SEW-Eurodrive DFS Series User manual

Artisan Technology Group is your source for quality
new and certied-used/pre-owned equipment
• FAST SHIPPING AND
DELIVERY
• TENS OF THOUSANDS OF
IN-STOCK ITEMS
• EQUIPMENT DEMOS
• HUNDREDS OF
MANUFACTURERS
SUPPORTED
• LEASING/MONTHLY
RENTALS
• ITAR CERTIFIED
SECURE ASSET SOLUTIONS
SERVICE CENTER REPAIRS
Experienced engineers and technicians on staff
at our full-service, in-house repair center
WE BUY USED EQUIPMENT
Sell your excess, underutilized, and idle used equipment
We also offer credit for buy-backs and trade-ins
www.artisantg.com/WeBuyEquipment
REMOTE INSPECTION
Remotely inspect equipment before purchasing with
our interactive website at www.instraview.com
LOOKING FOR MORE INFORMATION?
Visit us on the web at www.artisantg.com for more
information on price quotations, drivers, technical
specications, manuals, and documentation
Contact us: (888) 88-SOURCE | [e-mail] | www.artisantg.com
SM
View
Instra

Drive Technology \ Drive Automation \ System Integration \ Services
DFS/CFM Synchronous Servomotors
Operating Instructions
Edition 11/2008
11354313 / EN
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

SEW-EURODRIVE – Driving the world
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Operating Instructions – DFS/CFM Synchronous Servomotors 3
Contents
Contents
1 General Notes...................................................................................................... 5
1.1 How to use the operating instructions......................................................... 5
1.2 Structure of the safety notes ....................................................................... 5
1.3 Rights to claim under limited warranty ........................................................ 6
1.4 Exclusion of liability..................................................................................... 6
2 Safety Notes ........................................................................................................ 7
2.1 General information .................................................................................... 7
2.2 Target group ............................................................................................... 8
2.3 Designated use ........................................................................................... 8
2.4 Other applicable documentation ................................................................. 9
2.5 Transportation/storage................................................................................ 9
2.6 Installation/assembly................................................................................... 9
2.7 Electrical installation ................................................................................. 10
2.8 Startup/operation ...................................................................................... 10
2.9 Inspection/maintenance ............................................................................ 10
2.10 Disposal .................................................................................................... 10
3 Motor Structure ................................................................................................. 11
3.1 DFS synchronous servomotor – general structure ................................... 11
3.2 CFM synchronous servomotor – general structure................................... 12
3.3 Nameplate, unit designation and serial number........................................ 13
4 Mechanical Installation..................................................................................... 17
4.1 Required tools/resources .......................................................................... 17
4.2 Before you begin....................................................................................... 17
4.3 Preliminary work ....................................................................................... 17
4.4 Installing the motor.................................................................................... 19
4.5 Mounting tolerances.................................................................................. 20
5 Electrical Installation ........................................................................................ 21
5.1 Assembling the connector......................................................................... 21
5.2 Wiring notes .............................................................................................. 21
5.3 Connecting the motor and encoder system using SM../SB..
plug connectors......................................................................................... 22
5.4 Dimensioning the cable cross section....................................................... 23
5.5 Power cables for DFS motors ................................................................... 27
5.6 Power cables for CFM motors .................................................................. 32
5.7 Feedback cable for resolver...................................................................... 41
5.8 Feedback cable for HIPERFACE®encoders............................................ 47
5.9 Forced cooling fan cable........................................................................... 56
5.10 Cable specification of motor cables for DFS and CFM motors ................. 58
5.11 Cable specification of feedback cables for DFS and CFM motors............ 62
5.12 Connecting the motor via the terminal box ............................................... 64
5.13 Connecting the BR brake (CFM motor) .................................................... 69
5.14 Connecting the B brake (DFS56 motor).................................................... 80
5.15 Accessory equipment................................................................................ 84
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

4Operating Instructions – DFS/CFM Synchronous Servomotors
Contents
6 Startup................................................................................................................ 90
6.1 Prerequisites for startup............................................................................ 90
7 Malfunctions ...................................................................................................... 91
7.1 Motor malfunctions.................................................................................... 91
7.2 Malfunctions when operated with a servo inverter.................................... 91
7.3 Brake malfunctions .................................................................................. 92
8 Inspection/Maintenance ................................................................................... 93
8.1 Safety notes regarding inspection/maintenance ....................................... 93
8.2 Inspection intervals ................................................................................... 94
8.3 Inspection work for the B brake (DFS)...................................................... 94
8.4 Inspection work for the B brake (CFM) ..................................................... 95
9 Technical Data................................................................................................. 100
9.1 Main technical data of the servomotors .................................................. 100
9.2 Plug connectors ...................................................................................... 105
9.3 Connection with terminal box.................................................................. 105
9.4 Work done, braking torques.................................................................... 106
9.5 Brake coil resistance............................................................................... 106
9.6 BR brake – operating currents ................................................................ 107
10 Appendix.......................................................................................................... 108
10.1 Crimping tools ......................................................................................... 108
10.2 SM11/SB11 power connector assembly (for DFS56 servomotor) .......... 111
10.3 Assembly of SM5./SM6. and SB5./SB6. power connectors.................... 114
10.4 Assembly of signal plug connectors (resolver/HIPERFACE®)................ 115
10.5 Wiring diagrams for DFS/CFM synchronous servomotors...................... 118
10.6 Wiring diagram for CFM motors with power connector........................... 119
10.7 Wiring diagram for CFM motors with signal connector ........................... 119
10.8 Wiring diagram for CFM motors with terminal box.................................. 121
10.9 Wiring diagram for DFS motors with power connector ........................... 123
10.10 Wiring diagram for DFS motors with signal connector............................ 123
10.11 Wiring diagram for DFS motors with terminal box .................................. 125
10.12 Wiring diagram for VR forced cooling fan ............................................... 127
11 Address List .................................................................................................... 128
Index................................................................................................................. 137
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Operating Instructions – DFS/CFM Synchronous Servomotors 5
1
How to use the operating instructions
General Notes
1 General Notes
1.1 How to use the operating instructions
The operating instructions are an integral part of the product and contain important in-
formation for operation and service. The operating instructions are written for all employ-
ees who assemble, install, startup, and service this product.
The operating instructions must be accessible and legible. Make sure that persons re-
sponsible for the system and its operation, as well as persons who work independently
on the unit, have read through the operating instructions carefully and understood them.
Consult SEW-EURODRIVE if you have any questions or if you require further informa-
tion.
1.2 Structure of the safety notes
The safety notes in these operating instructions are structured as follows:
Symbol SIGNAL WORD
Nature and source of hazard.
Possible consequence(s) if disregarded.
• Measure(s) to prevent the hazard.
Symbol Signal word Meaning Consequences if
disregarded
Example:
General danger
Specific danger,
e.g. electric shock
DANGER Imminent danger Severe or fatal injuries
WARNING Possible hazardous situation Severe or fatal injuries
CAUTION Possible hazardous situation Minor injuries
NOTICE Potential damage to property. Damage to the drive system or its environ-
ment
TIP Useful information or tip.
Simplifies handling of the drive
system.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

6Operating Instructions – DFS/CFM Synchronous Servomotors
1Rights to claim under limited warranty
General Notes
1.3 Rights to claim under limited warranty
Adhering to the operating instructions is a prerequisite for fault-free operation and the
fulfillment of any right to claim under warranty. Therefore, read the operating instructions
before you start working with the unit.
1.4 Exclusion of liability
You must comply with the information contained in these operating instructions to en-
sure safe operation of the electric motors and to achieve the specified product charac-
teristics and performance features. SEW-EURODRIVE does not assume liability for in-
jury to persons or damage to equipment or property resulting from non-observance of
these operating instructions. In such cases, any liability for defects is excluded.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Operating Instructions – DFS/CFM Synchronous Servomotors 7
2
General information
Safety Notes
2 Safety Notes
The following basic safety notes must be read carefully to prevent injury to persons and
damage to property. The operator must ensure that the basic safety notes are read and
observed. Make sure that persons responsible for the plant and its operation, as well as
persons who work independently on the unit, have read through the operating instruc-
tions carefully and understood them. If you are unclear about any of the information in
this documentation, please contact SEW-EURODRIVE.
2.1 General information
Removing the required protection cover or the housing without authorization, improper
use as well as incorrect installation or operation may result in severe injuries to persons
or damage to property.
Refer to the documentation for additional information.
DANGER
Servomotors, gearmotors and gear units may have live, uninsulated, and sometimes
moving or rotating parts as well as hot surfaces during operation.
Severe or fatal injuries.
• All work related to transportation, storage, setup/mounting, connection, startup,
maintenance and repair may only be carried out by qualified personnel, in strict
observation of:
– The relevant detailed operating instructions
– Warning and safety signs on the motor/gearmotor All other project planning
documents, operating instructions and wiring diagrams belonging to the drive
– The specific regulations and requirements for the system
– The national/regional regulations governing safety and the prevention of
accidents
• Never install damaged products
• Immediately report any damages to the shipping company
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

8Operating Instructions – DFS/CFM Synchronous Servomotors
2Target group
Safety Notes
2.2 Target group
Any mechanical work may only be performed by adequately qualified personnel. Quali-
fied personnel in this context are persons who are familiar with the setup, mechanical
installation, trouble shooting and maintenance for this product. Further, they are quali-
fied as follows:
• Completed apprenticeship in the field of mechanical engineering (e.g. mechanic or
mechatronic technician).
• They are familiar with these operating instructions.
Any electric work may only be performed by adequately qualified personnel. Qualified
electricians in this context are persons who are familiar with the electronic installation,
startup, trouble shooting and maintenance for this product. Further, they are qualified as
follows:
• Completed apprenticeship in the field of electrical engineering (e.g. electric or
mechatronic technician).
• They are familiar with these operating instructions.
Any activities regarding transportation, storage, operation, and disposal must be carried
out by persons who have been instructed appropriately.
2.3 Designated use
The designated use refers to the procedure specified in the operating instructions.
DFS/CMP synchronous servomotors are drive motors designed for use in industrial and
commercial systems. Motor utilization other than that specified (refer to nameplate) and
areas of application other than industrial and commercial systems can only be used after
consultation with SEW-EURODRIVE.
The DFS/CFM synchronous servomotors meet the requirements stipulated in the low
voltage guideline 2006/95/EC. Do not take the unit into operation until you have estab-
lished that the end product complies with the Machinery Directive 98/37/EC.
You must observe the technical data and information on the connection requirements
as provided on the nameplate and in the documentation.
The following applications are prohibited unless the unit is explicitly designed for such
use:
• Use in potentially explosive atmospheres
• Use in areas exposed to harmful oils, acids, gases, vapors, dust, radiation, etc.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Operating Instructions – DFS/CFM Synchronous Servomotors 9
2
Other applicable documentation
Safety Notes
2.4 Other applicable documentation
The following publications and documents have to be observed as well:
• "SPIROPLAN®W Gear Units, R..7, F..7, K..7, S..7 Series" operating instructions
• "Low Backlash Geared Servomotors (BSF.., PSF..)" catalog
• Operating instructions of the inverter for motors powered by inverters
• Corresponding wiring diagrams
2.5 Transportation/storage
Follow the instructions on transportation, storage and proper handling.
Immediately upon receipt, inspect the shipment for any damage that may have occurred
during transportation. Inform the shipping company immediately in the event of damage.
If you notice any transport damage, do not startup the motor, consult the
SEW-EURODRIVE Service.
Remove securing devices used for transportation prior to startup.
Tighten installed transportation eyebolts. They are designed to only carry the weight of
the motor/gearmotor; do not attach any additional loads.
The installed lifting eyebolts comply with DIN 580. The loads and regulations specified
in this standard must always be observed. If the gearmotor has 2 suspension eye lugs
or lifting eyebolts, then you should also use both suspension eye lugs for attaching
transport ropes. In this case, the tension force vector of the slings must not exceed a 45°
angle according to DIN 580.
Store the servomotor in a dry, dust-free environment if it is not to be installed straight
away.
2.6 Installation/assembly
Comply with the instructions in section 4, "Mechanical Installation" and section 5, "Elec-
trical Installation".
The units must be installed and cooled according to the regulations and specifications
in the corresponding documentation.
Protect the synchronous servomotors from excessive strain. Ensure that components
are not deformed, particularly during transportation and handling.
The following applications are prohibited unless the unit is explicitly designed for such
use:
• Use in potentially explosive atmospheres
• Use in areas exposed to harmful oils, acids, gases, vapors, dust, radiation, etc.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

10 Operating Instructions – DFS/CFM Synchronous Servomotors
2Electrical installation
Safety Notes
2.7 Electrical installation
Perform electrical installation according to the respective applicable laws, regulations
and standards (e.g. cable cross sections, fusing, protective conductor connection). For
any additional information, refer to the applicable documentation.
Observe the wiring information and differing data on the nameplate.
Observe the notes in sec. 5, "Electrical Installation".
2.8 Startup/operation
Whenever changes to normal operation occur, such as increased temperatures, noise,
vibrations, determine the cause and consult the manufacturer.
Observe the notes in section 6, "Startup".
2.9 Inspection/maintenance
Observe the notes in section 8, "Inspection/Maintenance".
2.10 Disposal
This product consists of:
•Iron
•Aluminum
• Copper
• Plastic
• Electronic components
Dispose the individual components in accordance with the material structure and
the regulations in force.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Operating Instructions – DFS/CFM Synchronous Servomotors 11
3
DFS synchronous servomotor – general structure
Motor Structure
3 Motor Structure
3.1 DFS synchronous servomotor – general structure
TIP
The following illustrations are intended to explain the general structure. They are to
facilitate the assignment of components to the spare parts list. Deviations are possible
depending on the motor size and version!
413859723
AS1H / ES1H
[316] [321] [1] [10][7] [11] [304]
[304]
[220]
[305][42][44][550][16][106]
[313]
[314]
[318]
[319]
[1] Rotor [304] Housing cover
[7] Flanged endshield [305] Resolver
[10] Retaining ring [313] Locking plate
[11] Grooved ball bearing [314] Pin contact power/brake
[16] Stator [316] Power connector, complete
[42] B-side endshield [318] Flange socket complete
[44] Grooved ball bearing [319] Pin contact signal
[106] Oil seal without key [321] Signal connector, complete
[220] Absolute encoder [550] Complete brake
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

12 Operating Instructions – DFS/CFM Synchronous Servomotors
3CFM synchronous servomotor – general structure
Motor Structure
3.2 CFM synchronous servomotor – general structure
413861259
[105]
[11]
[1]
[44]
[42]
[16]
[7]
[106]
[312]
[313]
[316] [317]
[304]
[327]
[305]
[737]
[660]
[318]
[321]
[550]
[1] Rotor [312] Connector housing
[7] Flanged endshield [313] Locking plate
[11] Grooved ball bearing [316] Power connector, complete
[16] Stator [317] Socket contact
[42] B-side endshield [318] Flange socket complete
[44] Grooved ball bearing [321] Signal connector, complete
[105] Shim washer [327] Cover
[106] Oil seal [550] Complete brake
[304] Housing cover [660] Release lever
[305] Resolver [737] Encoder housing
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Operating Instructions – DFS/CFM Synchronous Servomotors 13
3
Nameplate, unit designation and serial number
Motor Structure
3.3 Nameplate, unit designation and serial number
3.3.1 Nameplate
Example: CFM 71M /BR /TF /RH1M synchronous brake motor
3.3.2 DFS/CFM unit designations
Synchronous servomotors
Standard equipment for synchronous servomotors
685748747
/
N
0
Sys
3 IEC60034
Nr.
IM
CFM71M/BR/TF/RH1L/SB50
01.1234567890.0001.07
6,5
3000
400
4,3
17,2
155 (F) -20...+40
Permanentmagnet
˚C
Gleichrichter
B5
230 14
65
13,0
Motor
Typ
BME
Getriebe
Made in Germany
r/min
M
a pk
V
n
e pk
n
a pk
Umrichterbetrieb
0199 081 0.13
:1
Iso.Kl.
A
A
V
IP
ikg
Nm
U
I
max
r/min
I
0
Nm
n
M
76646 Bruchsal/Germany
Bremse
Nm
DS... Motor for mounting to size 56 gear units
DFS... Size 56 in flange-mounted version
CM... Motor for mounting to gear units of sizes 71/90/112
CFM... Sizes 71/90/112 in flange-mounted version
/SM.0 Motor plug connector (socket on motor end only)
/SB.0 Plug connector motor + brake (socket on motor end only)
/RH1M Resolver
/RH1L Resolver for brake motors
/TF Thermistor (PTC resistor)
/KTY Temperature sensor
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

14 Operating Instructions – DFS/CFM Synchronous Servomotors
3Nameplate, unit designation and serial number
Motor Structure
Synchronous servomotor options
3.3.3 Sample unit designation: DFS synchronous brake motor
/B Size 56 disk brake
/BR Size 71/90/112 disk brake
/HR . . manual brake release with automatic re-engaging function sizes 71/90/112
/SM.. Motor plug connector with code number for size and connection cross section
SB.. Plug connector for motor + brake with code number for size and connection cross section
/ES1H HIPERFACE®single-turn encoder, spreadshaft, size 56/71/90/112
/AS1H HIPERFACE®multi-turn encoder, spreadshaft, size 56/71/90/112
/AV1H HIPERFACE®multi-turn encoder, solid shaft, size 56/71/90/112
/AV1Y Multi-turn SSI encoder, solid shaft, size 56
/AK0H Multi-turn SSI encoder, solid shaft, size 56
/EK0H HIPERFACE®single-turn encoder, spread shaft, size 56
/VR Forced cooling fan
/KK Terminal box
/KK5 Terminal box for radial encoder
/KK6 Terminal box for axial encoder
DFS 56L /B /TF /RH1M /SM11
Plug connector (motor option)
Resolver as standard equipment
TF thermistor as standard equipment
Brake (motor option)
Size 56L
Flange-mounted motor DFS series
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Operating Instructions – DFS/CFM Synchronous Servomotors 15
3
Nameplate, unit designation and serial number
Motor Structure
3.3.4 Sample unit designation: CFM synchronous brake motor
3.3.5 Scope of delivery for SEW-EURODRIVE motors
The scope of delivery for SEW-EURODRIVE servomotors includes for standard mo-
tors:
CFM 112S /BR /TF /AS1H /SB50
Plug connector as standard
Motor option HIPERFACE®multi-turn
encoder
TF thermistor as standard equipment
Brake (motor option)
Size 112S
Flange-mounted motor CFM series
Delivery with order confir-
mation
1 x Operating instructions in the language of the corresponding country, if requested. When ordering
several servo gear units, the customer can reduce the number of operating instructions.
1 x Safety notes for startup, if requested
1 x Spare parts list if requested
Delivery with drive 1 x Motor according to order confirmation
Pre-fabricated cable 1 x Bag with loose parts including conductor end sleeves and cable lugs for connection to
SEW-EURODRIVE inverters.
Forced cooling fan 1 x Power connector
1 x Power socket
4 x Hex head screw
4 x Square nut
Plug connector 1 x Encoder connector (radial or axial)
10 x Crimp socket contacts for encoder connector for core cross sections of 0.25 mm2to 0.5 mm2.
1 x SM50 mating connector for motor power cable
4 x Crimp socket contacts for power connection for core cross sections of 1.5, 2.5, 4, 6 or 10 mm2
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

16 Operating Instructions – DFS/CFM Synchronous Servomotors
3Nameplate, unit designation and serial number
Motor Structure
The scope of delivery for SEW-EURODRIVE servomotors includes for brakemotors:
3.3.6 Example: Serial number
Delivery with order confir-
mation
1 x Operating instructions in the language of the corresponding country, if requested. When ordering
several servo gear units, the customer can reduce the number of operating instructions.
1 x Safety notes for startup, if requested
1 x Spare parts list if requested
Delivery with drive 1 x Motor according to order confirmation
Pre-fabricated cable 1 x Bag with loose parts including conductor end sleeves and cable lugs for connection to
SEW-EURODRIVE inverters
Brake 1 x AC-operated BME brake rectifier for DIN rail mounting, or alternatively:
- BMP, BMH or BMK brake rectifier
- BSG brake control unit at a voltage of DC 24 V
1 x Manual release lever if brake with manual release was ordered
Forced cooling fan 1 x Power connector
1 x Power socket
4 x Hex head screw
4 x Square nut
4 x Mounting bracket
Plug connector 1 x Encoder connector (radial or axial)
10 x Crimp socket contacts for encoder connector for core cross sections of 0.25 mm2to 0.5 mm2
1 x SB50 mating connector for motor power and brake cable
4 x Crimp socket contacts for power connection for core cross sections of 1.5, 2.5, 4, 6 or 10 mm2
3 x Crimp socket contacts for brake connection for core cross sections of 1 mm2or 1.5 mm2
01. 301234568. 0001. 03
Final two digits of the year of manufacture
Unit serial number (4 digits)
Order number (10 digits)
Sales organization
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Operating Instructions – DFS/CFM Synchronous Servomotors 17
4
Required tools/resources
Mechanical Installation
4 Mechanical Installation
4.1 Required tools/resources
• Standard tools
• Mounting device
• Operation with conductor end sleeves: Crimping tool and conductor end sleeves
• Crimping tool for plug connectors
• Removal tool
4.2 Before you begin
The drive may only be installed if
• The specifications on the drive's nameplate and/or the output voltage of the
frequency inverter match the voltage supply system
• The drive is undamaged (no damage caused by transportation or storage).
• You are certain that the following requirements have been fulfilled:
– Ambient temperature between –20 °C and +40 °C
– No oil, acid, gas, vapors, radiation, etc.
– Installation altitude max. 1000 m above sea level
– Special designs: Drive configured in accordance with the ambient conditions
4.3 Preliminary work
Motor shaft ends must be thoroughly cleaned of anti-corrosion agents, contamination or
similar (use a commercially available solvent). Make sure that the solvent does not come
into contact with the bearing or sealing rings as it may damage the material.
4.3.1 Installation after extended storage
• Note that the service life of the lubricant in the ball bearings is reduced by 10% per
year after the first year of storage.
• Check whether the motor has absorbed moisture as a result of being stored for a long
time. Measure the insulation resistance for this purpose (measuring voltage
DC 500 V).
NOTICE
The bearing and the sealing rings can be damaged if exposed to solvents.
Potential damage to property.
• Protect the bearing and sealing rings from exposure to solvents.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

18 Operating Instructions – DFS/CFM Synchronous Servomotors
4Preliminary work
Mechanical Installation
The insulation resistance (see following figure) varies greatly depending on the temper-
ature. The motor must be dried if the insulation resistance is not adequate.
The following figure shows the insulation resistance depending on the temperature.
4.3.2 Drying the motor
413914507
100
10
1
0,1 020 40 60 80
[°C]
[MΩ]
[1]
TIP
Insulation resistance too low:
→Servomotor has absorbed moisture
Measure:
• Use hot air to heat up the motor.
• Open the motor compartment enough for moisture to escape from the inside.
Next check whether:
• The wiring space is dry and clean.
• The connections and fastening parts are free from corrosion.
• The joint seal is functioning.
• The cable glands are tight, otherwise clean or replace them.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Operating Instructions – DFS/CFM Synchronous Servomotors 19
4
Installing the motor
Mechanical Installation
4.4 Installing the motor
If a forced cooling fan is used, ensure there is sufficient clearance around the unit to
allow for adequate cooling. Make sure that the unit does not suck in hot outgoing air from
other units.
Components with a keyway to be mounted belatedly on the shaft must be balanced
using a half key. Motor shafts may be balanced with a half key (vibration level "N" to
EN/IEC 600 34). You must not operate the motor without a key.
NOTICE
Improper mounting may result in damages to the motor.
Potential damage to property.
• Only install the motor in the specified mounting position on a level, vibration-free,
and torsionally rigid support structure.
• Align the motor and the driven machine carefully to avoid placing any unacceptable
strain on the output shafts.
• Observe permitted overhung and axial loads → "Low Backlash Servo Gearmotors
(BSF.., PSF..)" catalog.
• Do not butt or hammer the shaft end.
NOTICE
Vertical designs with VR forced-cooling fan can get damaged by foreign objects or
moisture.
Potential damage to property.
• Protect vertical designs with VR forced-cooling fan with corresponding covers.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com