(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.
A - 2
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
AmbienceIndoors (no direct sunlight) Free from corrosive gas, flammable gas, oil mist, dust and dirt
AltitudeMax. 1000m (3280 ft) above sea level
(Note)
Vibration
Note. Except the servo motor with reduction gear.
operation
In storage
During
operation
In storage90%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 unitServo 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.
A - 3
(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.
A - 4
(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
A - 5
(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.
A - 6
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.
A - 7
COMPLIANCE WITH EC DIRECTIVES
1. WHAT ARE EC DIRECTIVES?
The EC directives were issued to standardize the regulations of the EU countries and ensure smooth
distribution of safety-guaranteed products. In the EU countries, the machinery directive (effective in
January, 1995), EMC directive (effective in January, 1996) and low voltage directive (effective in January,
1997) of the EC directives require that products to be sold should meet their fundamental safety
requirements and carry the CE marks (CE marking). CE marking applies to machines and equipment
into which servo (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).
A - 9
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 unitDischarge time [min]
MR-J2M-BU43
MR-J2M-BU64
MR-J2M-BU85
(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 nameManual No.
MELSERVO-J2M Series To Use the AC Servo Safely
(Packed with the MR-J2M-P8B, MR-J2MMELSERVO Servo Motor Instruction ManualSH(NA)3181
EMC Installation GuidelinesIB(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
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
2.8 Control axis selection .............................................................................................................................. 2- 9
3. SIGNALS AND WIRING3- 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
3.9 Instructions for the 3M connector......................................................................................................... 3-27
1
4. OPERATION AND DISPLAY4- 1 to 4-10
4.1 Normal indication.................................................................................................................................... 4- 1
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. PARAMETERS5- 1 to 5-26
5.1 Drive unit .................................................................................................................................................5- 1
5.2 Interface unit ..........................................................................................................................................5-15
5.2.3 Analog monitor................................................................................................................................. 5-21
5.2.4 Test operation mode ........................................................................................................................5-24
6. GENERAL GAIN ADJUSTMENT6- 1 to 6-12
6.1 Different adjustment methods ...............................................................................................................6- 1
6.1.1 Adjustment on a MELSERVO-J2M................................................................................................ 6- 1
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
7.5.4 Gain changing operation .................................................................................................................7- 8
8. INSPECTION8- 1 to 8- 2
2
9. TROUBLESHOOTING9- 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
13.3 Confirmation of absolute position detection data............................................................................. 13- 3
APPENDIXApp- 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 unitInterface unit
CNP1B
Power
supply
3-phase
200 to
NFBMC
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-3HCON3A-3HCON3A-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
ModelMR-J2M-BU4MR-J2M-BU6MR-J2M-BU8
Number of slots468
(Note)
Control
circuit
power
supply
Main
circuit
power
supply
FunctionConverter function, regenerative control, rushing into current control function
Protective functions
Mass
Note. The control circuit power supply is recorded to the interface unit.
Voltage/frequency3-phase 200 to 230VAC or 1-phase 200 to 230VAC, 50/60Hz
Permissible voltage fluctuation1-phase 170 to 253VAC
Permissible frequency fluctuationWithin 5%
Inrush current20A (5ms)
Voltage/frequency3-phase 200 to 230VAC or 1-phase 200 to 230VAC, 50/60Hz
Permissible voltage fluctuation3-phase 170 to 253VAC or 1-phase 170 to 253VAC, 50/60Hz
Permissible frequency fluctuationWithin 5%
Maximum servo motor connection
capacity [W]
Continuous capacity [W]128019202560
Inrush current62.5A (15ms)
The following table lists the functions of this servo. For details of the functions, refer to the Reference
field.
(1) Drive unit (Abbreviation DRU)
FunctionDescriptionReference
High-resolution encoderHigh-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 limitServo 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.
Machine analyzer function Analyzes the frequency characteristic of the mechanical system.
Machine simulation
Gain search functionCan simulate machine motions on the basis of the machine analyzer results.
Test operation modeJOG 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
FunctionDescriptionReference
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.
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 CN1ATo 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.
EnvironmentConditions
During
Ambient
temperature
Ambient
humidity
Ambience
AltitudeMax. 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/commandStopping condition
Servo off commandThe 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.
111 slot axis number selection0000Axis 1
122 slot axis number selection0001Axis 2
133 slot axis number selection0002Axis 3
144 slot axis number selection0003Axis 4
155 slot axis number selection0004Axis 5
166 slot axis number selection0005Axis 6
177 slot axis number selection0006Axis 7
188 slot axis number selection0007Axis 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)
CN3CN3
8
VIN
EM1 20
SG3
(Note 5)
CN1A
(Note 5)
CN3
Plate
(Note 5)
CN1B
13 MBR
4MO1
14 MO2
7MO3
11LG
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-P8BMR-J2S-
QD75MMR-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 motionMR-J2HBUS
MR-J2HBUS M
BMR-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.
CN1ACN1B
2
LGLG
RD
4
6
LG
8
EMG
10
BT
2
RD
4
6
8
10
2
RXD
4
MO1
6
EMG
1
LGLG
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
ModelMaker
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
ConnectorNameFunction/Application
CN1AConnector for bus cable from preceding axis.
CN1BConnector for bus cable to next axis
CN3
Communication connector
(I/O signal connector)
(2) I/O signals
(a) Input signal
SignalSymbol
Forced stopEM1
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/ApplicationI/O Division
DI-1
(b) Output signals
SignalSymbol
Electromagnetic brake
interlock
Analog monitor 1MO1
Analog monitor 2MO2
Analog monitor 3MO3
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/ApplicationI/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.
SignalSymbol
Power input for digital
interface
Common for digital
interface
Control commonLG
ShieldSDPlateConnect 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
39LZ4
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
50LA5
25 LAR5
49LB5
24 LBR5
48LZ5
23 LZR5
47LA6
22 LAR6
46LB6
21 LBR6
45LZ6
20 LZR6
44LA7
19 LAR7
43LB7
18 LBR7
42LZ7
17 LZR7
41LA8
16 LAR8
40LB8
15 LBR8
39LZ8
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.
SignalSymbol
pulse 1LAR1 CN4A-25
pulse 1LBR1 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-19Encoder A-phase pulse 1LA1
LBR3 CN4A-18Encoder Z-phase pulse 1LZ1
LZR3 CN4A-17
LAR4 CN4A-16Encoder B-phase pulse 2LB2
LBR4 CN4A-15
LZR4 CN4A-14Encoder A-phase pulse 3LA3
LAR5 CN4B-25Encoder Z-phase pulse 3LZ3
LBR5 CN4B-24
LZR5 CN4B-23Encoder B-phase pulse 4LB4
LAR6 CN4B-22
LBR6 CN4B-21Encoder A-phase pulse 5LA5
LZR6 CN4B-20Encoder Z-phase pulse 5LZ5
LAR7 CN4B-19
LBR7 CN4B-18Encoder B-phase pulse 6LB6
LZR7 CN4B-17
LAR8 CN4B-16Encoder A-phase pulse 7LA7
LBR8 CN4B-15Encoder Z-phase pulse 7LZ7
LZR8 CN4B-14
Connector
pin No.
LA1CN4A-50DO-2Encoder A-phase
LB1CN4A-49Encoder B-phase
LZ1CN4A-48
LA2CN4A-47
LB2CN4A-46Encoder B-phase
LZ2CN4A-45
LA3CN4A-44
LB3CN4A-43Encoder B-phase pulse 1LB1 LBR1
LZ3CN4A-42Encoder pulse outputs for slot 2
LA4CN4A-41Encoder A-phase pulse 2LA2 LAR2
LB4CN4A-40Encoder Z-phase pulse 2LZ2 LZR2
LZ4CN4A-39
LA5CN4B-50Encoder B-phase pulse 3LB3 LBR3
LB5CN4B-49 Encoder pulse outputs for slot 4
LZ5CN4B-48Encoder A-phase pulse 4LA4 LAR4
LA6CN4B-47Encoder Z-phase pulse 4LZ4 LZR4
LB6CN4B-46
LZ6CN4B-45Encoder B-phase pulse 5LB5 LBR5
LA7CN4B-44 Encoder pulse outputs for slot 6
LB7CN4B-43Encoder A-phase pulse 6LA6 LAR6
LZ7CN4B-42Encoder Z-phase pulse 6LZ6 LZR6
LA8CN4B-41
LB8CN4B-40Encoder B-phase pulse 7LB7 LBR7
LZ8CN4B-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
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-
NFBMC
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
NFBMC
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).
Refer to Section 10.2.1 for the layouts and signal configurations of the terminal blocks.
ConnectorPin 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 motorConnection 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
144
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
ModelMaker
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 more30ms 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.
MBR1CN4A-9Electromagnetic brake interlock signal for axis 1
MBR2CN4A-10Electromagnetic brake interlock signal for axis 2
MBR3CN4A-34Electromagnetic brake interlock signal for axis 3
MBR4CN4A-35Electromagnetic brake interlock signal for axis 4
MBR5CN4B-9Electromagnetic brake interlock signal for axis 5
MBR6CN4B-10Electromagnetic brake interlock signal for axis 6
MBR7CN4B-34Electromagnetic brake interlock signal for axis 7
MBR8CN4B-35Electromagnetic 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).
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)
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 conductorSheath
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) IndicationStatusDescription
@ Ab#Initializing
@ AA# Initializing
@ AC# Initializing
@ Ad#InitializingThe initial parameters from the servo system controller were received.
@ AE# Initialize completionInitial data communication with the servo system controller was completed.
@ b#Ready OFFThe ready off signal from the servo system controller was received.
@ C#Servo OFFThe ready off signal from the servo system controller was received.
@ d#Servo ONThe ready off signal from the servo system controller was received.
(Note 2) @A**#Alarm WarningThe 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 136.
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]
DiagnosisBasic 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:
ItemStatus
Regenerative load ratio60%
Bus voltage270V
Displayed data
Interface unit display
Peak bus voltage350V
(2) Status display list
The following table lists the servo statuses that may be shown: Refer to Appendix 1 for the
measurement point.
NameSymbolUnitDescription
Regenerative load
ratio
Bus voltagePnVThe voltage (across P-N) of the main circuit converter is displayed.0 to 450
Peak bus voltagePnPV
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
NameDisplayDescription
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: OnPresent: Off
2) Forced stop (EM1)
ON: OnOFF: Off
3)
3) Electromagnetic brake interlock (MBR)
ON: OnOFF: Off
Output signal forced
output
Software version lowIndicates the version of the software.
Software version highIndicates 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.
NameDisplayDescription
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.
ParametersSetting 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.
SettingOperation
0000(initial value)
000A
000C
000E
100E
Operation from controller
Reference
Write
Reference
Write
ReferenceDRU parameter No.1 to 40
Write
Reference
Write
ReferenceDRU 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
Note. Depends on the DRU parameter No. 49 setting.
No. SymbolName
41500
420000
430111
4420
4550
460
470
48
49*CDPGain changing selection0000
50CDSGain changing condition10(Note)
51CDTGain changing time constant1ms
52GD2BRatio of load inertia moment to Servo motor inertia moment 27.0times
53PG2BPosition control gain 2 changing ratio100%
54VG2BSpeed control gain 2 changing ratio100%
55VICBSpeed integral compensation changing ratio100%
560000
570000
580000
59
60*OPCOptional function C0000
61NH2Machine resonance suppression filter 20000
620000
Absolute position detection selection
0: Invalid (Used in incremental system.
1: Valid (Used in absolute position
detection system.)
Initial
Value
0000Refer to
Unit
Setting
Range
name
and
function
column.
2*REG0000Refer 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
30080
40000
5
6*FBP0Refer 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.
SettingNumber of feedback pulses
016384
18192
632768
7131072
255Depending 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. SymbolName 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
8ATUAuto tuning
Used to select the gain adjustment mode of auto tuning.
000
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
0Refer to
0001Refer 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. SymbolName and Function
9RSPServo response
Used to select the response level of auto tuning.
000
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
0005Refer to
Unit
Setting
Range
name
and
function
column.
10TLPForward 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.
11TLNReverse 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.
12GD2
13PG1Position 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
7.0times0.0
to
300.0
35rad/s4
to
2000
5 - 6
5. PARAMETERS
Classifi-
cation
No. SymbolName and Function
14VG1Speed 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.
15PG2Position 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.
16VG2Speed 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.
17VICSpeed integral compensation
Used to set the constant of integral compensation.
When auto tuning mode 1
Used to select the machine resonance suppression filter.
(Refer to Section 7.2.)
0
Initial
Value
Unit
Setting
Range
177rad/s20
35rad/s1
817rad/s20
20000
48ms1
0Refer to
name
and
function
column.
to
5000
to
1000
to
to
1000
Adjustment DRU parameters
19FFC
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
DepthGain
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. SymbolName and Function
20INPIn-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
21MBRElectromagnetic 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.
22For 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
00
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
100pulse0
to
50000
100ms0
to
1000
0001
0000Refer to
name
and
function
column.
0000Refer to
name
and
function
column.
5 - 8
5. PARAMETERS
Classifi-
cation
Adjustment DRU parameters
No. SymbolName and Function
25LPFLow-pass filter/adaptive vibration suppression control
Used to select the low-pass filter and adaptive vibration suppression
control. (Refer to Chapter 7.)
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
0000Refer to
z]
Unit
Setting
Range
name
and
function
column.
26For manufacturer setting
Do not change this value by any means.
270
280
29
30ZSPZero speed
31ERZError excessive alarm level
32OP5Optional 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.
000
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
50r/min0
to
10000
800.1rev0
to
1000
0000Refer to
name
and
function
column.
5 - 9
5. PARAMETERS
A
Classifi-
cation
Expansion DRU parameters
No. SymbolName 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
34VPIPI-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.
35For manufacturer setting
Do not change this value by any means.
36VDCSpeed differential compensation
Used to set the differential compensation.
37For manufacturer setting0010
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 pulses4096[pulse]
13107241
8
[pulses/rev]
Initial
Value
0000Refer to
9800
4000pulse/rev1
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. SymbolName and Function
39For manufacturer setting
Do not change this value by any means.
40*BLK0000Refer to
DRU Parameter blocks write inhibit
SettingOperation
Reference0000
(initial
value)
000C
100E
Write
Reference000A
Write
ReferenceDRU parameter
Write
Reference000E
Write
ReferenceDRU 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
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
0000Refer to
Unit
Setting
range
Name
and
function
column
50CDSGain 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.)
51CDTGain changing time constant
Expansion DRU parameters 2
52GD2BRatio of load inertia moment to servo motor inertia moment 2
53PG2BPosition control gain 2 changing ratio
54VG2BSpeed control gain 2 changing ratio
55VICBSpeed integral compensation changing ratio
560000
570000
580000
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.
10kpps
pulse
r/min
1ms 0
7.0times0
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
ClassNo. SymbolName and function
60*OPCOptional 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
CCWCW
61NH2Machine 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 ).
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. SymbolName
10*OP2 Optional function 20020
11*SL1Slot 1 axis number selection0000
12*SL2Slot 2 axis number selection0001
Basic IFU parameters
13*SL3Slot 3 axis number selection0002
14*SL4Slot 4 axis number selection0003
15*SL5Slot 5 axis number selection0004
16*SL6Slot 6 axis number selection0005
17*SL7Slot 7 axis number selection0006
18*SL8Slot 8 axis number selection0007
19*BLK IFU parameter write inhibit0000
SettingSetting 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.
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
0000Refer to
0
0000Refer to
Unit
s1
Setting
Range
name
and
function
column.
01SICSerial communication time-out selection
to
60
name
and
function
column.
5 - 16
5. PARAMETERS
Classifi-
cation
No. SymbolName 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
0000Refer 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.
0000Refer to
name
and
function
column.
5 - 17
5. PARAMETERS
Classifi-
cation
Basic IFU parameters
No. SymbolName 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
0000Refer to
Unit
Setting
Range
name
and
function
column.
MO1Analog monitor 1 offset
6
Used to set the offset voltage of the analog monitor 1 (MO1).
MO2Analog monitor 2 offset
7
Used to set the offset voltage of the analog monitor 2 (MO2).
MO3Analog monitor 3 offset
8
Used to set the offset voltage of the analog monitor 3 (MO2).
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
0200Refer 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).
SettingSelected 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
0020Refer to
name
and
function
column.
5 - 19
5. PARAMETERS
Classifi-
cation
Basic IFU parameters
No. SymbolName and Function
11*SL1Slot 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*SL2Slot 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*SL3Slot 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*SL4Slot 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*SL5Slot 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*SL6Slot 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*SL7Slot 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*SL8Slot 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*BLK0000Refer 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
00000000
00010000
00020000
00030000
00040000
00050000
00060000
00070000
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.DescriptionSetting range [mV]
6Used to set the offset voltage for the analog monitor 1.
7Used to set the offset voltage for the analog monitor 2.
8Used 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.
SettingOutput itemDataSettingOutput itemData
4[V]
Driving in
CCW direction
0Servo motor speed
4[V]
CCW direction
1Torque (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
SettingOutput itemDataSettingOutput itemData
2Servo motor speed
CW
direction
4[V]
CCW
direction
9Droop pulses
4V/32768pulse)
(
4[V]
32768[pulse]
CCW direction
0
32768[pulse]
3Torque (Note)
4Current command
5Speed command
6Droop pulses
4V/128pulse)
(
Max. speedMax. speed
Driving in
CW direction
Max. torqueMax. 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
ADroop pulses
4V/131072pulse)
(
BBus 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
7Droop pulses
4V/2048pulse)
(
4[V]
2048[pulse]
CW direction
8Droop 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]
5 - 22
EFailure
4[V]
OFF
0
Alarm
provided
0
ON
Alarm
not provided
5. PARAMETERS
(3) Analog monitor block diagram
Servo Motor
Bus voltage
Current
encoder
PWMM
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
5 - 23
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
ItemInitial valueSetting range
Speed [r/min]2000 to max. speed
Acceleration/deceleration time constant [ms]10001 to 20000
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).
5 - 24
5. PARAMETERS
1) Operation pattern
ItemInitial valueSetting range
Travel [pulse]1000000 to 9999999
Speed [r/min]2000 to max. speed
Acceleration/deceleration time constant [ms]10001 to 50000
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.
OperationScreen 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 ItemCondition
Load torque0
Load inertia moment ratioSame 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:
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.
5 - 26
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.