Hubner FGHJ 5 Product guide

English
Translation of the original Operating and Assembly Instructions FGHJ5_MANUAL-en_R4(2018-11-05)ID74524.docx
ID 74524
Operating and Assembly Instructions
Incremental hollow shaft encoder FGHJ 5
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
Siemensstraße 7
35394 Giessen
Germany
Phone: +49 641 / 7969-0
Fax: +49 641 / 73645
E-Mail: [e-mail]
www.huebner-giessen.com
The 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
Hubner Fabrik elektrischer Maschinen GmbH
Subject to errors and changes due to technical improvements.
Copyright © Johannes Hubner
Fabrik elektrischer Maschinen GmbH
All rights reserved.

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Directory
1General............................................................................................................................ 5
1.1 Information about the operating manual..................................................................................... 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 Personal protective equipment................................................................................................... 7
2.4 Personnel.................................................................................................................................... 7
2.5 Special dangers.......................................................................................................................... 7
2.5.1 Electrical current................................................................................................................. 7
2.5.2 Rotating shafts / Hot surfaces............................................................................................. 7
2.5.3 Safeguarding against restart............................................................................................... 7
3Technical Data ................................................................................................................ 8
3.1 Type plate................................................................................................................................... 8
3.2 Electrical and mechanical data................................................................................................... 8
3.3 Type code................................................................................................................................. 11
4Transport, packaging, and storage ..............................................................................12
4.1 Instruction for transport............................................................................................................. 12
4.2 Goods inward inspection .......................................................................................................... 12
4.3 Packaging (disposal) ................................................................................................................ 12
4.4 Storing packages (devices) ...................................................................................................... 12
5Installation and commissioning....................................................................................13
5.1 Safety instructions .................................................................................................................... 13
5.2 Mounting of the encoder (mechanically)................................................................................... 13
5.2.1 Assembly instruction for hollow shaft devices ................................................................. 13
5.3 Connecting the encoder............................................................................................................ 15
5.3.1 Connections ...................................................................................................................... 15
5.3.2 Technical notes ................................................................................................................. 15
6Disassembly...................................................................................................................16
6.1 Safety instructions .................................................................................................................... 16
6.2 Disassembly of the encoder ..................................................................................................... 16
7Troubles .........................................................................................................................17
7.1 Troubles table........................................................................................................................... 17
8Inspections.....................................................................................................................18
8.1 Safety instructions .................................................................................................................... 18
8.2 Maintenance information .......................................................................................................... 18

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8.3 Inspection schedule.................................................................................................................. 18
9Disposal..........................................................................................................................18
10Dimension drawings......................................................................................................19
11Connection Diagrams....................................................................................................23

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1General
1.1 Information about the operating manual
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 encoder FGHJ 5, 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
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 are available that can be reached per telephone, fax, email, or via
the Internet, 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 FGHJ 5 hollow shaft 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.

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2.3 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.
2.4 Personnel
Only trained, specialized personnel is allowed to perform installation, mounting, disassembly and
commissioning work.
2.5 Special dangers
Residual risks that have been determined based on a risk analysis are cited below.
2.5.1 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.
2.5.2 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.
2.5.3 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
Type plate example:
The type plate is located on the side of the housing and contains the following information:
Manufacturer, Address
Type
CE-mark
Serial number
Year of construction
Number of pulses
Degree of protection
Supply voltage
ID number
3.2 Electrical and mechanical data
Pulse rates
Account
Preferred pulse rates
(nickel disks)
1024, 2000
Pulse rates available
512, 1000, 1200, 1800, 2048, 2500
Connection data
Supply voltage
12 … 30 V DC (Option: 5 VDC)
No load-current
approx. 100 mA at 30 V (without Option)
Outputs
Differential line-driver, resistant to sustained short-
circuit, current limited, short-circuit.
Pulse height (HTL)
approx. as supply voltage
Internal resistance
50 Ωper output
Pulse height (TTL)
5 V to RS 422
Slew rate
50 V / µs

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Pulse duty factor
1 : 1 ± 5 %
Square wave displacement 0°, 90°
to 50 KHz < 3 %
to 150 KHz < 5 %
Max. frequency
0 to 100 kHz. (to 150 kHz on request)
Encoder temperature ranges
Standard
0°C …+ 70°C
Special temperature
-25°C…+ 85°C
Special output voltage 5V (TTL)
Pulse height
5V, RS422 compatible (TIA/EIA-Standard)
Supply voltage
12 … 30 V DC
Protection class
DIN EN 60529
Sealing
Mechanical
speed
Description
Breakaway
torque
IP 66
only AS
Radial shaft seal
≤1200 rpm
Protection against
dust and water spray
approx. 56…60 Ncm
IP 66
both sides
Radial shaft seal
≤1100 rpm
Protection against
dust and water spray
approx. 70 Ncm
Weight
Type K
7,5 kg

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Signal outputs
Basic version (n = pulses / revolution).
One pulse channel (basic) with n direct square
wave pulses, corresponding to the segment
division and LED monitoring output. (optional).
Option 90
2 nd pulse channel as basic version, but with
90°electrical phase shift.
Option N / N2
Marker pulse, mechanically fixed. One square
wave pulse per revolution.
Option G
Additional inverted output signals for basic and
90°channels, marker pulse puls LED check.
Option F
With 2 or 4 times as many pulses as the basic
version.
No direction of motion can be derived from the
multiple number of pulses.
Required: option 90.
Option B
Fast and precise sensing of rotational direction
at each edge of the basic and 90°channels.
Required: option 90.
Output
L
R
cw
0
1
Option
B, B2
ccw
1
0
Stillstand
0
0
Option B2
Option B2
As option B, but with standstill sensing..
Option V
Electronic pulse doubling of basic and
90°channesl by multiple evaluation.
Option L2
Power output up to 150 mA for basic channel,
90° channel and the corresponding inverted
signals.
Option J
Reduced rotational frequency modulation by
means of optically adjusted pulse disk.

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3.3 Type code
FGH
J
5
K
1024
G
90G
NG
2F
J
40P
Incremental hollow shaft encoder
Encoder with isolated bearings
Series
Connection method
K: Terminal box
S: EMC industrial plug
R: 12-pol. round plug
C: 2 m cable connection
L: Fibre optic connection
Pulses per revolution
1024, 2048
Basic signal output
Basic channel 0° (A)
Pulse channel 90° (B)
Each with inverted signals
NG: Option reference pulse with inverted signal
2F: Option 2F
4F: Option 4F
B: Option B
B2: Option B2
V: Option V
J: Option J (J can be combined with V)
Hollow shaft bore
Only with hollow shafts
Ø 40
Drive shaft connection
P: feather key

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4Transport, packaging, and storage
4.1 Instruction 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 Goods inward inspection
Check the delivery immediately upon receipt for transit damage or short delivery.
Inform the carrier immediately on receipt if you determine that damage has occurred during transit (take
photos as proof).
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 Storing 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 device every 6 month 10 times to prevent the bearing grease
solidifying, which may lead to the destruction of the device.

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5Installation and commissioning
5.1 Safety instructions
Personnel
Only trained, specialized personnel should perform installation and commissioning work.
Observe safety instructions of chapter 2 before starting any tasks (installation/testing).
5.2 Mounting of the encoder (mechanically)
Mounting and disassembly by means of a hammer or similar tools is not permitted (warranty void).
5.2.1 Assembly instruction for hollow shaft devices
1. Mount the adapter flange and align precisely with dial gauge; if necessary optimize the
alignment with ball pressure adjusting screws.
2. Secure the ball pressure screws with Loctite. Remove pressure screws that are not used, or
likewise secure them with a thread-lock lacquer.
Max. tightening torque for M12 approximately 25 Nm; for M16 approximately 35 Nm.
The hollow shafts have tapped holes on both sides at the front. For removal use screws to attach the
mounting sleeve, and the use a puller to draw off the unit. A suitable mounting sleeve is recommended
for each plant area (specify on ordering).
Mount hollow shaft encoders using mounting sleeve only.
NOTE!
The radial deviation of the shaft ( Fig. 2 Pos. 1) should not exceed 0,05 mm.
3. Use feather keys in accordance with DIN 6885.
Abb. 2
Abb. 1

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4. Mount the torque bracket/torque arm on the housing.
NOTE!
Comply with the information provided in the supplemental data sheet entitled “Mounting
Accuracy of hollow shaft encoders”.
5. Check the mounting position relative to the terminal box, adjust if necessary.
6. Push the device onto the shaft that has been lightly greased.
CAUTION!
Danger of damage to shaft and device if improperly handled.
Ensure that there are no hard impacts on hollow shaft and housing.
Use the mounting sleeve.
7. Fastening Axial tightening disc with 4x M4 on the adapter shaft.
8. Tighten the fastening screws on the link head of the torque bracket. Fix the nuts in place with
locknuts.
9. Check the attached torque brackets: The link rod must be easy to turn within the link head,
and the link heads should not tilt. If this instruction is not followed there is a danger of bearing
damage.
10. Connect the cabling in the terminal box ( Appendix, Connecting diagrams).

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5.3 Connecting the encoder
5.3.1 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!
Use of connection cables with diameter of min. 14mm –max. 15 mm is essential to ensure the protection
class. Cable outlet should show preferably downwards.
Option:
R: 12 –pole round plug
S: EMC industrial plug
C: Connection cable
Wiring arrangement and shielding:
(EMC measurement)
The cable shielding 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!
Importend instruction!
Competent persons may only connect the encoder.
Closing the terminal box cover
Check the seal of the terminal box cover, clean it if soiled. Then duly close the cover.
Cable must not be pinched
Attention with open terminal boxes.
Moisture should not get into the terminal box when connecting the cable.
5.3.2 Technical notes
Ambient temperature
The max. perm. ambient temperature depends on speed and protection class (shaft sealing) of the
encoder as well as on frequency, signal cable length and mounting situation. See chapter 3.2.
Protection class
To comply with the protection class the signal cable diameter must be appropriate to the cable gland!
See chapter 5.3.1.
Print-wedges with
operating whip
Cable gland with
plastic pins
Captive fastening
screws
Terminal boxes seal
Terminal box

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6Disassembly
6.1 Safety instructions
Cable must not be pinched
Attention with open terminal boxes.
Moisture should not get into the terminal box when connecting the cable.
Personnel
Dismantling must be carried out by skilled technical staff only.
Attention: Observe safety instructions 2 before starting any tasks.
(Installation/maintenance/disassembly).
6.2 Disassembly of the encoder
Disassembly of the hollow shaft encoder has to be done in reverse sequence.
For short adapter shafts the disassembly with the dismantling device can be done completely.

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7Troubles
7.1 Troubles table
Malfunction
Possible cause
Trouble shooting
Moisture in the terminal box
Seal of terminal box cover
Cable gland
Cable dia too small
Contact Hubner Service
Check by specialized personnel
Change cables
No output signals
No supply voltage
Mixed connection cables
Connect supply voltage
Check polarity
Disturbed output signals
Improper control cable shield
not connected
Use data cables, pairwise drilled
and common shielded
Missing output signals
Ouptut stages overloads
Short –circuit of output signals
Check connections
Check with connection diagram
Hubner –Service address see page 2

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8Inspections
8.1 Safety instructions
Personnel
Dismantling must be carried out by skilled technical staff only.
Attention: Observe safety instructions 2 before starting any tasks.
(Installation/maintenance/disassembly).
8.2 Maintenance information
The device is maintenance free. However the following tests are recommended to ensure optimal,
problem free operation.
8.3 Inspection schedule
Interval
Tests
Tasks
Every 12 month
Check coupling
Qualified person
Every 12 month
Check the fastening screws for
firm seat
Qualified person
Every 12 month
Check the cable connections
Qualified person
After approx. 16000 to 20000
operating hours and high long-
term loading
Check deep-groove ball
bearing for ease of movement
and noise.
Qualified person
Worn ball bearings have to be
replaced only by the
Manufacturer
Hubner –Giessen Service
9Disposal
The manufacturer is not obligated to take back electronics waste. The device consists of hybrid
components, and in part must be disposed of as special waste (electronic scrap) according to country-
specific legislation.
Local municipal authorities or specialized disposal companies provide information on environmentally
responsible disposal.

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10 Dimension drawings
FGHJ 5 K… 40P/ B14
HM 18 M 112769

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FGHJ 5 K/40P
HM 18 M 112763