Hubner AMSH 40 K-1312 Product guide

English
Translation of the original
Operating and Assembly Instructions AMSH_ASSH_MANUAL-en_R2(2022-01-19)ID78121.docx
ID 78121
Operating and Assembly Instructions
Hollow Shaft Absolute Encoder
AMSH 40 K-1312
ASSH 40 K-13
Read the Operating and Assembly Instructions prior to
assembly, starting installation and handling!
Keep for future reference!

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Trademark
Brand names and product names are trademarks or registered trademarks of their respective owner.
Protected trademarks bearing a ™ or ® symbol are not always depicted as such in the manual.
However, the statutory rights of the respective owners remain unaffected.
Manufacturer / publisher
Johannes Hubner
Fabrik elektrischer Maschinen GmbH
Siemensstr. 7
35394 Giessen
Germany
Phone: [phone]
Fax: [phone]
Internet: www.huebner-giessen.com
E-Mail: [e-mail]
This manual has been drawn up with the utmost care and attention. Nevertheless, we cannot exclude the
possibility of errors in form and content. It is strictly forbidden to reproduce this publication or parts of this
publication in any form or by any means without the prior written permission of Johannes Hübner Fabrik
elektrischer Maschinen GmbH.
Johannes Hübner Fabrik elektrischer Maschinen GmbH is listed by Underwriters Laboratories.
UL certificates can be requested from us.
An overview of our UL devices can be found at the following link:
https://iq.ulprospector.com/info
UL model No. AMY 40 Z-XXXX
UL model No. ASY 40 Z-XXXX
Subject to errors and changes due to technical improvements.
Copyright © Johannes Hübner Fabrik elektrischer Maschinen GmbH
All rights reserved.

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Directory
1General............................................................................................................................ 5
1.1 Information about the Operating and Assembly Instructions....................................... 5
1.2 Scope of delivery ....................................................................................................... 5
1.3 Explanation of symbols.............................................................................................. 5
1.4 Disclaimer.................................................................................................................. 6
1.5 Copyright ................................................................................................................... 6
1.6 Guarantee terms........................................................................................................ 6
1.7 Customer service....................................................................................................... 6
2Safety............................................................................................................................... 6
2.1 Responsibility of the owner ........................................................................................ 6
2.2 Intended use.............................................................................................................. 6
2.3 Improper use.............................................................................................................. 7
2.4 Personnel................................................................................................................... 7
2.5 Personal protective equipment................................................................................... 7
2.6 Special dangers......................................................................................................... 7
2.6.1 Electrical current.................................................................................................... 7
2.6.2 Rotating shafts/hot surfaces.................................................................................. 7
2.6.3 Safeguarding against restart.................................................................................. 7
3Technical Data ................................................................................................................ 8
3.1 Type plate.................................................................................................................. 8
3.2 Electrical and mechanical data................................................................................... 9
3.3 Type code.................................................................................................................10
4Transport, packaging and storage ...............................................................................11
4.1 Safety instructions for transport.................................................................................11
4.2 Incoming goods inspection........................................................................................11
4.3 Packaging / disposal.................................................................................................11
4.4 Storage of packages (devices)..................................................................................11
5Installation and commissioning....................................................................................12
5.1 Safety instructions.....................................................................................................12
5.2 Technical information................................................................................................12
5.3 Required tools...........................................................................................................12
5.4 Mounting preparations ..............................................................................................13
5.5 Mounting hollow shaft type absolute encoder with feather key..................................13
5.6 Mounting hollow shaft type absolute encoder with locking element...........................15
5.7 Electrical connection and start up..............................................................................17
5.7.1 Preparing cables ..................................................................................................17
5.7.2 Electrical connection.............................................................................................17
6Dismantling....................................................................................................................19
6.1 Safety instructions.....................................................................................................19
6.2 Dismantling the absolute encoder.............................................................................19

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6.3 Connecting the encoder (electrically)........................................................................19
6.3.1 Connections .........................................................................................................19
7Connection diagram......................................................................................................20
8Faults..............................................................................................................................22
8.1 Fault table.................................................................................................................22
9Inspections.....................................................................................................................22
9.1 Safety instructions.....................................................................................................22
10Data transmission..........................................................................................................23
10.1 Maintenance information...........................................................................................24
10.2 Inspection schedule ..................................................................................................24
11Disposal..........................................................................................................................24
11.1 Disposal procedure...................................................................................................24
12Spare Parts.....................................................................................................................25
13Dimension drawings......................................................................................................26
13.1 Construction type hollow shaft design.......................................................................26

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1General
1.1 Information about the Operating and Assembly Instructions
These Operating and Assembly Instructions provide important instructions for working with the device.
They must be carefully read prior to starting all tasks, and the instructions contained herein must be
followed.
In addition, applicable local regulations for the prevention of industrial accidents and general safety
regulations must be complied with.
1.2 Scope of delivery
Hollow Shaft Absolute Encoder AMSH 40 K / ASSH 40 K, Operating and Assembly Instructions.
1.3 Explanation of symbols
Warnings are indicated by symbols in these Operating and Assembly Instructions . The warnings are
introduced by signal words that express the scope of the hazard.
The warnings must be strictly heeded; you must act prudently to prevent accidents, personal injury,
and property damage.
WARNING!
Indicates a possibly dangerous situation that can result in death or serious injury if it is not
avoided.
CAUTION!
Indicates a possibly dangerous situation that can result in minor injury if it is not
avoided.
CAUTION!
Indicates a possibly dangerous situation that can result in material damage if it is not
avoided.
NOTES!
Indicates useful tips and recommendations as well as information for efficient and trouble-
free operation.
NOTES!
Do not use a hammer or similar tool when installing the device due to the risk of damage
occurring to the bearings or coupling!
DANGER!
Life-threatening danger due to electric shock!
Indicates a life-threatening situation due to electric shock. If the safety instructions are not
complied with there is danger of serious injury or death. The work that must be executed
should only be performed by a qualified electrician.

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1.4 Disclaimer
All information and instructions in these Operating and Assembly Instructions have been provided
under due consideration of applicable guidelines, as well as our many years of experience.
The manufacturer assumes no liability for damages due to:
Failure to follow the instructions in the Operating and Assembly Instructions
Non-intended use
Deployment of untrained personnel
Opening of the device or conversions of the device
In all other aspects the obligations agreed in the delivery contract as well as the delivery conditions of
the manufacturer apply.
1.5 Copyright
NOTES!
Content information, text, drawings, graphics, and other representations are protected
by copyright and are subject to commercial property rights.
It is strictly forbidden to make copies of any kind or by any means for any purpose other
than in conjunction with using the device without the prior written agreement of the
manufacturer. Any copyright infringements will be prosecuted.
1.6 Guarantee terms
The guarantee terms are provided in the manufacturer’s terms and conditions.
1.7 Customer service
For technical information personnel is available that can be contacted by telephone, fax or email. See
manufacturer’s address on page 2.
2Safety
DANGER!
This section provides an overview of all the important safety aspects that ensure
protection of personnel, as well as safe and trouble-free device operation.
If these safety instructions are not complied with significant hazard can occur.
2.1 Responsibility of the owner
The device is used in commercial applications. Consequently the owner of the device is subject to the
legal occupational safety obligations and subject to the safety, accident prevention and environmental
protection regulations that are applicable for the device’s area of implementation.
2.2 Intended use
The device has been designed and constructed exclusively for the intended use described here.
Series AMSH 40 K / ASSH 40 K Hollow Shaft Absolute Encoders are used for measurement of
rotations, for instance of electrical and mechanical drives and shafts.
Claims of any type due to damage arising from non-intended use are excluded; the owner bears sole
responsibility for non-intended use.
For UL and CSA: For the use in NFPA 79 applications only.

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2.3 Improper use
Do not use the device in potentially explosive areas.
The device must not be subjected to mechanical loads in addition to its own weight and
unavoidable vibration and shock loads that arise during normal operations.
Examples for non-permitted mechanical loads (incomplete list):
-Fastening transport or lifting tackle to the device, for example a crane hook to lift a motor.
-Fastening packaging components to the device, for example ratchet straps, tarpaulins etc.
-Using the device as a step, for example by people to climb onto a motor.
2.4 Personnel
Installation and commissioning as well as disassembly routines must be carried out by skilled technical
staff only.
2.5 Personal protective equipment
For tasks such as assembly, disassembly or commissioning the use of personal protective equipment
such as safety footwear and protective work clothing is required.
The regulations specified by the owner and that are locally specified apply.
2.6 Special dangers
Residual risks that have been determined based on a risk assessment are cited below.
2.6.1 Electrical current
DANGER!
Life-threatening danger due to electrical shock!
There is an imminent life-threatening hazard if live parts are touched. Damage to
insulation or to specific components can pose a life-threatening hazard.
Therefore:
Immediately switch off the device and have it repaired if there is damage to the insulation
of the power supply.
De-energize the electrical equipment and ensure that all components are connected for
all tasks on the electrical equipment.
Keep moisture away from live parts. Moisture can cause short circuits.
2.6.2 Rotating shafts/hot surfaces
WARNING!
Danger of injury due to rotating shafts and hot surfaces!
Touching rotating shafts can cause serious injuries.
Therefore:
Do not reach into moving parts/shafts or handle moving parts/shafts during operation.
Close to protect from injury all access openings in flanges with the corresponding plug
screw, and provided you exposed rotating components with protective covers.
Do not open covers during operation. Prior to opening the covers ensure that all parts
have come to a standstill.
The encoder can become hot during prolonged use.
In case of contact risk of burns is existing.
2.6.3 Safeguarding against restart
DANGER!
Life-threatening danger if restarted without authorization!
When correcting faults there is danger of the power supply being switched on without
authorization.
This poses a life-threatening hazard for persons in the danger zone.
Therefore:
Prior to starting work, switch off the system and safeguard it from being switched on again.

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3Technical Data
3.1 Type plate
Example type plate:
The type plate is located on the outside of the housing and contains the following information:
Manufacturer, Address
Type, Year of construction
CE marking
Serial number (S/N)
Commission number (C/N) ID Number
Resolution Singleturn
Resolution Multiturn (not at ASSH)
Protection class
Supply voltage
Interface
Code
Certification, only devices with UL
QR-Code

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3.2 Electrical and mechanical data
Connection data
Supply voltage
12…30 V DC
For UL und CSA Class 2 supplied
No-load power consumption
approx. 1 W
Resolution singleturn
Max. 13 bit (8192 steps per revolution) see type plate
Resolution multiturn
Max. 12 bit (4096 revolutions) see type plate
Data format
SSI, binary/gray code (see type plate)
SSI-Interface
Clock input
RS 422 / 5V
Input current
5 mA
Clock frequency
80kHz … 1MHz
Clock rate/transmission
25 / 13 (multiturn / singlelturn)
SSI –time out
> 30 µs (without data repetition)
< 20 µs (with data repetition)
Data interface
RS 422 / 5V
Control signals
V/R, Z (input)
5…30V / 5mA
State (output)
HTL
Encoder temperature range
Standard
-25°C…+ 85°C
For UL and CSA -25°C…+ 70°C
Protection class
acc. to
DIN EN 60529
Sealing
Permissible
speed
Rotor moment of
inertia
Breakaway torque
IP66
with labyrinth seal
≤4000 rpm
(*) ≤ 3000 rpm
approx. 1325 gcm²
approx. 10 Ncm
IP66
with axial shaft
seal
≤2000 rpm
(*) ≤ 2000 rpm
approx. 1175 gcm²
approx. 25 Ncm
IP66
with radial shaft
seal (for special
applications, e.g.
wet areas in
rolling mills)
≤2000 rpm
(*) ≤ 2000 rpm
approx. 1175 gcm²
approx. 30 Ncm
(UL and CSA Type 1)
(*) with isolated bearings –hybrid bearings –
Vibration resistance
DIN EN 60068-2-6 / IEC 68-2-6 (10 … 2000 Hz)
20 g (=200 m/s²)
Shock resistance
DIN EN 60068-2-27 / IEC 68-2-27 (6 ms)
150 g (=1500 m/s²)
Weight
Type AMSH 40 K / ASSH 40 K
approx. 4,2 kg
NOTES!
The hollow shaft device AMSH 40 / ASSH40 reduces the degree of protection to IP 65, if the
captive cover screw is not mounted. At maximum speed the permissible ambient temperature will
be reduced to 60°C.

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3.3 Type code
AM
S
H
J
40
K
1312
20P
Absolute encoder
M = multiturn
S = singleturn
SSI Interface
Hollow shaft design
With isolated bearings
–hybrid bearings –
Series
Connections
K = Terminal box
S = 15 pole EMC industrial plug
T = 12-pole plug M 23
Resolution (see type plate)
Singleturn 13 bit
Multiturn 12 bit (not at ASSH)
Inner diameter hollow shaft
20 P (standard)
16 K (optional)
P: feather key
K: clamping

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4Transport, packaging and storage
4.1 Safety instructions for transport
CAUTION!
Material damage caused by improper transport!
Observe the symbols and information on the packaging:
Do not throw - risk of breakage
Keep dry
Do not expose to heat above 40 °C or direct sunlight.
4.2 Incoming goods inspection
Check delivery immediately upon receipt for completeness and possible transport damage.
Inform the forwarder directly on receipt of the goods about existing transport damages (prepare
pictures for evidence).
4.3 Packaging / disposal
The packaging is not taken back and must be disposed of in accordance with the respective statutory
regulations and local guidelines.
4.4 Storage of packages (devices)
Keep dry
Keep packages dry and free from dust; protect from moisture.
Protect against heat
Protect packages from heat above 40 °C and direct sunlight.
If you intend to store the device for a longer period of time (> 6 months) we recommend you use
protective packaging (with desiccant).
NOTES!
Turn the shaft of the hollow shaft absolute encoder every 6 month to prevent the bearing
grease solidifying!

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5Installation and commissioning
5.1 Safety instructions
NOTES!
Observe the safety instructions contained in Chapter 2 when installing or working on the
device!
Personnel
Installation and commissioning must be carried out by skilled technical staff only.
5.2 Technical information
NOTES!
Do not use a hammer or similar tool when installing the device due to the risk of damage
occurring to the bearings or coupling!
Ambient temperature
The max. permissible ambient temperature depends on the speed and degree of protection of the
device, the signal frequency, the length of the signal cable and the place of installation (please refer to
chapter 3.2).
Degree of protection
To fulfill degree of protection requirements the diameter of the connection cable must correspond to
that of the cable gland (please refer to chapter 13 dimension drawings)
Deep groove ball bearings
The hollow shaft absolute encoder AMSH 40 K / ASSH 40 K is fitted with maintenance-free, greased
"for-life" deep groove bearings. Bearings must be changed by the manufacturer only. Opening the
encoder renders the guarantee null and void.
Screw retention
We recommend using Loctite®243 threadlocker (medium strength) on all fastening screws to prevent
loosening.
5.3 Required tools
Spanners: 10 mm, 13 mm, 22 mm, 24 mm
Allen keys: 5 mm
Flat-blade screwdrivers:
Assembly grease
Loctite®243 (medium strength threadlocker)

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5.4 Mounting preparations
1. Ensure all accessories are available (please refer to chapter 13 dimension drawings).
NOTES!
Fastening screws and earth cable are not included in the range of supply.
2. Preparing the place of attachment: Clean the (motor) shaft, centering, bolting surfaces and
fastening threads; check for damage. Repair any damage!
5.5 Mounting hollow shaft type absolute encoder with feather key
1. Mount adapter shaft (1) and align using dial gauge.
NOTES!
The maximum radial run-out of the adapter shaft is 0.05 mm.
If necessary, use the ball thrust adjustment screw to align the adapter shaft. Secure ball
thrust screws with Loctite® 243. Remove unused ball thrust screws or secure with Loctite®
243. Max. tightening torque for M12 approx. 25 Nm, for M16 approx. 63 Nm.
Use feather keys to DIN 6885.
Figure.1
:
7
2
3
11
6
12
9
13
5
4
8
10
1

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2. Grease lightly the adapter shaft (1).
3. Secure the torque bracket (3) to the hollow-shaft device (12) with 4 tensilock screws (2).
NOTES!
When fitting to the device is possible to align the torque bracket in four different directions.
If possible fit the device in a manner that ensures the cable gland points downwards!
Exchange the position of the cable gland (11) and the blanking plug on the opposite side,
if necessary.
4. Mount the hollow-shaft device to the adapter shaft.
The hollow shaft device must slide easily onto the adapter shaft. Never use excessive force,
otherwise the bearings may be damaged. If necessary, use emery cloth or a file to produce a better
fit between the adapter shaft and the key. Do not allow the device to hit hard against the collar of
the shaft.
5. Secure the hollow-shaft device with the hexagon socket head cap screw (6). (Fig. 1).
NOTES!
The axial tensioning disc is supplied with several hexagon head socket cap screws of
different lengths. To select the suitable hexagon head socket cap screw please refer to
the dimensioning drawings in Chapter 13
The hexagon head socket cap screws are coated with a microencapsulated adhesive as
locking agent.
6. Mount the captive cover screw (13).
7. Fastening the torque bracket:
The ideal angle of the torque bracket (3) to the link rod (7) is 90°.
Fastening without base plate:
Secure the link rod head (10) of the link rod (7) to a fixed point (for example on the motor
housing).
Fastening with base plate:
Secure the base plate (8) to a fixed point with two hexagon head screws (9), (for example on the
motor housing or the foundations).
NOTES!
Once fitted the link rod must rotate easily around the link rod heads! Failure to observe
this point may result in damage to the bearings!
NOTES!
The link heads are maintenance free. However, ensure they remain free from soiling
and paint!
NOTES!
Mount the unit when possible, so that the cable entry points downwards. If necessary, swap the
position of the cable gland (11) and the blind plug (opposite side).

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5.6 Mounting hollow shaft type absolute encoder with locking element
1. Mount adapter shaft (1) and align using dial gauge.
NOTES!
The maximum radial run-out of the adapter shaft is 0.05 mm.
If necessary, use the ball thrust adjustment screw to align the adapter shaft. Secure ball
thrust screws with Loctite® 243. Remove unused ball thrust screws or secure with Loctite®
243. Max. tightening torque for M12 approx. 25 Nm, for M16 approx. 63 Nm.
7
2
3
11
6
12
9
13
5
4
8
10
1
14
Figure.2
:

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2. Grease lightly the adapter shaft (1).
3. Slide the locking element (14) onto the adapter shaft until it stops.
4. Secure the torque bracket (3) to the hollow-shaft device (12) with 4 tensilock screws (2).
NOTES!
When fitting to the device is possible to align the torque bracket in four different directions.
If possible fit the device in a manner that ensures the cable gland points downwards!
Exchange the position of the cable gland (11) and the blanking plug on the opposite side,
if necessary.
5. Mount the hollow-shaft device to the adapter shaft.
The hollow shaft device must slide easily onto the adapter shaft. Never use excessive force,
otherwise the bearings may be damaged. If necessary, use emery cloth or a file to produce a better
fit between the adapter shaft and the key. Do not allow the device to hit hard against the collar of
the shaft.
6. Secure the hollow-shaft device with the hexagon socket head cap screw (6). (Fig. 2). Maximum
tightening torque 6 Nm.
NOTES!
The axial tensioning disc is supplied with several hexagon head socket cap screws of
different lengths. To select the suitable hexagon head socket cap screw please refer to
the dimensioning drawings in Chapter 13
The hexagon head socket cap screws are coated with a microencapsulated adhesive as
locking agent.
7. Mount the captive cover screw (13).
8. Fastening the torque bracket:
The ideal angle of the torque bracket (3) to the link rod (7) is 90°.
Fastening without base plate:
Secure the link rod head (10) of the link rod (7) to a fixed point (for example on the motor
housing).
Fastening with base plate:
Secure the base plate (8) to a fixed point with two hexagon head screws (9), (for example on
the motor housing or the foundations).
NOTES!
Once fitted the link rod must rotate easily around the link rod heads! Failure to observe
this point may result in damage to the bearings!
NOTES!
The link heads are maintenance free. However, ensure they remain free from soiling
and paint!
NOTES!
Mount the unit when possible, so that the cable entry points downwards. If necessary, swap the
position of the cable gland (11) and the blind plug (opposite side).

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5.7 Electrical connection and start up
NOTES!
You must observe applicable EMC guidelines when routing cables!
NOTES for UL and CSA!
Do only use copper cables
5.7.1 Preparing cables
1. Strip cable insulation.
2. Crimp wire-end ferrules.
5.7.2 Electrical connection
1. Open the terminal box cover (4 Fig. 1).
CAUTION!
Do not allow moisture to enter the terminal box when the cover is open!
2. Remove the cap of the cable gland (11 Fig.1).
3. Feed the cable into the terminal box trough the cable gland.
NOTES!
The signal cable shielding can be connected directly to the housing via the EMC cable
gland. A coil spring integrated in the cable gland ensures all-round contact is made with
the bare cable shielding to ensure a good shield connection. This type fo shield
connection should be preferred.
Alternatively, if equipotential bonding currents are anticipated it is possible to connect
the cable shielding to a shield terminal in the terminal box. A capacitor between the
shield terminal and the encoder housing prevents the flow of equalizing current.
To achieve an effective shielding the cable shield must also be connected in the
electrical cabinet.
4. Tighten the cable gland and blanking plugs using a spanner.
NOTES!
Prior to delivery cable glands and blanking plugs are tightened finger tight only. To ensure
that the terminal box is reliably sealed tighten all cable glands and blanking plugs before
starting up for the first time.
5. Use a spanner to tighten the cable gland until the cable is securely clamped and properly sealed.
NOTES!
Prevent lateral pulling forces acting on the cable and plugs so as not to impair the degree
of protection of the cable gland.

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6. Connect the supply voltage and signal cable (please refer to the connection diagrams, chapter 7).
CAUTION!
Do not apply supply voltage to the signal outputs, as this will destroy the device!
7. Applicable to alternative shield connection only: fit cable lug to cable shield and connect to the shield
terminal (please refer to the connection diagrams, chapter 12).
NOTES!
To achieve a good shielding effect the cable shield be kept as short as possible.
8. Close the terminal box cover.
NOTES!
Before closing the terminal box cover check and if necessary clean both seal surfaces
and the gasket.
CAUTION!
Ensure when closing the terminal box cover that no cable becomes jammed.
9. Secure earth cable to earth terminal (see dimension drawing chapter 13).

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6Dismantling
6.1 Safety instructions
Personnel
Dismantling must be carried out by skilled technical staff only.
WARNING!
Observe the safety instructions contained in Chapter 2 when dismantling the device!
NOTES!
Do not use a hammer or similar tool when installing the device due to the risk of damage
occurring to the bearings or coupling!
6.2 Dismantling the absolute encoder
To dismantling the absolute encoder follow the instructions given in chapters 5.5, and 5.7 in the
reverse order.
6.3 Connecting the encoder (electrically)
6.3.1 Connections
Cable glands are closed with a stopper to protect the devices on transport and storage.
Cable connections have to be executed according to the encoder type.
Connection diagrams have to be considered!
See connection diagram and in the terminal box.
Use of connection cables with diameter of min. 9 mm –max. 13 mm is essential to ensure the
protection class. Cable outlet should show preferably downwards.
Wiring arrangement and shielding:
(EMC measurement)
The cable shielding has to be connected on both ends!
The shield of the signal cable can be connected directly to the housing of the encoder by the cable
gland.
The common guidelines for EMC concerned cable routing have to be considered!
NOTES for UL and CSA!
Do only use copper cables

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7Connection diagram
AMSH / ASSH 40
Standard
Terminal box
AMSH / ASSH 40
PN178-440
EMC industrial plug