phytron LSS 26 User manual

Extreme. Precision. Positioning.
Manual 1203-A010 EN
How to Handle
In-Vacuum Stepper Motors
Cryo Motors

phytron
4/2019 Manual 1203-A010 EN
How to Handle
In-Vacuum Stepper Motors
and Cryo Stepper Motors

How to Handle In-Vacuum and Cryo Stepper Motors
2 MA 1203-A010 EN
2019
All rights with:
Phytron GmbH
Industriestraße 12
82194 Gröbenzell, Germany
Tel.: [phone]
Fax: [phone]
Every possible care has been taken to ensure the accuracy of this technical manual. All infor-
mation contained in this manual is correct to the best of our knowledge and belief but cannot be
guaranteed. Furthermore, we reserve the right to make improvements and enhancements to the
manual and / or the devices described herein without prior notification.
We appreciate suggestions and criticisms for further improvement. Please send your comments to
the following
E-mail address: [e-mail]

phytron
MA 1203-A010 EN 3
Contents
1Legal Information..........................................................................................................................4
1.1 Qualified personnel.................................................................................................................5
1.2 Safety Instructions ..................................................................................................................6
1.3 Handling instruction ................................................................................................................7
1.4 European Standards and CE Mark .........................................................................................8
2In-Vacuum Stepper Motors and Cryo Stepper Motors...................................................................9
2.1 Heating in Vacuum Environment.............................................................................................9
3Package........................................................................................................................................10
3.1 Transportation Package..........................................................................................................10
3.2 Outer Package........................................................................................................................10
3.3 Protective Film........................................................................................................................11
3.4 Rating Plate............................................................................................................................12
4Configuration and Use Limitation..................................................................................................13
4.1 Motor Selection.......................................................................................................................13
4.2 Use limitation..........................................................................................................................14
5Mounting.......................................................................................................................................15
6Electrical Connection....................................................................................................................16
6.1 Maximum Allowable Phase Current ........................................................................................17
6.2 Leads......................................................................................................................................18
6.2.1 Marking of the Leads..................................................................................................18
6.2.2 Connecting the Leads ................................................................................................19
6.3 Direction of Rotation ...............................................................................................................20
7Temperature Measuring (Motors with Temperature Sensor).........................................................21
7.1 Type K Thermal Element ........................................................................................................21
7.2 Pt100 Resistor Sensor............................................................................................................22
8Conditioning In-Vacuum Stepper Motors.......................................................................................24
8.1 Overview.................................................................................................................................24
8.2 Baking Out (Option) ................................................................................................................24
8.3 First Outgassing (Standard)....................................................................................................24
8.4 Degas (Option) .......................................................................................................................24
9Storage.........................................................................................................................................25
10Technical Data..............................................................................................................................26
10.1 Vacuum Classes................................................................................................................26
10.2 Design Voltage ..................................................................................................................26
10.3 Test Voltage.......................................................................................................................26
11Declaration of Incorporation..........................................................................................................27

How to Handle In-Vacuum and Cryo Stepper Motors
4 MA 1203-A010 EN
1 Legal Information
i
This manual:
Read this manual very carefully before mounting, installing and operating the
device and if necessary further manuals related to this product.
- Please pay special attention to instructions that are marked as follows:
DANGER –
Serious injury!
Indicates a high risk of serious injury or
death!
DANGER –
Serious injury from
electric shock!
Indicates a high risk of serious injury or
death from electric shock!
WARNING –
Serious injury pos-
sible!
Indicates a possible risk of serious injury
or death!
WARNING –
Serious injury from
electric shock!
Indicates a possible risk of serious injury
or death from electric shock!
CAUTION –Possi-
ble injury!
Indicates a possible risk of personal in-
jury.
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CAUTION –Possi-
ble damage!
Indicates a possible risk of damage to
equipment.
CAUTION –Possi-
ble damage due to
ESD!
Refers to a possible risk of equipment
damage from electrostatic discharge.
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”Any heading“
Refers to an important paragraph in the
manual.

phytron
MA 1203-A010 EN 5
1.1 Qualified personnel
Observe the following safety instructions!
WARNING –Serious injury possible!
Serious personal injury or serious damage to the machine and drives could
be caused by insufficiently trained personnel!
Without proper training and qualifications, damage to devices and injury
might result!
- Design, installation and operation of systems may only be performed
by qualified and trained personnel.
- These persons should be able to recognize and handle risks emerg-
ing from electrical, mechanical or electronic system parts.
- The qualified personnel must know the content of this manual and
be able to understand all documents belonging to the product. Safe-
ty instructions are to be provided.
- The trained personnel must know all valid standards, regulations
and rules for the prevention of accidents, which are necessary for
working with the product.

How to Handle In-Vacuum and Cryo Stepper Motors
6 MA 1203-A010 EN
1.2 Safety Instructions
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Intended use:
The In-Vacuum and Cryo stepper motors are designed for operating in an
in-vacuum drive system.
- An installation is allowed only if the requirements of the EC Ma-
chinery and EMC Directives are conformed with.
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Part of a machine:
This product is used as a part of a complete system, therefore risk evalua-
tions concerning the specific application must be made before using the
product.
- Safety measures have to be taken according to the results and be
verified.
- Personnel safety must be ensured by the concept of this overall
system (e.g. machine concept).
WARNING –Injury from the rotating shaft!
The rotating motor shaft can accelerate loosely attached parts. This can
result in injury.
- Make sure, that before operation, all moving parts are fixed.
WARNING –Injury from the rotating shaft!
Hair, clothes and jewellery can be wound up and trapped by the rotating motor shaft .
- Before starting to wire, make sure that clothing and jewellery are
tight and hair cannot be captured.
WARNING –Injury from conversion into a translational motion!
If the rotation in the customer system is converted into a translational motion
(e.g. via spindle) injuries can occur from crushing.
- Before operation, check the system structure.
WARNING –Serious injury from electric shock!
During electrical installation cables, connectors, etc. can be live.
- Do not plug or unplug the motor while powered.
- Do not plug or unplug the connectors while powered.
- If the motor was energised, wait 3 minutes after power off to allow
the capacitors to discharge and ensure that there are no residual
charges on cables, connectors and boards.

phytron
MA 1203-A010 EN 7
WARNING –Injury from touching the housing!
Stepper motors heat up during operation. The surface of the motor can be
heated over +100 °C.
- The motor must be mounted in such way that proper dissipation of
the generated heat is ensured.
- Wait until the stepper motor has completely cooled down.
- Ensure measures for contact protection
1.3 Handling instruction
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CAUTION –Possible damage!
The stepper motor's rotor is strongly magnetic. Metal or soft iron particles
penetrating through the large outgassing holes might damage motor func-
tion.
- Metal particles must be kept away from the motor.
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CAUTION –Possible damage!
Foreign substances, dirt or humidity penetrating through the outgassing
holes could seriously damage motor function or cause breakdown.
- Do not touch the stepper motor with bare hands. Wear security
gloves
- Handle the in-vacuum stepper motor/cryo stepper motor only in a
very clean environment!

How to Handle In-Vacuum and Cryo Stepper Motors
8 MA 1203-A010 EN
i
CAUTION –Possible damage!
- Please note the wiring data on the data plate and the permitted
mechanical loads (see technical data in the data sheet).
- Switch off the supply voltage before mounting and wiring the step-
per motor.
- Stepper motors must not be operated with mains voltage. Stepper
motors require special control units
- While press-fitting couplings or pinions on the motor shaft, the lat-
ter should be supported.
- Remove the PTFE tube only from the lead which you are just con-
necting (chapter 6.2.2).
- Never lift the motor by means of its cables or leads! Care for strain
relief when stripping or shortening the leads!
- Comply with EMC conform wiring (chapter 6.2.2).
- Do not open the stepper motor! If the casing is opened, the motor
may be damaged. Phytron's warranty does not apply if motors are
opened by the customer. When operating a motor that was as-
sembled improperly, danger to life could be caused by electric
shock.
- The customer must not carry out mechanical or electrical modifica-
tions of the motor. The warranty does not apply if the motor is mod-
ified by the customer without the manufacturer's permission
1.4 European Standards and CE Mark
When installed appropriately, VSS in-vacuum and Cryo stepper motors fulfil the require-
ments of the EMC and Low Voltage Directives. VSS in-vacuum and Cryo stepper motors
are qualified to be marked CE and comply with EN 60034-1 European Standard.
When wired correctly (see chapter Fig. 5), VSS in-vacuum and Cryo stepper motors fulfil
the requirements of the EMC Directive. Information concerning the connection of the motor
cable to the control unit or the power stage is given in the corresponding manuals.
According to the European Machine Directive, the stepper motor is only a part of a ma-
chine. Placing into operation is not allowed until the machine manufacturer takes appropri-
ate measures to ensure that the entire system fulfils the requirements of the applicable EU
Directives.

phytron
MA 1203-A010 EN 9
2 In-Vacuum Stepper Motors and Cryo Stepper Motors
Phytron VSS stepper motors for in-vacuum and Cryo applications are precision drives with
protection class IP20. According to the vacuum class, the motors are designed for different
temperature, pressure and radiation ranges, see section 10.1. Cryo stepper motors are
ultra high vacuum stepper motors for operation e.g. in liquid nitrogen or liquid helium.
In-vacuum and Cryo stepper motors are manufactured, cleaned, tested and packed with
great care and accuracy. A 3-stage package protects the stepper motor against contami-
nation, moisture and mechanical damage.
On opening the packaging, several precautions must be observed (section 3) to maintain
the defined stepper motor's specifications and functionality.
Outgassing hole
Engraved
serial number
Fig. 1 : In-vacuum or Cryo stepper motor –rear view
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The two most important rules for handling in-vacuum and Cryo step-
per motors:
- Do not touch the stepper motor with bare hands!
- Take care that no particles or moisture can get inside the motor
through the outgassing holes.
2.1 Heating in Vacuum Environment
Normally, the heat generated by a stepper motor in a vacuum is largely dissipated by con-
duction through the mounting surface; heat dissipation by convection and radiation are
negligible. To avoid overheating the motor, the maximum specified temperatures (sec-
tion10.1 ) must be taken into account when determining duty cycles for setting the peak,
run and stop (holding) current values.