Mitsubishi Electronics HF-KN, HF-SN User Manual

General-Purpose AC Servo

MODEL

HF-KN

HF-SN

SERVO MOTOR INSTRUCTION MANUAL

C

Safety Instructions

Please read the instructions carefully before using the equipment.

To use the equipment correctly, do not attempt to install, operate, maintain or inspect the equipment until you have read through this Instruction Manual and appended documents carefully. Do not use the equipment until you have a full knowledge of the equipment, safety information and instructions.

In this Instruction Manual, the safety instruction levels are classified into "WARNING" and "CAUTION".

WARNING

CAUTION

Indicates that incorrect handling may cause hazardous conditions, 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.

Note that the CAUTION level may lead to a serious consequence according to conditions. Please follow the instructions of both levels because they are important to personnel safety.

What must not be done and what must be done are indicated by the following diagrammatic symbols.

Indicates what must not be done. For example, "No Fire" is indicated by .

Indicates what must be done. For example, grounding is indicated by .

In this Instruction Manual, instructions at a lower level than the above, instructions for other functions, and so on are classified into "POINT".

After reading this Instruction Manual, keep it accessible to the operator.

A - 1

1. To prevent electric shock, note the following

WARNING

Before wiring and inspections, turn off the power and wait for 15 minutes or more until the charge lamp turns off. Otherwise, an electric shock may occur. In addition, when confirming whether the charge lamp is off or not, always confirm it from the front of the servo amplifier.

Ground the servo amplifier and servo motor securely.

Any person who is involved in wiring and inspection should be fully competent to do the work.

Do not attempt to wire the servo amplifier and servo motor until they have been installed. Otherwise, it may cause an electric shock.

The cables should not be damaged, stressed, loaded, or pinched. Otherwise, it may cause an electric shock.

To avoid an electric shock, insulate the connections of the power supply terminals.

2. To prevent fire, note the following

CAUTION

Install the servo motor on incombustible material. Installing it directly or close to combustibles will lead to a fire.

Provide an adequate protection to prevent screws and other conductive matter, oil and other combustible matter from entering the servo motor.

3. To prevent injury, note the following

CAUTION

Only the voltage specified in the Instruction Manual should be applied to each terminal. Otherwise, a burst, damage, etc. may occur.

Connect cables to the correct terminals. Otherwise, a burst, damage, etc. may occur.

Ensure that polarity (+/-) is correct. Otherwise, a burst, damage, etc. may occur.

The servo motor, etc. may be hot while power is on or for some time after power-off. Take safety measures, e.g. provide covers, to avoid accidentally touching the parts (cables, etc.) by hand.

The surface temperature of the servo motor may exceed 100 ˚C depending on its mounting and operating conditions.

During operation, never touch the rotor of the servo motor. Otherwise, it may cause injury.

4. Additional instructions

The following instructions should also be fully noted. Incorrect handling may cause a malfunction, injury, electric shock, etc.

(1) Transportation and installation

CAUTION

Transport the products correctly according to their mass.

Stacking in excess of the specified number of product packages is not allowed.

A - 2

CAUTION

Do not carry the servo motor by holding the cables, shaft, encoder, or connector.

Install the servo amplifier and the servo motor in a load-bearing place in accordance with the Instruction Manual.

Do not get on or put heavy load on the equipment.

The equipment must be installed in the specified direction.

Do not install or operate the servo amplifier and servo motor which have been damaged or have any parts missing.

Do not block intake and exhaust areas of the servo motor with a cooling fan. Otherwise, it may cause a malfunction.

Do not drop or strike the servo motor. Isolate it from all impact loads.

Securely fix the servo motor to the machine. If being attached insecurely, the motor may come off during operation.

When handling the servo motor, be careful about the edged parts such as the corners of the servo motor.

Be sure to measure the motor vibration level with the servo motor mounted on the machine when checking the vibration level. A great vibration may cause the early damage of a bearing, encoder, and brake. The great vibration may also cause the poor connector connection or bolt looseness.

For the gain adjustment at the equipment startup, check the torque waveform and the speed waveform with a measurement device to check that no vibration occurs. If the vibration occurs due to high gain, the vibration may cause the early damage of the servo motor.

Take safety measures, e.g. provide covers, to prevent accidental access to the rotor of the servo motor during operation.

Never hit the servo motor or shaft, especially when coupling the servo motor to the machine. Otherwise, the encoder may malfunction.

Do not subject the servo motor shaft to more than the permissible load. Otherwise, the shaft may break. When you keep or use the equipment, please fulfill the following environment.

		Item	Environment
	Ambient temperature	Operation	0 ˚C to 40 ˚C (non-freezing)
		Storage	-15 ˚C to 70 ˚C (non-freezing)
	Ambient humidity	Operation	80 %RH or less (non-condensing)
		Storage	90 %RH or less (non-condensing)
		Ambience	Indoors (no direct sunlight), free from corrosive
			gas, flammable gas, oil mist, dust, and dirt
		Altitude	1000 m or less above sea level
		HF-KN series	X, Y: 49 m/s2
	Vibration resistance	HF-SN52/HF-SN102/HF-SN152	X, Y: 24.5 m/s2
		HF-SN202/HF-SN302	X: 24.5 m/s2 Y: 49 m/s2

A - 3

(2) Wiring

CAUTION

Wire the equipment correctly and securely. Otherwise, the servo motor may operate unexpectedly.

Do not install a power capacitor, surge killer, or radio noise filter (FR-BIF option) on the servo amplifier output side.

To avoid a malfunction, connect the wires to the correct phase terminals (U, V, and W) of the servo amplifier and servo motor.

Connect the servo amplifier power output (U, V, and W) to the servo motor power input (U, V, and W) directly. Do not let a magnetic contactor, etc. intervene. Otherwise, it may cause a malfunction.

Servo amplifier	U	Servo motor	Servo amplifier	U	Servo motor
U			U
V	V	M	V	V	M
W	W		W	W

Do not connect AC power supply directly to the servo motor. Otherwise, it may cause a malfunction. When the cable is not tightened enough to the terminal block, the cable or terminal block may generate heat because of the poor contact. Be sure to tighten the cable with specified torque.

(3) Test run and adjustment

CAUTION

Before operation, check the parameter settings. Improper settings may cause some machines to operate unexpectedly.

Never make a drastic adjustment or change to the parameter values as doing so will make the operation unstable.

(4) Usage

CAUTION

When it is assumed that a hazardous condition may occur due to a power failure or product malfunction, use a servo motor with an external brake to prevent the condition.

Do not scratch the coated surface with hard objects nor clean the coated surface with an organic solvent. Doing so may scuff the surface.

Do not disassemble, repair, or modify the equipment.

Use the servo amplifier with the specified servo motor.

The electromagnetic brake on the servo motor is designed to hold the motor shaft and should not be used for ordinary braking.

For such reasons as service life and mechanical structure (e.g. where a ball screw 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.

A - 4

(5) Corrective actions

CAUTION

When it is assumed that a hazardous condition may occur due to a power failure or product malfunction, use a servo motor with an electromagnetic brake or external brake to prevent the condition.

Configure an electromagnetic brake circuit so that it is activated also by an external EMG stop switch.

Contacts must be opened when ALM	Contacts must be opened
(Malfunction) or MBR (Electromagnetic	with the EMG stop switch.
brake interlock) turns off.

Servo motor

	RA
B	24 V DC

Electromagnetic brake

When any alarm has occurred, eliminate its cause, ensure safety, and deactivate the alarm before restarting operation.

Provide an adequate protection to prevent unexpected restart after an instantaneous power failure.

(6) Storage

CAUTION

Note the followings when storing the servo motor for an extended period of time (guideline: three or more months).

Always store the servo motor indoors in a clean and dry place.

If it is stored in a dusty or damp place, make adequate provision, e.g. cover the whole product.

If the insulation resistance of the winding decreases, check how to store the equipment.

Though the motor is rust-proofed before shipment using paint or rust prevention oil, rust may be produced depending on the storage conditions or storage period.

If the servo motor is to be stored for longer than six months, apply rust prevention oil again especially to the machined surfaces of the shaft, etc.

Before using the product after storage for an extended period of time, hand-turn the servo motor output shaft to confirm that nothing is wrong with the servo motor. When the servo motor is equipped with an electromagnetic brake, make the above check after releasing the electromagnetic brake with the brake power supply.

When the product has been stored for an extended period of time, contact your local sales office.

(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 - 5

DISPOSAL OF WASTE

Please dispose a servo motor and other options according to your local laws and regulations.

«U.S. customary units»

U.S. customary units are not shown in this manual. Convert the values if necessary according to the following table.

Quantity		SI (metric) unit		U.S. customary unit
Mass	1	[kg]	2.2046	[lb]
Length	1	[mm]	0.03937 [in]
Torque	1	[N•m]	141.6 [oz•in]
Moment of inertia	1	[(× 10-4 kg•m2)]	5.4675	[oz•in2]
Load (thrust load/axial load)	1	[N]	0.2248	[lbf]
Temperature	N [°C] × 9/5 + 32		N [°F]

A - 6

		CONTENTS
1. INTRODUCTION			1- 1 to 1- 4
1.1	Rating plate.......................................................................................................................................		1- 1
1.2	Parts identification.............................................................................................................................		1- 1
1.3	Electromagnetic brake ......................................................................................................................		1- 2
1.4	Servo motor shaft shapes.................................................................................................................		1- 4
2. INSTALLATION			2- 1 to 2- 8
2.1	Mounting direction.............................................................................................................................		2- 2
2.2	Load mounting/dismounting precautions..........................................................................................		2- 3
2.3	Permissible load for the shaft ...........................................................................................................		2- 4
2.4	Protection from oil and water ............................................................................................................		2- 4
2.5	Cable.................................................................................................................................................		2- 5
2.6	Servo motor with oil seal...................................................................................................................		2- 5
2.7	Inspection items................................................................................................................................		2- 6
2.8	Parts having service lives .................................................................................................................		2- 6
2.9	Machine accuracies ..........................................................................................................................		2- 7
3. CONNECTORS USED FOR SERVO MOTOR WIRING			3- 1 to 3- 6
3.1	Selection of connectors ....................................................................................................................		3- 1
3.2	Wiring connectors (connector configurations A/B/C)........................................................................		3- 2
3.3	Wiring connectors (connector configurations D/E/F/G)....................................................................		3- 3
4. CONNECTION OF SERVO AMPLIFIER AND SERVO MOTOR			4- 1 to 4- 8
4.1	Connection instructions ....................................................................................................................		4- 2
4.2	Wiring................................................................................................................................................		4- 3
4.2.1		HF-KN series servo motor..........................................................................................................	4- 3
4.2.2		HF-SN series servo motor..........................................................................................................	4- 5
4.3	Selection example of wires ...............................................................................................................		4- 7
5. WIRING OPTION			5- 1 to 5-22
5.1	Cable/connector sets ........................................................................................................................		5- 1
5.1.1 Combinations of cable/connector sets.......................................................................................			5- 2
5.1.2 Cable and connector list.............................................................................................................			5- 3
5.2	Encoder cable/connector sets ..........................................................................................................		5- 6
5.3	Servo motor power cable.................................................................................................................		5-17
5.4	Electromagnetic brake cable ...........................................................................................................		5-19
5.5	Wires for option cables ....................................................................................................................		5-20
6. HF-KN SERIES			6- 1 to 6-16
6.1	Model designation.............................................................................................................................		6- 1
6.2	Combination list of servo motors and servo amplifiers.....................................................................		6- 1
6.3	Standard specifications.....................................................................................................................		6- 2
6.3.1		Standard specifications list.........................................................................................................	6- 2

1

6.3.2		Torque characteristics................................................................................................................	6- 3
6.4	Electromagnetic brake characteristics..............................................................................................		6- 4
6.5	Servo motors with special shafts ......................................................................................................		6- 5
6.5.1 Key shaft (with 2 round end key) ...............................................................................................			6- 5
6.5.2		D cut shaft ..................................................................................................................................	6- 5
6.6	Servo motor with oil seal...................................................................................................................		6- 6
6.7	Mounting connectors ........................................................................................................................		6- 6
6.8	Dimensions .......................................................................................................................................		6- 8
6.8.1 Standard (without an electromagnetic brake) ............................................................................			6- 8
6.8.2		With an electromagnetic brake .................................................................................................	6-12
7. HF-SN SERIES			7- 1 to 7-10
7.1	Model designation.............................................................................................................................		7- 1
7.2	Combination list of servo motors and servo amplifiers.....................................................................		7- 1
7.3	Standard specifications.....................................................................................................................		7- 2
7.3.1		Standard specifications list.........................................................................................................	7- 2
7.3.2		Torque characteristics................................................................................................................	7- 3
7.4	Electromagnetic brake characteristics..............................................................................................		7- 4
7.5	Servo motors with special shafts ......................................................................................................		7- 5
7.6	Servo motor with oil seal...................................................................................................................		7- 5
7.7	Dimensions .......................................................................................................................................		7- 6
7.7.1 Standard (without an electromagnetic brake) ............................................................................			7- 6
7.7.2		With an electromagnetic brake ..................................................................................................	7- 8
APPENDIX			App. - 1 to App. - 9
App. 1 Servo motor ID codes ..........................................................................................................			App.- 1
App. 2 Manufacturer list ..................................................................................................................			App.- 1
App. 3 Compliance with the CE marking.........................................................................................			App.- 2
App. 4 Compliance with UL/CSA standard .....................................................................................			App.- 3
App. 5 Selection example of servo motor power cable...................................................................			App.- 4
App. 6 Connector dimensions .........................................................................................................			App.- 5

2

1. INTRODUCTION

1. INTRODUCTION

1.1 Rating plate

			Model
			Input power and insulation class
			Rated output and applied standard
			Rated speed and mass
(Note 2)			Serial number (Note 1) and IP rating

Note 1. Production year and month of the servo motor are indicated in a serial number on the rating plate.

The year and month of manufacture are indicated by the last two digits of the year and one digit of the month [1 to 9, X (10), Y (11), and Z (12)].

For July 2012, the Serial No. is like, "SER. _ _ _ _ _ _ _ _ _ 127".

2.Products approved by Certification Bodies are marked. The marks depends on the Certification Bodies.

1.2 Parts identification

(1) HF-KN series servo motor

Power cable (Note 1, 2)

Power lead (U/V/W)

Grounding lead

Servo motor shaft

Encoder cable (Note 1)

Encoder

Note 1. The encoder cable and power supply cable are options.

2.An electromagnetic brake cable is separately required for the servo motor with an electromagnetic brake.

(2) HF-SN series servo motor

Power supply connector (Note)

Power supply (U/V/W) Encoder connector

Grounding ( )

Encoder

Servo motor shaft

Note. The servo motor with an electromagnetic brake has the electromagnetic brake connector separately.

1 - 1

1. INTRODUCTION

1.3 Electromagnetic brake

The electromagnetic brake is provided to prevent a drop at a power failure or servo alarm occurrence during vertical drive or to hold a shaft at a stop. Do not use it for normal braking (including braking at servo-lock).

The electromagnetic brake has a time lag. Use the electromagnetic brake so that servo motor control starts after the electromagnetic brake has completely opened.

Be sure to check the operation delay time with a real machine. CAUTION Configure an electromagnetic brake circuit so that it is activated also by an

external EMG stop switch.

For details of the circuit configuration and timing chart, refer to each servo amplifier instruction manual.

While the electromagnetic brake is opened, the motor may be raised to high temperature regardless of driving.

The life will be shorten under sudden acceleration/deceleration conditions.

The servo motor with an electromagnetic brake can be used to prevent a drop in vertical lift applications or to ensure double safety at an emergency stop, for example. When operating the servo motor, supply power to the electromagnetic brake to release the brake. Switching power off enables the brake.

(1)Electromagnetic brake power supply

Prepare the following power supply for use with the electromagnetic brake only. The electromagnetic brake terminals (B1 and B2) have no polarity.

B1

Switch

24 V DC

power supply for VAR U B electromagnetic brake

B2

Electromagnetic brake

24 V DC

or power supply for electromagnetic brake

B1

Switch

VAR U B

B2

Electromagnetic brake

The surge absorber (VAR) must be installed between B1 and B2. For the selection and example of surge absorbers, refer to "Electromagnetic brake characteristic" in the chapter of each servo motor series.

When you use a diode for a surge absorber, the electromagnetic braking time will be longer.

(2)Sound generation

Though the brake lining may rattle during operation, it poses no functional problem.

If braking sounds, it may be improved by setting the machine resonance suppression filter in the servo amplifier parameters. For details, refer to each servo amplifier instruction manual.

1 - 2

1. INTRODUCTION

(3)Selection of surge absorbers for electromagnetic brake circuit

The following shows an example how to select a varistor with a surge absorber.

(a) Selection conditions

Item	Condition					Relay
Electromagnetic brake	R [Ω]: Resistance
specification	L [H]: Inductance
	Vb [V]: Power supply voltage					24 V DC
Desired suppression	Vs [V] or less
voltage
Durable surge	N times
application time

U Varistor

Brake coil

(b)Tentative selection and verification of surge absorber

1)Maximum allowable circuit voltage of varistor

Tentatively select a varistor whose maximum allowable voltage is larger than Vb [V].

2)Brake current (Ib)

Vb

Ib = R [A]

3)Energy (E) generated by brake coil

E = L × lb2 [J] 2

4)Varistor limit voltage (Vi)

From the energy (E) generated in the brake coil and the varister characteristic diagram, calculate the varistor limit voltage (Vi) when the brake current (Ib) flows into the tentatively selected varistor during opening of the circuit.

Vi is favorable when the varistor limit voltage (Vi) [V] is smaller than the desired suppressed voltage (Vs) [V].

If Vi is not smaller than Vs, reselect a varistor or improve the withstand voltage of devices.

5)Surge current width (τ)

Given that the varistor absorbs all energies, the surge current width (τ) will be as follows.

E

τ = Vi × lb [S]

6) Examining surge life of varister

From the varistor characteristic diagram, find the guaranteed current value (Ip) in which the number of the surge application life is N at the surge current width (τ). Calculate the guaranteed current value (Ip) ratio to brake current (Ib).

If an enough margin is ensured for Ip/Ib, the number of the surge application life N [time] can be considered as favorable.

(4) Others

A leakage magnetic flux will occur at the shaft end of the servo motor equipped with an electromagnetic brake. Note that chips, screws and other magnetic substances are attracted.

1 - 3

1. INTRODUCTION

1.4 Servo motor shaft shapes

In addition to the straight shaft, the key shaft and D cut shaft are available as the servo motor shafts. The key shaft and D cut shaft cannot be used in very frequent start/stop applications.

Since we cannot warrant the servo motor against fracture and similar accidents attributable to a loose key, use a friction coupling, etc. when coupling the shaft with a machine.

The shaft shape of the standard servo motor changes depending on the series and capacity. Refer to the chapter of the servo motor series.

A
	A
A	Shaft section view AA
	A	Shaft section view AA

Key shaft (with 2 round end key)

Key shaft (without key)

D cut shaft

Straight shaft

1 - 4

2. INSTALLATION

2. INSTALLATION

WARNING To prevent electric shock, ground each equipment securely.

Stacking in excess of the specified number of product packages is not allowed. Install the equipment on incombustible material. Installing it directly or close to combustibles will lead to a fire.

Install the servo amplifier and the servo motor in a load-bearing place in accordance with the Instruction Manual.

Do not get on or put heavy load on the equipment. Otherwise, it may cause injury. Use the equipment within the specified environment. For the environment, refer to the specifications of the servo motor series.

Do not drop or strike the servo motor. Isolate it from all impact loads. Do not install or operate a faulty servo motor.

Do not carry the servo motor by holding the cables, shaft, encoder, or connector. Otherwise, it may cause a malfunction or injury.

Use the eyebolts of the servo motor to only transport it. Do not use the eyebolts to transport the servo motor when it is mounted on a machine.

Securely fix the servo motor to the machine. If being attached insecurely, the motor may come off during operation, leading to injury.

Be sure to measure the motor vibration level with the servo motor mounted on the machine when checking the vibration level. A great vibration may cause the early

CAUTION damage of a bearing, encoder, and brake. The great vibration may also cause the poor connector connection or bolt looseness.

For the gain adjustment at the equipment startup, check the torque waveform and the speed waveform with a measurement device to check that no vibration occurs. If the vibration occurs due to high gain, the vibration may cause the early damage of the servo motor.

Never hit the servo motor or shaft, especially when coupling the servo motor to the machine. Otherwise, the encoder may malfunction.

When coupling a load to the servo motor, do not use a rigid coupling. Doing so can cause the shaft to break and the bearing to wear out.

Balance the load to the extent possible. Not doing so can cause vibration during servo motor operation or damage the bearings and encoder.

Take safety measures, e.g. provide covers, to prevent accidental access to the rotor of the servo motor during operation.

Do not subject the servo motor shaft to more than the permissible load. Otherwise, the shaft may break, leading to injury.

When the product has been stored for an extended period of time, contact your local sales office.

When handling the servo motor, be careful about the edged parts such as the corners of the servo motor.

2 - 1

2. INSTALLATION

2.1 Mounting direction

(1) Standard servo motor

The following table indicates the mounting direction of the standard servo motor.

Servo motor series	Mounting direction
HF-KN	May be installed in any
HF-SN	direction.

For mounting in the horizontal direction, it is recommended to set the connector section downward. When installing the servo motor vertically or obliquely, provide a connection and trap for the cable.

Cable trap

(2)Servo motor with an electromagnetic brake

The servo motor with an electromagnetic brake can also be installed in the same orientation as the standard servo motor. When the servo motor with an electromagnetic brake is installed with the shaft end at top, the brake plate may generate sliding sound but it is not a fault.

2 - 2

2. INSTALLATION

2.2 Load mounting/dismounting precautions

During assembling, the shaft end must not be hammered. Otherwise, the encoder may malfunction.

CAUTION

Do not process the shaft to avoid damage to the encoder and bearing.

(1)When mounting a pulley to the servo motor with a key shaft, use the screw hole in the shaft end. To fit the pulley, first insert a double-end stud into the screw hole of the shaft, put a washer against the end face of the coupling, and insert and tighten a nut to force the pulley in.

Servo motor

Double-end stud

Nut

Washer

Pulley

(2)For the shaft without a key, use a friction coupling or the like.

(3)When removing the pulley, use a pulley remover to protect the shaft from hard load and or impact.

(4)To ensure safety, fit a protective cover or the like on the rotary area, such as the pulley, mounted to the shaft.

(5)When a threaded shaft end part is needed to mount a pulley on the shaft, please contact your local sales office.

(6)The direction of the encoder on the servo motor cannot be changed.

(7)When mounting the servo motor, use spring washers, etc. and fully tighten the bolts so that they do not become loose due to vibration.

2 - 3

2. INSTALLATION

2.3 Permissible load for the shaft

CAUTION	Do not use a rigid coupling as it may apply excessive bending load to the shaft of
	the servo motor, leading the shaft to break and the bearing to wear out.

For the permissible shaft load specific to the servo motor, refer to the chapter of the servo motor series.

(1)Use a flexible coupling and adjust the misalignment of the shaft to less than the permissible radial load.

(2)When using a pulley, sprocket or timing belt, select a diameter that will fit into the permissible radial load.

(3)Excess of the permissible load can cause the bearing life to reduce and the shaft to break.

(4)The load indicated in this section is static load in a single direction and does not include eccentric load. Make eccentric load as small as possible. Not doing so can cause the servo motor to be damaged.

2.4 Protection from oil and water

Provide adequate protection to prevent foreign matter, such as oil from entering the servo motor shaft. When installing the servo motor, consider the items in this section.

(1) Do not use the direct drive motor with its cable soaked in oil or water.

Cover

Servo motor

Oil/water pool

Capillary phenomenon

(2)When the servo motor is to be installed with the shaft end at top, provide measures so that it is not exposed to oil and water entering from the machine side, gear box, etc.

Gear

Lubricating oil

Servo motor

(3)If oil such as coolant drops on the servo motor, the sealant, packing, cable and others may be affected depending on the oil type.

(4)In the environment where the servo motor is exposed to oil mist, oil, water, grease and/or like, a standard specifications servo motor may not be usable. Please contact your local sales office.

2 - 4

2. INSTALLATION

2.5 Cable

The power supply and encoder cables routed from the servo motor should be fixed to the servo motor to keep them unmovable. Otherwise, the cable may disconnect. In addition, do not modify the connectors, terminals and others at the ends of the cables.

2.6 Servo motor with oil seal

For the servo motor with oil seal, the oil seal prevents the entry of oil into the servo motor. Make sure to install it according in this section.

The functions have no problem even if the servo motor with oil seal may sound during operation.

(1)Pressure and oil level

Install the servo motor horizontally, and set the oil level in the gear box to be lower than the oil seal lip always. If the oil level is higher than the oil seal lip, the oil that entered into the servo motor may cause any failure.

GearShaft

Servo motor

Height above oil level h

Lip

Oil seal

High pressure against the oil seal causes the abrasion and makes the life be short. Keep constant internal pressure by equipping a ventilator to the gear box.

(2)Temperature

High temperature against the oil seal lip makes the life be short. Avoid exposing the oil seal lip to high temperature oil since applicable temperature of the material is up to 100 ˚C and temperature of the oil seal lip rises within 10 ˚C to 15 ˚C at maximum rotation.

2 - 5

2. INSTALLATION

2.7 Inspection items

Before starting maintenance and/or inspection, turn off the power and wait for 15 minutes or more until the charge lamp turns off. Otherwise, an electric shock may

WARNING occur. In addition, when confirming whether the charge lamp is off or not, always confirm it from the front of the servo amplifier.

To avoid an electric shock, only qualified personnel should attempt inspections. For repair and parts replacement, contact your local sales office.

CAUTION Do not disassemble and/or repair the equipment on customer side.

It is recommended that the following points periodically be checked.

(1)Check the bearings, brake section, etc. for unusual noise.

(2)Check the cables and the like for scratches or cracks. Especially when the cable is movable, perform periodic inspections according to operating conditions.

(3)Check the servo motor shaft and coupling for misalignment.

(4)Check the power supply connector and encoder connector tightening screws for looseness.

2.8 Parts having service lives

Service lives of the following parts are listed below. However, the service life vary depending or operating methods and environment. If any fault is found in the parts, they must be replaced immediately regardless of their service lives. For parts replacement, please contact your local sales office.

Part name	Life guideline
Bearings	20,000 hours to
	30,000 hours
Encoder	20,000 hours to
	30,000 hours
Oil seal	5000 hours

(1)Bearings

When the motor is run at rated speed under rated load, bearings should be exchanged in 20,000 to 30,000 hours as a guideline. This differs on the operating conditions. The bearings must also be changed if unusual noise or vibration is found during inspection.

(2)Oil seal

Oil seals must be changed in 5,000 hours of operation at rated speed as a guideline. They must also be changed if oil leakage, etc. is found during inspection.

The functions have no problem even if an oil seal may sound during operation.

2 - 6

2. INSTALLATION

2.9 Machine accuracies

The following table indicates the machine accuracies of the servo motor around the output shaft and mounting. (except the optional products)

Accuracy [mm]							Measuring				Flange size
								Less than
							position						130			176
										100
Runout of flange surface to output							a)	0.05			0.06				0.08
shaft
Runout of fitting OD of flange surface							b)	0.04			0.04				0.06
Runout of output shaft end							c)	0.02			0.02				0.03
			a)
					A

b) A

A

2 - 7

2. INSTALLATION

MEMO

2 - 8

3. CONNECTORS USED FOR SERVO MOTOR WIRING

3. CONNECTORS USED FOR SERVO MOTOR WIRING

POINT

The IP rating indicated is the connector's protection against ingress of dust and water when the connector is connected to a servo amplifier or servo motor. If the IP rating of the connector, servo amplifier and servo motor vary, the overall IP rating depends on the lowest IP rating of all components.

3.1 Selection of connectors

Use the connector configuration products given in the table as the connectors for connection with the servo motor. Refer to section 3.2 and 3.3 for the compatible connector configuration products.

(1) HF-KN series

Encoder connector		Electromagnetic	Power supply connector
		brake connector
Servo motor			Wiring connector
		For encoder	For power supply	For electromagnetic
				brake
HF-KN_		Connector	Connector	Connector
		configuration A	configuration B	configuration C

(2) HF-SN series

Encoder connector

Power supply connector		Electromagnetic brake connector
Servo motor		Wiring connector
	For encoder	For power supply	For electromagnetic
			brake
HF-SN52/HF-SN102/		Connector
HF-SN152	Connector	configuration E	Connector
HF-SN202/HF-SN302	configuration D	Connector	configuration F
		configuration G

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3. CONNECTORS USED FOR SERVO MOTOR WIRING

3.2 Wiring connectors (connector configurations A/B/C)

The connectors in this section comply with UL/CSA standards.

	Connector	Feature	Connector	Crimping tool	Servo motor encoder
	configuration				connector (Note)
			Connector: 2174053-1	For ground clip: 1596970-1	1674339-1
	A (for encoder)	IP65		For receptacle contact: 1596847-1
			(TE Connectivity)		(TE Connectivity)
				(TE Connectivity)

Note. The connector to be mated.

	Connector	Feature	Connector	Crimping tool	Servo motor power supply
	configuration				connector (Note)
			Connector: KN4FT04SJ1-R
			HOOD/SOCKET
	B (for power	IP65	INSULATOR/BUSHING/	CT160-3-TMH5B	JN4AT04NJ1
	supply)		GROUND NUT	(JAE)	(JAE)
			Contact: ST-TMH-S-C1B-100 (A534G)
			(JAE)

Note. The connector to be mated.

	Connector				Servo motor
		Feature	Connector	Crimping tool	electromagnetic brake
	configuration
					connector (Note)
			Connector: JN4FT02SJ1-R
	C		HOOD/SOCKET
	(for	IP65	INSULATOR/BUSHING/	CT160-3-TMH5B	JN4AT02PJ1
	electromagnetic		GROUND NUT	(JAE)	(JAE)
	brake)		Contact: ST-TMH-S-C1B-100 (A534G)
			(JAE)

Note. The connector to be mated.

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3. CONNECTORS USED FOR SERVO MOTOR WIRING

3.3 Wiring connectors (connector configurations D/E/F/G)

Angle plug (one-touch connection type)

Straight plug (one-touch connection type)

Connector				Plug (DDK)				Servo motor
	Feature						Cable OD	encoder
configuration		Type	Plug	Socket contact		Contact shape	[mm]	connector
							(reference)	(Note)
				CMV1-#22ASC-S1-100		Soldering type
						Applicable wire size: AWG 20 or less
						Crimping type
			CMV1-SP10S-M1	CMV1-#22ASC-C1-100		Applicable wire size: AWG 24 to 20
						The crimping tool (357J-53162T) is	5.5 to 7.5
			(one-touch connection
						required.
			type)
						Crimping type
				CMV1-#22ASC-C2-100		Applicable wire size: AWG 28 to 24
						The crimping tool (357J-53163T) is
		Straight				required.
				CMV1-#22ASC-S1-100		Soldering type
						Applicable wire size: AWG 20 or less
						Crimping type
			CMV1-SP10S-M2	CMV1-#22ASC-C1-100		Applicable wire size: AWG 24 to 20
						The crimping tool (357J-53162T) is	7.0 to 9.0
			(one-touch connection
						required.
			type)
						Crimping type
				CMV1-#22ASC-C2-100		Applicable wire size: AWG 28 to 24
						The crimping tool (357J-53163T) is
D	IP67					required.		CM10-R10P
(for encoder)				CMV1-#22ASC-S1-100		Soldering type
						Applicable wire size: AWG 20 or less
						Crimping type
			CMV1-AP10S-M1	CMV1-#22ASC-C1-100		Applicable wire size: AWG 24 to 20
						The crimping tool (357J-53162T) is	5.5 to 7.5
			(one-touch connection
						required.
			type)
						Crimping type
				CMV1-#22ASC-C2-100		Applicable wire size: AWG 28 to 24
						The crimping tool (357J-53163T) is
		Angle				required.
				CMV1-#22ASC-S1-100		Soldering type
						Applicable wire size: AWG 20 or less
						Crimping type
			CMV1-AP10S-M2	CMV1-#22ASC-C1-100		Applicable wire size: AWG 24 to 20
						The crimping tool (357J-53162T) is	7.0 to 9.0
			(one-touch connection
						required.
			type)
						Crimping type
				CMV1-#22ASC-C2-100		Applicable wire size: AWG 28 to 24
						The crimping tool (357J-53163T) is
						required.

Note. The connector to be mated.

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3. CONNECTORS USED FOR SERVO MOTOR WIRING

Plug

Cable clamp Cable

Plug

Cable clamp Cable

	Connector	Feature		Plug (DDK)	Cable clamp (DDK)		Servo motor power
					Cable OD		supply connector
	configuration		Type	Model		Model
					[mm] (reference)		(Note 2)
			Straight	CE05-6A18-10SD-D-BSS	8.5 to 11	CE3057-10A-2-D
		IP67		Applicable wire size: AWG 14 to 12	10.5 to 14.1	CE3057-10A-1-D
	E	EN compliant	Angle	CE05-8A18-10SD-D-BAS	8.5 to 11	CE3057-10A-2-D
				Applicable wire size: AWG 14 to 12	10.5 to 14.1	CE3057-10A-1-D	MS3102A18-10P
	(for power
				D/MS3106B18-10S
	supply)	(Note 1)	Straight
				Applicable wire size: AWG 14 to 12	14.3 or less
		General				D/MS3057-10A
				D/MS3108B18-10S	(bushing ID)
		environment	Angle
				Applicable wire size: AWG 14 to 12
	Note 1. Not comply with EN.

2. The connector to be mated.

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3. CONNECTORS USED FOR SERVO MOTOR WIRING

Angle plug (one-touch connection type)

Straight plug (one-touch connection type)

				Plug (DDK)				Servo motor
Connector	Feature						Cable OD	electromagnetic
configuration		Type	Plug	Socket contact		Contact shape	[mm]	brake
							(reference)	connector
								(Note)
				CMV1-#22BSC-S2-100		Soldering type
						Applicable wire size: AWG 16 or less
			CMV1-SP2S-S
						Crimping type	4.0 to 6.0
			(one-touch connection
						Applicable wire size: AWG 20 to 16
			type)	CMV1-#22BSC-C3-100
						The crimping tool (357J-53164T) is
						required.
				CMV1-#22BSC-S2-100		Soldering type
						Applicable wire size: AWG 16 or less
			CMV1-SP2S-M1
						Crimping type	5.5 to 7.5
			(one-touch connection
						Applicable wire size: AWG 20 to 16
			type)	CMV1-#22BSC-C3-100
						The crimping tool (357J-53164T) is
		Straight				required.
				CMV1-#22BSC-S2-100		Soldering type
						Applicable wire size: AWG 16 or less
			CMV1-SP2S-M2
						Crimping type	7.0 to 9.0
			(one-touch connection
						Applicable wire size: AWG 20 to 16
			type)	CMV1-#22BSC-C3-100
						The crimping tool (357J-53164T) is
						required.
				CMV1-#22BSC-S2-100		Soldering type
						Applicable wire size: AWG 16 or less
			CMV1-SP2S-L
						Crimping type	9.0 to 11.6
			(one-touch connection
						Applicable wire size: AWG 20 to 16
F			type)	CMV1-#22BSC-C3-100
						The crimping tool (357J-53164T) is
(for
	IP67					required.		CM10-R2P
electromag
						Soldering type
netic				CMV1-#22BSC-S2-100
						Applicable wire size: AWG 16 or less
brake)			CMV1-AP2S-S
						Crimping type	4.0 to 6.0
			(one-touch connection
						Applicable wire size: AWG 20 to 16
			type)	CMV1-#22BSC-C3-100
						The crimping tool (357J-53164T) is
						required.
				CMV1-#22BSC-S2-100		Soldering type
						Applicable wire size: AWG 16 or less
			CMV1-AP2S-M1
						Crimping type	5.5 to 7.5
			(one-touch connection
						Applicable wire size: AWG 20 to 16
			type)	CMV1-#22BSC-C3-100
						The crimping tool (357J-53164T) is
		Angle				required.
				CMV1-#22BSC-S2-100		Soldering type
						Applicable wire size: AWG 16 or less
			CMV1-AP2S-M2
						Crimping type	7.0 to 9.0
			(one-touch connection
						Applicable wire size: AWG 20 to 16
			type)	CMV1-#22BSC-C3-100
						The crimping tool (357J-53164T) is
						required.
				CMV1-#22BSC-S2-100		Soldering type
						Applicable wire size: AWG 16 or less
			CMV1-AP2S-L
						Crimping type	9.0 to 11.6
			(one-touch connection
						Applicable wire size: AWG 20 to 16
			type)	CMV1-#22BSC-C3-100
						The crimping tool (357J-53164T) is
						required.

Note. The connector to be mated.

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3. CONNECTORS USED FOR SERVO MOTOR WIRING

Plug

Cable clamp Cable

Plug

Cable clamp Cable

	Connector			Plug (DDK)	Cable clamp (DDK)		Servo motor power
		Feature			Cable OD		supply connector
	configuration		Type	Model		Model
					[mm] (reference)		(Note 2)
			Straight	CE05-6A22-22SD-D-BSS	9.5 to 13	CE3057-12A-2-D
		IP67		Applicable wire size: AWG 10 to 8	12.5 to 16	CE3057-12A-1-D
	G	EN compliant	Angle	CE05-8A22-22SD-D-BAS	9.5 to 13	CE3057-12A-2-D
				Applicable wire size: AWG 10 to 8	12.5 to 16	CE3057-12A-1-D	MS3102A22-22P
	(for power
				D/MS3106B22-22S
	supply)	(Note 1)	Straight
				Applicable wire size: AWG 10 to 8	15.9 or less
		General				D/MS3057-12A
				D/MS3108B22-22S	(bushing ID)
		environment	Angle
				Applicable wire size: AWG 10 to 8
	Note 1. Not comply with EN.

2. The connector to be mated.

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4. CONNECTION OF SERVO AMPLIFIER AND SERVO MOTOR

4. CONNECTION OF SERVO AMPLIFIER AND SERVO MOTOR

	Any person who is involved in wiring should be fully competent to do the work.
	Ground the servo motor securely.
	Do not attempt to wire the servo motor until it has been mounted. Otherwise, it
WARNING	may cause an electric shock.
	The cables should not be damaged, stressed, loaded, or pinched. Otherwise, it
	may cause an electric shock.
	To avoid an electric shock, insulate the connections of the power supply
	terminals.

Wire the equipment correctly and securely. Otherwise, the servo motor may operate unexpectedly, resulting in injury.

Connect cables to the correct terminals. Otherwise, a burst, damage, etc. may occur.

Ensure that polarity (+/-) is correct. Otherwise, a burst, damage, etc. may occur. Do not install a power capacitor, surge killer or radio noise filter (FR-BIF option) with the power line of the servo motor.

Do not modify the equipment.

CAUTION Connect the servo amplifier power output (U, V, and W) to the servo motor power input (U, V, and W) directly. Do not let a magnetic contactor, etc. intervene.

Otherwise, it may cause a malfunction.

Servo amplifier	U	Servo motor	Servo amplifier	U	Servo motor
U			U
V	V	M	V	V	M
W	W		W	W

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4. CONNECTION OF SERVO AMPLIFIER AND SERVO MOTOR

4.1 Connection instructions

To avoid a malfunction, connect the wires to the correct phase terminals (U, V, and W) of the servo amplifier and servo motor.

Do not connect AC power supply directly to the servo motor. Otherwise, it may CAUTION cause a malfunction.

Do not use the 24 V DC interface power supply for the electromagnetic brake. Always use the power supply designed exclusively for the electromagnetic brake. Otherwise, it may cause a malfunction.

POINT

Refer to chapter 5 for the selection of the encoder cable.

Refer to the chapter of the servo motor series for the selection of a surge absorber for the electromagnetic brake.

For grounding, connect the grounding lead wire from the servo motor to the protective earth (PE) terminal of the servo amplifier, and then connect the wire from the servo amplifier to the ground via the protective earth of the cabinet. Do not connect the wire directly to the protective earth of the cabinet.

Cabinet
Servo amplifier	Servo motor
PE
terminal
(Note)

Note. The number of PE terminals of the servo amplifier differs depending on the amplifier types.

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