OETIKER FAST 3000 User manual

Translation of the original
instruction manual
Item No.: 08906397
Issue: 2311_V03_c
Software: V5.1
OETIKER Schweiz AG
Spätzstrasse 11
CH-8810 Horgen
Switzerland
OETIKER FAST 3000 Instruction manual

2www.oetiker.com Issue 08.23
OETIKER FAST 3000
CONTENT
08906397
Content
1 Information about this manual � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �5
1.1 Symbols and means of representation used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.2 Scope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.2.1 FAST 3000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.2.2 Rating plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1.3 Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1.4 Light curtain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
1.4.1 Requirements for the safety light curtain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
1.4.2 Mount safety light curtain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
1.5 Stickers on the FAST 3000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
1.6 Associated documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
2 Basic safety instructions � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 10
2.1 Using the Operating Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
2.2 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.3 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.4 Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.5 Special safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.6 Safe methods of working. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
2.7 Using the FAST 3000 via an external control system . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.8 Conversions, modifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.9 Qualified personnel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
2.10 Maintenance work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.11 Overload protection of the crimping cut-off head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.12 Noise level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3 Scope of supply of the FAST 3000 tool � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 16
3.1 Overview of the main components of the FAST 3000 . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.2 Available main configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.3 Optional extras . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4 Brief description of the FAST 3000 � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 20
4.1 Design of the tool mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.2 Design of the FAST3000 crimping cut-off head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
4.3 Two-hand control desk (option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5 Description of the process monitoring of the FAST 3000 24
5.1 Control of the closing force, description the of process parameters . . . . . . . . . . . . . . . . . . . 24
5.1.1 Functional description of control of the closing force . . . . . . . . . . . . . . . . . . . . . . 24
5.1.2 Closing Force . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.1.3 Closing force tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.1.4 Switch point reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.1.5 Speed phase 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.1.6 Speed phase 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.1.7 Closing force holding time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.1.8 Pulling force sensor check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Issue 08.23 3www.oetiker.com
OETIKER FAST 3000
CONTENT
08906397
5.2 Crimping monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.2.1 General information on the crimping force monitoring (CFM) . . . . . . . . . . . . . . . . . . 28
5.2.2 Mechanical design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.2.3 CFM: Typical OK force curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.2.4 CFM: Wear detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.2.5 CFM: Sample curves of crimping operations . . . . . . . . . . . . . . . . . . . . . . . . . . .33
5.3 Cut-off monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6 Working with the FAST 3000 � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 46
6.1 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
6.2 Connections to the control cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.3 Cable connections to the crimping force monitoring devices . . . . . . . . . . . . . . . . . . . . . . . 49
6.4 Switching on the FAST3000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
6.5 Correct positioning of the FAST 3000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
6.5.1 General instructions, positioning the FAST 3000 and WingGuard®clamp housing 52
6.5.2 Positioning the FAST 3000 installation tool using the alignment aid . . . . . . . . . . . . . . . 56
6.5.3 Dimensions for correctly positioning the FAST 3000 . . . . . . . . . . . . . . . . . . . . . . . 58
6.6 Normal operation (production) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
6.7 Laboratory mode (password-protected) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
6.7.1 One-hand operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
6.7.2 Foot pedal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
6.8 Special operating modes (password-protected) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
6.8.1 Deblocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
6.8.2 “Manual Drive” Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
6.8.3 Setting the force oset to zero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
6.8.4 Verifying the pulling force . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
6.8.5 Verifying the crimping force monitoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
6.8.6 Adjusting the crimping force monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
6.8.7 Changing the measurement program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
6.8.8 Loading new settings/measurement programs to the CFM units. . . . . . . . . . . . . . . . . 82
7 GUI (Graphical User Interface) � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 84
7.1 Touch Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
7.2 Computer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
7.3 GUI layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
7.4 Menu structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
7.4.1 Welcome screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
7.4.2 Closure data (a password is necessary to change the values) . . . . . . . . . . . . . . . . . . 87
7.4.3 Operating mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
7.4.4 Free state pull force test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
7.4.5 I/O test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
7.4.6 Logbook. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98
7.4.7 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
7.4.8 Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
7.4.9 Error list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
7.4.10 Access rights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
8 Assigning the IP address � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 115
8.1 Industrial communication X21/X22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
8.1.1 Setting the IP address for the EtherNet/IP . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
8.1.2 Setting the IP address for the Profinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
8.2 Touch Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

4www.oetiker.com Issue 08.23
OETIKER FAST 3000
CONTENT
08906397
9 Maintenance and replacement of parts � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 118
9.1 General safety instructions for maintenance and repair work . . . . . . . . . . . . . . . . . . . . . . 118
9.2 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
9.2.1 Before maintenance work. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
9.2.2 After maintenance work. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
9.2.3 Regular checking of the status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
9.2.4 Regular maintenance work / maintenance schedule . . . . . . . . . . . . . . . . . . . . . . 121
9.2.5 A-service - to be performed every 100,000 cycles . . . . . . . . . . . . . . . . . . . . . . . 122
9.2.6 B-service - to be performed every 200,000 cycles . . . . . . . . . . . . . . . . . . . . . . . 124
9.3 Replacing parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
9.3.1 Removing the crimping cut-o head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
9.3.2 Installing the crimping cut-o head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
9.3.3 Replacing the crimping jaws and/or the cut-o die. . . . . . . . . . . . . . . . . . . . . . . 127
9.3.4 Replacing the crimping wedge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
9.3.5 Replacing the crimping jaws pivot pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
9.3.6 Replacing the clamping levers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
9.4 Checking and adjusting the position of the strap detection sensor . . . . . . . . . . . . . . . . . . . 135
9.5 Setting the closing force sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
9.5.1 Checking the ease of movement of the clamping unit . . . . . . . . . . . . . . . . . . . . . 137
9.5.2 Adjusting the load cell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
9.6 Replacing the control cabinet or tool mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
9.7 Tools and consumable materials required for maintenance . . . . . . . . . . . . . . . . . . . . . . . 140
10 Controlling the FAST 3000 via an external PLC� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 149
10.1 Control via afield bus (Ethernet/IP or Profinet). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
10.1.1 Settings for the Ethernet/IP communication protocol . . . . . . . . . . . . . . . . . . . . . 149
10.1.2 Settings for the Profinet HW configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
10.1.3 Field bus mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
10.1.4 Addition to industrial communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
10.1.5 Handling Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
10.2 Overview of the state machine in the PLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
10.3 Control via 24-V I/O signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
11 Decommissioning, transport, storage, recommissioning 169
11.1 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
11.2 Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
11.3 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
11.4 Recommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
11.5 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
12 Technical data � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 171
13 Troubleshooting and error messages� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 172
13.1 General instructions in the event of errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
13.2 What should I do, if …? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
13.3 Error messages and their resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
13.3.1 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
13.3.2 Tool error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
13.3.3 Process errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
14 Appendix � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 195
15 Help and Support� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 196

5www.oetiker.com
OETIKER FAST 3000
INFORMATION ABOUT THIS MANUAL
Issue 08.23 08906397
1 Information about this manual
1�1 Symbols and means of representation used
Safety notices are used in this manual to warn of the risk of personal injury or property damage.
►Always read and observe these safety notices.
►Observe all instructions that are flagged with awarning symbol and warning text.
The following symbols are used in this Instruction Manual:
Hazardous situation�
Disregarding this instruction will lead to death or serious injury.
Indicates ahazard with medium risk, which can lead to death or serious injury!
Indicates ahazard with low risk, which can lead to medium or minor injuries!
Indicates adanger of damage to the device! Indicates information useful for operation!
Symbol Meaning
►... One-step instruction
1. ...
2. ...
3. ...
Multi-step instruction
►Carry out the steps in the order shown.
9... Requirement
• Necessary or labor-saving steps for the successful execution of an action.
Connecting Display or operating elements of the menu or the PC software are highlighted.
1�2 Scope
These Operating Instructions apply to all Oetiker FAST 3000 (stationary tool for installing strap clamps) and
describe the method of operation together with the correct procedures for commissioning, operation, maintenance,
decommissioning, recommissioning, storage and transport.
They contain important instructions for safe working procedures.
For the version FAST 3000 with Light curtain, refer to the corresponding leaflet “Instruction Manual FAST 3000 Light
Curtain”.
WARNING
DANGER
CAUTION
INDICATION

6www.oetiker.com
OETIKER FAST 3000
INFORMATION ABOUT THIS MANUAL
Issue 08.2308906397
1.2.1 FAST 3000
• Control cabinet
• Two-hand control desk (optional)
• Installation tool
• Connecting cable
• Touch panel (optional)
• Foot pedal (optional)
• Closing force verification unit (optional)
• Crimping force monitoring devices
• Emergency stop dongle
• Jaws kit for CFM verification on the FAST 3000 (optional)
Fig� 1: FAST 3000

7www.oetiker.com
OETIKER FAST 3000
INFORMATION ABOUT THIS MANUAL
Issue 08.23 08906397
1.2.2 Rating plates
Fig� 2: Rating plates
1�3 Abbreviations
N Newton s seconds
mm millimeters ms milliseconds
kg kilogram CFM Crimping Force Monitoring

8www.oetiker.com
OETIKER FAST 3000
INFORMATION ABOUT THIS MANUAL
Issue 08.2308906397
1�4 Light curtain
Fig� 3: Light curtain
1.4.1 Requirements for the safety light curtain
According to the following standards, atwo-channel safety light curtain must be used:
• EN ISO 13849-1:2015: at least Cat. 3, PL d
• EN 62061+A1:2009: at least Cat. 3, SIL 2
Possible safety light curtain: Keyence GL-R (GL-R08H)
Stopping time of the OETIKER FAST 3000
for calculating the safety distance from the
safety light curtain 0.15 s
1.4.2 Mount safety light curtain
NOTICE
►The safety distance of the safety light curtain must be determined by the integrator.
►EN ISO 13855:2010 must be observed.
Stopping time of the OETIKER FAST 3000 for calculating the safety distance from the safety light curtain: 0.15 s

9www.oetiker.com
OETIKER FAST 3000
INFORMATION ABOUT THIS MANUAL
Issue 08.23 08906397
1�5 Stickers on the FAST 3000
CAUTION
XComply with all safety stickers and always exercise great care when using the FAST 3000.
Fig� 4: Stickers (1, 2, 3) on the FAST 3000
1 Wear safety glasses!
2 Crush hazard!
3 Crush hazard!
Fig� 5: Stickers (1, 2) on the crimping cut‑off head and alignment aid
1 General warning signs: Never use aFAST 3000 without force sensors.
2 Warning sign: Magnetic field
3 Permanent magnet
1�6 Associated documents
• EC Declaration of Conformity, see Appendix ( Section 14 )
• Other associated documents, see Appendix ( Section 14 )

10 www.oetiker.com
OETIKER FAST 3000
BASIC SAFETY INSTRUCTIONS
Issue 08.2308906397
2 Basic safety instructions
2�1 Using the Operating Instructions
• Make sure that these Operating Instructions are always kept close at hand ready for use.
• Pass these Operating Instructions on to the next owner or user.
• Please read these Operating Instructions carefully before commissioning the FAST 3000 tool.
– Familiarize yourself with all settings and their functions.
– Anyone involved in setting up, commissioning, maintaining or repairing the unit must have read and
understood the Operating Instructions and in particular the safety instructions.
2�2 Intended use
CAUTION
The FAST 3000 with its associated parts is intended solely for the controlled closure of OETIKER
PG270 WingGuard®strap clamps. It may not be used to close clamps other than Oetiker
WingGuard®270 strap clamps.
• The unit may be used only for the intended purpose and under technically safe and fault-free conditions.
• Correct usage also covers observance of these Operating Instructions and compliance with the technical data.
• Any use not in accordance with the prescribed usage shall be regarded as incorrect usage.
• The use of the FAST 3000 in areas subject arisk of explosions is not permitted.
• The FAST 3000 can be used as astand-alone tool or be integrated into an assembly cell.
• If the FAST 3000 is integrated into an assembly cell it can be used without the optional two-hand control desk
and without the optional touch panel. In such cases the integrator is responsible for the safe integration of the
FAST 3000 into the assembly cell.
– For further information on the integration of the FAST3000 see Section 10.
• The installation of the light curtain is the responsibility of the operator.
Use other than for the intended purpose
The FAST 3000 is built to current technology and is safe in operation. Residual hazards remain if it used incorrectly or by
untrained personnel. The manufacturer bears no responsibility for injuries to personnel and damage to property arising
from improper use of the FAST 3000. In such cases the operating company bears sole responsibility.
Implemented safety concept for safe operation
The FAST 3000 is intended for operation by asingle operator. It is prohibited for athird person to start the clamping
cycle.
To exclude the risk that parts of limbs my be crushed between the WingGuard®clamp and the goods being strapped,
thetwo-hand control requires the use of two hands to start the clamping cycle, which corresponds to aPerformance
Level PL d to EN ISO 13849-1.
The clamping cycle is started by depressing the two start buttons simultaneously.
After 300 milliseconds the WingGuard®clamp is sufficiently closed that no parts of limbs can be inserted, the start
buttons can be released again once they have been depressed. This excludes the possibility of incorrect clamping that
might be caused by premature release of the start buttons.
In the event of the clamping drive starting up unexpectedly during the insertion phase, an additional sensor ensures that
the pulling unit is immediately disabled.