Mitsubishi Electric ZX YN Series User manual

JZ990D43601E
How to obtain manuals
How to obtain manuals
For product manuals or documents, consult with the Mitsubishi Electric dealer
from who you purchased your product.
Registration
The company names and product names described in this manual are the
trademarks or registered trademarks of their respective companies.
Safety Precaution (Read these precautions before use.)
This manual classifies the safety precautions into two categories:
and .
Depending on the circumstances, procedures indicated by may
also cause severe injury.
It is important to follow all precautions for personal safety.
In case of trouble, in spite of our best efforts in quality control, it may be
assumed to cause continuous running state due to failure of the clutch and
the brake, and hence it is advised to pay sufficient consideration to safety
measures at the machine side.
Store this manual carefully so that it can be referred to when required, and
make sure to send it to the end user.
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
personal injury or physical damage.
Use protective cover.
The rotating elements are exposed outside, and the
hand or part of body may be injured if touching the
product. Install a protective cover, allowing smooth
ventilation, so that part of the body may not be in
contact with the machine. It is also recommended to
provide with a safety mechanism to stop the rotating
elements immediately when the cover is opened.
Mitsubishi Electric is not responsible for any damage or trouble caused by
repair, disassembly or modification of the product by any third party other than
Mitsubishi or specified agent.
For repair or disassembly services, therefore, please call the service network of
Mitsubishi.
Warranty
Exclusion of loss in opportunity and secondary loss from warranty liability
Regardless of the gratis warranty term, Mitsubishi shall not be liable for
compensation to:
(1) Damages caused by any cause found not to be the responsibility of Mitsubishi.
(2) Loss in opportunity, lost profits incurred to the user by Failures of Mitsubishi
products.
(3) Special damages and secondary damages whether foreseeable or not,
compensation for accidents, and compensation for damages to products other
than Mitsubishi products.
(4) Replacement by the user, maintenance of on-site equipment, start-up test run
and other tasks.
For safe use
This product has been manufactured as a general-purpose part for general
industries, and has not been designed or manufactured to be incorporated in a
device or system used in purposes related to human life.
Before using the product for special purposes such as nuclear power, electric
power, aerospace, medicine or passenger movement vehicles, consult with
Mitsubishi Electric.
This product has 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.
1. Cautions before use
1) The powder is contained inside, and hence never give impact or incline the
product.
2) Don't leave the product in a damp place.
3) Don't pull or tear the lead wire, and handle with care.
Never use the unit in an atmosphere in which
inflammation or explosion is expected.
While slipping, a spark may be ignited on the internal
working surface. Never use in a flammable or explosive
atmosphere with oil or grease. Enclose the main body
when using near flammable material such as cotton.
When enclosed, however, it must be noted that the
allowable heat dissipation is lowered.
Keep the product away from water, oil, and grease.
Not only the working surface but also the product main
body should be protected from water, oil, and grease. If
water, oil, or grease is on the main body, it may flow to the
working surface and may remarkably lower the torque. As
a result, the machine may not stop at the specified point
due to inertial run, or may run at an abnormal speed.
Such abnormal operation of the machine may cause injury.
Check the environments.
Never use in a place exposed to dust, high temperature,
dew condensation, rain and wind, oil mist. Don't install
directly in a place exposed to vibration or impact. Or it
may lead to damage or malfunction of the product or
deterioration of performance.
This manual confers no industrial property rights or any rights of any other kind,
nor does it confer any patent licenses. Mitsubishi Electric Corporation cannot be
held responsible for any problems involving industrial property rights which may
occur as a result of using the contents noted in this manual.
Never suspend the product by holding the leadwire.
Or the lead wire may be broken and the product may drop
to cause injury.
Hold the product itself when attaching or detaching.
If the product is not used for a long time, store the brake
at a non-humid place, or take measures to protect the
brake from moisture.
If the inside of the product is moistened, the product may
be corroded and operation may not be possible, or the
performance may be deteriorated.
2. Structure and principle of operation
ZX-YN powder brake structure is shown in Fig. 1. The drive member fixed to the shafts and the stator, which has a coil for generating a magnetic flux around the
drive member, are disposed concentrically across a powder gap.
The powder gap is filled with powder (magnetic iron powder) that transmits the torque.
When a current flows in the coil, a magnetic flux is generated as indicated by broken line in the drawing, the powder is linked like a chain along the magnetic flux,
and its coupling force generates torque corresponding to the current. When the exciting current is cut off, the magnetic flux disappears, the coupling force of the
powder is eliminated, and torque is no longer generated.
Fig. 1 ZX-YN powder brakes (representative examples)
Magnetic flux
Drive member
Powder gap
Lead wire
Exciting coil Stator
(stationary element)
Input shaft
(trotating element)
3. Assembling of clutch, brake
1) Make sure there is enough clearance when installing the product to
prevent impact and undue force from being applied to the product
during assembly work.
Especially, when inserting the shaft, make sure to fix the shaft part of
the drive member.
2) Install the brake so that the shafts become horizontal.
3) Pay sufficient attention to the height of set bolts. (The depth is 6mm in
all bolts.)
4) The voltage polarity is not specified.
Turn off the power, and make sure rotating elements
are stopped.
Never work while rotating, or it may cause electric
shock or injury. When mounting, dismounting, or
adjusting, turn off the power source, and make sure
the rotating elements are stopped still. At this time,
be careful not to have fingers or hand pinched.
Tighten bolts to specified torque, and lock securely.
Depending on the degree of tightening, the bolts may
be broken to cause injury. Using specified bolt
material, tighten bolts to specified torque, and lock
securely with adhesive, spring washer or the like as
specified. Besides, since the parts composing the
product rotate relatively to each other, the tightened
parts must be fixed securely for the safety of
operation.
The bolt strength and tightening torque are
designated in the specification.
Connect lead wires securely.
Otherwise it may lead to an electric shock.
Connect securely, both electrically and mechanically,
and insulate appropriately.
Be sure to connect a surge absorber parallel to the
exciting coil to cut off the direct current.
Cutting off the current may cause a large surge
voltage, and the surge voltage may deteriorate the
peripheral units.
For this reason, be sure to use a surge absorber,
such as a diode, varistor, and protective resister.
Use wire size suited to current capacity.
If wire of smaller current capacity is used, the
insulating coating may melt down to cause insulation
failure, possibly leading to electric shock, current
leak, or fire.
The specified current of the product is designated in
the specification.
4. Operation
If a shock is applied to the brake and brake during transportation, powder may
be scattered inside the brake. For this reason, before starting regular operation,
perform running-in while following the procedure below to collect powder into
the powder gap, if necessary.
1) Running-in procedure
Rotate the input shaft at approximately 200 r/min. for one minute and set
the excitation current to a value that is one quarter to three quarters of the
rated excitation current. Excite the brake approximately 10 times using a 5
seconds ON, 10 seconds OFF cycle.
If running-in is not adequate and powder is distributed unevenly, repeat 5
seconds ON, 10 seconds OFF cycle at rated excitation for approximately
10 times.
2) End of running-in
While the running-in is insufficient, the torque output may be low or the
torque may fluctuate, but as the running-in becomes sufficient and the
powder comes to work effectively, a stable torque corresponding to the
exciting current is produced.
After the running-in, start regular operation.
Depending on the conditions of use, the drive member surface temperature
may rise considerably. Use the brake while keeping the surface
temperature below 100°C. If the surface temperature exceeds 100°C, relax
the operation conditions, and prevent overheat of the brake.
The above-described surface temperature is a reference value. Be sure to
use the brake within the allowable heat dissipation.
(Herein, the surface temperature is mentioned on the basis of the ambient
temperature of 30°C. The allowable ambient temperature range is 0 to
40°C.)
Never touch the product during operation.
The rotating elements are exposed outside, and the hand
or part of body may be injured if touching the product.
Install a protective cover, allowing smooth ventilation, so
that the hand or fingers may not be in contact with the
machine during operation, and also a safety mechanism
to stop the rotating elements immediately when the cover
is opened.
Never increase the rotating speed more than allowable.
If the rotating speed is raised more than allowable,
vibration increases to cause breakage and scattering of
powder, and it is very dangerous. Rotate within allowable
speed, and install protective cover.
Use thermometer when measuring temperature.
Don't touch directly by hand to avoid burns. Turn off the
power source, and make sure the rotating elements are
stopped still, and measure with thermometer.
Measure promptly.
5. Torque adjustment
The relation of torque and exciting current is almost proportional as shown in
Fig. 2, and therefore by adjusting the current, the torque can be easily adjusted.
Set to a proper value in consideration of the finish of the product or working
condition.
Fig.2 Exciting current vs. torque characteristics
(representative examples)
Use within rated torque.
If used over the rated torque, not only the performance
deteriorates, but also mechanical breakage or injury may
be caused. Hence, use with rated torque. In particular, it
must be noted that a torque over the rating may be cause
even if used at the rated current, and therefore check the
current-torque characteristic, and adjust the exciting
current.
(In the course of use, the torque gradually declines, and
therefore in manufacturing, a proper allowance is
considered initially.)
Use within the allowable heat dissipation.
If used over allowable heat dissipation, the brake may be
extremely heated, and the working surface may be
extremely hot and red. As a result, a fire may be caused.
In addition, the performance may be deteriorated. Be sure
to use within the allowable heat dissipation.
0
2
4
6
8
10
12
14
16
0 0.1 0.2 0.3 0.4 0.5 0.6
Exciting current (A)
Torque (N
·
m)
ZX-1.2YN-24
Rated voltage: DC24V
ZX-0.6YN-24
ZX-0.3YN-24
0
2
4
6
8
10
12
14
16
0 0.04 0.08 0.12 0.16
Rated voltage: DC80V
Exciting current (A)
Torque (N
·
m)
ZX-1.2YN-80
ZX-0.6YN-80
ZX-0.3YN-80
6. Maintenance
Check the following items.
1) When the powder is moist, the expected performance may not be
exhibited.
Be careful not to admit water or oily material inside the brake.
In particular, if used near the gear box, the oil may invade through the
shaft, and therefore perfect oil sealing is advised.
2) Replace the product when its life is expired. (Powder and bearing can
not be replaced.)
The product replacement timing cannot be indicated clearly because
the powder life varies depending on the conditions of use (slip rotation
speed, heat dissipation). Judge the replacement timing when the torque
decreases to 70% or less of the initial value. However, it is actually
difficult to check the torque.
Even if the torque has decreased, it increases when the exciting current
increases. Therefore, if the specified torque cannot be obtained at the
rated current, replace the product.
3) Check the coupling mounting bolts and others for looseness..
7. Troubleshooting
This product is replaced with a new product when its life span terminates
(powder and bearing can not be replaced).
Mitsubishi Electric is not responsible for any damage or trouble caused by
repair, disassembly or modification of the product by any third party other
than Mitsubishi or specified agent.
Turn off the power, and make sure rotating elements
are stopped.
Never work while rotating, or it may cause injury.
When checking, turn off the power source, and make
sure the rotating elements are stopped still. At this
time, be careful not to have fingers or hand pinched.
When disposing of this product at the end of its
service life, please follow local and national guideline
for the disposal of industrial products.
Trouble Cause Remedy
Torque output is low.
Torque is not
generated by
passing exciting
current.
Insufficient running-
in.
Powder is
moistened by water
or oil.
Deterioration of
powder.
Run in again.
Change product.
Torque is generated
without passing
current.
Torque fluctuates on
every rotation.
Defective bearing.
Deterioration or
sintering of powder.
Change product.
Surface temperature
exceeds 100°C. Overload. Relax the conditions
of use.
Use thermometer when measuring temperature.
Don't touch directly by hand to avoid burns. Turn off
the power source, and make sure the rotating
elements are stopped still, and measure with
thermometer.
Measure promptly.
MODEL
ZX-YN
INSTRUCTION MANUAL
This manual describes the part names, dimensions, mounting, and specifications
of the product. Before use, read this manual and the manuals of all relevant
products fully to acquire proficiency in handling and operating the product. Make
sure to learn all the product information, safety information, and precautions.
Store this manual in a safe place so that it can be taken out and read whenever
necessary. Always forward it to the end user.
Effective May 2018
Specifications are subject to change without notice.
2006 MITSUBISHI ELECTRIC CORPORATION
Manual Number JZ990D43601
Revision E
Date May 2018

JZ990D43601E
How to obtain manuals
How to obtain manuals
For product manuals or documents, consult with the Mitsubishi Electric dealer
from who you purchased your product.
Registration
The company names and product names described in this manual are the
trademarks or registered trademarks of their respective companies.
Safety Precaution (Read these precautions before use.)
This manual classifies the safety precautions into two categories:
and .
Depending on the circumstances, procedures indicated by may
also cause severe injury.
It is important to follow all precautions for personal safety.
In case of trouble, in spite of our best efforts in quality control, it may be
assumed to cause continuous running state due to failure of the clutch and
the brake, and hence it is advised to pay sufficient consideration to safety
measures at the machine side.
Store this manual carefully so that it can be referred to when required, and
make sure to send it to the end user.
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
personal injury or physical damage.
Use protective cover.
The rotating elements are exposed outside, and the
hand or part of body may be injured if touching the
product. Install a protective cover, allowing smooth
ventilation, so that part of the body may not be in
contact with the machine. It is also recommended to
provide with a safety mechanism to stop the rotating
elements immediately when the cover is opened.
Mitsubishi Electric is not responsible for any damage or trouble caused by
repair, disassembly or modification of the product by any third party other than
Mitsubishi or specified agent.
For repair or disassembly services, therefore, please call the service network of
Mitsubishi.
Warranty
Exclusion of loss in opportunity and secondary loss from warranty liability
Regardless of the gratis warranty term, Mitsubishi shall not be liable for
compensation to:
(1) Damages caused by any cause found not to be the responsibility of Mitsubishi.
(2) Loss in opportunity, lost profits incurred to the user by Failures of Mitsubishi
products.
(3) Special damages and secondary damages whether foreseeable or not,
compensation for accidents, and compensation for damages to products other
than Mitsubishi products.
(4) Replacement by the user, maintenance of on-site equipment, start-up test run
and other tasks.
For safe use
This product has been manufactured as a general-purpose part for general
industries, and has not been designed or manufactured to be incorporated in a
device or system used in purposes related to human life.
Before using the product for special purposes such as nuclear power, electric
power, aerospace, medicine or passenger movement vehicles, consult with
Mitsubishi Electric.
This product has 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.
1. Cautions before use
1) The powder is contained inside, and hence never give impact or incline the
product.
2) Don't leave the product in a damp place.
3) Don't pull or tear the lead wire, and handle with care.
Never use the unit in an atmosphere in which
inflammation or explosion is expected.
While slipping, a spark may be ignited on the internal
working surface. Never use in a flammable or explosive
atmosphere with oil or grease. Enclose the main body
when using near flammable material such as cotton.
When enclosed, however, it must be noted that the
allowable heat dissipation is lowered.
Keep the product away from water, oil, and grease.
Not only the working surface but also the product main
body should be protected from water, oil, and grease. If
water, oil, or grease is on the main body, it may flow to the
working surface and may remarkably lower the torque. As
a result, the machine may not stop at the specified point
due to inertial run, or may run at an abnormal speed.
Such abnormal operation of the machine may cause injury.
Check the environments.
Never use in a place exposed to dust, high temperature,
dew condensation, rain and wind, oil mist. Don't install
directly in a place exposed to vibration or impact. Or it
may lead to damage or malfunction of the product or
deterioration of performance.
This manual confers no industrial property rights or any rights of any other kind,
nor does it confer any patent licenses. Mitsubishi Electric Corporation cannot be
held responsible for any problems involving industrial property rights which may
occur as a result of using the contents noted in this manual.
Never suspend the product by holding the leadwire.
Or the lead wire may be broken and the product may drop
to cause injury.
Hold the product itself when attaching or detaching.
If the product is not used for a long time, store the brake
at a non-humid place, or take measures to protect the
brake from moisture.
If the inside of the product is moistened, the product may
be corroded and operation may not be possible, or the
performance may be deteriorated.
2. Structure and principle of operation
ZX-YN powder brake structure is shown in Fig. 1. The drive member fixed to the shafts and the stator, which has a coil for generating a magnetic flux around the
drive member, are disposed concentrically across a powder gap.
The powder gap is filled with powder (magnetic iron powder) that transmits the torque.
When a current flows in the coil, a magnetic flux is generated as indicated by broken line in the drawing, the powder is linked like a chain along the magnetic flux,
and its coupling force generates torque corresponding to the current. When the exciting current is cut off, the magnetic flux disappears, the coupling force of the
powder is eliminated, and torque is no longer generated.
Fig. 1 ZX-YN powder brakes (representative examples)
Magnetic flux
Drive member
Powder gap
Lead wire
Exciting coil Stator
(stationary element)
Input shaft
(trotating element)
3. Assembling of clutch, brake
1) Make sure there is enough clearance when installing the product to
prevent impact and undue force from being applied to the product
during assembly work.
Especially, when inserting the shaft, make sure to fix the shaft part of
the drive member.
2) Install the brake so that the shafts become horizontal.
3) Pay sufficient attention to the height of set bolts. (The depth is 6mm in
all bolts.)
4) The voltage polarity is not specified.
Turn off the power, and make sure rotating elements
are stopped.
Never work while rotating, or it may cause electric
shock or injury. When mounting, dismounting, or
adjusting, turn off the power source, and make sure
the rotating elements are stopped still. At this time,
be careful not to have fingers or hand pinched.
Tighten bolts to specified torque, and lock securely.
Depending on the degree of tightening, the bolts may
be broken to cause injury. Using specified bolt
material, tighten bolts to specified torque, and lock
securely with adhesive, spring washer or the like as
specified. Besides, since the parts composing the
product rotate relatively to each other, the tightened
parts must be fixed securely for the safety of
operation.
The bolt strength and tightening torque are
designated in the specification.
Connect lead wires securely.
Otherwise it may lead to an electric shock.
Connect securely, both electrically and mechanically,
and insulate appropriately.
Be sure to connect a surge absorber parallel to the
exciting coil to cut off the direct current.
Cutting off the current may cause a large surge
voltage, and the surge voltage may deteriorate the
peripheral units.
For this reason, be sure to use a surge absorber,
such as a diode, varistor, and protective resister.
Use wire size suited to current capacity.
If wire of smaller current capacity is used, the
insulating coating may melt down to cause insulation
failure, possibly leading to electric shock, current
leak, or fire.
The specified current of the product is designated in
the specification.
4. Operation
If a shock is applied to the brake and brake during transportation, powder may
be scattered inside the brake. For this reason, before starting regular operation,
perform running-in while following the procedure below to collect powder into
the powder gap, if necessary.
1) Running-in procedure
Rotate the input shaft at approximately 200 r/min. for one minute and set
the excitation current to a value that is one quarter to three quarters of the
rated excitation current. Excite the brake approximately 10 times using a 5
seconds ON, 10 seconds OFF cycle.
If running-in is not adequate and powder is distributed unevenly, repeat 5
seconds ON, 10 seconds OFF cycle at rated excitation for approximately
10 times.
2) End of running-in
While the running-in is insufficient, the torque output may be low or the
torque may fluctuate, but as the running-in becomes sufficient and the
powder comes to work effectively, a stable torque corresponding to the
exciting current is produced.
After the running-in, start regular operation.
Depending on the conditions of use, the drive member surface temperature
may rise considerably. Use the brake while keeping the surface
temperature below 100°C. If the surface temperature exceeds 100°C, relax
the operation conditions, and prevent overheat of the brake.
The above-described surface temperature is a reference value. Be sure to
use the brake within the allowable heat dissipation.
(Herein, the surface temperature is mentioned on the basis of the ambient
temperature of 30°C. The allowable ambient temperature range is 0 to
40°C.)
Never touch the product during operation.
The rotating elements are exposed outside, and the hand
or part of body may be injured if touching the product.
Install a protective cover, allowing smooth ventilation, so
that the hand or fingers may not be in contact with the
machine during operation, and also a safety mechanism
to stop the rotating elements immediately when the cover
is opened.
Never increase the rotating speed more than allowable.
If the rotating speed is raised more than allowable,
vibration increases to cause breakage and scattering of
powder, and it is very dangerous. Rotate within allowable
speed, and install protective cover.
Use thermometer when measuring temperature.
Don't touch directly by hand to avoid burns. Turn off the
power source, and make sure the rotating elements are
stopped still, and measure with thermometer.
Measure promptly.
5. Torque adjustment
The relation of torque and exciting current is almost proportional as shown in
Fig. 2, and therefore by adjusting the current, the torque can be easily adjusted.
Set to a proper value in consideration of the finish of the product or working
condition.
Fig.2 Exciting current vs. torque characteristics
(representative examples)
Use within rated torque.
If used over the rated torque, not only the performance
deteriorates, but also mechanical breakage or injury may
be caused. Hence, use with rated torque. In particular, it
must be noted that a torque over the rating may be cause
even if used at the rated current, and therefore check the
current-torque characteristic, and adjust the exciting
current.
(In the course of use, the torque gradually declines, and
therefore in manufacturing, a proper allowance is
considered initially.)
Use within the allowable heat dissipation.
If used over allowable heat dissipation, the brake may be
extremely heated, and the working surface may be
extremely hot and red. As a result, a fire may be caused.
In addition, the performance may be deteriorated. Be sure
to use within the allowable heat dissipation.
0
2
4
6
8
10
12
14
16
0 0.1 0.2 0.3 0.4 0.5 0.6
Exciting current (A)
Torque (N
·
m)
ZX-1.2YN-24
Rated voltage: DC24V
ZX-0.6YN-24
ZX-0.3YN-24
0
2
4
6
8
10
12
14
16
0 0.04 0.08 0.12 0.16
Rated voltage: DC80V
Exciting current (A)
Torque (N
·
m)
ZX-1.2YN-80
ZX-0.6YN-80
ZX-0.3YN-80
6. Maintenance
Check the following items.
1) When the powder is moist, the expected performance may not be
exhibited.
Be careful not to admit water or oily material inside the brake.
In particular, if used near the gear box, the oil may invade through the
shaft, and therefore perfect oil sealing is advised.
2) Replace the product when its life is expired. (Powder and bearing can
not be replaced.)
The product replacement timing cannot be indicated clearly because
the powder life varies depending on the conditions of use (slip rotation
speed, heat dissipation). Judge the replacement timing when the torque
decreases to 70% or less of the initial value. However, it is actually
difficult to check the torque.
Even if the torque has decreased, it increases when the exciting current
increases. Therefore, if the specified torque cannot be obtained at the
rated current, replace the product.
3) Check the coupling mounting bolts and others for looseness..
7. Troubleshooting
This product is replaced with a new product when its life span terminates
(powder and bearing can not be replaced).
Mitsubishi Electric is not responsible for any damage or trouble caused by
repair, disassembly or modification of the product by any third party other
than Mitsubishi or specified agent.
Turn off the power, and make sure rotating elements
are stopped.
Never work while rotating, or it may cause injury.
When checking, turn off the power source, and make
sure the rotating elements are stopped still. At this
time, be careful not to have fingers or hand pinched.
When disposing of this product at the end of its
service life, please follow local and national guideline
for the disposal of industrial products.
Trouble Cause Remedy
Torque output is low.
Torque is not
generated by
passing exciting
current.
Insufficient running-
in.
Powder is
moistened by water
or oil.
Deterioration of
powder.
Run in again.
Change product.
Torque is generated
without passing
current.
Torque fluctuates on
every rotation.
Defective bearing.
Deterioration or
sintering of powder.
Change product.
Surface temperature
exceeds 100°C. Overload. Relax the conditions
of use.
Use thermometer when measuring temperature.
Don't touch directly by hand to avoid burns. Turn off
the power source, and make sure the rotating
elements are stopped still, and measure with
thermometer.
Measure promptly.
MODEL
ZX-YN
INSTRUCTION MANUAL
This manual describes the part names, dimensions, mounting, and specifications
of the product. Before use, read this manual and the manuals of all relevant
products fully to acquire proficiency in handling and operating the product. Make
sure to learn all the product information, safety information, and precautions.
Store this manual in a safe place so that it can be taken out and read whenever
necessary. Always forward it to the end user.
Effective May 2018
Specifications are subject to change without notice.
2006 MITSUBISHI ELECTRIC CORPORATION
Manual Number JZ990D43601
Revision E
Date May 2018

8. Specification
Rated voltage: DC24V
Type
Specification ZX-0.3YN-24 ZX-0.3YN-80 ZX-0.6YN-24 ZX-0.6YN-80 ZX-1.2YN-24 ZX-1.2YN-80
Torque (N•m) 3 6 12
Rated voltage (DC V) 24 80 24 80 24 80
Rated current (A) 0.4 0.12 0.4 0.12 0.5 0.16
Tightening torque(N•m) 1.3 to 1.7
Allowable rotating speed (r/min) 400
Allowable continuous heat dissipation (W) 30 45 70
9. Others
1) In the product having a three-digit figure attached to the model name such
as 001 in ZX-0.3YN-24-001, the mounting dimensions, voltage and other
conditions are special, and may differ from the description herein, but the
basic operation and handling cautions are common.
2) The structural diagrams are representative examples, and may differ
depending on the model and options including the specification. Inquire us
for details.
「电器电子产品有害物质限制使用标识要求」的表示方式
Note: This symbol mark is for China only.
含有有害6物质的名称，含有量，含有部品
本产品中所含有的有害6物质的名称，含有量，含有部品如下表
所示。
产品中有害物质的名称及含量
本表格依据SJ/T 11364的规定编制。
○:表示该有害物质在该部件所有均质材料中的含量均在GB/T
26572规定的限量要求以下。
×:表示该有害物质至少在该部件的某一均质材料中的含量超出GB/T
26572规定的限量要求。
基于中国标准法的参考规格:JIS B 1404
部件名称
有害物质
铅
(Pb)
汞
(Hg)
镉
(Cd)
六价铬
(Cr(VI))
多溴联苯
(PBB)
多溴
二苯醚
(PBDE)
电磁离
合器、
制动器
定子组装 × ○ ○ ○ ○ ○
转子组装 × ○ ○ ○ ○ ○

8. Specification
Rated voltage: DC24V
Type
Specification ZX-0.3YN-24 ZX-0.3YN-80 ZX-0.6YN-24 ZX-0.6YN-80 ZX-1.2YN-24 ZX-1.2YN-80
Torque (N•m) 3 6 12
Rated voltage (DC V) 24 80 24 80 24 80
Rated current (A) 0.4 0.12 0.4 0.12 0.5 0.16
Tightening torque(N•m) 1.3 to 1.7
Allowable rotating speed (r/min) 400
Allowable continuous heat dissipation (W) 30 45 70
9. Others
1) In the product having a three-digit figure attached to the model name such
as 001 in ZX-0.3YN-24-001, the mounting dimensions, voltage and other
conditions are special, and may differ from the description herein, but the
basic operation and handling cautions are common.
2) The structural diagrams are representative examples, and may differ
depending on the model and options including the specification. Inquire us
for details.
「电器电子产品有害物质限制使用标识要求」的表示方式
Note: This symbol mark is for China only.
含有有害6物质的名称，含有量，含有部品
本产品中所含有的有害6物质的名称，含有量，含有部品如下表
所示。
产品中有害物质的名称及含量
本表格依据SJ/T 11364的规定编制。
○:表示该有害物质在该部件所有均质材料中的含量均在GB/T
26572规定的限量要求以下。
×:表示该有害物质至少在该部件的某一均质材料中的含量超出GB/T
26572规定的限量要求。
基于中国标准法的参考规格:JIS B 1404
部件名称
有害物质
铅
(Pb)
汞
(Hg)
镉
(Cd)
六价铬
(Cr(VI))
多溴联苯
(PBB)
多溴
二苯醚
(PBDE)
电磁离
合器、
制动器
定子组装 × ○ ○ ○ ○ ○
转子组装 × ○ ○ ○ ○ ○

JZ990D43601E
How to obtain manuals
How to obtain manuals
For product manuals or documents, consult with the Mitsubishi Electric dealer
from who you purchased your product.
Registration
The company names and product names described in this manual are the
trademarks or registered trademarks of their respective companies.
Safety Precaution (Read these precautions before use.)
This manual classifies the safety precautions into two categories:
and .
Depending on the circumstances, procedures indicated by may
also cause severe injury.
It is important to follow all precautions for personal safety.
In case of trouble, in spite of our best efforts in quality control, it may be
assumed to cause continuous running state due to failure of the clutch and
the brake, and hence it is advised to pay sufficient consideration to safety
measures at the machine side.
Store this manual carefully so that it can be referred to when required, and
make sure to send it to the end user.
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
personal injury or physical damage.
Use protective cover.
The rotating elements are exposed outside, and the
hand or part of body may be injured if touching the
product. Install a protective cover, allowing smooth
ventilation, so that part of the body may not be in
contact with the machine. It is also recommended to
provide with a safety mechanism to stop the rotating
elements immediately when the cover is opened.
Mitsubishi Electric is not responsible for any damage or trouble caused by
repair, disassembly or modification of the product by any third party other than
Mitsubishi or specified agent.
For repair or disassembly services, therefore, please call the service network of
Mitsubishi.
Warranty
Exclusion of loss in opportunity and secondary loss from warranty liability
Regardless of the gratis warranty term, Mitsubishi shall not be liable for
compensation to:
(1) Damages caused by any cause found not to be the responsibility of Mitsubishi.
(2) Loss in opportunity, lost profits incurred to the user by Failures of Mitsubishi
products.
(3) Special damages and secondary damages whether foreseeable or not,
compensation for accidents, and compensation for damages to products other
than Mitsubishi products.
(4) Replacement by the user, maintenance of on-site equipment, start-up test run
and other tasks.
For safe use
This product has been manufactured as a general-purpose part for general
industries, and has not been designed or manufactured to be incorporated in a
device or system used in purposes related to human life.
Before using the product for special purposes such as nuclear power, electric
power, aerospace, medicine or passenger movement vehicles, consult with
Mitsubishi Electric.
This product has 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.
1. Cautions before use
1) The powder is contained inside, and hence never give impact or incline the
product.
2) Don't leave the product in a damp place.
3) Don't pull or tear the lead wire, and handle with care.
Never use the unit in an atmosphere in which
inflammation or explosion is expected.
While slipping, a spark may be ignited on the internal
working surface. Never use in a flammable or explosive
atmosphere with oil or grease. Enclose the main body
when using near flammable material such as cotton.
When enclosed, however, it must be noted that the
allowable heat dissipation is lowered.
Keep the product away from water, oil, and grease.
Not only the working surface but also the product main
body should be protected from water, oil, and grease. If
water, oil, or grease is on the main body, it may flow to the
working surface and may remarkably lower the torque. As
a result, the machine may not stop at the specified point
due to inertial run, or may run at an abnormal speed.
Such abnormal operation of the machine may cause injury.
Check the environments.
Never use in a place exposed to dust, high temperature,
dew condensation, rain and wind, oil mist. Don't install
directly in a place exposed to vibration or impact. Or it
may lead to damage or malfunction of the product or
deterioration of performance.
This manual confers no industrial property rights or any rights of any other kind,
nor does it confer any patent licenses. Mitsubishi Electric Corporation cannot be
held responsible for any problems involving industrial property rights which may
occur as a result of using the contents noted in this manual.
Never suspend the product by holding the leadwire.
Or the lead wire may be broken and the product may drop
to cause injury.
Hold the product itself when attaching or detaching.
If the product is not used for a long time, store the brake
at a non-humid place, or take measures to protect the
brake from moisture.
If the inside of the product is moistened, the product may
be corroded and operation may not be possible, or the
performance may be deteriorated.
2. Structure and principle of operation
ZX-YN powder brake structure is shown in Fig. 1. The drive member fixed to the shafts and the stator, which has a coil for generating a magnetic flux around the
drive member, are disposed concentrically across a powder gap.
The powder gap is filled with powder (magnetic iron powder) that transmits the torque.
When a current flows in the coil, a magnetic flux is generated as indicated by broken line in the drawing, the powder is linked like a chain along the magnetic flux,
and its coupling force generates torque corresponding to the current. When the exciting current is cut off, the magnetic flux disappears, the coupling force of the
powder is eliminated, and torque is no longer generated.
Fig. 1 ZX-YN powder brakes (representative examples)
Magnetic flux
Drive member
Powder gap
Lead wire
Exciting coil Stator
(stationary element)
Input shaft
(trotating element)
3. Assembling of clutch, brake
1) Make sure there is enough clearance when installing the product to
prevent impact and undue force from being applied to the product
during assembly work.
Especially, when inserting the shaft, make sure to fix the shaft part of
the drive member.
2) Install the brake so that the shafts become horizontal.
3) Pay sufficient attention to the height of set bolts. (The depth is 6mm in
all bolts.)
4) The voltage polarity is not specified.
Turn off the power, and make sure rotating elements
are stopped.
Never work while rotating, or it may cause electric
shock or injury. When mounting, dismounting, or
adjusting, turn off the power source, and make sure
the rotating elements are stopped still. At this time,
be careful not to have fingers or hand pinched.
Tighten bolts to specified torque, and lock securely.
Depending on the degree of tightening, the bolts may
be broken to cause injury. Using specified bolt
material, tighten bolts to specified torque, and lock
securely with adhesive, spring washer or the like as
specified. Besides, since the parts composing the
product rotate relatively to each other, the tightened
parts must be fixed securely for the safety of
operation.
The bolt strength and tightening torque are
designated in the specification.
Connect lead wires securely.
Otherwise it may lead to an electric shock.
Connect securely, both electrically and mechanically,
and insulate appropriately.
Be sure to connect a surge absorber parallel to the
exciting coil to cut off the direct current.
Cutting off the current may cause a large surge
voltage, and the surge voltage may deteriorate the
peripheral units.
For this reason, be sure to use a surge absorber,
such as a diode, varistor, and protective resister.
Use wire size suited to current capacity.
If wire of smaller current capacity is used, the
insulating coating may melt down to cause insulation
failure, possibly leading to electric shock, current
leak, or fire.
The specified current of the product is designated in
the specification.
4. Operation
If a shock is applied to the brake and brake during transportation, powder may
be scattered inside the brake. For this reason, before starting regular operation,
perform running-in while following the procedure below to collect powder into
the powder gap, if necessary.
1) Running-in procedure
Rotate the input shaft at approximately 200 r/min. for one minute and set
the excitation current to a value that is one quarter to three quarters of the
rated excitation current. Excite the brake approximately 10 times using a 5
seconds ON, 10 seconds OFF cycle.
If running-in is not adequate and powder is distributed unevenly, repeat 5
seconds ON, 10 seconds OFF cycle at rated excitation for approximately
10 times.
2) End of running-in
While the running-in is insufficient, the torque output may be low or the
torque may fluctuate, but as the running-in becomes sufficient and the
powder comes to work effectively, a stable torque corresponding to the
exciting current is produced.
After the running-in, start regular operation.
Depending on the conditions of use, the drive member surface temperature
may rise considerably. Use the brake while keeping the surface
temperature below 100°C. If the surface temperature exceeds 100°C, relax
the operation conditions, and prevent overheat of the brake.
The above-described surface temperature is a reference value. Be sure to
use the brake within the allowable heat dissipation.
(Herein, the surface temperature is mentioned on the basis of the ambient
temperature of 30°C. The allowable ambient temperature range is 0 to
40°C.)
Never touch the product during operation.
The rotating elements are exposed outside, and the hand
or part of body may be injured if touching the product.
Install a protective cover, allowing smooth ventilation, so
that the hand or fingers may not be in contact with the
machine during operation, and also a safety mechanism
to stop the rotating elements immediately when the cover
is opened.
Never increase the rotating speed more than allowable.
If the rotating speed is raised more than allowable,
vibration increases to cause breakage and scattering of
powder, and it is very dangerous. Rotate within allowable
speed, and install protective cover.
Use thermometer when measuring temperature.
Don't touch directly by hand to avoid burns. Turn off the
power source, and make sure the rotating elements are
stopped still, and measure with thermometer.
Measure promptly.
5. Torque adjustment
The relation of torque and exciting current is almost proportional as shown in
Fig. 2, and therefore by adjusting the current, the torque can be easily adjusted.
Set to a proper value in consideration of the finish of the product or working
condition.
Fig.2 Exciting current vs. torque characteristics
(representative examples)
Use within rated torque.
If used over the rated torque, not only the performance
deteriorates, but also mechanical breakage or injury may
be caused. Hence, use with rated torque. In particular, it
must be noted that a torque over the rating may be cause
even if used at the rated current, and therefore check the
current-torque characteristic, and adjust the exciting
current.
(In the course of use, the torque gradually declines, and
therefore in manufacturing, a proper allowance is
considered initially.)
Use within the allowable heat dissipation.
If used over allowable heat dissipation, the brake may be
extremely heated, and the working surface may be
extremely hot and red. As a result, a fire may be caused.
In addition, the performance may be deteriorated. Be sure
to use within the allowable heat dissipation.
0
2
4
6
8
10
12
14
16
0 0.1 0.2 0.3 0.4 0.5 0.6
Exciting current (A)
Torque (N
·
m)
ZX-1.2YN-24
Rated voltage: DC24V
ZX-0.6YN-24
ZX-0.3YN-24
0
2
4
6
8
10
12
14
16
0 0.04 0.08 0.12 0.16
Rated voltage: DC80V
Exciting current (A)
Torque (N
·
m)
ZX-1.2YN-80
ZX-0.6YN-80
ZX-0.3YN-80
6. Maintenance
Check the following items.
1) When the powder is moist, the expected performance may not be
exhibited.
Be careful not to admit water or oily material inside the brake.
In particular, if used near the gear box, the oil may invade through the
shaft, and therefore perfect oil sealing is advised.
2) Replace the product when its life is expired. (Powder and bearing can
not be replaced.)
The product replacement timing cannot be indicated clearly because
the powder life varies depending on the conditions of use (slip rotation
speed, heat dissipation). Judge the replacement timing when the torque
decreases to 70% or less of the initial value. However, it is actually
difficult to check the torque.
Even if the torque has decreased, it increases when the exciting current
increases. Therefore, if the specified torque cannot be obtained at the
rated current, replace the product.
3) Check the coupling mounting bolts and others for looseness..
7. Troubleshooting
This product is replaced with a new product when its life span terminates
(powder and bearing can not be replaced).
Mitsubishi Electric is not responsible for any damage or trouble caused by
repair, disassembly or modification of the product by any third party other
than Mitsubishi or specified agent.
Turn off the power, and make sure rotating elements
are stopped.
Never work while rotating, or it may cause injury.
When checking, turn off the power source, and make
sure the rotating elements are stopped still. At this
time, be careful not to have fingers or hand pinched.
When disposing of this product at the end of its
service life, please follow local and national guideline
for the disposal of industrial products.
Trouble Cause Remedy
Torque output is low.
Torque is not
generated by
passing exciting
current.
Insufficient running-
in.
Powder is
moistened by water
or oil.
Deterioration of
powder.
Run in again.
Change product.
Torque is generated
without passing
current.
Torque fluctuates on
every rotation.
Defective bearing.
Deterioration or
sintering of powder.
Change product.
Surface temperature
exceeds 100°C. Overload. Relax the conditions
of use.
Use thermometer when measuring temperature.
Don't touch directly by hand to avoid burns. Turn off
the power source, and make sure the rotating
elements are stopped still, and measure with
thermometer.
Measure promptly.
MODEL
ZX-YN
INSTRUCTION MANUAL
This manual describes the part names, dimensions, mounting, and specifications
of the product. Before use, read this manual and the manuals of all relevant
products fully to acquire proficiency in handling and operating the product. Make
sure to learn all the product information, safety information, and precautions.
Store this manual in a safe place so that it can be taken out and read whenever
necessary. Always forward it to the end user.
Effective May 2018
Specifications are subject to change without notice.
2006 MITSUBISHI ELECTRIC CORPORATION
Manual Number JZ990D43601
Revision E
Date May 2018

8. Specification
Rated voltage: DC24V
Type
Specification ZX-0.3YN-24 ZX-0.3YN-80 ZX-0.6YN-24 ZX-0.6YN-80 ZX-1.2YN-24 ZX-1.2YN-80
Torque (N•m) 3 6 12
Rated voltage (DC V) 24 80 24 80 24 80
Rated current (A) 0.4 0.12 0.4 0.12 0.5 0.16
Tightening torque(N•m) 1.3 to 1.7
Allowable rotating speed (r/min) 400
Allowable continuous heat dissipation (W) 30 45 70
9. Others
1) In the product having a three-digit figure attached to the model name such
as 001 in ZX-0.3YN-24-001, the mounting dimensions, voltage and other
conditions are special, and may differ from the description herein, but the
basic operation and handling cautions are common.
2) The structural diagrams are representative examples, and may differ
depending on the model and options including the specification. Inquire us
for details.
「电器电子产品有害物质限制使用标识要求」的表示方式
Note: This symbol mark is for China only.
含有有害6物质的名称，含有量，含有部品
本产品中所含有的有害6物质的名称，含有量，含有部品如下表
所示。
产品中有害物质的名称及含量
本表格依据SJ/T 11364的规定编制。
○:表示该有害物质在该部件所有均质材料中的含量均在GB/T
26572规定的限量要求以下。
×:表示该有害物质至少在该部件的某一均质材料中的含量超出GB/T
26572规定的限量要求。
基于中国标准法的参考规格:JIS B 1404
部件名称
有害物质
铅
(Pb)
汞
(Hg)
镉
(Cd)
六价铬
(Cr(VI))
多溴联苯
(PBB)
多溴
二苯醚
(PBDE)
电磁离
合器、
制动器
定子组装 × ○ ○ ○ ○ ○
转子组装 × ○ ○ ○ ○ ○