Pfeiffer Vacuum HISCROLL 12 User manual

OPERATING INSTRUCTIONS
EN
Translation of the Original
HISCROLL 12 ∣18
Scroll pump

Dear Customer,
Thank you for choosing a Pfeiffer Vacuum product. Your new scroll pump is designed to
support you with its performance, perfect operation and without impacting your individual
application. The name Pfeiffer Vacuum stands for high-quality vacuum technology, a
comprehensive and complete range of top-quality products and first-class service. From this
extensive, practical experience we have gained a large volume of information that can
contribute to efficient deployment and to your personal safety.
In the knowledge that our product must avoid consuming work output, we trust that our
product can offer you a solution that supports you in the effective and trouble-free
implementation of your individual application.
Please read these operating instructions before putting your product into operation for the
first time. If you have any questions or suggestions, please feel free to contact info@pfeiffer-
vacuum.de.
Further operating instructions from Pfeiffer Vacuum can be found in the Download Center on
our website.
Disclaimer of liability
These operating instructions describe all models and variants of your product. Note that your
product may not be equipped with all features described in this document. Pfeiffer Vacuum
constantly adapts its products to the latest state of the art without prior notice. Please take
into account that online operating instructions can deviate from the printed operating
instructions supplied with your product.
Furthermore, Pfeiffer Vacuum assumes no responsibility or liability for damage resulting from
the use of the product that contradicts its proper use or is explicitly defined as foreseeable
misuse.
Copyright
This document is the intellectual property of Pfeiffer Vacuum and all contents of this
document are protected by copyright. They may not be copied, altered, reproduced or
published without the prior written permission of Pfeiffer Vacuum.
We reserve the right to make changes to the technical data and information in this document.
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Table of contents
1 About this manual 8
1.1 Validity 8
1.1.1 Applicable documents 8
1.1.2 Variants 8
1.2 Target group 8
1.3 Conventions 8
1.3.1 Pictographs 8
1.3.2 Instructions in the text 8
1.3.3 Stickers on the product 9
1.3.4 Abbreviations 10
2 Safety 11
2.1 General safety information 11
2.2 Safety instructions 11
2.3 Safety precautions 15
2.4 Limits of use of the product 16
2.5 Proper use 16
2.6 Foreseeable misuse 16
2.7 Personnel qualification 17
2.7.1 Ensuring personnel qualification 17
2.7.2 Personnel qualification for maintenance and repair 17
2.7.3 Advanced training with Pfeiffer Vacuum 18
3 Product description 19
3.1 Function 19
3.1.1 Drive 20
3.1.2 Cooling 20
3.1.3 Shaft bearing 20
3.1.4 Gas ballast 20
3.1.5 Pressure sensor 20
3.2 Connections 21
3.3 Identifying the product 21
3.4 Product features 21
3.5 Scope of delivery 21
4 Transportation and Storage 22
4.1 Transporting the vacuum pump 22
4.2 Storing the vacuum pump 23
5 Installation 24
5.1 Set up the vacuum pump 24
5.2 Connecting the vacuum side 24
5.3 Connecting the exhaust side 25
5.4 Connecting the external gas ballast supply 26
5.5 Establishing the mains connection 27
6 Interfaces 29
6.1 Interface overview 29
6.2 "Remote" interface 29
6.2.1 Inputs 30
6.2.2 Outputs 30
6.2.3 RS-485 31
6.3 Connection options 31
6.4 Interface RS-485 31
6.5 Pfeiffer Vacuum protocol for RS-485 interface 32
6.5.1 Telegram frame 32
6.5.2 Telegram description 33
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6.5.3 Telegram example 1 33
6.5.4 Telegram example 2 33
6.5.5 Data types 34
7 Parameter set 35
7.1 General 35
7.2 Control commands 35
7.3 Status requests 36
7.4 Reference value inputs 37
7.5 Additional parameter for the DCU 38
8 Operation 39
8.1 Putting the vacuum pump into operation 39
8.2 Switching on the vacuum pump 39
8.3 Configuring the connections with the Pfeiffer Vacuum parameter set 39
8.3.1 Configuring the digital outputs 39
8.3.2 Selecting the interfaces 40
8.4 Operating modes 40
8.5 Speed modes 41
8.5.1 Normal operation 41
8.5.2 Standby mode 41
8.5.3 Speed actuator operation 42
8.5.4 Auto boost 42
8.5.5 Auto standby 42
8.6 Pressure regulation operation 43
8.7 Operation with gas ballast 43
8.8 Operating mode display via LED 44
8.9 Switching off the vacuum pump 45
9 Maintenance 46
9.1 Maintenance information 46
9.2 Checklist for inspection and maintenance 46
9.3 Changing the tip seal 47
9.3.1 Disassembling the spiral housing 47
9.3.2 Replacing the tip seal 49
9.3.3 Assembling the pump housing 51
10 Decommissioning 53
10.1 Shutting down for longer periods 53
10.2 Recommissioning 53
11 Recycling and disposal 54
11.1 General disposal information 54
11.2 Disposing of the scroll pump 54
12 Malfunctions 55
12.1 General 55
12.2 Error codes 56
12.3 Warning and error messages when operating with DCU 57
13 Service solutions by Pfeiffer Vacuum 58
14 Accessories 60
14.1 Accessory information 60
14.2 Ordering accessories 60
15 Technical data and dimensions 61
15.1 General 61
15.2 Technical data 61
15.3 Substances in contact with the media 63
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15.4 Dimensions 63
Declaration of conformity 65
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List of tables
Tbl. 1: Stickers on the product 9
Tbl. 2: Abbreviations used 10
Tbl. 3: Permissible ambient conditions 16
Tbl. 4: Interfaces of the electronic drive unit 21
Tbl. 5: Features of scroll pumps 21
Tbl. 6: Terminal lay-out of 15-pin "remote" connection 30
Tbl. 7: Features of the RS-485 interface 31
Tbl. 8: Explanation and meaning of the parameters 35
Tbl. 9: Control commands 36
Tbl. 10: Status requests 37
Tbl. 11: Reference value inputs 37
Tbl. 12: Parameter for DCU functions 38
Tbl. 13: Configure parameters [P:019] and [P:024] 40
Tbl. 14: Parameter [P:060] 40
Tbl. 15: HiScroll gas ballast valve switch settings 44
Tbl. 16: Behavior and meaning of the LEDS of the electronic drive unit 44
Tbl. 17: Behavior and meaning of the LED standby 45
Tbl. 18: Maintenance intervals 47
Tbl. 19: Troubleshooting with scroll pumps 56
Tbl. 20: Error messages of the electronic drive unit 57
Tbl. 21: Warning messages of the electronic drive unit 57
Tbl. 22: Warning and error messages when using a DCU 57
Tbl. 23: Accessories for HiScroll 60
Tbl. 24: Conversion table: Pressure units 61
Tbl. 25: Conversion table: Units for gas throughput 61
Tbl. 26: Technical data for HiScroll 12 62
Tbl. 27: Technical data for HiScroll 18 63
Tbl. 28: Materials that make contact with the process media 63
List of tables
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List of figures
Fig. 1: Position of the stickers on the product 10
Fig. 2: Schematic compression cycle of scroll pumps 19
Fig. 3: HiScroll design 20
Fig. 4: Slinging points for transport of the scroll pump 22
Fig. 5: Minimum clearances and permissible inclination 24
Fig. 6: Example of vacuum connection 25
Fig. 7: Example of exhaust connection 26
Fig. 8: Connecting the gas ballast external supply 27
Fig. 9: Establishing mains connection 28
Fig. 10: Interfaces of the electronic drive unit 29
Fig. 11: Connection diagram of 15-pin "remote" connection 29
Fig. 12: Connecting a display and control unit via “remote” 31
Fig. 13: Cross-link via connection RS-485 using connection cables and accessories 32
Fig. 14: Speed modes 41
Fig. 15: Loosening the fan cover on the scroll pump 48
Fig. 16: Removing the fan cover on the scroll pump 48
Fig. 17: Removing the scroll pump spiral housing 49
Fig. 18: Replacing the tip seal on the scroll pump 50
Fig. 19: Tip seal nut in the spiral housing 50
Fig. 20: Assembling the housing parts 51
Fig. 21: HiScroll 12 | HiScroll 18 64
List of figures
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1 About this manual
IMPORTANT
Read carefully before use.
Keep the manual for future consultation.
1.1 Validity
This operating instructions is a customer document of Pfeiffer Vacuum. The operating instructions de-
scribe the functions of the named product and provide the most important information for the safe use of
the device. The description is written in accordance with the valid directives. The information in this op-
erating instructions refers to the product's current development status. The document shall remain valid
provided that the customer does not make any changes to the product.
1.1.1 Applicable documents
Document Number
Declaration of conformity A component of these instructions
You can find this document in the Pfeiffer Vacuum Download Center.
1.1.2 Variants
●HiScroll 12, Scroll Pump, Standard
●HiScroll 12, Scroll Pump, Standard, incl. pressure sensor
●HiScroll 18, Scroll Pump, Standard
●HiScroll 18, Scroll Pump, Standard, incl. pressure sensor
1.2 Target group
These operating instructions are aimed at all persons performing the following activities on the product:
●Transportation
●Setup (Installation)
●Usage and operation
●Decommissioning
●Maintenance and cleaning
●Storage or disposal
The work described in this document is only permitted to be performed by persons with the appropriate
technical qualifications (expert personnel) or who have received the relevant training from Pfeiffer Vac-
uum.
1.3 Conventions
1.3.1 Pictographs
Pictographs used in the document indicate useful information.
Note
Tip
1.3.2 Instructions in the text
Usage instructions in the document follow a general structure that is complete in itself. The required ac-
tion is indicated by an individual step or multi-part action steps.
About this manual
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Individual action step
A horizontal, solid triangle indicates the only step in an action.
►This is an individual action step.
Sequence of multi-part action steps
The numerical list indicates an action with multiple necessary steps.
1. Step 1
2. Step 2
3. ...
1.3.3 Stickers on the product
This section describes all the stickers on the product along with their meaning.
Mod. HiScroll 12
P/N PD S20 000
S/N - - - - - - - -
Made in Germany 2020/04
S(N2)max. 12.1 m3/h
Oil - - -
Mass 24 kg
nmax. 1560 1/min
100-127 VAC ±10% 50/60 Hz 8.0 A
200-240 VAC ±10% 50/60 Hz 4.0 A
D-35614 Asslar
C US
TÜV Rheinland
Rating plate
The rating plate is located clearly visible on a longitudinal side of
the vacuum pump.
Warning hot surface
This sticker warns of injuries caused by high temperatures in
case of touching without protection during operation.
Operating instructions note
This sticker indicates that this operating instructions must be
read before performing any tasks.
warranty seal
Closure seal
The product is sealed ex-factory. Damaging or removing a clo-
sure seal results in loss of the warranty.
Tbl. 1: Stickers on the product
About this manual
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1
2
3
Fig. 1: Position of the stickers on the product
1Rating plate
2Hot surface warning sign
3Closure seal
1.3.4 Abbreviations
Abbreviation Explanation
OI Operating instructions
DCU Display Control Unit
fRotation speed value of a vacuum pump (frequency, in rpm or Hz)
FKM Fluorinated rubber
HPU Handheld Programming Unit
[P:xxx] Parameters are printed in bold as three-digit numbers in square brackets. Example:
[P:xxx] Software version
PC Personal computer
PTFE Polytetrafluoroethylene
RCD Residual Current Device
RPT Digital pressure sensor (RPT 010)
RS-485 Standard for a physical interface for asynchronous serial data transmission (Recom-
mended Standard)
SI Service instructions
USB Universal Serial Bus
Tbl. 2: Abbreviations used
About this manual
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2 Safety
2.1 General safety information
The following 4 risk levels and 1 information level are taken into account in this document.
DANGER
Immediately pending danger
Indicates an immediately pending danger that will result in death or serious injury if not observed.
►Instructions to avoid the danger situation
WARNING
Potential pending danger
Indicates a pending danger that could result in death or serious injury if not observed.
►Instructions to avoid the danger situation
CAUTION
Potential pending danger
Indicates a pending danger that could result in minor injuries if not observed.
►Instructions to avoid the danger situation
NOTICE
Danger of damage to property
Is used to highlight actions that are not associated with personal injury.
►Instructions to avoid damage to property
Notes, tips or examples indicate important information about the product or about this docu-
ment.
2.2 Safety instructions
All safety instructions in this document are based on the results of the risk assessment carried out in
accordance with Machinery Directive 2006/42/EC Annex I and EN ISO 12100 Section 5. Where applica-
ble, all life cycle phases of the product were taken into account.
Risks during transport
WARNING
Risk of serious injury from swinging, toppling or falling objects
During transport, there is a risk of crushing and impact on swinging, toppling or falling objects. There
is a risk of injuries to limbs, up to and including bone fractures and head injuries.
►Secure the danger zone if necessary.
►Pay attention to the center of gravity of the load during transport.
►Ensure even movements and moderate speeds.
►Observe safe handling of the transport devices.
►Avoid sloping attachment aids.
►Never stack products.
►Wear protective equipment, e.g. safety shoes.
Safety
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Risks during installation
DANGER
Danger to life from electric shock
Inadequate or incorrect grounding of the unit leads to contact-sensitive voltage on the housing. When
making contact, increased leakage currents will cause a life-threatening electric shock.
►Before the installation, check that the connection leads are voltage-free.
►Conduct the electrical connection in accordance with locally applicable regulations.
►Make sure that the local mains voltage and frequency match rating plate specifications.
►Make sure that the mains cable and extension cable meet the requirements for double isolation
between input voltage and output voltage, in accordance with IEC 61010 and IEC 60950.
►Use only a 3-pin mains cable and extension cable with properly connected protective earthing
(earthed conductor).
►Plug the mains plug into a socket with earthing contact only.
►Always connect the mains cable prior to all other cables, to ensure continuous protective earth-
ing.
DANGER
Danger to life from electric shock
When establishing the voltages that exceed the specified safety extra-low voltage (according to IEC
60449 and VDE 0100), the insulating measures will be destroyed. There is a danger to life from elec-
tric shock at the communication interfaces.
►Connect only suitable devices to the bus system.
WARNING
Risk of fatal injury due to electric shock on account of incorrect installation
The device's power supply uses life-threatening voltages. Unsafe or improper installation can lead to
life-threatening situations from electric shocks obtained from working with or on the unit.
►Ensure safe integration into an emergency off safety circuit.
►Do not carry out your own conversions or modifications on the unit.
WARNING
Risk of fatal injury due to electric shock caused by water damage
The device meets protection degree IP 20 according to EN 60529: 2014 and is not protected against
water ingress. Vacuum pumps operated on the floor lead to leakage current in penetrating and sur-
rounding water. There is a danger to life from electric shock when making contact with live water.
►In case of water damage, disconnect the complete power supply from the area affected.
►Provide an on-site electrical fuse protection (e.g. RCD) in hazardous areas.
►When selecting the installation location, observe potential damage from water.
WARNING
Danger to life from poisoning where toxic process gases leak with no exhaust line
During normal operation, the vacuum pump expels exhaust gases and vapors freely into the air. In
processes involving toxic media, there is a risk of injury and danger to life due to poisoning.
►Observe the relevant regulations for handling toxic substances.
►Safely purge toxic process gases via an exhaust line.
Safety
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CAUTION
Danger of injury from bursting as a result of high pressure in the exhaust line
Faulty or inadequate exhaust pipes lead to dangerous situations, e.g., increased exhaust pressure.
There is a danger of bursting. Injuries caused by flying fragments, the escaping of high pressure, and
damage to the unit cannot be excluded.
►Open shut-off units immediately before or at the same time as starting the pump.
►Observe the maximum permissible pressure of 1,500 hPa (absolute).
►Observe the permissible pressures and pressure differentials for the product.
►Check the function of the exhaust line on a regular basis.
Risks during operation
WARNING
Danger of poisoning due to toxic process media escaping from the exhaust pipe
During operation with no exhaust line, the vacuum pump allows exhaust gases and vapors to escape
freely into the air. There is a risk of injury and fatality due to poisoning in processes with toxic process
media.
►Observe the pertinent regulations for handling toxic process media.
►Safely purge toxic process media via an exhaust line.
►Use appropriate filter equipment to separate toxic process media.
WARNING
Risk of poisoning from incorrect use of the gas ballast system
The gas ballast system of the scroll pump is vacuum sealed only when used in valid, snapped posi-
tions "0", "1" and "2". When operating the valves in intermediate stages, there is a risk that process
media can escape to the environment uncontrolled. When using toxic process media, there is a risk
of poisoning.
►Change the positions of the valve only for setting the gas ballast stages.
►Operate the gas ballast valve only in the snap positions.
WARNING
Mortal danger from electric shock during operation caused by transport damage
Damage to the transport packaging may favor the ingress of moisture or electrically conductive media
into the vacuum pump. Devices connected to the mains may still be live. There is a danger to life
from electric shock when making contact with live components.
►Before commissioning, convince yourself of the trouble-free state of your vacuum pump.
►Pay attention to residues of fluids or condensate.
►Do not put the vacuum pump into operation if there is obvious external damage.
WARNING
Risk of fatal injury due to electric shock caused by water damage
The device meets protection degree IP 20 according to EN 60529: 2014 and is not protected against
water ingress. Vacuum pumps operated on the floor lead to leakage current in penetrating and sur-
rounding water. There is a danger to life from electric shock when making contact with live water.
►In case of water damage, disconnect the complete power supply from the area affected.
►Provide an on-site electrical fuse protection (e.g. RCD) in hazardous areas.
►When selecting the installation location, observe potential damage from water.
Safety
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CAUTION
Danger of injury from bursting as a result of high pressure in the exhaust line
Faulty or inadequate exhaust pipes lead to dangerous situations, e.g., increased exhaust pressure.
There is a danger of bursting. Injuries caused by flying fragments, the escaping of high pressure, and
damage to the unit cannot be excluded.
►Open shut-off units immediately before or at the same time as starting the pump.
►Observe the maximum permissible pressure of 1,500 hPa (absolute).
►Observe the permissible pressures and pressure differentials for the product.
►Check the function of the exhaust line on a regular basis.
CAUTION
Danger of cut injuries from access to rotating parts
Transport damage on the air guide hood of the vacuum pump allows access to rotating and sharp
edged parts of the fan. Cut injuries from accidental contact are the result.
►Before commissioning, convince yourself of the trouble-free state of your vacuum pump.
►Do not put the vacuum pump into operation if there is obvious external damage.
CAUTION
Risk of injury from burns where hot process gases leak with no exhaust line
During operation with no exhaust line, the vacuum pump allows exhaust gases and vapors to escape
freely into the air. For processes with high temperatures, there is a risk of burns on hot exhaust gas-
es.
►If necessary, safely purge hot process gases via an exhaust line.
►Wear personal protective equipment if necessary.
Risks during maintenance
WARNING
Danger to life from electric shock during maintenance and service work
There is a danger to life from electric shock when making contact with live components that still exist
after the vacuum pump has been switched off.
►Disconnect the vacuum pump safely from the mains.
►Wait until the vacuum pump comes to a standstill (rotation speed = 0).
►After switching off the vacuum pump, wait another 5 minutes until the capacitors have dis-
charged.
WARNING
Health hazard through poisoning from toxic contaminated components or devices
Toxic process media result in contamination of devices or parts of them. During maintenance work,
there is a risk to health from contact with these poisonous substances. Illegal disposal of toxic sub-
stances causes environmental damage.
►Take suitable safety precautions and prevent health hazards or environmental pollution by toxic
process media.
►Decontaminate affected parts before carrying out maintenance work.
►Wear protective equipment.
Safety
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WARNING
Crushing and cutting danger on unprotected parts from unforeseeable automatic run-up dur-
ing maintenance.
During activities on exposed mechanical components, there is a risk of crushing or cut injuries from
sudden run-up.
►Switch off the vacuum pump before any maintenance work and work.
►Vent the vacuum pump to atmospheric pressure.
►Disconnect the vacuum pump safely from the mains.
►Secure the vacuum pump against re-start.
►Disconnect the mains cable from the vacuum pump.
Risks in the event of malfunctions
WARNING
Danger to life from electric shock in the event of a fault
In the event of a fault, devices connected to the mains may be live. There is a danger to life from
electric shock when making contact with live components.
►Always keep the mains connection freely accessible so you can disconnect it at any time.
CAUTION
Danger of burns on hot surfaces in case of malfunctions
Failure of the ventilation due to transport damage or disregarded previous damage lead to impermis-
sibly high temperatures. There is a danger of burns by accidental contact. There is a risk of property
damage to, and even destruction of the vacuum pump.
►Disconnect the vacuum pump from the mains.
►Allow the vacuum pump to cool down before carrying out any maintenance work.
►Wear personal protective equipment if necessary.
2.3 Safety precautions
Duty to provide information on potential dangers
The product holder or user is obliged to make all operating personnel aware of dangers
posed by this product.
Every person who is involved in the installation, operation or maintenance of the product
must read, understand and adhere to the safety-related parts of this document.
Infringement of conformity due to modifications to the product
The Declaration of Conformity from the manufacturer is no longer valid if the operator
changes the original product or installs additional equipment.
●Following the installation into a system, the operator is required to check and re-evalu-
ate the conformity of the overall system in the context of the relevant European Direc-
tives, before commissioning that system.
General safety precautions when handling the product
►Observe all applicable safety and accident prevention regulations.
►Check that all safety measures are observed at regular intervals.
►Do not expose body parts to the vacuum.
►Always ensure a secure connection to the earthed conductor (PE).
►Never disconnect plug connections during operation.
►Observe the above shutdown procedures.
►Before working on the vacuum pump, wait until complete standstill (rotation speed f = 0).
►Never put the device into operation with the vacuum connection open.
►Keep lines and cables away from hot surfaces (> 70°C).
►Never fill or operate the unit with cleaning agents or cleaning agent residues.
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►Do not carry out your own conversions or modifications on the unit.
►Observe the unit's protection degree prior to installation or operation in other environments.
2.4 Limits of use of the product
Installation location ● Indoors, protected against:
─ dust deposits
─ falling objects
─ fire-fighting water
● Outdoors, protected against:
─ falling objects
─ direct influence of weather such as rain, splash
water, strong drafts and sunlight
─ fire-fighting water
─ lightning strike
Air pressure 750 hPa to 1060 hPa
Installation altitude max. 2500 m
Recommended constant intake pressure 200 hPa1)
Recommended tank size for pumping out
atmospheric pressure
● HiScroll 6: 30 l
● HiScroll 12: 60 l
● HiScroll 18: 80 l
Installation surface flatness ±10 %
Rel. air humidity max. 90 %, non-condensing
Ambient temperature 5 ℃ to 40 ℃
Transport temperature -25 °C to 55 °C
Storage temperature -10 °C to 50 °C
Protection class I
Excess voltage category II
Permissible protection degree IP20
Housing type: NEMA Type 1 (according to UL 50E)
Degree of contamination 2
Tbl. 3: Permissible ambient conditions
2.5 Proper use
►Use the scroll pump only for generating vacuum.
►Use the scroll pump only in closed indoor areas.
►Use the scroll pump for the evacuation of dry and inert gases.
►Use the scroll pump with gas ballast to evacuate moist gases.
2.6 Foreseeable misuse
Improper use of the product invalidates all warranty and liability claims. Any use that is counter to the
purpose of the product, whether intentional or unintentional, is regarded as misuse.
●Transport, installation or operation of the vacuum pump in an impermissible spatial position
●Establishing the voltage supply without correct installation
●Connection of the vacuum pump to suitable operating voltages
●Pumping of explosive media
●Pumping of corrosive media
●Pumping of dust
●Pumping of fluids
●Operation with impermissible high gas throughput
●Operation with impermissible gas ballast quantities
●Operation with impermissibly set stages of the gas ballast valve
●Operation with excessively high irradiated heat output
1) Higher permanent intake pressures can lead to increased wear
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●Operation with impermissibly high exhaust pressure
●Operation in impermissible high magnetic fields
●Use for pressure generation
●Use in areas with ionizing radiation
●Use in potentially explosive areas
●Use in systems in which sporadic loads and vibrations or periodic forces act on the device
●Use of accessories or spare parts that are not listed in these instructions
●Separation, replacement or reuse of the electronic drive unit.
2.7 Personnel qualification
The work described in this document may only be carried out by persons who have appropriate profes-
sional qualifications and the necessary experience or who have completed the necessary training as
provided by Pfeiffer Vacuum.
Training people
1. Train the technical personnel on the product.
2. Only let personnel to be trained work with and on the product when under the supervision of
trained personnel.
3. Only allow trained technical personnel to work with the product.
4. Before starting work, make sure that the commissioned personnel have read and understood
these operating instructions and all applicable documents, in particular the safety, maintenance
and repair information.
2.7.1 Ensuring personnel qualification
Specialist for mechanical work
Only a trained specialist may carry out mechanical work. Within the meaning of this document, special-
ists are people responsible for construction, mechanical installation, troubleshooting and maintenance
of the product, and who have the following qualifications:
●Qualification in the mechanical field in accordance with nationally applicable regulations
●Knowledge of this documentation
Specialist for electrotechnical work
Only a trained electrician may carry out electrical engineering work. Within the meaning of this docu-
ment, electricians are people responsible for electrical installation, commissioning, troubleshooting, and
maintenance of the product, and who have the following qualifications:
●Qualification in the electrical engineering field in accordance with nationally applicable regulations
●Knowledge of this documentation
In addition, these individuals must be familiar with applicable safety regulations and laws, as well as the
other standards, guidelines, and laws referred to in this documentation. The above individuals must
have an explicitly granted operational authorization to commission, program, configure, mark, and earth
devices, systems, and circuits in accordance with safety technology standards.
Trained individuals
Only adequately trained individuals may carry out all works in other transport, storage, operation and
disposal fields. Such training must ensure that individuals are capable of carrying out the required activi-
ties and work steps safely and properly.
2.7.2 Personnel qualification for maintenance and repair
Advanced training courses
Pfeiffer Vacuum offers advanced training courses to maintenance levels 2 and 3.
Adequately trained individuals are:
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●Maintenance level 1
─Customer (trained specialist)
●Maintenance level 2
─Customer with technical education
─Pfeiffer Vacuum service technician
●Maintenance level 3
─Customer with Pfeiffer Vacuum service training
─Pfeiffer Vacuum service technician
2.7.3 Advanced training with Pfeiffer Vacuum
For optimal and trouble-free use of this product, Pfeiffer Vacuum offers a comprehensive range of
courses and technical trainings.
For more information, please contact Pfeiffer Vacuum technical training.
Safety
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3 Product description
3.1 Function
The Pfeiffer Vacuum scroll pump is a vacuum pump operating dry in a suction chamber for generating a
coarse or medium vacuum according to the physical pumping principle of a spiral vacuum pump. The
pump is equipped with an integrated drive and control unit. A three-stage gas ballast system supports
the prevention of condensation accumulating in the vacuum pump.
1
2
3
IN
OUT
A
B
CD
E
Fig. 2: Schematic compression cycle of scroll pumps
IN Gas inlet 2 Orbiting spiral
OUT Gas outlet 3 Gas compression
1 Stationary spiral A bis E Sections of increasing compression in the pumping cycle
Spiral vacuum pumps comprise a stationary and orbiting spiral. Varying cavities are generated at the
pump inlet by the movements of the orbiting spiral, which suck in the gas. The movement of the rotor
compresses the gas continuously until being expelled into the atmosphere at the pump outlet. The suc-
tion chamber is completely free from lubricants.
Product description
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123 4
5
6
7
8
91011
12
Fig. 3: HiScroll design
1 Protective cover for DN 25 vacuum connection 7 Interfaces of the electronic drive unit
2 Eye bolt 8 Mounting hole
3 Air guide hood 9 Base
4 Vacuum connection 10 Fan
5 Gas ballast valve 11 Protective cover for DN 25 exhaust
6 Exhaust connection 12 Mains supply plug
3.1.1 Drive
The vacuum pump is equipped with a highly efficient synchronous motor with sensor-free control, in ac-
cordance with the patented INFORM procedure according to Prof. Schrödl.
The integrated electronic drive unit permits the control and monitoring of pumping functions via the "re-
mote" interface using a display and control panel.
3.1.2 Cooling
●Air cooling
The electronic drive unit regulates the cooling capacity of the integrated fan depending on the cooling
requirement.
3.1.3 Shaft bearing
Ball bearing-mounted eccentric shaft. The dry running working chamber of the vacuum pump is separat-
ed hermetically from the shaft bearing.
●2 x deep groove ball bearings, maintenance-free
3.1.4 Gas ballast
An integrated gas ballast system serves the controlled supply of ambient air or inert gas into the suction
chamber. Gas ballast supports the reduction of condensate accumulating in the pumping system.
3.1.5 Pressure sensor
The vacuum pump is equipped with a pressure sensor in the pumping system, either directly or by way
of installation (optional accessory). The digital Piezo/Pirani sensor RPT 010 measures the intake pres-
sure of the vacuum pump. Certain functions described for the vacuum pump are only available with a
pressure sensor installed.
Product description
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