Pfeiffer Vacuum TC 400 PB User manual

OPERATING INSTRUCTIONS
EN
Translation of the Original
TC 400 PB
Electronic drive unit

Dear Customer,
Thank you for choosing a Pfeiffer Vacuum product. Your new electronic drive unit is designed
to support you in your individual applications with maximum performance and without
malfunctions. The name Pfeiffer Vacuum stands for high-quality vacuum technology, a
comprehensive and complete range of top-quality products and first-class service. With this
expertise, we have acquired a multitude of skills contributing to an efficient and secure
implementation of our product.
Knowing that our product must not interfere with your actual work, we are convinced that our
product offers you the solution that supports you in the effective and trouble-free execution 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.
2/56

Table of contents
1 About this manual 7
1.1 Validity 7
1.2 Applicable documents 7
1.3 Target group 7
1.4 Conventions 7
1.4.1 Instructions in the text 7
1.4.2 Pictographs 7
1.4.3 Stickers on the product 8
1.4.4 Abbreviations 8
1.5 Trademark proof 9
2 Safety 10
2.1 General safety information 10
2.2 Safety instructions 10
2.3 Safety precautions 11
2.4 Limits of use of the product 12
2.5 Proper use 12
2.6 Foreseeable improper use 12
2.7 Functional safety 12
3 Product description 14
3.1 Identifying the product 14
3.2 Product features 14
3.3 Function 14
3.4 Scope of delivery 14
3.5 Connectors 15
4 Installation 16
4.1 Connection diagram 16
4.2 "Profibus" connection 18
4.3 Connection "remote" 18
5 Interfaces 20
5.1 Profibus interface 20
5.1.1 Assign parameterization data 20
5.1.2 Profibus module "PPO1" 21
5.1.3 Profibus module "PPO3" 22
5.1.4 Profibus module "control/status word" 23
5.1.5 Profibus module "control/status byte" 23
5.1.6 Expanded diagnostics data 23
5.2 Pfeiffer Vacuum protocol for RS-485 interface 24
5.2.1 Telegram frame 24
5.2.2 Telegram description 24
5.2.3 Telegram example 1 24
5.2.4 Telegram example 2 25
5.2.5 Data types 25
6 Parameter set 26
6.1 General 26
6.2 Control commands 26
6.3 Status requests 29
6.4 Set value settings 30
6.5 Additional parameters for Profibus 31
6.6 Additional parameters for the control unit 31
7 Operation 33
7.1 Configuring the connections with the Pfeiffer Vacuum parameter set 33
Table of contents
3/56

7.1.1 Configure the "remote" connection 33
7.1.2 Configure accessory connections 34
7.1.3 Select interfaces 35
7.2 Operating modes 36
7.2.1 Gas type-dependent operation 36
7.2.2 Set value power consumption 36
7.2.3 Run-up time 37
7.2.4 Rotation speed switch points 37
7.2.5 Rotation speed setting mode 38
7.2.6 Standby 38
7.2.7 Confirming speed specification 39
7.2.8 Backing pump operating modes 39
7.2.9 Backing pump standby mode 40
7.2.10Operation with accessories 40
7.2.11Venting modes 41
7.3 Operation via "remote" connection 41
7.3.1 +24 V DC output/pin 1 41
7.3.2 Inputs 42
7.3.3 Outputs 43
7.3.4 Relay contacts (invertible) 44
7.3.5 RS-485 44
7.4 Switching on the turbopump 44
7.5 Switching off the turbopump 45
7.6 Operation monitoring 45
7.6.1 Operating mode display via LED 45
7.6.2 Temperature monitoring 46
8 Recycling and disposal 47
8.1 General disposal information 47
8.2 Dispose of electronic drive unit 47
9 Malfunctions 48
9.1 General 48
9.2 Error codes 48
9.3 Warning and malfunction messages when operating with control units 51
10 Service solutions by Pfeiffer Vacuum 52
EC Declaration of Conformity 54
UK Declaration of Conformity 55
Table of contents
4/56

List of tables
Tbl. 1: Stickers on the product 8
Tbl. 2: Abbreviations used in this document 8
Tbl. 3: Permissible ambient conditions 12
Tbl. 4: Data for use in safety-related applications in accordance with IEC 61508
and IEC 62061
12
Tbl. 5: Data for use in safety-related applications in accordance with
EN ISO 13849-1
13
Tbl. 6: Features of the device variants 14
Tbl. 7: Connection description of the electronic drive unit 15
Tbl. 8: Terminal lay-out of "Profibus" M12 connection 18
Tbl. 9: Terminal lay-out of 26-pin "remote" connection 19
Tbl. 10: Overview of the Profibus modules 20
Tbl. 11: Definitions of Profibus parameterization data 21
Tbl. 12: Profibus module designation in terms of parameterization data 21
Tbl. 13: Output and input data ("PPO1") 21
Tbl. 14: Request (output data "PPO1") 21
Tbl. 15: Response (input data "PPO1") 21
Tbl. 16: Error numbers (response "PPO1") 22
Tbl. 17: Control word/status word ("PPO1") 22
Tbl. 18: Output and input data ("PPO3") 22
Tbl. 19: Output and input data ("control/status word") 23
Tbl. 20: Control word/status word ("control/status byte") 23
Tbl. 21: Profibus: Expanded diagnostics data 23
Tbl. 22: Explanation and meaning of the parameters 26
Tbl. 23: Control commands 29
Tbl. 24: Status requests 30
Tbl. 25: Set value settings 31
Tbl. 26: Parameters for Profibus connection 31
Tbl. 27: Parameters for control unit functions 32
Tbl. 28: Configure digital outputs and relays [P:019] and [P:024], or [P:045], [P:046],
[P:047] and [P:028]
33
Tbl. 29: Configure digital inputs [P:062], [P:063] and [P:064] 34
Tbl. 30: Configure analog output [P:055] 34
Tbl. 31: Configure analog input [P:057] 34
Tbl. 32: Accessory connections 35
Tbl. 33: Parameter [P:060] 35
Tbl. 34: Parameter [P:061] 35
Tbl. 35: Characteristic nominal rotation speeds of the turbopumps 39
Tbl. 36: Backing pump operating modes 39
Tbl. 37: DI1 (release venting) / Pin 2 42
Tbl. 38: DI motor pump/pin 3 42
Tbl. 39: DI pumping station / Pin 4 42
Tbl. 40: DI standby/pin 5 42
Tbl. 41: DI2 (heater)/pin 6 42
Tbl. 42: DI3 (sealing gas)/pin 10 43
Tbl. 43: DI malfunction acknowledgment/pin 13 43
Tbl. 44: DI remote priority/pin 14 43
Tbl. 45: RS-485 interface, features 44
Tbl. 46: Behavior and meaning of the LEDs on the electronic drive unit 45
Tbl. 47: Behavior and meaning of the Profibus LED 46
Tbl. 48: Error messages of the electronic drive unit 50
Tbl. 49: Warning messages of the electronic drive unit 51
Tbl. 50: Warning and malfunction messages 51
List of tables
5/56

List of figures
Fig. 1: Standard panel TC 400 PB 14
Fig. 2: Connection diagram for the electronic drive unit 17
Fig. 3: Profibus address selector switch 18
Fig. 4: Illustration of the Profibus modules 20
Fig. 5: Schematic diagram of power characteristics, example of heavy gases
[P:027] = 0
36
Fig. 6: Rotation speed switch point 1 active 37
Fig. 7: Rotation speed switch points 1 & 2 active, [P:701] > [P:719] 37
Fig. 8: Rotation speed switch points 1 & 2 active, [P:701] < [P:719] 38
Fig. 9: Rotation speed setting mode 43
List of figures
6/56

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.
1.2 Applicable documents
TC 400 PB Operating instructions
Declaration of conformity A component of these instructions
You can find this document in the Pfeiffer Vacuum Download Center.
1.3 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.
1.4 Conventions
1.4.1 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.
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. ...
1.4.2 Pictographs
Pictographs used in the document indicate useful information.
About this manual
7/56

Note
Tip
1.4.3 Stickers on the product
This section describes all the stickers on the product along with their meanings.
TC 400 PB
Made in Germany
Input:
Output:
Ser.-No.: 12345678
Mod.:
M.-No.:
24 V / 48 V ± 10% 15 A
PM C01 840
0 - 48 V 12 A 0 - 1000 Hz
2020/08
Rating plate
The rating plate is located on the side of the electronic drive
unit.
warranty seal
Warranty seal
The product is sealed ex-factory. Damaging or removing a war-
ranty seal results in loss of the warranty.
Tbl. 1: Stickers on the product
1.4.4 Abbreviations
Abbreviation Meaning in this document
AI/AO Analog input/analog output
AIC Ampere Interrupting Capacity
DC Direct current
DI/DO Digital input/digital output
fRotation speed value of a vacuum pump (frequency, in rpm or Hz)
IElectric amperage
LED Light emitting diode
[P:xxx] Electronic drive unit control parameters. Printed in bold as a three-digit number in
square brackets. Frequently displayed in conjunction with a short description
Example: [P:312] software version
PElectrical power
PE Protective ground (earth)
RElectrical resistance
remote 26-pole D-Sub connecting socket on the turbopump electronic drive unit
RS-485 Standard for a physical interface for asynchronous serial data transmission (Recom-
mended Standard)
tTime
TC Electronic drive unit (turbo controller)
TMS Temperature management system
UElectric voltage
Tbl. 2: Abbreviations used in this document
About this manual
8/56

1.5 Trademark proof
●Profibus® is a registered trading name of Profibus Nutzerorganisation e.V.
About this manual
9/56

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 Low Voltage Directive 2014/35/EU. Where applicable, all life cycle phases of the prod-
uct were taken into account.
Risks during installation
DANGER
Danger to life from electric shock
Power supply packs that are not specified or are not approved will lead to severe injury to death.
►Make sure that the power supply pack meets the requirements for double isolation between
mains input voltage and output voltage, in accordance with IEC 61010-1 IEC 60950-1 and
IEC 62368-1.
►Make sure that the power supply pack meets the requirements in accordance with IEC 61010-1
IEC 60950-1 and IEC 62368-1.
►Where possible, use original power supply packs or only power supply packs that correspond
with the applicable safety regulations.
Safety
10/56

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 injury due to incorrect installation
Dangerous situations may arise from unsafe or incorrect installation.
►Do not carry out your own conversions or modifications on the unit.
►Ensure the integration into an Emergency Off safety circuit.
Risks in the event of malfunctions
WARNING
Risk of injury from parts moving after a power failure or troubleshooting
The "pumping station" function of the electronic drive unit will remain active after a power failure or if
errors occur that shut down the vacuum pump or the system. When power is restored or after ac-
knowledging a fault, the vacuum pump runs up automatically. There is a risk of injury to fingers and
hands if they enter the operating range of rotating parts.
►Always keep the mains connection freely accessible so you can disconnect it at any time.
►Remove present mating plugs or bridges from the electronic drive unit possibly before the mains
power returns, as these can cause an automatic run-up.
►Switch the pump off using the "Pumping station" function (parameter [P:010]).
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
►Use only power supply packs that comply with the applicable safety regulations.
►Observe all applicable safety and accident prevention regulations.
►Check that all safety measures are observed at regular intervals.
►Recommendation: Establish a secure connection to the earthed conductor (PE); protection class
III.
►Never disconnect plug connections during operation.
►Keep lines and cables away from hot surfaces (> 70 °C).
►Do not carry out your own conversions or modifications on the unit.
►Observe the unit protection class prior to installation or operation in other environments.
►Observe the protection class by ensuring the correct seating of the present sealing plugs.
►Disconnect the electronic drive unit only once everything has come to a complete standstill and
when the mains power supply of the turbopump is interrupted.
Safety
11/56

2.4 Limits of use of the product
Installation location weatherproof (internal space)
Air pressure 750 hPa to 1060 hPa
Installation altitude max. 5000 m
Rel. air humidity max. 80 %, at T ≤ 31 °C,
up to max. 50% at T ≤ 40°C
Protection class III
Excess voltage category II
Permissible protection degree IP54
Degree of contamination 2
Ambient temperature +5 °C to +40 °C
Tbl. 3: Permissible ambient conditions
Notes on ambient conditions
The specified permissible ambient temperatures apply to operation of the turbopump at
maximum permissible backing pressure or at maximum gas throughput, depending on the
cooling type. The turbopump is intrinsically safe thanks to redundant temperature monitor-
ing.
●The reduction in backing pressure or gas throughput permits operation of the turbo-
pump at higher ambient temperatures.
●If the maximum permissible operating temperature of the turbopump is exceeded, the
electronic drive unit first reduces the drive output and then switches it off where neces-
sary.
2.5 Proper use
●The electronic drive unit is used exclusively for the operation of Pfeiffer Vacuum turbopumps and
their accessories with a Profibus DP®bus system.
2.6 Foreseeable improper use
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, in particular:
●Connection to power supplies that do not comply with the provisions of IEC 61010 or IEC 60950
●Operation with excessively high irradiated heat output
●Use in areas with ionizing radiation
●Operation in explosion-hazard areas
●Use of accessories or spare parts that are not listed in these instructions
2.7 Functional safety
The TC 400 PB drive unit (electronic drive unit) executes the “Safe Limited Speed” safety function in
accordance with EN 61800-5-2. In the event of excess rotation speed, the vacuum pump motor’s com-
mutation switches off and brings the drive into a safe state.
Summary of characteristic data for use in safety-related applications:
Characteristics in accordance with IEC 61508 and IEC 62061
Characteristic Safety Integrity Level PFH PFDav Proof Test Interval T
Value SIL CL 2 1.1 * 10-8 / h 1 * 10-3 20 a
Tbl. 4: Data for use in safety-related applications in accordance with IEC 61508 and
IEC 62061
Safety
12/56

Characteristics in accordance with EN ISO 13849-1
Characteristic Performance Level Category MTTFdAverage diagnostic coverage DC
Value PL d Cat. 3 high (135 a) medium (90 % - < 99 %)
Tbl. 5: Data for use in safety-related applications in accordance with EN ISO 13849-1
●No proof test is required throughout the expected device lifetime of up to 20 years.
●If you calculate your safety application with the specified values for 20 years, you will need to de-
commission the safety controller and return it to the manufacturer after 20 years. You must not
perform a proof test.
Safety
13/56

3 Product description
3.1 Identifying the product
►To ensure clear identification of the product when communicating with Pfeiffer Vacuum, always
keep all of the information on the rating plate to hand.
►Learn about certifications through test seals on the product or at www.certipedia.com with compa-
ny ID no. 000021320.
3.2 Product features
The type TC 400 PB electronic drive unit is a fixed component of the turbopump. The purpose of the
electronic drive unit is to drive, monitor and control the entire turbopump.
Feature TC 400 PB
Connection voltage TC 24 V DC ±10 % 48 V DC ±10 %
Connection panel Profibus Profibus
Turbopump HiPace 300, 400, 700, 800 300, 400, 700, 800
Tbl. 6: Features of the device variants
3.3 Function
02
4
6
8
10
12
02
4
6
8
accessory
A
B
PV.can
remote
Profibus
DC in
address
x10 x1
2
134
5
6
7
Fig. 1: Standard panel TC 400 PB
1 Connection "accessory B" 5 Address selector switch
2 “PV.can” service connection 6 "remote" connection
3 "Profibus" connection 7 Connection "accessory A"
4 Connection "DC in"
3.4 Scope of delivery
●TC 400 PB
●Operating instructions
Product description
14/56

3.5 Connectors
DC in1)
Housing connector with bayonet mount for the voltage supply between Pfeiffer Vac-
uum power supply packs and the electronic drive unit.
accessory
M12 bushing with screw lock for the connection of Pfeiffer Vacuum accessories.
The use of a Y-connector permits the double pinout of a connector.
PV.can
M12 socket with screw lock and LED for the connection of an integrated pressure
measurement and for Pfeiffer Vacuum service purposes.
remote
High-density sub-D bushing with 26 pins for connection and configuration of a re-
mote control.
Profibus
M12 bushing (B-coded) with threaded coupling and LED for connecting Profibus
DP® bus systems.
Device socket on the rear side of the electronic drive unit for the connection of the
turbopump.
Tbl. 7: Connection description of the electronic drive unit
1) "DC in" and "accessory" are described in the operating instructions of the turbopump.
Product description
15/56

4 Installation
4.1 Connection diagram
DANGER
Danger to life from electric shock
Power supply packs that are not specified or are not approved will lead to severe injury to death.
►Make sure that the power supply pack meets the requirements for double isolation between
mains input voltage and output voltage, in accordance with IEC 61010-1 IEC 60950-1 and
IEC 62368-1.
►Make sure that the power supply pack meets the requirements in accordance with IEC 61010-1
IEC 60950-1 and IEC 62368-1.
►Where possible, use original power supply packs or only power supply packs that correspond
with the applicable safety regulations.
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 injury due to incorrect installation
Dangerous situations may arise from unsafe or incorrect installation.
►Do not carry out your own conversions or modifications on the unit.
►Ensure the integration into an Emergency Off safety circuit.
Contact load for the accessory connections to "accessory"
1. Note the maximum contact load of 200 mA per connection.
2. However, do not exceed the total sum of the load of all connections of 450 mA.
Potential-free connections
●All inputs and outputs of the "remote," "Profibus," and "PV.can" connections are gal-
vanically isolated from +UB.
●The contacts of relays 1, 2 and 3 are potential-free.
Installation
16/56

4 1
5
23
32
5
1 4
A C
B
1
9
10
18
19
26
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
A
B
C
1
2
3
4
5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Accessory BAccessory A
Remote
DC in
UB= + 24 / 48 V DC ± 10 %
PV.can
Profibus
n.c.
24 V DC
Acc. B1
FE
Acc. B2
+ UB
FE
GND
n.c.
24 V DC
Acc. A1
FE
Acc. A2
+ 24 V DC* out
DI Motor Pump
DI Pumping Station
DI Standby
DI1
DI2
DO1
DO2
DI3
AI+ 0-10 V DC
AI- GND
DI Error Ackn.
DI Remote Priority
Relay 1
Relay 1
Relay 1
Relay 2
Relay 2
Relay 2
Relay 3
Relay 3
AO1 / 0-10 V
DO Remote Prio Active
RS485 D-
RS485 D+
GND*
RxD/TxD-N
+ 5 V DC** out
RxD/TxD-P
n.c.
GND**
31
2
4
Fig. 2: Connection diagram for the electronic drive unit
Installation
17/56

4.2 "Profibus" connection
Pin Assignment
1
2
3
4
5
1 +5 V DC
2 RxD/TxD-N (received data and transmitted data, Line A)
3 GND (for Pin 1)
4 RxD/TxD-P (reception and transmission data, Line B)
5 not connected
Tbl. 8: Terminal lay-out of "Profibus" M12 connection
10
02
4
6
8x1
02
4
6
8x10
12
Fig. 3: Profibus address selector switch
Establishing a Profibus connection
1. Establish the Profibus connection in compliance with the applicable guidelines.
2. Use a suitable connection cable and components from the Pfeiffer Vacuum line of accessories.
3. Use a Profibus master to configure the Profibus interface with the GSD file included in the turbo-
pump shipment.
4. Select a valid and unique Profibus address at the address selector switches in decimal coding
from 1 to 125.
5. Avoid conflicts with the functions already available in module PPO1.
6. Fit the rubber plugs over the address selector switches straight and as deep as possible to ach-
ieve the stated protection class.
7. Restart the system by interrupting the supply voltage. This will validate the selected Profibus ad-
dress.
4.3 Connection "remote"
The 26-pin sub-D connection with the "remote" designation offers the possibility to operate the electron-
ic drive unit via remote control. The accessible individual functions are mapped to "PLC levels". The fol-
lowing specifications are the factory settings for the electronic drive unit. They can be configured with
the Pfeiffer Vacuum parameter set.
Required tools
●Calibrated torque wrench
●Hexagon socket wrench, SW 4,5
Connect remote control to "remote"
►Remove the remote plug from the electronic drive unit and connect a remote control.
►Use screened plugs and cables.
►Fasten the remote control to connector "remote".
–Tightening torque on the spacer bolts of the sub-D socket: 0,25 - 0,3 Nm
Installation
18/56

Pin Assignment Description, factory setting
19
10
18
1926
1 +24 V DC* output
(V+)
Reference voltage for all digital inputs and outputs
2 DI1 Enable venting (open: off, V+: on)
3 DI motor vacuum
pump
Drive motor (open: off; V+: on)
4 DI Pumping sta-
tion
open: off; V+: on and malfunction acknowledgment
5 DI Standby Standby rotation speed (open: off, V+: on)
6 DI2 Heater (open: off, V+: on)
7 AI+ rotation
speed setting
mode
Setpoint in rotation speed setting mode;
2 - 10 V DC corresponds to 20 - 100% of the nominal rotation
speed
8 DO1 Speed-control switchpoint reached;
GND: no, V+: yes (lmax = 50 mA/24 V)
9 DO2 GND: Fault, V+: no fault (Imax = 50 mA/24 V)
10 DI3 Sealing gas (open: off, V+: on)
11 AI rotation speed
setting mode
GND
Setpoint in rotation speed setting mode; GND
12 AO1 Actual speed; 0 to 10 V DC corresponds to 0 to 100%:
RL > 10 kΩ
13 DI malfunction
acknowledge-
ment
Malfunction acknowledgement: V+ pulse (min. 500 ms)
14 DI remote priority Operation via "remote" interface (open: off, V+: set and takes
priority over other digital inputs)
15 Relay 1 Connection with pin 16, if relay 1 inactive
16 Relay 1 Speed-control switchpoint reached;
Relay contact 1 (rpmmax = 50 V DC; Imax = 1 A)
17 Relay 1 Connection with pin 16, if relay 1 active
18 Relay 2 Connection with pin 19, if relay 2 inactive
19 Relay 2 No fault; relay contact 2 (rpmmax = 50 V DC; Imax = 1 A)
20 Relay 2 Connection with pin 19, if relay 2 active
21 Relay 3 Connection with pin 22, if relay 3 inactive
22 Relay 3 Warning; relay contact 3 (rpmmax = 50 V DC; Imax = 1 A)
23 DO remote priori-
ty
GND: off, V+: Remote priority active
24 RS-485 D+ in accordance with the specification and Pfeiffer Vacuum pro-
tocol
25 RS-485 D- in accordance with the specification and Pfeiffer Vacuum pro-
tocol
26 Earth (GND*) Reference earth for all digital inputs and outputs
Tbl. 9: Terminal lay-out of 26-pin "remote" connection
Installation
19/56

5 Interfaces
5.1 Profibus interface
Use Profibus modules
►Use precisely one of the following modules in each case.
012 3 4 5 6 7 8 910 11
0 1 2345 6 7 89 10 11
PPO1 I
O
0 1 23
0 1 2 3
PPO3 I
O
0 1
0 1
control-/status word I
O
control-/status byte 0
0
I
O
parameter channel
actual /
set speed
control-/
status bits
Fig. 4: Illustration of the Profibus modules
Module Description Input data (I)2) Output da-
ta (O)3)
PPO1 Control/status bits, rotation speed set and ac-
tual value, noncyclical parameter access
12 byte 12 byte
PPO3 Control/status bits, rotation speed set and ac-
tual value
4 byte 4 byte
Control/status
word
Control/status bits 2 byte 2 byte
Control/status
byte
1 byte 1 byte
Tbl. 10: Overview of the Profibus modules
●The data format is always "high word/byte first" (Motorola).
●All Pfeiffer Vacuum parameters of the data type 0 ,1 ,2 and 7 can be used for parameter channel
PPO1 and the parameterization data.
●Pfeiffer Vacuum parameters [P:303] and [P:360] to [P:369] provide additional error messages re-
spective to their coding.
●Pfeiffer Vacuum parameter [P:349] provides the value 0xAC20D630.
●You can influence access to the functions in the modules via the electronic drive unit's external
circuit (e.g. via "remote").
5.1.1 Assign parameterization data
Configuration requirement
●Once-only setting of a configuration which deviates from the delivery condition (="start-up configu-
ration")
●The definition of actions in the "fail-safe" Profibus state
●In case of threshold monitoring (e.g. failure of the master) (="fail-safe action")
Predefined parameterization data
●All parameters are populated with default values.
●The protocol adds 8 bytes of parameterization data for each parameter.
2) Input data = Data communication electronic drive unit to master (e.g. PLC)
3) Output data = Data communication master (e.g. PLC) to electronic drive unit
Interfaces
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