - 6
1. FUNCTIONS AND CONFIGURATION

1.7 Parts identification

(1) Drive unit
Status indicator LED
Indicates the status of the drive unit. Blinking green: Servo off status Steady green: Servo on status Blinking red: Warning status Steady red: Alarm status
CN2 Encoder connector Connect the servo motor encoder
CNP2 Servo motor connector
For connection of servo motor power line cable
(2) Interface unit
Mounting screw
Rating plate
CN1A Bus cable connector
For connection of servo system controller or preceding-axis servo amplifier.
CN3 For connection of personal computer (RS-232C). Outputs analog monitor.
Display Indicates operating status or alarm.
Pushbutton switches Used to change status indication or set IFU parameters.
Mounting screw
Display/setting cover
CN1B Bus cable connector For connection of subsequent-axis servo
amplifier or MR-A-TM termination connector.
Charge lamp Lit when main circuit capacitor carries electrical charge. When this lamp is on, do not remove/reinstall any unit from/to base unit and do not unplug/plug cable and connector from/into any unit.
1 - 7
1. FUNCTIONS AND CONFIGURATION
r
(3) Base unit
The following shows the MR-J2M-BU4.
CNP1B Control circuit power input connector
CNP1A Regenerative brake option connector
CON3A First slot connector
CON3C Third slot connector
CNP3 Main circuit power input connector
CON1,CON2 Interface unit connectors
CON3B Second slot connector
CON4 Option slot connector
CON5 Battery unit connecto
CON3D Fourth slot connector
1 - 8
1. FUNCTIONS AND CONFIGURATION
r

1.8 Servo system with auxiliary equipment

WARNING
3-phase 200V to 230VAC (Note) 1-phase 200V to 230VAC power supply
No-fuse breake (NFB) or fuse
Magnetic contactor (MC)
To prevent an electric shock, always connect the protective earth (PE) terminal (terminal marked
Options and auxiliary equipment
No-fuse breaker
Magnetic contactor MR Configurator
(servo configuration software)
11
L
L
21
Regenerative brake option
Control circuit power supply
) of the base unit to the protective earth (PE) of the control box.
Reference
Section 12.2.2
Section 12.2.2
Section 12.1.4
Servo system
controller
or Preceding axis servo amplifier
To CN1A To CN1B
Options and auxiliary equipment
Regenerative brake option
Cables
Power factor improving reactor
Subsequent axis
servo amplifier
or
Termination
connector
Reference
Section 12.1.1
Section 12.2.1
Section 12.2.3
Power factor improving reactor (FR-BAL)
1
L
L2
L3
Main circuit power supply
MR Configurator (servo configuration software)
P C
To CNP1A
To CNP1B
Encoder cable
To CNP3
To CN3
Personal computer
Power supply lead
Note. For 1-phase 200 to 230VAC, connect the power supply to L
, L2 and leave L3 open.
1
1 - 9
1. FUNCTIONS AND CONFIGURATION
MEMO
1 - 10

2. INSTALLATION AND START UP

2. INSTALLATION AND START UP
Stacking in excess of the limited number of products is not allowed. Install the equipment to incombustibles. Installing them directly or close to
combustibles will led to a fire.
Install the equipment in a load-bearing place in accordance with this Instruction
Manual.
Do not get on or put heavy load on the equipment to prevent injury. Use the equipment within the specified environmental condition range. Provide an adequate protection to prevent screws, metallic detritus and other
CAUTION
conductive matter or oil and other combustible matter from entering each unit.
Do not block the intake/exhaust ports of each unit. Otherwise, a fault may occur. Do not subject each unit to drop impact or shock loads as they are precision
equipment.
Do not install or operate a faulty unit. When the product has been stored for an extended period of time, consult
Mitsubishi.
When treating the servo amplifier, be careful about the edged parts such as the
corners of the servo amplifier.

2.1 Environmental conditions

The following environmental conditions are common to the drive unit, interface unit and base unit.
Environment Conditions
During Ambient temperature
Ambient humidity
Ambience
Altitude Max. 1000m (3280 ft) above sea level
Vibration
operation
In storage
During operation
In storage
[ ]0 to 55 (non-freezing)
] 32 to 131 (non-freezing)
[ [ ] 20 to 65 (non-freezing)
] 4 to 149 (non-freezing)
[
90%RH or less (non-condensing)
Indoors (no direct sunlight)
Free from corrosive gas, flammable gas, oil mist, dust and dirt
[m/s2] 5.9 [m/s2] or less
2
[ft/s
] 19.4 [ft/s2] or less
2 - 1
2. INSTALLATION AND START UP

2.2 Installation direction and clearances

The equipment must be installed in the specified direction. Otherwise, a fault may
CAUTION
(1) Installation of one MELSERVO-J2M
occur.
Leave specified clearances between each unit and control box inside walls or other
equipment.
40mm(1.57inch) or more
40mm(1.57inch) or more
40mm(1.57inch) or more
40mm(1.57inch) or more
(2) Installation of two or more MELSERVO-J2M
When installing two units vertically, heat generated by the lower unit influences the ambient temperature of the upper unit. Suppress temperature rises in the control box so that the temperature between the upper and lower units satisfies the environmental conditions. Also provide adequate clearances between the units or install a fan.
40mm(1.57inch) or more
40mm(1.57inch) or more
Leave 100mm(3.94inch) or more clearance or install fan for forced air cooling.
40mm(1.57inch) or more
40mm(1.57inch) or more
2 - 2
2. INSTALLATION AND START UP
(3) Others
When using heat generating equipment such as the regenerative brake option, install them with full consideration of heat generation so that MELSERVO-J2M is not affected. Install MELSERVO-J2M on a perpendicular wall in the correct vertical direction.

2.3 Keep out foreign materials

(1) When installing the unit in a control box, prevent drill chips and wire fragments from entering each
unit.
(2) Prevent oil, water, metallic dust, etc. from entering each unit through openings in the control box or a
fan installed on the ceiling.
(3) When installing the control box in a place where there are much toxic gas, dirt and dust, conduct an
air purge (force clean air into the control box from outside to make the internal pressure higher than the external pressure) to prevent such materials from entering the control box.

2.4 Cable stress

(1) The way of clamping the cable must be fully examined so that flexing stress and cable's own mass
stress are not applied to the cable connection.
(2) For use in any application where the servo motor moves, fix the cables (encoder, power supply, brake)
supplied with the servo motor, and flex the optional encoder cable or the power supply and brake wiring cables. Use the optional encoder cable within the flexing life range. Use the power supply and brake wiring cables within the flexing life of the cables.
(3) Avoid any probability that the cable sheath might be cut by sharp chips, rubbed by a machine corner
or stamped by workers or vehicles.
(4) For installation on a machine where the servo motor will move, the flexing radius should be made as
large as possible. Refer to section 11.4 for the flexing life.
2 - 3
2. INSTALLATION AND START UP

2.5 Mounting method

(1) Base unit
As shown below, mount the base unit on the wall of a control box or like with M5 screws.
Wall
(2) Interface unit/drive unit (MR-J2M-40DU or less)
The following example gives installation of the drive unit to the base unit. The same also applies to the interface unit.
Sectional view
Drive unit
Base unit
Catch
1) Hook the catch of the drive unit in the positioning hole of the base unit.
Sectional view
2)
Drive unit
Wall
1)
Positioning hole
Base unit
Wall
2) Using the catch hooked in the positioning hole as a support, push the drive unit in.
2 - 4
2. INSTALLATION AND START UP
Sectional view
3)
3)
3) Tighten the M4 screw supplied for the base unit to fasten the drive unit to the base unit.
POINT
Securely tighten the drive unit fixing screw.
Sectional view
Wall
Wall
(3) Drive unit (MR-J2M-70DU)
When using the MR-J2M-70DU, install it on two slots of the base unit. The slot number of this drive unit is that of the left hand side slot of the two occupied slots, when they are viewed from the front of the base unit.
2 - 5
2. INSTALLATION AND START UP

2.6 When switching power on for the first time

Before starting operation, check the following:
(1) Wiring
(a) Check that the control circuit power cable, main circuit power cable and servo motor power cable
are fabricated properly.
(b) Check that the control circuit power cable is connected to the CNP1B connector and the main
circuit power cable is connected to the CNP3 connector. (c) Check that the servo motor power cable is connected to the drive unit CNP2 connector. (d) The earth terminal of the servo motor is connected to the PE terminal of the drive unit. Also check
that the drive unit is screwed to the base unit securely. (e) When using the regenerative brake option, check that the cable using twisted wires is fabricated
properly and it is connected to the CNP1A connector properly. (f) 24VDC or higher voltages are not applied to the pins of connector CN3. (g) SD and SG of connector CN3 are not shorted. (h) The wiring cables are free from excessive force. (i) CN1A should be connected with the bus cable connected to the servo system controller or preceding
axis servo amplifier, and CN1B should connected with the bus cable connected to the subsequent
axis servo amplifier or with the termination connector MR-A-TM. (j) Check that the encoder cable and servo motor power cable connected to the drive unit are connected
to the same servo motor properly.
(2) Axis number
(a) Check that the axis numbers of the servo system controller match the axis number settings of the
corresponding drive units. (b) When changing the factory setting of any axis number (axis number
IFU parameter No. 11 to 18 values are set without fail. (c) Check that the encoder cable and motor power cable of the servo motor are wired to the drive unit
mounted to the slot as in the axis setting.
(3) Parameters
(a) Check that the drive unit parameters are set to correct values using the servo system controller
screen or MR Configurator (servo configuration software). (b) Check that the interface unit parameters are set to correct values using the interface unit display
or MR Configurator (servo configuration software).
(4) Environment
Signal cables and power cables are not shorted by wire offcuts, metallic dust or the like.
(5) Machine
(a) The screws in the servo motor installation part and shaft-to-machine connection are tight. (b) The servo motor and the machine connected with the servo motor can be operated.
slot number), check that the
2 - 6
2. INSTALLATION AND START UP

2.7 Start up

Do not operate the switches with wet hands. You may get an electric shock. Do not operate the controller with the front cover removed. High-voltage terminals
WARNING
CAUTION
Connect the servo motor with a machine after confirming that the servo motor operates properly alone.
and charging area exposed and you may get an electric shock.
During power-on or operation, do not open the front cover. You may get an electric
shock.
Before starting operation, check the parameters. Some machines may perform
unexpected operation.
Take safety measures, e.g. provide covers, to prevent accidental contact of hands and parts (cables, etc.) with the servo amplifier heat sink, regenerative brake 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.
(1) Power on
Switching on the main circuit power/control circuit power places the interface unit display in the scroll status as shown below.
In the absolute position detection system, first power-on results in the absolute position lost (A.25) alarm and the servo system cannot be switched on. This is not a failure and takes place due to the uncharged capacitor in the encoder. The alarm can be deactivated by keeping power on for a few minutes in the alarm status and then switching power off once and on again. Also in the absolute position detection system, if power is switched on at the servo motor speed of 500r/min or higher, position mismatch may occur due to external force or the like. Power must therefore be switched on when the servo motor is at a stop.
2 - 7
2. INSTALLATION AND START UP
(2) Parameter setting
Set the parameters according to the structure and specifications of the machine. Refer to Chapter 5 for the parameter definitions.
(3) Checking the axis number
On the interface unit display, check that the slot numbers and axis numbers are as set. Set the drive unit axis numbers in the IFU parameters No. 11 to 18.
For MR-J2M-BU4
First slot
Display
Axis number
Drive unit status
Slot number
Third slot
Second slot
Fourth slot
(4) Servo-on
Switch the servo-on in the following procedure:
1) Switch on main circuit/control circuit power supply.
2) The controller transmits the servo-on command. When placed in the servo-on status, MELSERVO-J2M is ready to operate and the servo motor is locked.
(5) Home position return
Always perform home position return before starting positioning operation.
(6) Stop
If any of the following situations occurs, MELSERVO-J2M suspends the running of the servo motor and brings it to a stop. When the servo motor is equipped with an electromagnetic brake, refer to Section 3.7.
Operation/command Stopping condition
Servo off command The base circuit is shut off and the servo motor coasts.
Servo system controller
MELSERVO-J2M
Forced stop command
Alarm occurrence
Forced stop (EM1) OFF
The base circuit is shut off and the dynamic brake operates to bring the servo motor to stop. The controller forced stop (A.E7) occurs. The base circuit is shut off and the dynamic brake operates to bring the servo motor to stop. The base circuit is shut off and the dynamic brake operates to bring the servo motor to stop. The servo forced stop (A.E6) occurs.
2 - 8
2. INSTALLATION AND START UP

2.8 Control axis selection

POINT
The control axis number set to the IFU parameter software should be the
same as the one set to the servo system controller.
Set the control axis numbers of the drive units in the IFU parameters No. 11 to 18. Setting the same control axis numbers in a single communication system will disable normal operation. Each control axis can be set independently of the slot number where the drive unit has been installed. The axis numbers of the drive units installed to the slots are factory-set as listed below.
IFU Parameter No. Name Initial Value (Note) Definition
11 1 slot axis number selection 0000 Axis 1 12 2 slot axis number selection 0001 Axis 2 13 3 slot axis number selection 0002 Axis 3 14 4 slot axis number selection 0003 Axis 4 15 5 slot axis number selection 0004 Axis 5 16 6 slot axis number selection 0005 Axis 6 17 7 slot axis number selection 0006 Axis 7 18 8 slot axis number selection 0007 Axis 8
Note. The axis number is represented as a set value 1.
2 - 9
2. INSTALLATION AND START UP
MEMO
2 - 10

3. SIGNALS AND WIRING

3. SIGNALS AND WIRING
Any person who is involved in wiring should be fully competent to do the work.
Before starting wiring, make sure that the voltage is safe in the tester more than 15 minutes after power-off. Otherwise, you may get an electric shock.
WARNING
Ground the base unit and the servo motor securely.
Do not attempt to wire each unit and servo motor until they have been installed. Otherwise, you may get an electric shock.
The cables should not be damaged, stressed excessively, loaded heavily, or pinched. Otherwise, you may get an electric shock.
Wire the equipment correctly and securely. Otherwise, the servo motor may misoperate, resulting in injury.
Connect cables to correct terminals to prevent a burst, fault, etc.
Ensure that polarity ( , ) is correct. Otherwise, a burst, damage, etc. may occur.
The surge absorbing diode installed to the DC relay designed for control output should be fitted in the specified direction. Otherwise, the signal is not output due to a fault, disabling the forced stop and other protective circuits.
Interface unit
Interface unit
CAUTION
VIN
SG
Control output
signal
Control output
VIN
SG
signal
RARA
Use a noise filter, etc. to minimize the influence of electromagnetic interference, which may be given to electronic equipment used near each unit.
Do not install a power capacitor, surge suppressor or radio noise filter (FR-BIF option) with the power line of the servo motor.
When using the regenerative brake resistor, switch power off with the alarm signal. Otherwise, a transistor fault or the like may overheat the regenerative brake resistor, causing a fire.
Do not modify the equipment.
POINT
CN1A, CN1B, CN2 and CN3 have the same shape. Wrong connection of
the connectors will lead to a failure. Connect them correctly.
3 - 1
3. SIGNALS AND WIRING

3.1 Connection example of control signal system

POINT
Refer to Section 3.4 for the connection of the power supply system and to
Section 3.5 for connection with the servo motor.
Interface unit
Servo system controller
(Note 9) MR Configurator
(servo configuration software)
(Note 3 4 7) Forced stop
(Note 10 13)
Cable clamp (Option)
(Note 4) Personal computer
24VDC
Bus cable (Option)
(Note 5) (Note 5)
CN3 CN3
8
VIN
EM1 20
SG 3
(Note 5) CN1A
(Note 5) CN3
Plate
(Note 5)
CN1B
13 MBR
4MO1
14 MO2
7MO3
11 LG
SD
(Note 11 12 13) Termination connector (MR-A-TM)
Base unit
(Note 2 6)
RA
A
A
A
2m(6.56ft) or less
Drive unit
CON3A
(Slot 1)
Drive unit
CON3B
(Slot 2)
10k
10k
10k
(Note 5)
CN2
(Note 5)
CN2
(Note 8) Analog monitor Max. 1mA Reading in both directions
15m(49.2ft) or less
(Note 14) Battery unit
MR-J2M-BT
MR-J2MBTCBL M
3 - 2
CON3H
(Slot 8)
CON4CON5
(Note 1)
Drive unit
(Note 5)
CN2
MR-J2M-D01
CN4A
CN4B
Encoder output pulses
Encoder output pulses
3. SIGNALS AND WIRING
Note 1. To prevent an electric shock, always connect the protective earth (PE) terminal (terminal marked ) of the base unit to the
protective earth (PE) of the control box.
2. Connect the diode in the correct direction. If it is connected reversely, the interface unit will be faulty and will not output signals,
disabling the forced stop and other protective circuits.
3. If the controller does not have a forced stop function, always install a forced stop switch (Normally closed).
4. When a personal computer is connected for use of the test operation mode, always use the maintenance junction card (MR-
J2CN3TM) to enable the use of the forced stop (EM1). (Refer to section 12.1.5)
5. CN1A, CN1B, CN2 and CN3 have the same shape. Wrong connection of the connectors will lead to a fault.
6. When using the electromagnetic brake interlock (MBR) or forced stop (EM1), always supply 24VDC between VIN and SG.
7. When starting operation, always connect the forced stop (EM1) and SG. (Normally closed contacts) By setting “0001” in DRU
parameter No.23 of the drive unit, the forced stop (EM1) can be made invalid.
8. When connecting the personal computer together with analog monitor 1
(Refer to Section 12.1.3.)
9. Use MRZJW3-SETUP151E.
10. Use the bus cable at the overall distance of 30m(98.4ft) or less. In addition, to improve noise immunity, it is recommended to use a
cable clamp and data line filters (three or four filters connected in series) near the connector outlet.
11. Up to eight axes (n
bus.
12. Always insert the termination connector (MR-A-TM) into CN1B of the interface unit located at the termination.
13. The bus cable used with the SSCNET depends on the preceding or subsequent controller or servo amplifier connected. Refer to
the following table and choose the bus cable.
1 to 8) may be connected. The MR-J2S- B/MR-J2-03B5 servo amplifier may be connected on the same
2 3 use the maintenance junction card (MR-J2CN3TM).
MR-J2M-P8B MR-J2S-
QD75M MR-J2HBUS M
Motion controller
MR-J2M-P8B MR-J2S- B
MR-J2-03B5
Maintenance junction card
14. When using an absolute position detection system, connect the battery unit (MR-J2M-BT).
Q172CPU(N) Q172J2BCBL M(-B)
Q173CPU(N) Q173J2B CBL M
A motion MR-J2HBUS
MR-J2HBUS M
B MR-J2-03B5
M-A
3 - 3
3. SIGNALS AND WIRING

3.2 I/O signals of interface unit

3.2.1 Connectors and signal arrangements

POINT
The pin configurations of the connectors are as viewed from the cable
connector wiring section.
CN1A CN1B
2
LG LG
RD
4
6
LG
8
EMG
10
BT
2
RD
4
6
8
10
2
RXD
4
MO1
6
EMG
1
LG LG
3
5
LG
7
9
BT
CN3
1
LG
3
SG
5
1
3
5
7
9
12
RD*
14
TD*TD
16
18
20
11
13
15
LG
17
EMG*
19
Interface unit
The connector frames are connected with the PE (earth) terminal inside the base unit.
12
RD*
14
TD*TD
16
18
20
12
TXD
14
MO2
16
11
13
15
LG
17
EMG*
19
11
LG
13
MBR
15
Connector
CN1A CN1B
CN3
Cable side connector
Model Maker
1. Soldering type Connector: 10120-3000VE Shell kit: 10320-52F0-008
2. Insulation displacement type Connector: 10120-6000EL Shell kit: 10320-3210-000
3 - 4
3M
8
VIN
10
7
MO3
9
17
18
19
20
EM1
3. SIGNALS AND WIRING

3.2.2 Signal explanations

For the I/O interfaces (symbols in I/O column in the table), refer to Section 3.2.3.
(1) Connector applications
Connector Name Function/Application
CN1A Connector for bus cable from preceding axis.
CN1B Connector for bus cable to next axis
CN3
Communication connector (I/O signal connector)
(2) I/O signals
(a) Input signal
Signal Symbol
Forced stop EM1
Connector Pin
No.
CN3
20
Disconnect EM1-SG to bring the servo motor to a forced stop state, in which the servo is switched off and the dynamic brake is operated. In the forced stop state, connect EM1-SG to reset that state.
Used for connection with the controller or preceding-axis servo amplifier. Used for connection with the next-axis servo amplifier or for connection of the termination connector. Used for connection with the personal computer. Serves as an I/O signal connector when the personal computer is not used.
Function/Application I/O Division
DI-1
(b) Output signals
Signal Symbol
Electromagnetic brake interlock
Analog monitor 1 MO1
Analog monitor 2 MO2
Analog monitor 3 MO3
MBR
Connector Pin
No.
CN3
13
CN3
4
CN3
14
CN3
7
MBR-SG are disconnected when a forced stop is made valid, an alarm occurs in the interface unit or drive unit, or the servo switches off. With IFU parameter No. 10, choose the axis number of the drive unit that will use this signal.
Used to output the data set in IFU parameter No.3 to across MO1-LG in terms of voltage. Resolution 10 bits Used to output the data set in IFU parameter No.4 to across MO2-LG in terms of voltage. Resolution 10 bits Used to output the data set in IFU parameter No.5 to across MO3-LG in terms of voltage. Resolution 10 bits
Function/Application I/O Division
(c) Power supply
VIN
SG
Connector Pin
No.
CN3
8
CN3
3
CN3
1
11
Driver power input terminal for digital interface. Used to input 24VDC (200mA or more) for input interface. Common terminal to VIN. Pins are connected internally. Separated from LG. Common terminal to MO1, MO2 and MO3.
Signal Symbol
Power input for digital interface Common for digital interface
Control common LG
Shield SD Plate Connect the external conductor of the shield cable.
Function/Application
DO-1
Analog
output
Analog
output
Analog
output
3 - 5
3. SIGNALS AND WIRING

3.2.3 Interfaces

(1) Common line
The following diagram shows the power supply and its common line.
Interface unit
INP .etc
DI-1
24VDC
VIN
SON .etc
SG
MBR
SD
MO1 MO2 MO3
LG
RA
Analog monitor
Base unit
Ground
Drive unit
Extension IO unit
SG
TXD
RXD
MR
MRR
LA.etc
LAR.etc
MBR
LG
SD
LG
SD
RS-232
Servo motor encoder
Servo motor
E
RA
M
Differential line driver output 35mA max.
24VDC
3 - 6
3. SIGNALS AND WIRING
(2) Detailed description of the interfaces
This section gives the details of the I/O signal interfaces (refer to I/O Division in the table) indicated in Sections 3.2.2. Refer to this section and connect the interfaces with the external equipment.
(a) Digital input interface DI-1
Give a signal with a relay or open collector transistor.
Interface unit
24VDC
For transistor
Approx. 5mA
TR
VCES 1.0V
100 A
I
CE0
200mA or more
Switch
VIN
EM1
SG
R: Approx. 4.7k
(b) Digital output interface DO-1
A lamp, relay or photocoupler can be driven. Provide a diode (D) for an inductive load, or an inrush current suppressing resister (R) for a lamp load. (Permissible current: 40mA or less, inrush current: 100mA or less)
1) Inductive load
Interface unit
VIN
Load
MBR
SG
Opposite polarity of diode will fail interface unit.
24VDC
10%
3 - 7
3. SIGNALS AND WIRING
2) Lamp load
(c) Analog output
Output voltage : Max. output current :0.5mA Resolution :10bit
4V
Interface unit
Interface unit
VIN
MBR
SG
R
24VDC
10%
MO1
(MO2 M03)
LG
SD
10k
1mA meter which deflects
A
unidirectionally or bidirectionally
3 - 8
3. SIGNALS AND WIRING

3.3 Signals and wiring for extension IO unit

3.3.1 Connection example

POINT
The pins without symbols can be assigned any devices using the MR
Configurator (servo configuration software).
MR-J2M-D01
VIN SG
(Note 2)
CN4A 11 36 12 37
1 2 3 4 5 6 7
8 26 27 28 29 30 31 32 33
Approx. 4.7k
Approx. 4.7k
(Note 3) 24VDC
(Note 4)
CN4B-11
(Note 2)
CN4A
10
34
35
(Note 2)
CN4A
13 38
50
25
49
24
48
23
47
22
46
21
45
20
44
19
43
18
42
17
41
16
40
15
39 LZ4
14 LZR4
plate
MBR1
MBR2
MBR3
MBR4
LG
LA1
LAR1
LB1
LBR1
LZ1
LZR1
LA2
LAR2
LB2
LBR2
LZ2
LZR2
LA3
LAR3
LB3
LBR3
LZ3
LZR3
LA4
LAR4
LB4
LBR4
SD
(Note 1)
RA19
RA2
RA3
RA4
Encoder A-phase pulse 1 (Differential line driver system)
Encoder B-phase pulse 1 (Differential line driver system)
Encoder Z-phase pulse 1 (Differential line driver system)
Encoder A-phase pulse 2 (Differential line driver system)
Encoder B-phase pulse 2 (Differential line driver system)
Encoder Z-phase pulse 2 (Differential line driver system)
Encoder A-phase pulse 3 (Differential line driver system)
Encoder B-phase pulse 3 (Differential line driver system)
Encoder Z-phase pulse 3 (Differential line driver system)
Encoder A-phase pulse 4 (Differential line driver system)
Encoder B-phase pulse 4 (Differential line driver system)
Encoder Z-phase pulse 4 (Differential line driver system)
3 - 9
3. SIGNALS AND WIRING
(Note 4)
SG
VIN
(Note 2) CN4B
1 2 3 4 5 6 7
8 26 27 28 29 30 31 32 33
12 37
11 36
Approx. 4.7k
Approx. 4.7k
CN4A-11
(Note 2)
CN4B
13 38
50 LA5
25 LAR5
49 LB5
24 LBR5
48 LZ5
23 LZR5
47 LA6
22 LAR6
46 LB6
21 LBR6
45 LZ6
20 LZR6
44 LA7
19 LAR7
43 LB7
18 LBR7
42 LZ7
17 LZR7
41 LA8
16 LAR8
40 LB8
15 LBR8
39 LZ8
14 LZR8
plate
LG
Encoder A-phase pulse 5 (Differential line driver system)
Encoder B-phase pulse 5 (Differential line driver system)
Encoder Z-phase pulse 5 (Differential line driver system)
Encoder A-phase pulse 6 (Differential line driver system)
Encoder B-phase pulse 6 (Differential line driver system)
Encoder Z-phase pulse 6 (Differential line driver system)
Encoder A-phase pulse 7 (Differential line driver system)
Encoder B-phase pulse 7 (Differential line driver system)
Encoder Z-phase pulse 7 (Differential line driver system)
Encoder A-phase pulse 8 (Differential line driver system)
Encoder B-phase pulse 8 (Differential line driver system)
Encoder Z-phase pulse 8 (Differential line driver system)
SD
(Note 2)
CN4B
9
10
34
35
MBR5
MBR6
MBR7
MBR8
(Note 1)
RA7
RA8
RA9
RA10
MR-J2M-D01
Note 1. Connect the diodes in the correct orientation. Opposite connection may cause the servo amplifier to be faulty and disable the signals from being output, making the forced stop and other protective circuits inoperative.
2. The signals having the same name are connected to the inside of the servo amplifier.
3. Always connect 24VDC (200mA).
4. These pins are unavailable when the MR-J2M-P8B is used as the interface unit.
3 - 10
3. SIGNALS AND WIRING

3.3.2 Connectors and signal configurations

(1) Signal configurations
POINT
The pin configurations of the connectors are as viewed from the cable
connector wiring section.
49
LB1
47
LA2
45
LZ2
43
LB3
41
LA4
39
LZ4
37
SG
35
MBR4
33
31
29
27
CN4A
50
LA1
48
LZ1
46
LB2
44
LA3
42
LZ3
40
LB4
38 LG 36
VIN
34
MBR3
32
30
28
26
24
LBR1
22
LAR2
20
LZR2
18
LBR3
16
LAR4
14
LZR4
12
SG
10
MBR2
8
6
4
2
25
LAR1
23
LZR1
21
LBR2
19
LAR3
17
LZR3
15
LBR4
13 LG 11
VIN
9
MBR1
7
5
3
1
49
LB5
47
LA6
45
LZ6
43
LB7
41
LA8
39
LZ8
37
SG
35
MBR8
33
31
29
27
CN4B
50
LA5
48
LZ5
46
LB6
44
LA7
42
LZ7
40
LB8
38
LG
36
VIN
34
MBR7
32
30
28
26
24
LBR5
22
LAR6
20
LZR6
18
LBR7
16
LAR8
14
LZR8
12
SG
10
MBR6
8
6
4
2
25
LAR5
23
LZR5
21
LBR6
19
LAR7
17
LZR7
15
LBR8
13
LG
11
VIN
9
MBR5
7
5
3
1
3 - 11
3. SIGNALS AND WIRING

3.3.3 Output signal explanations

For the IO interfaces (system in I/O column in the table), refer to section 3.2.3.
Signal Symbol
pulse 1 LAR1 CN4A-25
pulse 1 LBR1 CN4A-24 Encoder Z-phase
pulse 1
Encoder A-phase pulse 2
pulse 2 Encoder Z-phase pulse 2
Encoder A-phase pulse 3
Encoder B-phase pulse 3
Encoder Z-phase pulse 3
Encoder A-phase pulse 4
Encoder B-phase pulse 4
Encoder Z-phase pulse 4
Encoder A-phase pulse 5
Encoder B-phase pulse 5
Encoder Z-phase pulse 5
Encoder A-phase pulse 6
Encoder B-phase pulse 6
Encoder Z-phase pulse 6
Encoder A-phase pulse 7
Encoder B-phase pulse 7
Encoder Z-phase pulse 7
Encoder A-phase pulse 8
Encoder B-phase pulse 8
Encoder Z-phase pulse 8
LZR1 CN4A-23
LAR2 CN4A-22
LBR2 CN4A-21
LZR2 CN4A-20
LAR3 CN4A-19 Encoder A-phase pulse 1 LA1
LBR3 CN4A-18 Encoder Z-phase pulse 1 LZ1
LZR3 CN4A-17
LAR4 CN4A-16 Encoder B-phase pulse 2 LB2
LBR4 CN4A-15
LZR4 CN4A-14 Encoder A-phase pulse 3 LA3
LAR5 CN4B-25 Encoder Z-phase pulse 3 LZ3
LBR5 CN4B-24
LZR5 CN4B-23 Encoder B-phase pulse 4 LB4
LAR6 CN4B-22
LBR6 CN4B-21 Encoder A-phase pulse 5 LA5
LZR6 CN4B-20 Encoder Z-phase pulse 5 LZ5
LAR7 CN4B-19
LBR7 CN4B-18 Encoder B-phase pulse 6 LB6
LZR7 CN4B-17
LAR8 CN4B-16 Encoder A-phase pulse 7 LA7
LBR8 CN4B-15 Encoder Z-phase pulse 7 LZ7
LZR8 CN4B-14
Connector
pin No.
LA1 CN4A-50 DO-2Encoder A-phase
LB1 CN4A-49Encoder B-phase
LZ1 CN4A-48
LA2 CN4A-47
LB2 CN4A-46Encoder B-phase
LZ2 CN4A-45
LA3 CN4A-44
LB3 CN4A-43 Encoder B-phase pulse 1 LB1 LBR1
LZ3 CN4A-42 Encoder pulse outputs for slot 2
LA4 CN4A-41 Encoder A-phase pulse 2 LA2 LAR2
LB4 CN4A-40 Encoder Z-phase pulse 2 LZ2 LZR2
LZ4 CN4A-39
LA5 CN4B-50 Encoder B-phase pulse 3 LB3 LBR3
LB5 CN4B-49 Encoder pulse outputs for slot 4
LZ5 CN4B-48 Encoder A-phase pulse 4 LA4 LAR4
LA6 CN4B-47 Encoder Z-phase pulse 4 LZ4 LZR4
LB6 CN4B-46
LZ6 CN4B-45 Encoder B-phase pulse 5 LB5 LBR5
LA7 CN4B-44 Encoder pulse outputs for slot 6
LB7 CN4B-43 Encoder A-phase pulse 6 LA6 LAR6
LZ7 CN4B-42 Encoder Z-phase pulse 6 LZ6 LZR6
LA8 CN4B-41
LB8 CN4B-40 Encoder B-phase pulse 7 LB7 LBR7
LZ8 CN4B-39 Encoder pulse outputs for slot 8
As LA in the DRU parameter No. 38 of the corresponding slots are output in the differential line driver system. In CCW rotation of the servo motor, the encoder B-phase pulse lags the encoder A-phase pulse by a phase angle of The relationships between rotation direction and phase difference of the A­and B-phase pulses can be changed using DRU parameter No. 33. As LZ corresponding slots are output. One pulse is output per servo motor revolution. The same signals as OP driver system.
, LAR , LB and LBR , the pulses per servo motor revolution set
and LZR the zero-point signals of the encoders of the
Encoder pulse outputs for slot 1
Signal Symbol
Signal Symbol
Encoder pulse outputs for slot 3
Signal Symbol
Signal Symbol
Encoder pulse outputs for slot 5
Signal Symbol
Signal Symbol
Encoder pulse outputs for slot 7
Signal Symbol
Signal Symbol
Encoder A-phase pulse 8 LA8 LAR8 Encoder B-phase pulse 8 LB8 LBR8 Encoder Z-phase pulse 8 LZ8 LZR8
Function/Applications
are output in the differential line
LAR1
LZR1
LBR2
LAR3
LZR3
LBR4
LAR5
LZR5
LBR6
LAR7
LZR7
/2.
I/O
division
3 - 12
3. SIGNALS AND WIRING
Signal Symbol
Electromagnetic brake interlock 1 Electromagnetic brake interlock 2
Electromagnetic brake interlock 3
Electromagnetic brake interlock 4 Electromagnetic brake interlock 5 Electromagnetic brake interlock 6 Electromagnetic brake interlock 7 Electromagnetic brake interlock 8
Connector
pin No.
MBR1 CN4A-9
MBR2 CN4A-10
MBR3 CN4A-34
MBR4 CN4A-35
MBR5 CN4A-9
MBR6 CN4A-10
MBR7 CN4A-34
MBR8 CN4A-35
Function/Applications
MBR1: Electromagnetic brake interlock signal for axis 1 MBR2: Electromagnetic brake interlock signal for axis 2 MBR3: Electromagnetic brake interlock signal for axis 3 MBR4: Electromagnetic brake interlock signal for axis 4 MBR5: Electromagnetic brake interlock signal for axis 5 MBR6: Electromagnetic brake interlock signal for axis 6 MBR7: Electromagnetic brake interlock signal for axis 7 MBR8: Electromagnetic brake interlock signal for axis 8
MBR
-SG are disconnected when a forced stop is made valid, an alarm occurs in the interface unit or drive unit, or the servo switches off. At alarm occurrence, they are disconnected independently of the base circuit status.
I/O
division
DO-1
3 - 13
3. SIGNALS AND WIRING

3.4 Signals and wiring for base unit

When each unit has become faulty, switch power off on the base unit power side.
Continuous flow of a large current may cause a fire.
Switch power off at detection of an alarm. Otherwise, a regenerative brake
CAUTION

3.4.1 Connection example of power line circuit

Wire the power supply/main circuit as shown below so that power is shut off and the servo-on command turned off as soon as an alarm occurs, a servo forced stop is made valid, or a controller forced stop is made valid. A no-fuse breaker (NFB) must be used with the input cables of the power supply.
(1) For 3-phase 200 to 230VAC power supply
transistor fault or the like may overheat the regenerative brake resistor, causing a fire.
Fabricate the cables noting the shapes of the CNP1A housing (X type) and CNP1B
housing (Y type).
(Note) Alarm
RA1
Controller
forced stop
RA2
Forced
stop
OFF
ON
MC
MC
SK
MELSERVO-
NFB MC
Power supply 3-phase 200 to 230VAC
24VDC
Forced stop
Note. Configure up the power supply circuit which switches off the magnetic contactor after detection of alarm occurrence on the controller
side.
CNP3
1
L
2
L323
CNP1B
11
L212
CN3
VIN
EM1
1L
1L
SG
J2M
3 - 14
3. SIGNALS AND WIRING
r
(2) For 1-phase 200 to 230VAC power supply
(Note 1)
Alarm
RA1
Controlle forced stop RA2
Forced stop
OFF
ON
MC
MC
SK
(Note 2) Power supply 1-phase 200 to 230VAC
NFB MC
L
2
MELSERVO-J2M
CNP3
1L1
L323
CNP1B
11
1L
L212
24VDC
CN3
VIN
Forced stop
EM1
SG
Note 1. Configure up the power supply circuit which switches off the magnetic contactor after detection of alarm occurrence on the
controller side.
2. For 1-phase 200 to 230VAC, connect the power supply to L
1, L2 and leave L3 open.
3 - 15
3. SIGNALS AND WIRING

3.4.2 Connectors and signal configurations

POINT
The pin configurations of the connectors are as viewed from the cable
connector wiring section.
CNP1A (X type) (Y type)
1
N
2
P
3
C
CNP3
3
L
3
2
L
2
1
L1
Base unit
The connector frames are connected to the PE (earth) terminal of the base unit.
CNP1B
1
L
11
2
21
L
3
Connector
Housing: 1-178128-3 (X type)
CNP1A
CNP1B
CNP3
Note. This contact is not included in the option (MR-J2MCNM).
Contact: 917511-2 (max. sheath OD: 2.8[mm]) 353717-2 (max. sheath OD: Housing: 2-178128-3 (Y type) Contact: 917511-2 (max. sheath OD: 2.8[mm]) 353717-2 (max. sheath OD: Housing: 1-179958-3 Contact: 316041-2
Cable side connector
Model Maker
3.4[mm]) (Note)
3.4[mm]) (Note)
Tyco
Electronics
3 - 16
3. SIGNALS AND WIRING

3.4.3 Terminals

Refer to Section 10.2.1 for the layouts and signal configurations of the terminal blocks.
Connector Pin No. Code
Connection target
(Application)
Description
CNP3
CNP1B
CNP1A
1L
2L
3L
1L 2L 3 1N 2P 3C
1
Main circuit power
2
3
11
Control circuit power
21
Regenerative brake option
Protective earth (PE)
(1) When using a three-phase power supply Supply L power. (2) When using a signal-phase power supply Supply L power.
Supply L power.
Connect the regenerative brake option across P-C. Keep N open. (Refer to Section 12.1.1)
Connect this terminal to the protective earth (PE) terminals of the servo motor and control box for grounding.
1, L2 and L3 with three-phase, 200 to 230VAC, 50/60Hz
1 and L2 with signal-phase, 200 to 230VAC, 50/60Hz
11
and L
with single-phase, 200 to 230VAC, 50/60Hz
21
3 - 17
3. SIGNALS AND WIRING

3.4.4 Power-on sequence

(1) Power-on procedure
1) Always wire the power supply as shown in above Section 3.4.1 using the magnetic contactor with the main circuit power supply (3-phase 200V: L up an external sequence to switch off the magnetic contactor as soon as an alarm occurs.
2) Switch on the control circuit power supply L supply or before switching on the main circuit power supply. If the main circuit power supply is not on, the display shows the corresponding warning. However, by switching on the main circuit power supply, the warning disappears and MELSERVO-J2M will operate properly.
3) Each drive unit can accept the servo-on command within 4s the main circuit power supply is switched on. (Refer to paragraph (2) in this section.)
(2) Timing chart
SON accepted
(4s)
Main circuit Control circuit
Base circuit
Servo-on command (from controller)
power
ON
OFF
ON
OFF
ON
OFF
1, L2, L3, 1-phase 200 to 230VAC: L1, L2). Configure
11, L21 simultaneously with the main circuit power
10ms100ms
100ms
(3) Forced stop
CAUTION
Install an emergency stop circuit externally to ensure that operation can be
stopped and power shut off immediately.
If the controller does not have a forced stop function, make up a circuit which shuts off main circuit power as soon as EM1-SG are opened at a forced stop. To ensure safety, always install a forced stop switch across EM1-SG. By disconnecting EM1-SG, the dynamic brake is operated to bring the servo motor to a stop. At this time, the display shows the servo forced stop warning (A.E6). During ordinary operation, do not use forced stop (EM1) to alternate stop and run. The service life of each drive unit may be shortened.
Interface unit
24VDC
VIN
Forced stop
EM1
SG
3 - 18
3. SIGNALS AND WIRING

3.5 Connection of drive unit and servo motor

3.5.1 Connection instructions

Connect the wires to the correct phase terminals (U, V, W) of the drive unit and
CAUTION
The connection method differs according to the series and capacity of the servo motor and whether or not the servo motor has the electromagnetic brake. Perform wiring in accordance with this section.
(1) The protective earth of the servo motor joins to the base unit via the drive unit mounting screw.
Connect the protective earth terminal of the base unit to the protective earth of the control box to discharge electricity to the earth.
servo motor. Otherwise, the servo motor will operate improperly.
Do not connect AC power supply directly to the servo motor. Otherwise, a fault
may occur.
POINT
Do not apply the test lead bars or like of a tester directly to the pins of the
connectors supplied with the servo motor. Doing so will deform the pins, causing poor contact.
(2) The power supply for the electromagnetic brake should not be used as the 24VDC power supply for
interface. Always use the power supply for electromagnetic brake only.

3.5.2 Connection diagram

The following table lists wiring methods according to the servo motor types. Use the connection diagram which conforms to the servo motor used. For cables required for wiring, refer to Section 12.2.1. For encoder cable connection, refer to Section 12.1.2. For the signal layouts of the connectors, refer to Section
3.5.3. For the servo motor connector, refer to Chapter 3 of the Servo Motor Instruction Manual.
Servo motor Connection diagram
U (Red)
V (White)
W (Black)
(Green)
B1
B2
Servo motor
Motor
(Note 2) Electro­magnetic brake
Encoder
HC-KFS053 (B) to 73 (B) HC-MFS053 (B) to 73 (B) HC-UFS13 (B) to 73 (B)
Base unit Drive unit
(Note 1)
(Note 3)
CNP2
U
V
W
CN2
24VDC
EM1
To be shut off when servo­off or alarm occurrence
Encoder cable
Note 1. To prevent an electric shock, always connect the protective earth (PE) terminal of the base
unit to the protective earth (PE) of the control box.
2. This circuit applies to the servo motor with electromagnetic brake.
3. The protective earth of the servo motor is connected to the base unit via the drive unit
mounting screw.
3 - 19
3. SIGNALS AND WIRING

3.5.3 I/O terminals

(1) Drive unit
POINT
The pin configurations of the connectors are as viewed from the cable
connector wiring section.
CN2
19
P5
17
MRR
15
13
11
LG
20
P5
18
P5
16
MDR
14 4
12
LG
9
BAT
7
MR
5
3
1
LG
10
MD
LG
Drive unit
8
CNP2
6
24 V 13
UW
2
Connector
(2) Servo motor (HC-KFS HC-MFS HC-UFS3000r/min series)
CN2
CNP2
Cable side connector
Model Maker
1. Soldering type Connector: 10120-3000VE Shell kit: 10320-52F0-008
2. Insulation displacement type Connector: 10120-6000EL Shell kit: 10320-3210-000
Housing: 5557-04R-210 Terminal: 5556PBT3L
3M
Molex
Encoder cable 0.3m (0.98ft.) With connector 1-172169-9 (Tyco Electronics)
Power supply
a
connector 5557-04R-210
13
24
View b
Pin
Signal
1 2 3
4
U V W
(Earth)
Power supply lead 4-AWG19 0.3m (0.98ft.)
Power supply connector (Molex) Without electromagnetic brake 5557-04R-210 (receptacle) 5556PBTL (Female terminal)
b
With electromagnetic brake 5557-06R-210 (receptacle) 5556PBTL (Female terminal)
3 - 20
Power supply connector 5557-06R-210
1
4
25
36
View b
Encoder connector signal arrangement
123
MR
MRR BAT
456
MD
MDR
789
P5
LG SHD
View a
Signal
Pin
1
U
2
V
3
W
4
(Earth)
5
(Note)
B1
6
(Note)
B2
Note. Supply electromagnetic brake power (24VDC). There is no polarity.
3. SIGNALS AND WIRING

3.6 Alarm occurrence timing chart

When an alarm has occurred, remove its cause, make sure that the operation
signal is not being input, ensure safety, and reset the alarm before restarting
CAUTION
When an alarm occurs in each unit, the base circuit is shut off and the servo motor is coated to a stop. Switch off the main circuit power supply in the external sequence. To deactivate the alarm, power the control circuit off, then on or give the error reset or CPU reset command from the servo system controller. However, the alarm cannot be deactivated unless its cause is removed.
(Note)
Main circuit Control circuit
Base circuit
Dynamic brake
Servo-on command (from controller)
Alarm
Reset command (from controller)
Note. Switch off the main circuit power as soon as an alarm occurs.
power
operation.
As soon as an alarm occurs, make the Servo off status and interrupt the main
circuit power.
ON
OFF
ON
OFF
Valid
Invalid
ON
OFF
ON
OFF
NO
4s
Alarm occurs.
Brake operation
YES
50ms or more 30ms or more
Remove cause of trouble.
NO
Power off
Brake operation
YES
Power on
NO
(1) Overcurrent, overload 1 or overload 2
If operation is repeated by switching control circuit power off, then on to reset the overcurrent (A.32), overload 1 (A.50), overload 2 (A.51) or multi axis overload (A.53) alarm after its occurrence, without removing its cause, each unit and servo motor may become faulty due to temperature rise. Securely remove the cause of the alarm and also allow about 30 minutes for cooling before resuming operation.
(2) Regenerative alarm
If operation is repeated by switching control circuit power off, then on to reset the regenerative (A.30) alarm after its occurrence, the external regenerative brake resistor will generate heat, resulting in an accident.
(3) Instantaneous power failure
Undervoltage (A. 10) occurs when the input power is in either of the following statuses.
A power failure of the control circuit power supply continues for 30ms or longer and the control circuit is not completely off. The bus voltage dropped to 200VDC or less.
3 - 21
3. SIGNALS AND WIRING

3.7 Servo motor with electromagnetic brake

Configure the electromagnetic brake operation circuit so that it is activated not only
by the interface unit signals but also by an external forced stop (EM1).
Contacts must be open when servo-off, when an alarm occurrence and when an electromagnetic brake interlock (MBR).
CAUTION
The electromagnetic brake is provided for holding purpose and must not be used
for ordinary braking.
Before performing the operation, be sure to confirm that the electromagnetic brake
operates properly.
POINT
Refer to the Servo Motor Instruction Manual for specifications such as the
power supply capacity and operation delay time of the electromagnetic brake.
Servo motor
Electromagnetic brake
Circuit must be opened during forced stop (EM1).
EM1RA
24VDC
Note the following when the servo motor equipped with electromagnetic brake is used.
1) Do not share the 24VDC interface power supply between the interface and electromagnetic brake. Always use the power supply designed exclusively for the electromagnetic brake.
2) The brake will operate when the power (24VDC) switches off.
3) Switch off the servo-on command after the servo motor has stopped.
4) Using the IFU parameter No.10, select the axis number of the drive unit which uses the electromagnetic brake interlock (MBR).
(1) Connection diagram
Interface unit
or
extension IO unit
SG
MBR
RA
24VDC
24VDC
RA
Forced
stop
Servo motor
B1
B2
(2) Setting
In DRU parameter No.21 (electromagnetic brake sequence output), set the delay time (Tb) from electromagnetic brake operation to base circuit shut-off at a servo off time as in the timing chart in (4) in this section.
3 - 22
3. SIGNALS AND WIRING
(3) Electromagnetic brake interlock signal
There are the following electromagnetic brake interlock signals. The MR-J2M-D01 is required to use MBR1 to MBR8. Load the MR-J2M-D01 to the option slot of the base unit.
Signal Symbol Connector Pin No. Description
Electromagnetic brake interlock Electromagnetic brake interlock 1 Electromagnetic brake interlock 2 Electromagnetic brake interlock 3 Electromagnetic brake interlock 4 Electromagnetic brake interlock 5 Electromagnetic brake interlock 6 Electromagnetic brake interlock 7 Electromagnetic brake interlock 8
MBR CN3-13
MBR1 CN4A-9 Electromagnetic brake interlock signal for axis 1
MBR2 CN4A-10 Electromagnetic brake interlock signal for axis 2
MBR3 CN4A-34 Electromagnetic brake interlock signal for axis 3
MBR4 CN4A-35 Electromagnetic brake interlock signal for axis 4
MBR5 CN4B-9 Electromagnetic brake interlock signal for axis 5
MBR6 CN4B-10 Electromagnetic brake interlock signal for axis 6
MBR7 CN4B-34 Electromagnetic brake interlock signal for axis 7
MBR8 CN4B-35 Electromagnetic brake interlock signal for axis 8
Electromagnetic brake interlock signal for all axes or the axis selected in parameter No. 10
(a) Electromagnetic brake interlock (MBR)
This signal is output from the CN3 connector of the interface unit. This signal allows you to select the axis number of the drive unit to be used with IFU parameter No. 10.
Electromagnetic brake interlock output axis number selection Choose the axis number of the drive unit that will use electromagnetic brake interlock output (MBR).
Setting
0 1 2 3 4 5 6 7 8
Selected Axis
All connected axes
Axis 1 Axis 2 Axis 3 Axis 4 Axis 5 Axis 6 Axis 7 Axis 8
1) When selecting the corresponding axis number
The timing chart of the corresponding axis is the same as in (4) of this section.
2) When using all axes
The timing chart in (4)(a) of this section changes as described below. When the base circuits of all connected axes turn on, electromagnetic brake interlock (MBR) turns on. If the servo on command timings differ between the axes, the axis whose servo on occurred first will result in overload alarm. Hence, the servo on command should be given to all axes at the same timing. The others are as shown in (4) of this section.
3 - 23
3. SIGNALS AND WIRING
r
(b) Electromagnetic brake interlock 1 to 8 (MBR1 to MBR8)
By adding an extension IO unit, you can use the electromagnetic brake interlock (MBR) for each axis. The timing chart is as shown in (4) of this section.
(4) Timing charts
(a) Servo-on command (from controller) ON/OFF
Delay time (Tb) [ms] after the servo-on is switched off, the servo lock is released and the servo motor coasts. If the electromagnetic brake is made valid in the servo lock status, the brake life may be shorter. Therefore, when using the electromagnetic brake in a vertical lift application or the like, set Tb to about the same as the electromagnetic brake operation delay time to prevent a drop.
Servo motor speed
0 r/min
Coasting
Base circuit
Electromagnetic brake interlock (MBR MBR1 to MBR8)
Servo-on command (from controller)
ON
OFF
Invalid(ON)
Valid(OFF)
ON
OFF
(100ms)
(120ms)
Tb
(b) Forced stop command (from controller) or forced stop (EM1) ON/OFF
Dynamic brake
Dynamic brake
Servo motor speed
Base circuit
Electromagnetic brake interlock (MBR MBR1 to MBR8) Forced stop
command(from controller) or
ced stop (EM1)
Fo
ON
(10ms)
OFF
Invalid (ON)
Valid (OFF)
Invalid (ON)
Valid (OFF)
Electromagnetic brake
Electromagnetic brake
Electromagnetic brake operation delay time
(180ms)
(180ms)
Electromagnetic brake operation delay time
Electromagnetic brake release
3 - 24
3. SIGNALS AND WIRING
(c) Alarm occurrence
Servo motor speed
Base circuit
Electromagnetic brake interlock (MBR MBR1 to MBR8)
Trouble (ALM)
ON
OFF
Invalid(ON)
Valid(OFF)
No(ON)
Yes(OFF)
(d) Both main and control circuit power supplies off
Servo motor speed
Base circuit
(10ms)
(Note)15 to 100ms
ON
OFF
Dynamic brake
Dynamic brake Electromagnetic brake
Electromagnetic brake
Electromagnetic brake operation delay time
Dynamic brake
(10ms)
Dynamic brake
Electromagnetic brake
Electromagnetic brake
Electromagnetic brake interlock (MBR MBR1 to MBR8)
Trouble (ALM)
Main circuit Control circuit
Note. Changes with the operating status.
power
Invalid(ON)
Valid(OFF)
No(ON)
Yes(OFF)
ON
OFF
Electromagnetic brake operation delay time
(e) Only main circuit power supply off (control circuit power supply remains on)
Dynamic brake
Dynamic brake
Servo motor speed
Base circuit
Electromagnetic brake interlock (MBR MBR1 to MBR8)
Trouble (ALM)
(10ms)
(Note 1)15ms or more
ON
OFF
Invalid(ON)
Valid(OFF)
No(ON)
Yes(OFF)
Electromagnetic brake
Electromagnetic brake
Electromagnetic brake operation delay time
(Note 2)
Main circuit power supply
Note 1. Changes with the operating status.
2. When the main circuit power supply is off in a motor stop status, the main circuit off warning (A.E9) occurs and the trouble (ALM_ ) does not turn off.
ON
OFF
3 - 25
3. SIGNALS AND WIRING

3.8 Grounding

Ground the base unit and servo motor securely.
WARNING
The base unit switches the power transistor on-off to supply power to the servo motor. Depending on the wiring and ground cablerouting, MELSERVO-J2M may be affected by the switching noise (due to di/dt and dv/dt) of the transistor. To prevent such a fault, refer to the following diagram and always ground. To conform to the EMC Directive, refer to the EMC Installation Guidelines (IB(NA)67310).
Power supply 3-phase 200 to 230VAC (Note 4) 1-phase 200 to 230VAC
NFB
To prevent an electric shock, always connect the protective earth (PE) terminal of
the base unit with the protective earth (PE) of the control box.
Control box
Base unit
FR-BAL
MC
L1
L2
L3
Line filter
L
L21
11
(Note 2)
Drive unit
CNP2
Drive unit
CN2
U
V
W
CN2
Servo motor
Encoder
U
V
W
(Earth)
(Note 3)
Servo motor
M
(Note 2)
Interface unit
(Note 1)
Protective earth(PE)
CNP2
CN1A
Servo system
Encoder
U
V
W
controller
U
V
W
(Earth)
M
(Note 3)
Note 1. To reduce the influence of external noise, we recommend you to ground the bus cable near the controller using a cable clamping fixture or to connect three or four data line filters in series.
2. The mounting screw of the drive unit is also used for PE connection of the servo motor.
3. Ensure to connect it to PE terminal of the drive unit. Do not connect it directly to the protective earth of the control panel.
4. For 1-phase 230VAC, connect the power supply to L
1 L2 and leave L3 open.
3 - 26
3. SIGNALS AND WIRING

3.9 Instructions for the 3M connector

When fabricating an encoder cable or the like, securely connect the shielded external conductor of the cable to the ground plate as shown in this section and fix it to the connector shell.
External conductor Sheath
Strip the sheath.
Ground plate
External conductor
SheathCore
Pull back the external conductor to cover the sheath
Screw
Cable
Screw
3 - 27
3. SIGNALS AND WIRING
MEMO
3 - 28

4. OPERATION AND DISPLAY

4. OPERATION AND DISPLAY
On the interface unit display (5-digit, seven-segment display), check the status of communication with the servo system controller at power-on, check the axis number, and diagnose a fault at occurrence of an alarm.

4.1 Normal indication

When powered on, the MELSERVO-J2M is placed in the automatic scroll mode in which the statuses of the drive units installed on the base unit appear at intervals of 2 seconds in due order. At this time, open slot numbers do not appear. In the initial status, the indication is in the automatic scroll mode. Pressing the "SET" button switches the automatic scroll mode to the fixed mode. In the fixed mode, pressing the "UP" or "DOWN" button displays the status of the subsequent-axis drive unit. If an alarm/warning occurs in the interface unit, the alarm/warning number of the interface unit appears. (Refer to Section 4.1.2)
Automatic scroll
or
button
UP DOWN
# ## ## ## ##
DRU status indication
(Slot 1)
Pressing the "MODE" button in the automatic scroll mode for more than 2s switches to the interface­related display mode in which the data of the interface unit appears. (Refer to Section 4.2)
DRU status indication
(Slot 2)
DRU status indication
(Slot 3)
DRU status indication
(Slot 7)
DRU status indication
(Slot 8)
4 - 1
4. OPERATION AND DISPLAY

4.1.1 Display sequence

@ in the diagram denotes the slot number of the base unit and # the axis number of the drive unit.
MELSERVO-J2M power ON
Servo system controller power ON
When alarm occurs, alarm code appears.
@#
Waiting for servo system controller power to switch ON
@# @#
Initial data communication with servo system controller
@#
@#
Ready ON
@#
Servo ON
@#
Ordinary operation
Ready OFF/servo OFF
Ready ON/servo OFF
Ready ON/servo ON
At interface unit alarm occurrence
Interface unit current alarm indication
**
2s later
To drive unit status indication
Servo system controller power OFF
@#
Servo system controller power ON
4 - 2
4. OPERATION AND DISPLAY
(1) Indication list
(Note 1) Indication Status Description
@ Ab# Initializing
@ AA# Initializing
@ AC# Initializing
@ Ad# Initializing The initial parameters from the servo system controller were received. @ AE# Initialize completion Initial data communication with the servo system controller was completed. @ b# Ready OFF The ready off signal from the servo system controller was received. @ C# Servo OFF The ready off signal from the servo system controller was received. @ d# Servo ON The ready off signal from the servo system controller was received.
(Note 2) @A**# Alarm Warning The alarm No./warning No. that occurred is displayed. (Refer to Section 9.1.)
@T b#. @T c#. @T d#.
Note 1. @ denotes the slot number of the base unit and # the axis number of the drive unit.
2. ** indicates the warning/alarm No.
(Note 3) Test operation mode
MELSERVO-J2M was switched on when power to the servo system controller is off.
Power to the servo system controller was switched off during power-on of MELSERVO-J2M. The axis No. set to the servo system controller does not match the axis No. set with IFU parameter No.11 to No.18. MELSERVO-J2M fault occurred or an error took place in communication with the servo system controller. In this case, the indication changes:
"AC" "Ad" "Ab"
"Ab"
The servo system controller is faulty. Communication started between the servo system controller and MELSERVO­J2M.
It is a state of the test operation mode with the MR Configurator (servo configuration software). JOG operation, positioning operation, programmed operation, DO forced output, motor-less operation.

4.1.2 If alarm/warning occurs

(1) If alarm/warning occurs in drive unit
An alarm/warning which occurred in the drive unit is represented by the following indication. The following indication example assumes that an encoder error (A.16) occurred in the drive unit of axis 3 installed on slot 1. During alarm occurrence, the decimal points in the fifth and second digits flicker.
1. A 1 36.
Axis number
Alarm/warning number
Denotes alarm/warning indication.
Slot number
(2) If alarm/warning occurs in interface unit
An alarm/warning which occurred in the interface unit is represented by the following indication. The following indication example assumes that interface unit undervoltage (A.10) occurred. During alarm occurrence, the decimal points in the fifth and second digits flicker.
F. A 1 0.
Alarm/warning number
Denotes alarm/warning indication.
Denotes interface unit.
4 - 3
4. OPERATION AND DISPLAY

4.2 Status display mode of interface unit

4.2.1 Display flowchart

Use the display (5-digit, 7-segment LED) on the front panel of the interface unit for status display, parameter setting, etc. Set the parameters before operation, diagnose an alarm, confirm external sequences, and/or confirm the operation status. The unit is in the automatic scroll mode at power-on. Press the "MODE" button for more than 2s to change the display before starting operation. Press the
"MODE" "UP" or "DOWN" button once to move to the next screen.
button
MODE
Regenerative load ratio [%]
Bus voltage [V]
Peak bus voltage [V]
Diagnosis Basic IFU parameters
External I/O signal display
Output signal forced output
Software version low
Software version high
Second alarm in past
Fourth alarm in past
AlarmStatus display
Current alarm
Last alarm
Third alarm in past
Fifth alarm in past
Sixth alarm in past
IFU parameter No. 0
IFU parameter No. 1
IFU parameter No. 18
IFU parameter No. 19
UP
DOWN
Parameter error No.
4 - 4
4. OPERATION AND DISPLAY

4.2.2 Status display of interface unit

MELSERVO-J2M status during operation is shown on the 5-digit, 7-segment LED display. Press the "UP" or "DOWN" button to change display data as desired. When the required data is selected, the corresponding symbol appears. Press the "SET" button to display its data.
(1) Display examples
The following table lists display examples:
Item Status
Regenerative load ratio 60%
Bus voltage 270V
Displayed data
Interface unit display
Peak bus voltage 350V
(2) Status display list
The following table lists the servo statuses that may be shown: Refer to Appendix 1 for the measurement point.
Name Symbol Unit Description
Regenerative load ratio
Bus voltage Pn V The voltage (across P-N) of the main circuit converter is displayed. 0 to 450
Peak bus voltage PnP V
L%
The ratio of regenerative power to permissible regenerative power is displayed in %.
Shows the maximum voltage of the main circuit converter (across P-N). The maximum value during past 15s is displayed. If there is a difference of 40V or more between the bus voltage and peak bus voltage during normal operation, use the regenerative brake option.
Display
range
0 to 100
0 to 450
4 - 5
4. OPERATION AND DISPLAY

4.2.3 Diagnostic mode of interface unit

Name Display Description
External I/O signal display
Shows the ON/OFF states of the external I/O signals and whether a forced stop command from the servo system controller
1)2)
is present or not.
1) Forced stop command from servo system controller Absent: On Present: Off
2) Forced stop (EM1) ON: On OFF: Off
3)
3) Electromagnetic brake interlock (MBR) ON: On OFF: Off
Output signal forced output
Software version low Indicates the version of the software.
Software version high Indicates the system number of the software.
The digital output signal can be forced on/off. For more information, refer to section 4.2.6.
4 - 6
4. OPERATION AND DISPLAY

4.2.4 Alarm mode of interface unit

The current alarm, past alarm history and parameter error are displayed. The lower 2 digits on the display indicate the alarm number that has occurred or the parameter number in error. Display examples are shown below.
Name Display Description
Indicates no occurrence of an alarm.
Current alarm
Indicates the occurrence of overvoltage (A.33). Flickers at occurrence of the alarm.
Indicates that the last alarm is Multiple axis overload (A.53).
Indicates that the second alarm in the past is overvoltage (A.33).
Indicates that the third alarm in the past is undervoltage (A.10).
Alarm history
Indicates that the fourth alarm in the past is overspeed (A.31).
Indicates that there is no fifth alarm in the past.
Indicates that there is no sixth alarm in the past.
Indicates no occurrence of parameter error.
Parameter error No.
Indicates that the data of parameter No. 1 is faulty.
Functions at occurrence of an alarm (1) Any mode screen displays the current alarm. (2) Even during alarm occurrence, the other screen can be viewed by pressing the button in the operation
area. At this time, the decimal point in the fourth digit remains flickering.
(3) For any alarm, remove its cause and clear it in any of the following:
(a) Switch power OFF, then ON. (b) Press the "SET" button on the current alarm screen.
(c) Turn on the alarm reset (RES) methods (for clearable alarms, refer to Section 9.1). (4) Use IFU parameter No. 16 to clear the alarm history. (5) Pressing "SET" button on the alarm history display screen for 2s or longer shows the following detailed
information display screen. Note that this is provided for maintenance by the manufacturer.
(6) Press "UP" or "DOWN" button to move to the next history.
4 - 7
4. OPERATION AND DISPLAY
/

4.2.5 Interface unit parameter mode

The parameters whose abbreviations are marked* are made valid by changing the setting and then switching power off once and switching it on again. Refer to Section 5.2.2.
The following example shows the operation procedure performed after power-on to change the serial communication baudrate (IFU parameter No. 0) to 38400bps. Using the "MODE" button, show the basic parameter screen.
The parameter number is displayed.
Press or to change the number.
UP DOWN
Press SET twice.
The set value of the specified parameter number flickers.
Press UP once.
During flickering, the set value can be changed.
Use or .
UP DOWN
( 2: Baudrate 38400bps)
Press SET to enter.
To shift to the next parameter, press the
UP DOWN
button. When changing the parameter No. 0 setting, change its set value, then switch power off once and switch it on again to make the new value valid.
4 - 8
4. OPERATION AND DISPLAY

4.2.6 Output signal (DO) forced output

POINT
This function is available during test operation.
The output signal can be forced on/off independently of the servo status. This function is used for output signal wiring check, etc. This operation must be performed in the servo off state. Call the display screen shown after power-on. Using the "MODE" button, show the diagnostic screen.
Press UP once.
Press SET for more than 2s.
Turns on/off the signal under the lit LED.
Always lit.
Indicates whether the output signal is ON or OFF. The signals are the same as the output signals of
CN3
13
the external I/O signal display. (On: ON, Off: OFF)
Pressing MODE once moves the lit LED to the left.
Press UP once.
The CN3-13 pin turns on. (There will be continuity across CN3-13 pin-SG.)
Press DOWN once.
The CN3-13 pin turns off.
Press SET for more than 2s.
4 - 9
4. OPERATION AND DISPLAY
MEMO
4 - 10

5. PARAMETERS

5. PARAMETERS
CAUTION
Never adjust or change the parameter values extremely as it will make operation
instable.
POINT
When MELSERVO-J2M is connected with the servo system controller, the
parameters are set to the values of the servo system controller. Switching power off, then on makes the values set on the MR Configurator (servo configuration software) invalid and the servo system controller values valid.
In the maker setting parameters, do not set any values other than the
initial values.
Setting may not be made to some parameters and ranges depending on the
model or version of the servo system controller. For details, refer to the servo system controller user's manual.
The IFU and DRU parameters can be set in the following methods.
Parameters Setting Method
IFU parameters
DRU parameters
Pushbuttons in interface unit operation section MR Configurator (servo configuration software) MR Configurator (servo configuration software) Servo system controller

5.1 Drive unit

5.1.1 Parameter write inhibit

POINT
When setting the parameter values from the servo system controller, the
DRU parameter No. 40 setting need not be changed.
In this drive unit, the parameters are classified into the basic DRU parameters (No. 1 to 11), adjustment DRU parameters (No. 12 to 26) and expansion DRU parameters (No. 27 to 40) according to their safety aspects and frequencies of use. The values of the basic DRU parameters may be set/changed by the customer, but those of the adjustment and expansion DRU parameters cannot. When in-depth adjustment such as gain adjustment is required, change the DRU parameter No. 40 value to make all parameters accessible. DRU parameter No. 40 is made valid by switching power off, then on after setting its value. The following table indicates the parameters which are enabled for reference and write by DRU parameter No. 40 setting.
Setting Operation
0000(initial value)
000A
000C
000E
100E
Operation from controller
Reference
Write
Reference
Write
Reference DRU parameter No.1 to 40
Write
Reference
Write
Reference DRU parameter No.1 to 40
Write
DRU parameter No.1 to 39
DRU parameter No.1 to 39
DRU parameter No.1 to 39
DRU parameter No.1 to 39
DRU parameter No.1 to 39
Operation from MR Configurator
(servo configuration software)
DRU parameter No.1 to 11 40
DRU parameter No.40
DRU parameter No.1 to 11
DRU parameter No.1 to 40
DRU parameter No.40
40
5 - 1
5. PARAMETERS

5.1.2 Lists

POINT
For any DRU parameter whose symbol is preceded by*, set the DRU
parameter value and switch power off once, then switch it on again to make that parameter setting valid. The parameter is set when communication between the servo system controller and servo amplifier is established (b* is displayed). After that, power the servo amplifier off once and then on again.
(1) Item list
Classifi-
cation
Note. Factory settings of the servo amplifier. Connecting it with the servo system controller and switching power on changes them to the
No. Symbol Name
1 *AMS Amplifier setting 0000 2 *REG Regenerative brake resistor 0000 3 0080 4 000 5 6 *FBP Feedback pulse number 0 7 *POL Rotation direction selection 0 8 ATU Auto tuning 0001
Basic parameters
9 RSP Servo response 0005 10 TLP Forward rotation torque limit 300 % 11 TLN Reverse rotation torque limit 300 % 12 GD2 Ratio of load inertia to servo motor inertia (load inertia ratio) 7.0 times 13 PG1 Position control gain 1 35 rad/s 14 VG1 Speed control gain 1 177 rad/s 15 PG2 Position control gain 2 35 rad/s 16 VG2 Speed control gain 2 817 rad/s 17 VIC Speed integral compensation 48 ms 18 NCH Machine resonance suppression filter 1 (Notch filter) 0000 19 FFC Feed forward gain 0 % 20 INP In-position range 100 pulse 21 MBR Electromagnetic brake sequence output 0 ms 22 For manufacturer setting 0001
Adjustment parameters
23 *OP1 Optional function 1 0000 24 *OP2 Optional function 2 0000 25 LPF Low-pass filter/adaptive vibration suppression control 0000 26 0 27 0 28 0 29 30 ZSP Zero speed 50 r/min 31 ERZ Error excessive alarm level 80 0.1rev 32 OP5 Optional function 5 0000 33 *OP6 Optional function 6 0000 34 VPI PI-PID control switch-over position droop 0 pulse 35 For manufacturer setting 0 36 VDC Speed differential compensation 980
Expansion parameters
37 For manufacturer setting 0010 38 *ENR Encoder output pulses 4000 pulse/rev 39 For manufacturer setting 0 40 *BLK DRU parameter write inhibit 0000
settings of the servo system controller.
For automatic setting by servo system controller
For manufacturer setting
(Note)
Initial
Value
1
0001
Unit
Customer
setting
5 - 2
5. PARAMETERS
Classifi-
cation
Note. Depends on the DRU parameter No. 49 setting.
No. Symbol Name
41 500 42 0000 43 0111 44 20 45 50 46 0 47 0 48 49 *CDP Gain changing selection 0000 50 CDS Gain changing condition 10 (Note) 51 CDT Gain changing time constant 1 ms 52 GD2B Ratio of load inertia moment to Servo motor inertia moment 2 7.0 times 53 PG2B Position control gain 2 changing ratio 100 % 54 VG2B Speed control gain 2 changing ratio 100 % 55 VICB Speed integral compensation changing ratio 100 % 56 0000 57 0000 58 0000 59 60 *OPC Optional function C 0000 61 NH2 Machine resonance suppression filter 2 0000 62 0000
Expansion DRU parameters 2
63 400 64 100 65 1 66 1 67 0 68 0 69 0 70 0 71 0 72 0 73 0 74 0 75
For manufacturer setting
For manufacturer setting
For manufacturer setting
(Note)
Initial
Value
0
0000
0
Unit
Custome
r setting
5 - 3
5. PARAMETERS
)
(2) Details list
Classifi-
cation
No. Symbol Name and Function
1 *AMS Amplifier setting
Used to select the absolute position detection.
0 00
Absolute position detection selection 0: Invalid (Used in incremental system. 1: Valid (Used in absolute position detection system.)
Initial
Value
0000 Refer to
Unit
Setting
Range
name and function column.
2 *REG 0000 Refer to
Regenerative brake resistor Used to select the regenerative brake option used. The values set to the drive units installed on the base unit should all be the same.
0 0
Regenerative selection brake option (The built-in regenerative brake resister is used.) 00: Not used 06: MR-RB34 07: MR-RB54 10: MR-RB032 11: MR-RB14
POINT
Wrong setting may cause the regenerative brake option to burn. If the regenerative brake option selected is not for use with the drive unit, parameter error (A.37) occurs.
Basic DRU parameters
3 0080 4 0000 5 6*FBP 0 Refer to
For automatic setting by servo system controller Automatically set from the servo system controller
1 Feedback pulse number Set the number of pulses per revolution in the controller side command unit. Information on the motor such as the feedback pulse value, present position, droop pulses and within-one-revolution position are derived from the values converted into the number of pulses set here.
Setting Number of feedback pulses
0 16384 1 8192 6 32768 7 131072
255 Depending on the number of motor resolution pulses.
name and function column.
name and function column.
POINT
If the number of pulses set exceeds the actual motor resolution, the motor resolution is set automatically.
5 - 4
5. PARAMETERS
Classifi-
cation
Basic DRU parameters
No. Symbol Name and Function
7 *POL Rotation direction selection
Used to select the rotation direction of the servo motor. 0: Forward rotation (CCW) with the increase of the positioning
address.
1: Reverse rotation (CW) with the increase of the positioning
address.
CCW
CW
8 ATU Auto tuning
Used to select the gain adjustment mode of auto tuning.
0 00
Gain adjustment mode selection (For details, refer to Section 6.1.1.)
Set
Gain adjustment
value
0
mode
Interpolation mode
Description
Fixes position control gain 1 (parameter No. 13).
Initial
Value
0 Refer to
0001 Refer to
Unit
Setting
Range
name and function column.
name and function column.
1
Auto tuning mode 1 Auto tuning mode 2
3
4Simple manual
Manual mode 1
2
Manual mode 2
Ordinary auto tuning. Fixes the load inertia
moment ratio set in parameter No. 12. Response level setting can be changed.
adjustment.
Manual adjustment of all gains.
5 - 5
5. PARAMETERS
Classifi-
cation
Basic DRU parameters
No. Symbol Name and Function
9 RSP Servo response
Used to select the response level of auto tuning.
0 00
Auto tuning response level selection
Set
Response
value
1 2 3 4 5 6 7 8 9 A B
C D E F300Hz
If the machine hunts or generates large gear sound, decrease the set value. To improve performance, e.g. shorten the settling time, increase the set value.
level
Low
response
Middle
response
High
response
Machine resonance frequency guideline
15Hz 20Hz 25Hz 30Hz 35Hz 45Hz 55Hz 70Hz
85Hz 105Hz 130Hz 160Hz 200Hz 240Hz
Initial
Value
0005 Refer to
Unit
Setting
Range
name and function column.
10 TLP Forward rotation torque limit
Assume that the rated torque is 100[%]. Used to limit the torque in the forward rotation driving mode and reverse rotation regenerative mode. In other than the test operation mode on the MR Configurator (servo configuration software), the torque limit value on the servo system controller side is made valid.
11 TLN Reverse rotation torque limit
Assume that the rated torque is 100[%]. Used to limit the torque in the forward rotation driving mode and forward rotation regenerative mode. In other than the test operation mode on the MR Configurator (servo configuration software), the torque limit value on the servo system controller side is made valid.
12 GD2
13 PG1 Position loop gain 1
Adjustment DRU parameters
Ratio of load inertia moment to servo motor inertia moment Used to set the ratio of the load inertia moment to the servo motor shaft inertia moment. When auto tuning mode 1 and interpolation mode is selected, the result of auto tuning is automatically used. (Refer to section 6.1.1) In this case, it varies between 0 and 1000.
Used to set the gain of position loop 1. Increase the gain to improve trackability performance in response to the position command. When auto turning mode 1,2 is selected, the result of auto turning is automatically used.
300 % 0
to
500
300 % 0
to
500
7.0 times 0.0 to
300.0
35 rad/s 4
to
2000
5 - 6
5. PARAMETERS
Classifi-
cation
No. Symbol Name and Function
14 VG1 Speed loop gain 1
Normally this parameter setting need not be changed. Higher setting increases the response level but is liable to generate vibration and/or noise. When auto tuning mode 1,2 and interpolation mode is selected, the result of auto tuning is automatically used.
15 PG2 Position loop gain 2
Used to set the gain of the position loop. Set this parameter to increase position response to load disturbance. Higher setting increases the response level but is liable to generate vibration and/or noise. When auto tuning mode 1
2, manual mode and interpolation mode
is selected, the result of auto tuning is automatically used.
16 VG2 Speed loop gain 2
Set this parameter when vibration occurs on machines of low rigidity or large backlash. Higher setting increases the response level but is liable to generate vibration and/or noise. When auto tuning mode 1
2 and interpolation mode is selected, the
result of auto tuning is automatically used.
17 VIC Speed integral compensation
Used to set the constant of integral compensation. When auto tuning mode 1
2 and interpolation mode is selected, the
result of auto tuning is automatically used.
18 NCH Machine resonance suppression filter 1 (Notch filter)
Used to select the machine resonance suppression filter. (Refer to Section 7.2.)
0
Initial
Value
Unit
Setting
Range
177 rad/s 20
35 rad/s 1
817 rad/s 20
20000
48 ms 1
0 Refer to
name and function column.
to
5000
to
1000
to
to
1000
Adjustment DRU parameters
19 FFC
Notch frequency selection
Setting
00 01 02 03 04 05 06 07
Frequency
Invalid
4500 2250 1500 1125 900 750
642.9
Setting
08 09 0A 0B 0C 0D 0E 0F
Frequency
562.5 500 450
409.1 375
346.2
321.4 300
Setting
10 11 12 13 14 15 16 17
Frequency
281.3
264.7 250
236.8 225
214.3
204.5
195.7
Setting
18 19 1A 1B 1C 1D 1E 1F
Frequency
187.5 180
173.1
166.7
160.1
155.2 150
145.2
Notch depth selection
Setting
0 1 2 3
Depth Gain
Deep
Shallow
40dB 14dB
to
8dB 4dB
Feed forward gain Set the feed forward gain. When the setting is 100%, the droop pulses during operation at constant speed are nearly zero. However, sudden acceleration/deceleration will increase the overshoot. As a guideline, when the feed forward gain setting is 100%, set 1s or more as the acceleration/deceleration time constant up to the rated speed.
0%0
to
100
5 - 7
5. PARAMETERS
y
)
(
)
Classifi-
cation
Adjustment DRU parameters
No. Symbol Name and Function
20 INP In-position range
Used to set the droop pulse range in which the in-position (INP) will be output to the controller. Make setting in the feedback pulse unit (parameter No. 6). For example, when you want to set
10 m in the conditions that the ballscrew is direct coupled, the lead is 10mm (0.39inch), and the feedback pulses are 8192 pulses/rev (parameter No. 6 : 1), set "8" as indicated by the following expression:
10 10 10 10
6
8192 8.192 8
3
21 MBR Electromagnetic brake sequence output
Used to set a time delay (Tb) from when the electromagnetic brake interlock (MBR) turns off until the base circuit is shut off.
22 For manufacturer setting
Do not change this value by any means.
23 *OP1 Optional function 1
Used to make the servo forced stop function invalid.
00
Servo forced stop selection 0: Valid (Use the forced stop (EM1).) 1: Invalid (Do not use the forced stop (EM1).) Automatically switched on internally
Encoder cable selection 0: 2-wire type (when MR-JCCBL M-L/H is used) 1: 4-wire t
24 *OP2 Optional function 2
Used to select slight vibration suppression control and motor-less operation
0 0
Slight vibration suppression control selection Made valid when auto tuning selection is set to "0002" in parameter No.8. Used to suppress vibration at a stop. 0: Invalid 1: Valid
Motor-less operation selection 0: Invalid 1: Makes motor-less operation valid.
When motor-less operation is made valid, signal output or status display can be provided as if the servo motor is running actually in response to the servo system controller command, without the servo motor being connected. Motor-less operation is performed as in the motor-less operation using the MR Configurator (servo configuration software).
Refer to Section 5.2.4.
pe (when MR-JC4CBL M-H is used
Initial
Value
Unit
Setting
Range
100 pulse 0
to
50000
100 ms 0
to
1000
0001
0000 Refer to
name and function column.
0000 Refer to
name and function column.
5 - 8
5. PARAMETERS
Classifi-
cation
Adjustment DRU parameters
No. Symbol Name and Function
25 LPF Low-pass filter/adaptive vibration suppression control
Used to select the low-pass filter and adaptive vibration suppression control. (Refer to Chapter 7.)
0
Low-pass filter selection 0: Valid (Automatic adjustment)
1: Invalid
When you choose "valid",
bandwidth filter is set automatically.
Adaptive vibration suppression control selection 0: Invalid 1: Valid Machine resonance frequency is always detected and the filter is generated in response to resonance to suppress machine vibration. 2: Held The characteristics of the filter generated so far are held, and detection of machine resonance is stopped.
Adaptive vibration suppression control sensitivity selection Used to select the sensitivity of machine resonance detection. 0: Normal 1: Large sensitivity
VG2 setting 10
2 (1 GD2 setting 0.1)
[H
Initial
Value
0000 Refer to
z]
Unit
Setting
Range
name and function column.
26 For manufacturer setting
Do not change this value by any means.
27 0 28 0 29 30 ZSP Zero speed
31 ERZ Error excessive alarm level
32 OP5 Optional function 5
Expansion DRU parameters
For manufacturer setting Do not change this value by any means.
Used to set the output range of the zero speed (ZSP).
Used to set the output range of the error excessive alarm.
Used to select PI-PID control switch-over.
0 00
PI-PID control switch over selection 0: PI control is always valid.
1: Droop-based switching is valid in position control mode (refer to DRU parameter No. 34).
2: PID control is always valid.
0
0001
50 r/min 0
to
10000
80 0.1rev 0
to
1000
0000 Refer to
name and function column.
5 - 9
5. PARAMETERS
A
Classifi-
cation
Expansion DRU parameters
No. Symbol Name and Function
33 *OP6 Option function 6
Used to select the serial communication baudrate, serial communication response delay time setting and encoder output pulse setting.
0
34 VPI PI-PID control switch-over position droop
Used to set the position droop value (number of pulses) at which PI control is switched over to PID control. Set "0001" in DRU parameter No. 32 to make this function valid.
35 For manufacturer setting
Do not change this value by any means.
36 VDC Speed differential compensation
Used to set the differential compensation.
37 For manufacturer setting 0010 38 *ENR
Encoder output pulses
Used to set the encoder pulses (A-phase, B-phase) output by the enhancing IO unit. Set the value 4 times greater than the A-phase and B-phase pulses. You can use DRU parameter No.33 to choose the output pulse setting or output division ratio setting. The number of A-phase and B-phase pulses actually output is 1/4 times greater than the preset number of pulses. The maximum output frequency is 1.3Mpps (after multiplication by
4). Use this parameter within this range.
For output pulse designation Set "0 Set the number of pulses per servo motor revolution. Output pulse At the setting of 5600, for example, the actually output A-phase and B-phase pulses are as indicated below:
A-phase and B-phase output pulses
For output division ratio setting Set "1
The number of pulses per servo motor revolution is divided by the set value.
Output pulse
At the setting of 8, for example, the actually output A-phase and B-phase pulses are as indicated below:
00
Encoder output pulse setting selection (refer to parameter No.38) 0: Output pulse setting 1: Division ratio setting
POINT
The MR-J2M-D01 extension IO unit is required to output the
encoder pulses (A phase, B phase, Z phase).
" (initial value) in DRU parameter No.33.
set value [pulses/rev]
5600
1400[pulse]
4
" in DRU parameter No.33.
Resolution per servo motor revolution
Set value
-phase and B-phase output pulses 4096[pulse]
13107241
8
[pulses/rev]
Initial
Value
0000 Refer to
980 0
4000 pulse/rev 1
Unit
0pulse0
0
Setting
Range
name and function column.
to
50000
to
1000
to
65535
5 - 10
5. PARAMETERS
Classifi-
cation
Expansion DRU parameters
No. Symbol Name and Function
39 For manufacturer setting
Do not change this value by any means.
40 *BLK 0000 Refer to
DRU Parameter blocks write inhibit
Setting Operation
Reference0000 (initial value)
000C
100E
Write
Reference000A
Write
Reference DRU parameter
Write
Reference000E
Write
Reference DRU parameter
Write
Operation from
controller
DRU parameter No.1 to 39
DRU parameter No.1 to 39
DRU parameter No.1 to 39
DRU parameter No.1 to 39
DRU parameter No.1 to 39
Operation from MR
Configurator (servo
configuration
software)
DRU parameter No.1 to 11
DRU parameter No.40
No.1 to 40 DRU parameter No.1 to 11 DRU parameter No.1 to 40
No.1 to 40 DRU parameter No.40
40
40
Initial
Value
0
Unit
Setting
Range
name and function column.
5 - 11
5. PARAMETERS
Class No. Symbol Name and function
41 500 42 0000 43 0111 44 20 45 50 46 0 47 0 48 49 *CDP Gain changing selection
For manufacturer setting Do not change this value by any means.
Used to select the gain changing condition. (Refer to Section 7.5.)
000
Gain changing selection
Gains are changed in accordance with the settings of parameters No. 52 to 55 under any of the following conditions: 0: Invalid 1: Control command from controller 2: Command frequency is equal to higher than parameter No. 50 setting 3: Droop pulse value is equal to higher than parameter No. 50 setting 4: Servo motor speed is equal to higher than parameter No. 50 setting
Initial
value
0
0000 Refer to
Unit
Setting
range
Name
and
function
column
50 CDS Gain changing condition
Used to set the value of gain changing condition (command frequency, droop pulses, servo motor speed) selected in parameter No. 49. The set value unit changes with the changing condition item. (Refer to Section 7.5.)
51 CDT Gain changing time constant
Expansion DRU parameters 2
52 GD2B Ratio of load inertia moment to servo motor inertia moment 2
53 PG2B Position control gain 2 changing ratio
54 VG2B Speed control gain 2 changing ratio
55 VICB Speed integral compensation changing ratio
56 0000 57 0000 58 0000 59
Used to set the time constant at which the gains will change in response to the conditions set in parameters No. 49 and 50.
(Refer to Section 7.5.)
Used to set the ratio of load inertia moment to servo motor inertia moment when gain changing is valid.
Used to set the ratio of changing the position control gain 2 when gain changing is valid. Made valid when auto tuning is invalid.
Used to set the ratio of changing the speed control gain 2 when gain changing is valid. Made valid when auto tuning is invalid.
Used to set the ratio of changing the speed integral compensation when gain changing is valid. Made valid when auto tuning is
invalid. For manufacturer setting Do not change this value by any means.
10 kpps
pulse r/min
1ms 0
7.0 times 0
100 % 10
100 % 10
100 % 50
0000
0
to
9999
to
100
to
300.0
to
200
to
200
to
1000
5 - 12
5. PARAMETERS
Class No. Symbol Name and function
60 *OPC Optional function C
Use to select the encoder output pulse direction.
00
0
Encoder pulse output phase changing
Changes the phases of A, B-phase encoder pulses output .
Set value
0
1
A phase
B phase
A phase
B phase
Servo motor rotation direction
CCW CW
61 NH2 Machine resonance suppression filter 2
Used to selection the machine resonance suppression filter.
(Refer to Section 7.2.)
0
Notch frequency selection Set "00" when you have set adaptive vibration suppression control to be "valid" or "held" (parameter No. 25: 1 or 2 ).
Setting
Expansion DRU parameters 2
value
00 01 02 03 04 05 06 07
Frequency
Invalid
4500 2250 1500 1125
900 750
642.9
Frequency
Setting
value
08 09 0A 0B 0C 0D 0E 0F
Setting
value
562.5 500 450
409.1 375
346.2
321.4 300
Notch depth selection
Setting
value
0 1 2
3
Depth Gain
Deep
to
Shallow
10 11 12 13 14 15 16 17
40dB 14dB
8dB 4dB
A phase
B phase
A phase
B phase
Frequency
281.3
264.7 250
236.8 225
214.3
204.5
195.7
Setting
value
18 19 1A 1B 1C 1D 1E 1F
Frequency
187.5 180
173.1
166.7
160.1
155.2 150
145.2
Initial
value
Unit
Setting
range
0000 Refer to
Name
and
function
column
0000 Refer to
Name
and
function
column
5 - 13
5. PARAMETERS
Class No. Symbol Name and function
62 0000 63 400 64 100 65 1 66 1 67 0 68 0 69 0 70 0 71 0 72 0
Expansion DRU parameters 2
73 0 74 0 75
For manufacturer setting Do not change this value by any means.
Initial
value
0
Unit
Setting
range
5 - 14
5. PARAMETERS

5.2 Interface unit

5.2.1 IFU parameter write inhibit

POINT
Use the unit operation section pushbutton switches or MR Configurator
(servo configuration software) to set the IFU parameters of the interface unit. They cannot be set from the servo system controller.
Use the unit pushbutton switches or MR Configurator (servo configuration software) to set the interface unit parameters. The following table indicates the IFU parameters which are made valid for reference and write by setting the IFU parameter No. 19.
0000 (initial value)

5.2.2 Lists

(1) Item list
Classifi-
cation
No. Symbol Name
10 *OP2 Optional function 2 0020 11 *SL1 Slot 1 axis number selection 0000 12 *SL2 Slot 2 axis number selection 0001
Basic IFU parameters
13 *SL3 Slot 3 axis number selection 0002 14 *SL4 Slot 4 axis number selection 0003 15 *SL5 Slot 5 axis number selection 0004 16 *SL6 Slot 6 axis number selection 0005 17 *SL7 Slot 7 axis number selection 0006 18 *SL8 Slot 8 axis number selection 0007 19 *BLK IFU parameter write inhibit 0000
Setting Setting operation
Reference
Write
000A
Reference
Write
Operation from unit operation section or MR Configurator
(servo configuration software)
IFU parameter No. 1 to 19
IFU parameter No. 19
POINT
For any IFU parameter whose symbol is preceded by*, set the IFU
parameter value and switch power off once, then switch it on again to make that parameter setting valid. The parameter is set when communication between the servo system controller and servo amplifier is established (b* is displayed). After that, power the servo amplifier off once and then on again.
Initial
Value
0 *BPS Serial communication baudrate selection, alarm history clear 0000 1 SIC Serial communication time-out selection 0 2 *OP1 Function selection 1 0000 3 MD1 Analog monitor 1 output 0000 4 MD2 Analog monitor 2 output 0000 5 MD3 Analog monitor 3 output 0000 6 MO1 Analog monitor 1 offset 0 mV 7 MO2 Analog monitor 2 offset 0 mV 8 MO3 Analog monitor 3 offset 0 mV 9 *SSC SSCNET type selection 0200
Unit
Customer
setting
5 - 15
5. PARAMETERS
(2) Details list
Classifi-
cation
No. Symbol Name and Function
0 *BPS Serial communication function selection, alarm history clear
Basic IFU parameters
2 *OP1 Function selection 1
Used to select the serial communication baudrate, select various communication conditions, and clear the alarm history.
0
Serial baudrate selection 0: 9600 [bps] 1: 19200[bps] 2: 38400[bps] 3: 57600[bps]
Alarm history clear 0: Invalid 1: Valid When alarm history clear is made valid, the alarm history is cleared at next power-on. After the alarm history is cleared, the setting is automatically made invalid reset to "0".
Serial communication response delay time 0: Invalid 1: Valid, reply sent after delay time of 800 s or more
Set the time-out period of the communication protocol in [s] unit. Setting "0" disables time-out check.
Used to select the protocol of serial communication.
00
0
Protocol checksum selection
0: Yes (checksum added) 1: No (checksum not added)
Initial
Value
0000 Refer to
0
0000 Refer to
Unit
s1
Setting
Range
name and function column.
01 SIC Serial communication time-out selection
to
60
name and function column.
5 - 16
5. PARAMETERS
Classifi-
cation
No. Symbol Name and Function
3 *MD1 Analog monitor 1 output
Choose the signal to be output to analog monitor 1.
00
Analog monitor 1 selection 0: Servo motor speed ( 4V/max. Servo motor speed) 1: Torque ( 4V/max. Torque) 2: Servo motor speed ( 4V/max. Servo motor speed) 3: Torque ( 4V/max. Torque) 4: Current command ( 4V/max. Current command) 5: Speed command ( 4V/max. Servo motor speed) 6: Droop pulses ( 4V/128pulse) 7: Droop pulses ( 4V/2048pulse) 8: Droop pulses ( 4V/8192pulse) 9: Droop pulses ( 4V/32768pulse) A: Droop pulses ( 4V/131072pulse) B: Bus voltage ( 4V/400V) C: In position ( 4V/ON) D: Ready ( 4V/ON) E: Trouble ( 4V/ON)
Axis number of channel 1 Choose the axis number output to analog monitor 1. Axis number set value. Selecting 0 disables output.
Initial
Value
0000 Refer to
Unit
Setting
Range
name and function column.
4 *MD2 Analog monitor 2 output
Choose the signal to be output to analog monitor 2.
Basic IFU parameters
00
Analog monitor 2 selection 0: Servo motor speed ( 4V/max. Servo motor speed) 1: Torque ( 4V/max. Torque) 2: Servo motor speed ( 4V/max. Servo motor speed) 3: Torque ( 4V/max. Torque) 4: Current command ( 4V/max. Current command) 5: Speed command ( 4V/max. Servo motor speed) 6: Droop pulses ( 4V/128pulse) 7: Droop pulses ( 4V/2048pulse) 8: Droop pulses ( 4V/8192pulse) 9: Droop pulses ( 4V/32768pulse) A: Droop pulses ( 4V/131072pulse) B: Bus voltage ( 4V/400V) C: In position ( 4V/ON) D: Ready ( 4V/ON) E: Trouble ( 4V/ON)
Axis number of channel 2 Choose the axis number output to analog monitor 2. Axis number set value. Selecting 0 disables output.
0000 Refer to
name and function column.
5 - 17
5. PARAMETERS
Classifi-
cation
Basic IFU parameters
No. Symbol Name and Function
5 *MD3 Analog monitor 3 output
Choose the signal to be output to analog monitor 3.
00
Analog monitor 3 selection 0: Servo motor speed ( 4V/max. Servo motor speed) 1: Torque ( 4V/max. Torque) 2: Servo motor speed ( 4V/max. Servo motor speed) 3: Torque ( 4V/max. Torque) 4: Current command ( 4V/max. Current command) 5: Speed command ( 4V/max. Servo motor speed) 6: Droop pulses ( 4V/128pulse) 7: Droop pulses ( 4V/2048pulse) 8: Droop pulses ( 4V/8192pulse) 9: Droop pulses ( 4V/32768pulse) A: Droop pulses ( 4V/131072pulse) B: Bus voltage ( 4V/400V) C: In position ( 4V/ON) D: Ready ( 4V/ON) E: Trouble ( 4V/ON)
Axis number of channel 3 Choose the axis number output to analog monitor 3. Axis number set value. Selecting 0 disables output.
Initial
Value
0000 Refer to
Unit
Setting
Range
name and function column.
MO1 Analog monitor 1 offset
6
Used to set the offset voltage of the analog monitor 1 (MO1).
MO2 Analog monitor 2 offset
7
Used to set the offset voltage of the analog monitor 2 (MO2).
MO3 Analog monitor 3 offset
8
Used to set the offset voltage of the analog monitor 3 (MO2).
0mV
0mV
0mV
999
to
999
999
to
999
999
to
999
5 - 18
5. PARAMETERS
Classifi-
cation
No. Symbol Name and Function
9 *SSC SSCNET type selection
Select the network type of the interface unit.
02
SSCNET type selection 00: SSCNET3.5ms 01: SSCNET1.7ms 02: SSCNET0.8ms 12: SSCNET
POINT
When using motion controller Q series, set the communication cycle according to the motion controller. The initial settings of communication cycle/number of control axes of motion controller Q series are as follows:
1. Q173CPU SV13: SSCNET0.8ms/1 to 8 axes, SSCNET1.7ms/9 to 16
axes, SSCNET3.5ms/17 to 32 axes
SV22: SSCNET0.8ms/1 to 4 axes, SSCNET1.7ms/5 to 12
axes, SSCNET3.5ms/13 to 32 axes
2. Q172CPU SV13: SSCNET0.8ms/1 to 8 axes SV22: SSCNET0.8ms/1 to 4 axes, SSCNET1.7ms/5 to 8
axes
The communication cycle of motion controller can be
changed using the parameter.
In the case of MR-J2M, initialization of servo amplifier MR-
J2M (LED indication "@ Ab#" or "@ AC#") will not be completed, if the communication cycle settings are different between the motion controller and servo amplifier MR­J2M.
Initial
Value
Unit
Setting
Range
0200 Refer to
name
and
function
column.
Basic IFU parameters
10 *OP2 Optional function 2
Choose the input signal filter and test operation.
0
Test operation selection 0: Invalid 1: Valid
Input signal filter 0: No 1: 1.777ms 2: 3.555ms
Electromagnetic brake interlock output axis number selection Choose the axis number of the drive unit which uses electromagnetic brake interlock output (MBR).
Setting Selected Axis
All connected axes
0 1 2 3 4 5 6 7 8
Seventh axis
First axis
Second axis
Third axis
Fourth axis
Fifth axis Sixth axis
Eighth axis
0020 Refer to
name and function column.
5 - 19
5. PARAMETERS
Classifi-
cation
Basic IFU parameters
No. Symbol Name and Function
11 *SL1 Slot 1 axis number selection
Choose the axis number of the drive unit connected to the first slot of the base unit. (Refer to Section 2.8) Axis number In the initial setting, the first axis is set to the first slot.
12 *SL2 Slot 2 axis number selection
Choose the axis number of the drive unit connected to the second slot of the base unit. (Refer to Section 2.8) Axis number In the initial setting, the second axis is set to the second slot.
13 *SL3 Slot 3 axis number selection
Choose the axis number of the drive unit connected to the third slot of the base unit. (Refer to Section 2.8) Axis number In the initial setting, the third axis is set to the third slot.
14 *SL4 Slot 4 axis number selection
Choose the axis number of the drive unit connected to the fourth slot of the base unit. (Refer to Section 2.8) Axis number In the initial setting, the fourth axis is set to the fourth slot.
15 *SL5 Slot 5 axis number selection
Choose the axis number of the drive unit connected to the fifth slot of the base unit. (Refer to Section 2.8) Axis number In the initial setting, the fifth axis is set to the fifth slot.
16 *SL6 Slot 6 axis number selection
Choose the axis number of the drive unit connected to the sixth slot of the base unit. (Refer to Section 2.8) Axis number In the initial setting, the sixth axis is set to the sixth slot.
17 *SL7 Slot 7 axis number selection
Choose the axis number of the drive unit connected to the seventh slot of the base unit. (Refer to Section 2.8) Axis number In the initial setting, the seventh axis is set to the seventh slot.
18 *SL8 Slot 8 axis number selection
Choose the axis number of the drive unit connected to the eighth slot of the base unit. (Refer to Section 2.8) Axis number In the initial setting, the eighth axis is set to the eighth slot.
19 *BLK 0000 Refer to
IFU parameter write inhibit
Setting
(initial
value)
000A
set value 1
set value 1
set value 1
set value 1
set value 1
set value 1
set value 1
set value 1
Setting
operation
Reference0000
Write
Reference
Write
Operation from unit operation section or
MR Configurator
(servo configuration software)
IFU parameter No. 1 to 19
IFU parameter No. 19
Initial
Value
0000 0000
0001 0000
0002 0000
0003 0000
0004 0000
0005 0000
0006 0000
0007 0000
Unit
Setting
Range
to
0007h
to
0007h
to
0007h
to
0007h
to
0007h
to
0007h
to
0007h
to
0007h
name and function column.
5 - 20
5. PARAMETERS

5.2.3 Analog monitor

The servo status can be output to 3 channels in terms of voltage. Using an ammeter enables monitoring the servo status.
(1) Setting
Change the following digits of IFU parameter No.3 to 5:
IFU parameter No. 3
Analog monitor 1 selection (Signal output to across MO1-LG)
Axis number of analog monitor 1
IFU parameter No. 4
Analog monitor 2 selection (Signal output to across MO2-LG)
Axis number of analog monitor 2
IFU parameter No. 5
Analog monitor 3 selection (Signal output to across MO3-LG)
Axis number of analog monitor 3
IFU parameters No.6 to 8 can be used to set the offset voltages to the analog output voltages. The setting range is between
IFU parameter No. Description Setting range [mV]
6 Used to set the offset voltage for the analog monitor 1. 7 Used to set the offset voltage for the analog monitor 2. 8 Used to set the offset voltage for the analog monitor 3.
999 and 999mV.
999 to 999
(2) Settings
The three channels are all factory-set to output servo motor speeds. By changing the IFU parameter No. 3 to 5 values, you can change the data as shown in the following tale. Refer to (3) for measurement points.
Setting Output item Data Setting Output item Data
4[V]
Driving in CCW direction
0 Servo motor speed
4[V]
CCW direction
1 Torque (Note)
Max. speed
CW direction
0
Max. speed
4[V]
5 - 21
Max. torque
Driving in CW direction
0
Max. torque
4[V]
5. PARAMETERS
Setting Output item Data Setting Output item Data
2 Servo motor speed
CW direction
4[V]
CCW direction
9 Droop pulses
4V/32768pulse)
(
4[V]
32768[pulse]
CCW direction
0
32768[pulse]
3 Torque (Note)
4 Current command
5 Speed command
6 Droop pulses
4V/128pulse)
(
Max. speed Max. speed
Driving in CW direction
Max. torque Max. torque
Max. current command
CW direction
Max. speed
CW direction
4[V]
4[V]
4[V]
4[V]
0
Driving in CCW direction
0
CCW direction
0
Max. current command
4[V]
CCW direction
0
Max. speed
4[V]
CCW direction
A Droop pulses
4V/131072pulse)
(
B Bus voltage
CIn-position
DReady
CW direction
131072[pulse]
CW direction
4[V]
4[V]
0
4[V]
4[V]
0
0
OFF
4[V]
CCW direction
131072[pulse]
4[V]
400[V]
ON
128[pulse]
CW direction
7 Droop pulses
4V/2048pulse)
(
4[V]
2048[pulse]
CW direction
8 Droop pulses
4V/8192pulse)
(
8192[pulse]
CW direction
Note. 4V is outputted at the maximum torque.
4[V]
0
128[pulse]
4[V]
CCW direction
0
2048[pulse]
4[V]
CCW direction
0
8192[pulse]
4[V]
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E Failure
4[V]
OFF
0
Alarm provided
0
ON
Alarm not provided
5. PARAMETERS
(3) Analog monitor block diagram
Servo Motor
Bus voltage
Current
encoder
PWM M
Current
Current
command
Speed
Encoder
Position feedback
Current feedback
control
Torque
control
ential
Differ-
speed
Servo motor
Droop pulse
Speed command
Speed
command
Position
ential
Differ-
ommand
control
pulse
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5. PARAMETERS

5.2.4 Test operation mode

The test operation mode is designed for servo operation confirmation and not for
CAUTION
By using a personal computer and the MR Configurator (servo configuration software), you can execute jog operation, positioning operation, motor-less operation and DO forced output without connecting the servo system controller.
(1) Setting and indication
1) Set "
1" in the IFU parameter No. 10 to enable test operation. After setting, switch power off
once, then on again to make the IFU parameter No. 10 valid.
2) Switching power on changes the interface unit display as shown below. # in the figure below indicates the axis number of the drive unit.
machine operation confirmation. Do not use this mode with the machine. Always use the servo motor alone. If an operation fault occurred, use the forced stop (EM1) to make a stop.
# ## ## ## ##
3) Perform test operation using the personal computer.
(2) Test operation mode
(a) Jog operation
Jog operation can be performed without using the servo system controller. Use this operation with the forced stop reset. This operation may be used independently of whether the servo is on or off and whether the servo system controller is connected or not. Exercise control on the jog operation screen of the MR Configurator (servo configuration software).
1) Operation pattern
Item Initial value Setting range
Speed [r/min] 200 0 to max. speed Acceleration/deceleration time constant [ms] 1000 1 to 20000
2) Operation method
Operation Screen control
Forward rotation start "Click Forward" button. Reverse rotation start "Click Reverse" button. Stop "Click Stop" button.
(b) Positioning operation
Positioning operation can be performed without using the servo system controller. Use this operation with the forced stop reset. This operation may be used independently of whether the servo is on or off and whether the servo system controller is connected or not. Exercise control on the positioning operation screen of the MR Configurator (servo configuration software).
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5. PARAMETERS
1) Operation pattern
Item Initial value Setting range
Travel [pulse] 100000 0 to 9999999 Speed [r/min] 200 0 to max. speed Acceleration/deceleration time constant [ms] 1000 1 to 50000
2) Operation method
Operation Screen control
Forward rotation start "Click Forward" button. Reverse rotation start "Click Reverse" button. Pause "Click Pause" button.
(c) Program operation
Positioning operation can be performed in two or more operation patterns combined, without using the servo system controller. Use this operation with the forced stop reset. This operation may be used independently of whether the servo is on or off and whether the servo system controller is connected or not. Exercise control on the programmed operation screen of the MR Configurator (servo configuration software). For full information, refer to the MR Configurator (servo configuration software) Installation Guide.
Operation Screen Control
Start "Click Start" button.
Stop "Click Reset" button.
(d) Motorless operation
POINT
Motor-less operation may be used with the MR Configurator (servo
configuration software). Usually, however, use motor-less operation which is available by making the servo system controller parameter setting.
Without connecting the servo motor, output signals or status displays can be provided in response to the servo system controller commands as if the servo motor is actually running. This operation may be used to check the servo system controller sequence. Use this operation with the forced stop reset. Use this operation with MELSERVO-J2M connected to the servo system controller. Exercise control on the motor-less operation screen of the MR Configurator (servo configuration software).
1) Load conditions
Load Item Condition
Load torque 0 Load inertia moment ratio Same as servo motor inertia moment
2) Alarms The following alarms and warning do not occur. However, the other alarms and warnings occur as when the servo motor is connected:
Encoder error 1 (A.16) Encoder error 2 (A.20) Absolute position erasure (A.25) Battery cable breakage warning (A.92)
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5. PARAMETERS
(e) Output signal (DO) forced output
Output signals can be switched on/off forcibly independently of the servo status. Use this function for output signal wiring check, etc. Exercise control on the DO forced output screen of the MR Configurator (servo configuration software).
(3) Configuration
Configuration should be as in Section 3.1. Always install a forced stop switch to enable a stop at occurrence of an alarm.
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6. GENERAL GAIN ADJUSTMENT

6. GENERAL GAIN ADJUSTMENT

6.1 Different adjustment methods

6.1.1 Adjustment on a MELSERVO-J2M

The gain adjustment in this section can be made on MELSERVO-J2M. For gain adjustment, first execute auto tuning mode 1. If you are not satisfied with the results, execute auto tuning mode 2, manual mode 1 and manual mode 2 in this order.
(1) Gain adjustment mode explanation
Gain adjustment
mode
Auto tuning mode 1 (initial value)
Auto tuning mode 2 0003 PG1 (DRU parameter No. 13)
Manual mode 1 0004 VG1 (DRU parameter No. 14)
Manual mode 2 0002
Interpolation mode 0000 Always estimated GD2 (DRU parameter No. 12)
DRU parameter
No. 8 setting
0001 Always estimated GD2 (DRU parameter No. 12)
Estimation of load
inertia moment ratio
Fixed to parameter No. 12 value
Automatically set parameters Manually set parameters
PG1 (DRU parameter No. 13) VG1 (DRU parameter No. 14) PG2 (DRU parameter No. 15) VG2 (DRU parameter No. 16) VIC (DRU parameter No. 17)
VG1 (DRU parameter No. 14) PG2 (DRU parameter No. 15) VG2 (DRU parameter No. 16) VIC (DRU parameter No. 17)
PG2 (DRU parameter No. 15)
PG2 (DRU parameter No. 15) VG2 (DRU parameter No. 16) VIC (DRU parameter No. 17)
RSP (DRU parameter No. 9)
GD2 (DRU parameter No. 12) RSP (DRU parameter No. 9)
GD2 (DRU parameter No. 12) PG1 (DRU parameter No. 13) VG2 (DRU parameter No. 16) VIC (DRU parameter No. 17) GD2 (DRU parameter No. 12) PG1 (DRU parameter No. 13) VG1 (DRU parameter No. 14) PG2 (DRU parameter No. 15) VG2 (DRU parameter No. 16) VIC (DRU parameter No. 17) PG1 (DRU parameter No. 13) VG1 (DRU parameter No. 14)
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