MISUMI RSH1C User manual

User’s Manual ENGLISH E
RSH1C/RSH2C/RSH3C
MISUMI SINGLE-AXIS ROBOT
4-43, Toyo 2-chome, Koto-ku, Tokyo, 135-8458 Japan
URL http://www.misumi.co.jp/english/company/office/
MISUMI Corporation
ME4-Ver. 1.03

Before using the RSH1C/RSH2C/RSH3C single-axis robots (Be sure to read the following notes.)
Before using the RSH1C/RSH2C/RSH3C single-axis robots
(Be sure to read the following notes.)
Thank you for purchasing the single-axis robot RSH1C/RSH2C/RSH3C.
Before using this robot, read the following notes and set the origin position.
The RSH1/RSH2/RSH3 single-axis robots use an incremental type or absolute type position
detector. The absolute type does not require an origin search (return-to-origin) after
turning the controller power back on. However, when the controller power is turned on in
the following cases, return-to-origin must be performed just the very first time.
(1) When robot cable was first connected after delivery from MISUMI.
(2) When robot cable was disconnected from the controller and then reconnected.
(3) When no absolute battery is connected.
(4) When a motor or cable was replaced.
At this point, any of the following errors is issued immediately after controller power
is turned on, but this is not a malfunction. The controller will operate normally by
restarting.
82 ENCODER ERROR
83 ABS. ENCODER ERR.
8A ABS. BATTERY ERR.
8B ABS. COUNT ERROR
8D ABS. OVERFLOW ERR.
… etc.
Setting the origin position
Set the origin position by referring to the following section in the robot controller user's
manual.
See "6.2 Origin search (return-to-origin)" in "6. Operating the robot" of the "H1
Operation Guide" section.
cCAUTION
Changing the origin position to the opposite side of the initial position may
cause a position shift or robot breakdowns, so use caution.
Avoid changing the origin detection method since it is dangerous in some
cases. If the origin position must be changed, please consult our sales office
or dealer.

MEMO

i
General Contents
General Contents
Introduction
Chapter 1 Using the Robot Safely
1-1 Safety information 1-1
1-2 Essential precautions 1-3
1-3
Industrial robot operating and maintenance personnel 1-9
1-4 Robot safety functions 1-10
1-5 Safety measures for the system 1-11
1-6 Trial operation 1-11
1-7 Work within the safety enclosure 1-12
1-8 Automatic operation 1-13
1-9 Warranty 1-14
Chapter 2 Product Overview
2-1 Checking the product 2-1
2-2 Robot part names 2-1
Chapter 3 Installation and Connections
3-1 Carrying the robot 3-1
3-2 Robot installation conditions 3-2
3-2-1 Installation environments 3-2
3-2-2 Installation base 3-3
3-3 Installing the robot 3-5
3-4 Connecting the robot to the controller 3-7
3-5 Suction hoses connection 3-10
3-6 Setting the operating conditions 3-11
3-6-1 Payload 3-11

General Contents
ii
3-6-2 Maximum speed setting 3-12
3-6-3 Duty 3-12
Chapter 4 Periodic Inspection and Maintenance
4-1 Before beginning work 4-1
4-2 Periodic inspection 4-3
4-2-1 Daily inspection 4-3
4-2-2 Three-month inspection 4-4
4-2-3 Six-month inspection 4-6
4-2-4 Three-year inspection 4-7
4-3 Adjusting shutter looseness 4-8
4-4 Applying grease 4-10
4-5 Replacing the shutter 4-13
4-6 Replacing the motor 4-16
Chapter 5 Troubleshooting
5-1 Positioning error 5-1
Chapter 6 Specifications
6-1 Main unit specifications 6-1
6-1-1 RSH1C 6-1
6-1-2 RSH2C 6-4
6-1-3 RSH3C 6-7
6-2 AC servo motor specifications 6-10
6-2-1 AC servo motor termination 6-10
6-2-2 Brake cable specifications 6-11
6-3 Robot cables 6-12
Appendix
About machine reference i
Moment of inertia calculation ii

Introduction
Introduction
The MISUMI single-axis robots RSH1/RSH2/RSH3 are industrial robots that offer improved
ease of use, resistance to environmental conditions, and maintenance work. A wide
varaiety of product lineup allows you to select the desired robot model that best matches
your application.
This user's manual describes the safety measures, handling, adjustment and maintenance
of the RSH1C/RSH2C/RSH3C robots for correct, safe and effective use.
Be sure to read this manual carefully before installing the RSH1C/RSH2C/RSH3C robots.
Even after you have read this manual, keep it in a safe and convenient place for future
reference.
• This user's manual should be used with the robot and considered an integral part of
it. When the robot is moved, transferred or sold, send this manual to the new user
along with the robot. Be sure to explain to the new user the need to read through this
manual.
• Specifications of robot models other than standard models may be omitted in this
manual if they are common to those of standard models. In this case, refer to the
specifications of standard models.
• For details on specific operation of the robot, refer to the separate user’s manual for the
robot controller being used.
NOTES
◆
The contents of this manual are subject to change without prior notice.
◆
While every effort has been made to ensure the contents of this manual are
correct, please contact us if you find any part of this manual to be unclear,
confusing or inaccurate.

MEMO

Chapter 1 Using the Robot Safely
Contents
1-1 Safety information 1-1
1-2 Essential precautions 1-3
1-3
Industrial robot operating and maintenance personnel 1-9
1-4 Robot safety functions 1-10
1-5 Safety measures for the system 1-11
1-6 Trial operation 1-11
1-7 Work within the safety enclosure 1-12
1-8 Automatic operation 1-13
1-9 Warranty 1-14

1
Using the Robot Safely
1-1 Safety information
1-1
1-1 Safety information
To ensure correct and safe use of MISUMI industrial robots, carefully read this manual and
make yourself well acquainted with the contents. FOLLOW THE WARNINGS, CAUTIONS
AND INSTRUCTIONS included in this manual. Failure to take necessary safety measures
or mishandling due to not following the instructions in this manual may result in trouble
or damage to the robot and injury to personnel (robot operator or service personnel)
including fatal accidents.
Warning symbols and signal words used in this manual are classified as explained below.
Make sure that you fully understand the meaning of each symbol and comply with the
instructions.
wDANGER
FAILURE TO FOLLOW DANGER INSTRUCTIONS WILL RESULT IN SEVERE INJURY OR
DEATH TO THE ROBOT OPERATOR, BYSTANDERS OR PERSONS INSPECTING OR
REPAIRING THE ROBOT.
wWARNING
FAILURE TO FOLLOW WARNING INSTRUCTIONS COULD RESULT IN SEVERE INJURY
OR DEATH TO THE ROBOT OPERATOR, BYSTANDERS OR PERSONS INSPECTING
OR REPAIRING THE ROBOT.
cCAUTION
Failure to follow CAUTION instructions may result in injury to the robot
operator, bystanders or persons inspecting or repairing the robot, or
damage to the robot and/or robot controller.
nNOTE
Explains the key point in the operation in a simple and clear manner.
Reference
Gives useful information related to the robot operation.

Using the Robot Safely
1
1-1 Safety information
1-2
Refer to the user's manual by any of the following methods to operate or adjust the robot
safely and correctly.
1.Operate or adjust the robot while referring to the printed version of the user's
manual (available for an additional fee).
2.Operate or adjust the robot while viewing the CD-ROM version of the user's
manual on your computer screen.
3.Operate or adjust the robot while referring to a printout of the necessary pages
from the CD-ROM version of the user's manual.
It is not possible to list all safety items in detail within the limited space of
this manual. So it is essential that the user have a full knowledge of basic
safety rules and also that the operator makes correct judgments on safety
procedures during operation. For specific safety information and standards,
refer to the applicable local regulations and comply with the instructions.
This manual and warning labels supplied with or affixed to the robot are
written in English. Unless the robot operators or service personnel
understand English, do not permit them to handle the robot.
* Cautions regarding the official language of EU countries
For equipment that will be installed in EU countries, the language used for the
user's manuals, CE declarations, and operation screen characters is English only.
Warning labels only have pictograms or else include warning messages in English.
In the latter case, Japanese messages might be added.

1
Using the Robot Safely
1-2 Essential precautions
1-3
1-2 Essential precautions
Particularly important cautions for handling or operating the robot are described below. In
addition, precautions during installation, operation, inspection and maintenance are also
provided in each chapter. Be sure to comply with these instructions to ensure safe use of
the robot.
(1) Observe the following cautions during automatic operation.
• Install a safeguard (safety enclosure) to keep any person from entering within the
movement range of the robot and suffering injury due to being struck by moving
parts.
• Install a safety interlock that triggers emergency stop when the door or panel is
opened.
• Install a safety enclosure so that no one can enter inside except from doors or
panels equipped with safety interlocks.
• Warning labels 1 are supplied with the robot and should be affixed to conspicuous
spots on doors or panels of the safety enclosure.
wDANGER
SERIOUS INJURY OR DEATH WILL RESULT FROM IMPACT WITH MOVING ROBOT.
• KEEP OUTSIDE OF GUARD DURING OPERATION.
• LOCK OUT POWER BEFORE APPROACHING ROBOT.
Warning label 1
DANGER
Serious injury or death
will result from impact
with moving robot.
•Keep outside of guard
during operation.
• Lock out power before
approaching robot.
(2) Use caution to prevent hands or fingers from being pinched or crushed.
• Use caution to prevent hands or fingers from being pinched or crushed by the
moving parts when carrying the robot or during teaching.
• Warning labels 2 are supplied with the robot and should be affixed to the robot or
conspicuous spots near the robot.
wWARNING
MOVING PARTS CAN PINCH OR CRUSH.
KEEP HANDS AWAY FROM ROBOT ARMS.

Using the Robot Safely
1
1-2 Essential precautions
1-4
Warning label 2
Moving parts can
pinch or crush.
Keep hands away
from robot arms.
WARNING
(3) Follow the instructions on warning labels and in this manual.
• Be sure to read the warning labels and this manual carefully and make sure you
thoroughly understand their contents before attempting installation and operation
of the robot.
• Before starting robot operation, be sure to reread the procedures and cautions
relating to your work as well as descriptions in this chapter (Chapter 1, "Using the
Robot Safely").
• Never install, adjust, inspect or service the robot in any manner that does not
comply with the instructions in this manual.
• Warning labels 3 are supplied with the robot and should be affixed to the robot or
conspicuous spots near the robot.
wWARNING
IMPROPER INSTALLATION OR OPERATION CAN RESULT IN SERIOUS INJURY OR
DEATH.
READ THE USER'S MANUAL AND ALL WARNING LABELS BEFORE OPERATION.
Warning label 3
Improper installation or operation
can result in serious injury or
death. Read user's(owner’s)
manual and all warning labels
before operation.
WARNING

1
Using the Robot Safely
1-2 Essential precautions
1-5
(4) Do not remove, alter or stain the warning labels.
wWARNING
IF WARNING LABELS ARE REMOVED OR DIFFICULT TO SEE, THEN ESSENTIAL
PRECAUTIONS MIGHT NOT BE TAKEN, RESULTING IN ACCIDENTS.
• DO NOT REMOVE, ALTER OR STAIN THE WARNING LABELS ON THE ROBOT.
• DO NOT ALLOW THE WARNING LABELS TO BE HIDDEN BY DEVICES INSTALLED
ONTO THE ROBOT BY THE USER.
• PROVIDE PROPER LIGHTING SO THAT THE SYMBOLS AND INSTRUCTIONS ON
THE WARNING LABELS CAN BE CLEARLY SEEN EVEN FROM OUTSIDE THE
SAFETY ENCLOSURE.
(5) Do not use the robot in environments containing inflammable gas, etc.
wWARNING
• THIS ROBOT WAS NOT DESIGNED FOR OPERATION IN ENVIRONMENTS WHERE
INFLAMMABLE OR EXPLOSIVE SUBSTANCES ARE PRESENT.
• DO NOT USE THE ROBOT IN ENVIRONMENTS CONTAINING INFLAMMABLE
GAS, DUST OR LIQUIDS. EXPLOSIONS OR FIRE MIGHT OTHERWISE RESULT.
(6) Do not use the robot in locations possibly subject to electromagnetic interference,
etc.
wWARNING
AVOID USING THE ROBOT IN LOCATIONS SUBJECT TO ELECTROMAGNETIC
INTERFERENCE, ELECTROSTATIC DISCHARGE OR RADIO FREQUENCY
INTERFERENCE. MALFUNCTIONS MIGHT OTHERWISE OCCUR.
(7) Use caution when releasing the brake of a vertical use robot.
wWARNING
THE VERTICAL AXIS WILL SLIDE DOWN WHEN THE BRAKE IS RELEASED, CAUSING
A HAZARDOUS SITUATION.
• PRESS THE EMERGENCY STOP BUTTON AND PROP UP THE VERTICAL AXIS
WITH A SUPPORT STAND BEFORE RELEASING THE BRAKE.
• BE CAREFUL NOT TO LET YOUR BODY GET CAUGHT BETWEEN THE VERTICAL
AXIS AND INSTALLATION BASE WHEN RELEASING THE BRAKE TO PERFORM
DIRECT TEACH.

Using the Robot Safely
1
1-2 Essential precautions
1-6
(8) Provide safety measures for end effector (gripper, etc.).
wWARNING
• END EFFECTORS MUST BE DESIGNED AND MANUFACTURED SO THAT THEY
CREATE NO HAZARDS (FOR EXAMPLE, A WORKPIECE THAT COMES LOOSE)
EVEN IF POWER (ELECTRICITY, AIR PRESSURE, ETC.) IS SHUT OFF OR POWER
FLUCTUATIONS OCCUR.
• IF THERE IS A POSSIBLE DANGER THAT THE OBJECT GRIPPED BY THE END
EFFECTOR MAY FLY OFF OR DROP, THEN PROVIDE APPROPRIATE SAFETY
PROTECTION TAKING INTO ACCOUNT THE OBJECT SIZE, WEIGHT,
TEMPERATURE AND CHEMICAL PROPERTIES.
(9) Use caution when removing the motor. (Vertical use robots)
wWARNING
THE VERTICAL AXIS WILL SLIDE DOWN WHEN THE MOTOR IS RELEASED,
CAUSING A HAZARDOUS SITUATION.
• TURN OFF THE ROBOT CONTROLLER AND PROP UP THE VERTICAL AXIS WITH
A SUPPORT STAND BEFORE REMOVING THE MOTOR.
• BE CAREFUL NOT TO LET YOUR BODY GET CAUGHT BETWEEN THE VERTICAL
AXIS PARTS AND INSTALLATION BASE.
(10) Be careful not to touch the motor and peripheral parts when hot.
wWARNING
The motor and speed reduction gear casing are extremely hot after
automatic operation, so burns may occur if these are touched.
Before handling these parts during inspection or servicing, turn off the
controller, wait for a while and check that the parts have cooled.
(11) Take the following safety precautions during inspection of controller.
wWARNING
• WHEN YOU NEED TO TOUCH THE TERMINALS OR CONNECTORS ON THE
OUTSIDE OF THE CONTROLLER DURING INSPECTION, ALWAYS FIRST TURN OFF
THE CONTROLLER POWER SWITCH AND ALSO THE POWER SOURCE IN ORDER
TO PREVENT POSSIBLE ELECTRICAL SHOCK.
• NEVER TOUCH ANY INTERNAL PARTS OF THE CONTROLLER.
• REFER TO THE "C21/C22 ROBOT CONTROLLER USER'S MANUAL" FOR
PRECAUTIONS ON HANDLING THE CONTROLLER.

1
Using the Robot Safely
1-2 Essential precautions
1-7
(12) Consult us for corrective action when the robot is damaged or malfunctions occur.
wWARNING
IF ANY PART OF THE ROBOT IS DAMAGED OR ANY MALFUNCTION OCCURS,
CONTINUING THE OPERATION MAY BE VERY DANGEROUS. PLEASE CONSULT
YOUR MISUMI SALES OFFICE OR DEALER FOR CORRECTIVE ACTION.
Damage or Trouble Possible Danger
Damage to machine harness or robot cable Electrical shock, malfunction of robot
Damage to exterior of robot Flying outwards of damaged parts
during robot operation
Abnormal operation of robot
(positioning error, excessive vibration, etc.) Malfunction of robot
Z-axis brake trouble Dropping of load
(13) Protective bonding
wWARNING
BE SURE TO GROUND THE ROBOT AND CONTROLLER TO PREVENT ELECTRICAL
SHOCK.
(14) Be sure to make correct parameter settings.
cCAUTION
The robot must be operated with correct tolerable moment of inertia and
acceleration coefficients according to the manipulator tip mass and
moment of inertia. If these are not correct, drive unit service life may end
prematurely, and damage to robot parts or residual vibration during
positioning may result.
(15) Follow the specified procedures when installing, adjusting or inspecting the robot.
wWARNING
ALWAYS FOLLOW THE SPECIFIED PROCEDURES WHEN INSTALLING, ADJUSTING
OR INSPECTING THE ROBOT. NEVER ATTEMPT ANY PROCEDURE NOT DESCRIBED
IN THIS MANUAL.
(16) Do not attempt any repair, parts replacement and modification.
wWARNING
DO NOT ATTEMPT ANY REPAIR, PARTS REPLACEMENT AND MODIFICATION
UNLESS DESCRIBED IN THIS MANUAL.
THESE WORKS REQUIRE TECHNICAL KNOWLEDGE AND SKILL, AND MAY ALSO
INVOLVE WORK HAZARDS.

Using the Robot Safely
1
1-2 Essential precautions
1-8
(17) Location for installing the controller and the Handy Terminal
The robot controller and the Handy Terminal should be installed at a location that is
outside the robot movement range yet where it is easy to operate and view the robot
performing tasks.
(18) Protect electrical wiring and hydraulic/pneumatic hoses as needed.
Install a cover or similar item to protect the electrical wring and hydraulic/pneumatic
hoses from possible damage.
(19) Install an operation status light.
Install an operation status light (signal light tower, etc.) at an easy-to-see position so
the operator will know whether the robot is merely stopped or is in emergency-error
stop.
(20) Clean work tools, etc.
Work tools such as welding guns and paint nozzles which are mounted in the robot
arm will preferably be cleaned automatically.
(21) Provide adequate lighting.
Make sure to provide enough lighting to ensure safety during work.
(22) Prevent the gripped object from flying outwards.
If the object or workpiece gripped by the robot might fly outward or drop and create
a hazard to the operator, then protective equipment should be installed by taking the
size, weight, temperature and chemical properties of the object into account.
(23) Draw up "work instructions" and makes sure the operator learns them well.
Decide on "work instructions" for the following items in cases where personnel
must work within the robot movement range to perform teaching, maintenance or
inspection. Make sure the workers know these "work instructions" well.
(1)
Robot operating procedures needed for tasks such as startup procedures and
handling switches
(2) Robot speeds used during tasks such as teaching
(3) Methods for workers to signal each other when two or more workers perform
tasks
(4) Steps that the worker should take when a problem or emergency occurs
(5) Steps to take after the robot has come to a stop when the emergency stop device
was triggered, including checks for cancelling the problem or error state and
safety checks in order to restart the robot.
(6) In cases other than above, the following actions should be taken as needed to
prevent hazardous situations due to sudden or unexpected robot operation or
faulty robot operation, as listed below.
1.Show a display on the operator panel

1
Using the Robot Safely
1-3 Industrial robot operating and maintenance personnel
1-9
2.Ensure the safety of workers performing tasks within the robot movement range
3.Clearly specify position and posture during work
Position and posture where worker can constantly check robot movements and
immediately move to avoid trouble if an error/problem occurs
4.Install noise prevention measures
5.Use methods for signaling operators of related equipment
6.Use methods to decide that an error has occurred and identify the type of error
Implement the "work instructions" according to the type of robot, installation
location, and type of work task.
When drawing up the "work instructions", make an effort to include opinions from
the workers involved, equipment manufacture's technicians, and workplace safety
consultants, etc.
(24) Display a sign on operation panel during work
Display an easy to understand sign or message on the Handy Terminal or operation
panel during the job task, to prevent anyone other than the operators for that job task
from mistakenly operating a start or selector switch. If needed, take other measures
such as locking the cover on the operation panel.
(25) Make daily and periodic inspections.
(1) Always make sure that daily and periodic inspections are performed, and make
a pre-work check to ensure there are no problems with the robot or related
equipment. If a problem or abnormality is found, then promptly repair it or take
other measures as necessary.
(2) When you make periodic inspections or repairs, make a record and store it for at
least 3 years.
1-3 Industrial robot operating and maintenance personnel
Operators or persons who handle the robot such as for teaching, movement check,
inspection, adjustment, and repair must receive appropriate training and also have the
skills needed to perform the job correctly and safely. They must read the user's manual
carefully to understand its contents before attempting the robot operation.
Tasks related to industrial robots (teaching, movement check, inspection, adjustment,
repair, etc.) must be performed by qualified persons who meet requirements established
by local regulations and safety standards for industrial robots.

Using the Robot Safely
1
1-4 Robot safety functions
1-10
1-4 Robot safety functions
(1) Overload detection
This function detects an overload applied to the motor and shuts off the servo power.
(2) Abnormal temperature detection
This detects an abnormal temperature rise in the controller driver and shuts off the
servo power.
The following measures should be taken when an error (overload error, abnormal
temperature error) occurs.
1.Reduce the speed.
2.Insert a "stop period" in the operation.
3.Reduce the acceleration coefficient.
(3) Soft limits
Soft limits can be set on each axis to limit the working envelope in manual operation
after return-to-origin and during automatic operation.
Note: The working envelope is the area limited by soft limits.
wWARNING
SOFT LIMITS MUST BE SET WITHIN THE MOVEMENT RANGE (MECHANICAL
STOPPER). IF THE SOFT LIMIT IS SET OUTSIDE THE MOVEMENT RANGE, THE ROBOT
AXIS MAY COLLIDE WITH THE MECHANICAL STOPPER AT HIGH SPEED, CAUSING
THE OBJECT GRIPPED BY THE END EFFECTOR TO FLY OR DROP AND THE ROBOT
TO MALFUNCTION.
(4) Mechanical stoppers
If the servo power is suddenly shut off during high-speed operation by emergency
stop or safety functions, these mechanical stoppers prevent the axis from exceeding
the movement range.
Note: The movement range is the area limited by mechanical stoppers.
wWARNING
ROBOT MOVEMENT WILL NOT STOP IMMEDIATELY AFTER THE SERVO POWER
SUPPLY IS SHUT OFF BY EMERGENCY STOP OR OTHER SAFETY FUNCTIONS.
(5) Vertical axis brake
An electromagnetic brake is installed on the vertical use robot to prevent the vertical
axis from sliding down when servo power is turned off. This brake is working when
the controller is off or the vertical axis servo power is off even when the controller is
on.
The vertical axis brake can be released with the Handy Terminal when the controller
power is turned on.