Pfeiffer Vacuum TC 110 RS User manual

OPERATING INSTRUCTIONS
EN
Translation of the Original
TC 110 RS
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.
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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
2 Safety 9
2.1 General safety information 9
2.2 Safety instructions 9
2.3 Safety precautions 10
2.4 Limits of use of the product 11
2.5 Proper use 11
2.6 Foreseeable improper use 11
2.7 Functional safety 11
3 Product description 13
3.1 Identifying the product 13
3.2 Product features 13
3.3 Function 13
3.4 Scope of delivery 13
3.5 Connectors 14
4 Installation 15
4.1 Connection diagram 15
4.2 "X3" connector 16
4.2.1 Voltage supply 17
4.2.2 Inputs 17
4.2.3 Outputs 18
4.2.4 RS-485 19
5 Interfaces 20
5.1 Interface "RS-485" 20
5.1.1 Connection options 21
5.1.2 Cross-linked via the RS-485 connection 22
5.2 Pfeiffer Vacuum protocol for RS-485 interface 22
5.2.1 Telegram frame 22
5.2.2 Telegram description 23
5.2.3 Telegram example 1 23
5.2.4 Telegram example 2 23
5.2.5 Data types 24
6 Parameter set 25
6.1 General 25
6.2 Control commands 25
6.3 Status requests 28
6.4 Set value settings 29
6.5 Additional parameters for the control unit 30
7 Operation 31
7.1 Configuring the connections with the Pfeiffer Vacuum parameter set 31
7.1.1 Configure digital inputs 31
7.1.2 Configure the digital outputs 31
7.1.3 Configure analog output 32
Table of contents
3/50

7.1.4 Configure accessory connections 32
7.1.5 Select interfaces 33
7.2 Operating modes 33
7.2.1 Gas type-dependent operation 33
7.2.2 Set value power consumption 34
7.2.3 Run-up time 34
7.2.4 Rotation speed switch points 34
7.2.5 Rotation speed setting mode 36
7.2.6 Standby 36
7.2.7 Confirming speed specification 36
7.2.8 Backing pump operating modes 37
7.2.9 Backing pump standby mode 38
7.2.10Operation with accessories 38
7.2.11Venting modes 39
7.3 Switching on the turbopump 39
7.4 Switching off the turbopump 39
7.5 Operation monitoring 40
7.5.1 Operating mode display via LED 40
7.5.2 Temperature monitoring 40
8 Recycling and disposal 41
8.1 General disposal information 41
8.2 Dispose of electronic drive unit 41
9 Malfunctions 42
9.1 General 42
9.2 Error codes 42
9.3 Warning and malfunction messages when operating with control units 45
10 Service solutions by Pfeiffer Vacuum 46
EC Declaration of Conformity 48
UK Declaration of Conformity 49
Table of contents
4/50

List of tables
Tbl. 1: Stickers on the product 8
Tbl. 2: Abbreviations used in this document 8
Tbl. 3: Permissible ambient conditions 11
Tbl. 4: Data for use in safety-related applications in accordance with IEC 61508
and IEC 62061
11
Tbl. 5: Data for use in safety-related applications in accordance with
EN ISO 13849-1
12
Tbl. 6: Features of the device variants 13
Tbl. 7: Connection description of the electronic drive unit 14
Tbl. 8: Connection assignment of the 15-pin connection "X3" 17
Tbl. 9: Features of the RS-485 interface 20
Tbl. 10: Terminal assignment of "RS-485" connection 20
Tbl. 11: Explanation and meaning of the parameters 25
Tbl. 12: Control commands 28
Tbl. 13: Status requests 29
Tbl. 14: Set value settings 30
Tbl. 15: Parameters for control unit functions 30
Tbl. 16: Configure parameters [P:062] and [P:063] 31
Tbl. 17: Configure parameters [P:019] and [P:024] 32
Tbl. 18: Configure parameter [P:055] 32
Tbl. 19: Configure accessory connections 33
Tbl. 20: Parameter [P:060] 33
Tbl. 21: Parameter [P:061] 33
Tbl. 22: Characteristic nominal rotation speeds of the turbopumps 37
Tbl. 23: Backing pump operating modes 37
Tbl. 24: Behavior and meaning of the LEDs on the electronic drive unit 40
Tbl. 25: Error messages of the electronic drive unit 44
Tbl. 26: Warning messages of the electronic drive unit 45
Tbl. 27: Warning and malfunction messages 45
List of tables
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List of figures
Fig. 1: Connection panel TC 110 RS 13
Fig. 2: Connection diagram for TC 110 RS with connection cable 16
Fig. 3: Connection diagram for TC 110 RS with external wiring 16
Fig. 4: Connection options via interface RS-485 21
Fig. 5: Cross-link via RS-485 connection using connection cables 22
Fig. 6: Schematic diagram of power characteristics, example of heavy gases
[P:027] = 0
34
Fig. 7: Rotation speed switch point 1 active 35
Fig. 8: Rotation speed switch points 1 & 2 active, [P:701] > [P:719] 35
Fig. 9: Rotation speed switch points 1 & 2 active, [P:701] < [P:719] 35
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.
1.2 Applicable documents
TC 110 RS 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
7/50

Note
Tip
1.4.3 Stickers on the product
This section describes all the stickers on the product along with their meanings.
Mod:
Mod.-Nr.:
Input:
Output:
Made in Germany 2019/01
TC 110 RS
PM C01 836 A
24V DC 6,3A
0-24V 10A
0-1500Hz
Ser.-Nr.:12345678
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
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
X3 15-pole D-Sub connecting socket on the electronic drive unit
Tbl. 2: Abbreviations used in this document
About this manual
8/50

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
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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
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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 IP30
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.
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 110 RS drive unit (electronic drive unit) executes the “Safe Limited Speed” safety function in
accordance with EN 61800-5-2. In the event of an excess rotation speed, the pump motor’s commuta-
tion 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 4.2 * 10-9 / h 3.7 * 10-4 20 a
Tbl. 4: Data for use in safety-related applications in accordance with IEC 61508 and
IEC 62061
Safety
11/50

Characteristics in accordance with EN ISO 13849-1
Characteristic Performance Level Category MTTFdAverage diagnostic coverage DC
Value PL d Cat. 3 high (134 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. There is no need
to perform a proof test.
Safety
12/50

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 110 RS 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 110 RS
Connection voltage TC 24 V DC
Connection panel RS-485
Turbopump HiPace 10, 30, 60, 80, 300, Splitflow 50, 80
Tbl. 6: Features of the device variants
3.3 Function
PV.can X3
RS485
12
3
5
acc. B2 acc. A2 acc. A1acc. B1
4
Fig. 1: Connection panel TC 110 RS
1 “PV.can” service connection 4 Accessory connections
2 "X3" connector 5 "RS-485" connector
3 LED operating mode display
Accessory connections
●Acc. A1 = Air cooling
●Acc. A2 = Backing pump
●Acc. B1 = Venting valve
●Acc. B2 = Heating
3.4 Scope of delivery
●TC 110 RS
●Operating instructions
Product description
13/50

3.5 Connectors
PV.can
M12 socket with screw lock and LED for the connection of an integrated pressure
measurement and for Pfeiffer Vacuum service purposes.
X3
D-sub socket with 15 pins for connection and configuration of a remote control.
RS-485
M12 bushing with screw lock for the connection of Pfeiffer Vacuum control panels or
PC. The use of a Y-connector permits the integration into a bus system.
accessory
M8 bushing with screw lock for the connection of Pfeiffer Vacuum accessories.
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
Product description
14/50

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 loads at X3
1. Note the maximum contact load of 6 mA per digital input
2. Note the maximum contact load of 50 mA per digital output.
3. Note the maximum contact load of 200 mA at the accessory outputs.
4. Do not exceed the total sum of the load of all connections of 200 mA.
Installation
15/50

1
8
9
15
X3
1
3
4
acc. B2
4
3
1
1
3
4
acc. A2
4
3
1
1
3
4
acc. B1
4
3
1
4
3
1
1
3
4
acc. A1
PV.can
RS 485 +
24 V DC**
RS 485 -
n. c.
GND**
RS485
2
3
4
5
6
7
10
11
8
9
12
13
14
15
1
DI Remote Priority
DI1
DI2
DI Pumping station
DI Standby
24 VDC* (V+)
Accessory A1
Accessory B1
DO1
DO2
AO1
RS 485 D+
RS 485 D-
+U
B
FE
1
2
3
4
5
n.c.
Accessory B2
GND*
n.c.
Accessory A2
GND*
n.c.
Accessory B1
GND*
n.c.
Accessory A1
GND*
3
4
2
1
+U
B
PE
A B C
DC in
A
B
C
2
3
4
5
6
7
10
11
8
9
12
13
14
15
1
S2
S1
Fig. 2: Connection diagram for TC 110 RS with connection cable
1
8
9
15
X3
1
3
4
ac c . B2
4
3
1
1
3
4
ac c . A2
4
3
1
1
3
4
ac c . B1
4
3
1
4
3
1
1
3
4
ac c . A1
PV. can
RS 485 +
24 V DC**
RS 485 -
n. c .
GND**
RS485
2
3
4
5
6
7
10
11
8
9
12
13
14
15
1
DI Remote Priority
DI1
DI2
DI Pumping station
DI Standby
24 VDC* (V+)
Accessory A1
Accessory B1
DO1
DO2
AO1
RS 485 D+
RS 485 D-
+U
B
FE
1
2
3
4
5
n.c.
Accessory B2
GND*
n.c.
Accessory A2
GND*
n.c.
Accessory B1
GND*
n.c.
Accessory A1
GND*
3
4
2
1
0 - 10 VDC
= 0 - 100 % *f
end
R ≥ 10kW
2
3
4
5
6
7
10
11
8
9
12
13
14
15
1
+U
B
PE
B
A
C
24 VDC / max. 200 mA
24 VDC / max. 200 mA
24 VDC / max. 50mA
24 VDC / max. 50mA
+24 VDC / 4.6 - 6.3 A ± 5 %
FE
AC C
AC C
DC out AC in
max. 6 mA
max. 6 mA
max. 6 mA
max. 6 mA
max. 6 mA
max. 6 mA
90 - 132 / 185 - 265 VAC
Fig. 3: Connection diagram for TC 110 RS with external wiring
4.2 "X3" connector
NOTICE
Property damage on the electronics
Separating the "X3" plug-and-socket connection with voltage supply switched on may lead to the de-
struction of electronic components.
►Always interrupt the voltage supply before disconnecting the “X3” connecting plug.
►Switch off the power supply pack.
►After switching off the power supply pack, wait until the residual load has dispersed completely
before disconnecting the plug-and-socket connection.
The 15-pin sub-D connection with the “X3” designation offers the possibility to operate the electronic
drive unit remotely. The following specifications are the factory settings for the electronic drive unit.
They can be configured with the Pfeiffer Vacuum parameter set.
Installation
16/50

Required tools
●Calibrated torque wrench
●Hexagon socket wrench, SW 4,5
Connecting remote control to "X3"
►Utilize the screened plug and cable.
►Secure the remote control to the X3 connection.
–Tightening torque of the spacer bolt of the D-sub socket: 0.25 - 0.3 Nm
Pin Assignment Description, factory setting
1Input1)2) Voltage supply for the electronic drive unit
2 DI remote priority Operation via “X3” interface (open: off; V+: set and takes priori-
ty over other digital inputs)
3 DI1 Enable venting (open: off, V+: on)
4 DI2 Heating (open: off, V+: on)
5 DI Pumping station open: off; V+: on and malfunction acknowledgment
6 DI stand-by
DI malfunction acknowl-
edgement
Standby rotation speed (open: off, V+: on)
Malfunction acknowledgement: V+ pulse (500 - 2000 ms)
7 +24 V DC* output (V+) Reference voltage for all digital inputs
8 DO1 GND: no, V+: yes (lmax = 50 mA/24 V)
9 DO2 GND: no, V+: yes (lmax = 50 mA/24 V)
10 Accessory output A1 open: off; V+: on
11 Accessory output B1 open: off; V+: on
12 AO1 Actual speed; 0 to 10 V DC corresponds to 0 to 100%:
RL > 10 kΩ
13 RS-485 D+
14 RS-485 D-
15 Ground (GND) Ground connection of the voltage supply; reference ground for
all digital inputs and outputs
Tbl. 8: Connection assignment of the 15-pin connection "X3"
4.2.1 Voltage supply
+24 V DC input/pin 1
The electrical connection to “X3” is made using connection cable from the Pfeiffer Vacuum accessory
program or, by the customer, at pin 1 and pin 15.
+24 V DC* output/pin 7
A connection with +24 V DC to pin 7 (active high) activates inputs 2 to 6. Alternatively, they can be acti-
vated via an external PLC. "PLC High level" activates and "PLC Low level" deactivates the functions.
●PLC High level: +13 V to +33 V
●PLC Low level: -33 V to +7 V
●Ri: 7 kΩ
●lmax < 200 mA (with RS-485, where present)
4.2.2 Inputs
The digital inputs at the “X3” connection are used to switch various electronic drive unit functions. Inputs
DI1 to DI2 are assigned functions in the factory. You can configure them via the RS-485 interface and
the Pfeiffer Vacuum parameter set.
1) TC 110: +UB = +24 V DC / 4.6 – 6.3 A ±10 %
2) TC 120: +UB = +48 V DC / 3.4 – 4.2 A ±10 %
Installation
17/50

DI remote priority/pin 2
V+: Connection “X3” has an operating supremacy before all other digital inputs.
open: Remote priority inactive
DI1 (release venting)/pin 3
V+: Enable venting (venting as per venting mode)
open: Venting blocked (no venting occurs)
DI2 (heater)/pin 4
V+: Heater on
open: Heater off
DI pumping station/pin 5
Activation of the turbopump and control of connected pumping station components (e.g. backing pump,
venting valve, air cooling). Any pending error messages are reset by eliminating the cause.
V+: Error acknowledgement and pumping station on
open: Pumping station off
DI standby malfunction acknowledgment/pin 6
In standby mode, the turbopump operates at a specified rotor speed < nominal rotation speed. The fac-
tory setting and recommended operation is 66.7 % of the nominal rotation speed.
V+: Standby activated
V+: Reset pending error messages when cause has been eliminated with a pulse of 500 to
2000 ms duration
open: Standby off, operation at nominal rotation speed
4.2.3 Outputs
The digital outputs at the “X3” connection have a maximum load limit of 24 V/50 mA per output. All out-
puts listed below are configurable with the Pfeiffer Vacuum parameter set via the RS-485 interface (de-
scription relates to factory settings).
DO1 (rotation speed switch point reached)/pin 8
Active high: After reaching the rotation speed switchpoint. Rotation speed switch point 1 has a factory
setting of 80% of the nominal rotation speed. This can be used, for example, for a “Turbopump ready for
operation” message.
DO2 (no error)/pin 9
When the supply voltage has been connected, digital output DO2 permanently outputs 24 V DC, which
means “no error”. Active low: in case of error (group error message).
Accessory outputs/pin 10 and pin 11
The accessory outputs have a maximum load limit of 24 V/200 mA. You can assign additional functions
to the accessory inputs and outputs via control units or the PC.
Factory setting
●Accessory output A1: Control of connected air cooling.
●Accessory output B1: Control of a connected venting valve in accordance with venting release via
input DI1.
AO1 analog output 0 to 10 V DC/pin 12
You can tap a speed-proportional voltage (0 to 10 V DC equals 0 to 100% × fnominal) at the analog output
(load R ≥ 10 kΩ). You can assign additional functions (optionally current/power) to the analog output via
control units or a PC.
Installation
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4.2.4 RS-485
Connecting RS-485 via D-Sub
►Connect a Pfeiffer Vacuum control unit or an external PC via pin 13 and pin 14 at the D-Sub con-
nection of the electronic drive unit.
Installation
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5 Interfaces
5.1 Interface "RS-485"
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.
"RS-485" connector on TC 110 RS
Set contacts pin 2, 5, 1 at connector "X3" or jumpers in connection channel to open to work
with "RS-485" connection on TC 110 RS drive electronics.
The interface with the designation “RS-485” is intended for the connection of a Pfeiffer Vacuum display
and control unit (DCU or HPU) or an external computer. The connections are galvanically safe and are
isolated from the maximum supply voltage for the electronic drive unit. The electrical connections are
optically decoupled internally.
Designation Value
Serial interface RS-485
Baud rate 9600 Baud
Data word length 8 bit
Parity none (no parity)
Start bits 1
Stop bits 1
Tbl. 9: Features of the RS-485 interface
Pin Assignment
1 2
34
5
1 RS-485: D+
2 +24 V output ≤ 210 mA loading capacity (with remote pin 1)
3 GND
4 RS-485: D-
5 not connected
Tbl. 10: Terminal assignment of "RS-485" connection
Interfaces
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