Festo VTEM Operating and installation instructions

Motion Terminal
VTEM
Description
Motion App #06
ECO drive
8071825
2017-12
[8071827]

VTEM
2Festo – VTEM-MA06-EN – 2017-12 –
Translation of the original instructions
VTEM-MA06-EN
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VTEM
Festo – VTEM-MA06-EN – 2017-12 – English 3
Table of Contents – VTEM
1 About this document 4.....................................................................
1.1 Further applicable documents 4..............................................................
1.2 Target group 4............................................................................
1.3 Product version 4.........................................................................
2 Function 5...............................................................................
2.1 Functional description 5....................................................................
2.1.1 Definition of the direction of movement / position of the drive 5.............................
2.1.2 Supply air and exhaust air 6..........................................................
2.2 Sensors required 6........................................................................
2.2.1 Allocation of the sensors 6...........................................................
2.3 Diagnostic messages and error elimination 6...................................................
2.4 System parameters used 7..................................................................
2.5 Application parameters used 7...............................................................
2.6 Defaults 7................................................................................
2.6.1 Motion App adjustment (app option) 7.................................................
2.6.2 Control of the Motion App (app control) 7...............................................
2.6.3 Setpoint value 2 8..................................................................
2.7 Return values 8...........................................................................
2.7.1 Status of the Motion App (app state) 8.................................................
2.7.2 Actual value 1, actual value 2 8........................................................
A Technical appendix 10......................................................................
A.1 Technical data 10...........................................................................

1 About this document
4Festo – VTEM-MA06-EN – 2017-12 – English
1 About this document
This document describes the functions and parameterisation of the Motion App specified on the title page. Informa
tion that is relevant to understanding the functions, as well as the steps and procedures that are required for carry
ing out parameterisation are described in other documents (è1.1 Further applicable documents).
1.1 Further applicable documents
Document Table of contents
Instructions for mounting Motion Terminal CPX, VTEM
(CPX_VTEM)
Instructions and important notes for mounting Motion
Terminal VTEM with connected CPX terminal
Instructions for use of Motion Terminal VTEM
(VTEM)
Instructions and important notes on handling,
installation, commissioning and maintenance of Motion
Terminal VTEM
Description of Motion Terminal VTEM,
function and parameterisation
(VTEM)
Detailed description of Motion Terminal VTEM, as well
as its function and parameterisation
CPX system description
(P.BE-CPX-SYS-…)
Information on the complete system of the CPX terminal
Tab. 1.1
For all available product documentation èwww.festo.com/pk
1.2 Target group
This document is intended for qualified personnel. Experience with electrical and pneumatic control systems is re
quired in order to understand this documentation.
1.3 Product version
This document refers to the following product versions:
Product Version
VTEM-… Motion Terminal VTEM from Revision 01
CTMM-S1-C Controller of Motion Terminal VTEM from Revision 01
Firmware Firmware of the CTMM controller from Version 4.0.2
VEVM-S1-27-… Valve for Motion Terminal VTEM from Revision 01
CTMM-S1-D-8E-M8-3 Digital input module for Motion Terminal VTEM from Revision 01
CTMM-S1-A-8E-A-M8-4 Analogue input module for Motion Terminal VTEM from Revision 01
Browser Firefox from Version 38
Tab. 1.2
The product version can be ascertained from the [System] [Information] page in the WebConfig interface of
the Motion Terminal.
Note
There may be an updated version of this document for these or later product versions.
 Check whether a corresponding version of this document is available (èwww.festo.com/sp).

2 Function
Festo – VTEM-MA06-EN – 2017-12 – English 5
2 Function
Motion App ID Motion App designation Motion App pictogram
06 ECO drive
Tab. 2.1
The ID of the Motion App must be transferred via the “valve mode” range of the process data (bits 5 … 0
in byte 0 (PDO)) in order to operate the Motion App on a valve (èDescription of Motion Terminal VTEM,
function and parameterisation).
2.1 Functional description
This Motion App enables energy-efficient cylinder movements, in which the speed is controlled by solely throttling
the supply air. Supply air flow control is specified by the user. The exhaust air flow control valve is fully open and
cannot be adjusted. The supply air side is blocked when the end position is reached, whereby the compressed air is
shut off and the current pressure head is maintained. If the drive leaves the end position due to leakage, it is actively
re-pressurised.
Note
The same restrictions apply for Motion App 06 as for conventional supply air flow control.
– The drive only has a low load rigidity and is heavily dependent on friction.
– Pneumatic cushioning has practically no effect in the end position (no pressure on the exhaust side).
 Observe the max. permissible impact energy of the drive.
 Provide external cushioning if necessary.
Note
The cylinder can move extremely quickly due to the fully opened exhaust.
 First, adjust the supply air value by making very small adjustments to the opening of the supply air
flow control.
 Exercise caution when making larger adjustments to the opening of the supply air flow control.
 Exercise caution when dealing with large loads.
 Only use the Motion App when the drive is in a horizontal mounting position.
Note
If the setting of the supply air flow control is very low, it can result in a jerky movement of the piston rod
(breakaway behaviour). In combination with larger loads, this can result in the end position being
reached too quickly and to hazards occurring.
 Provide external cushioning.
2.1.1 Definition of the direction of movement / position of the drive
The direction of movement and position of the drives that are controlled via the Motion Terminal are
generally described in this document and on the WebConfig interface with the terms “advance”
or “advanced” and “retract” or “retracted”, and all relate to piston rod cylinders with a piston rod
at one end.
The meaning of the terms can be transferred to other drives based on the pneumatic function.

2 Function
6Festo – VTEM-MA06-EN – 2017-12 – English
Term Port (4) Port (2) Switching position of the valve
Advance/advanced Pressurised Exhausted 14
Retract/retracted Exhausted Pressurised 12
Tab. 2.2
2.1.2 Supply air and exhaust air
The terms “supply air” and “exhaust air” are not permanently assigned to the working air ports, but refer to the re
spective active movement.
Movement Supply air through port Exhaust air through port
Advance (4) (2)
Retract (2) (4)
Tab. 2.3
2.2 Sensors required
The Motion App requires proximity sensors to detect the end positions of the drive.
The sensors must be positioned on the drive in such a way that they switch when the end position is reached.
2.2.1 Allocation of the sensors
The sensors are connected to the digital input module CTMM of the Motion Terminal. The inputs of the input mod
ules are thereby permanently assigned to the slots of the valves. The slots are numbered sequentially from left to
right, starting at the right of the controller with Slot 0.
– The inputs with even numbers are used for detecting the end position “retracted” ((2) pressurised, (4) ex
hausted, switching position 12).
– The inputs with odd numbers are used for detecting the end position “advanced” ((4) pressurised, (2) ex
hausted, switching position 14).
0 1 2 3 4 5 6 7
Inputs 01234567
Valve on slot 0123
End position at switching
position
12 14 12 14 12 14 12 14
Tab. 2.4
For Motion Terminals with more than 4 valves, Motion Apps that require input signals to function are op
erated only on valves on the first 4 slots from the left.
2.3 Diagnostic messages and error elimination
For information regarding VTEM diagnostic messages and error elimination èDescription of function and
parameterisation for Motion Terminal VTEM

2 Function
Festo – VTEM-MA06-EN – 2017-12 – English 7
2.4 System parameters used
None
2.5 Application parameters used
None
2.6 Defaults
The structure of the process data is described in the description “Function and parameterisation
of Motion Terminal VTEM”.
2.6.1 Motion App adjustment (app option)
Not used.
2.6.2 Control of the Motion App (app control)
Switching status of the air ports
The switching status at the air ports (2) and (4) of the valve is controlled with bits 7 … 6 in byte 0 (PDO).
PDO byte 0
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Possible switching statuses:
– Closed (G)
– Pressurised (B)
– Exhausted (E)
Function Switching
status
Replacement
symbol1)
Byte 0 Dec.
(4) (2) Bit 7 Bit 6
Stopping blocked G G 0 0 0
Advance B E 0 1 1
Retract E B 1 0 2
Exhaust E E 1 1 3
1) The symbol used in this column replaces the full bridge in the circuit diagram of valve VEVM and thus represents the function in a switched
state of the valve at the corresponding setpoint value (right-hand column).
Tab. 2.5

2 Function
8Festo – VTEM-MA06-EN – 2017-12 – English
2.6.3 Setpoint value 2
Degree of opening of the supply air flow control
The degree of opening of the supply air flow control can be adjusted within a range of 0.01 … 100 %
(è2.1 Functional description).
The throttle point is adjusted via bytes 5 … 4 (PDO).
PDO byte 5 PDO byte 4
Function Range of values Digit value Digit range Data type Byte (PDO)
Supply air 0.01 … 100 % 0.01 % 1 … 10000 × 0.01 % 16 bit signed integer 5 … 4
Tab. 2.6
2.7 Return values
2.7.1 Status of the Motion App (app state)
Status of the digital inputs (end position detection)
The status of the inputs of digital input module CTMM-…-D-…, which are assigned to the currently used valve
(è2.2.1 Allocation of the sensors), is represented via bits 2 and 0 in byte 1 (PDI).
PDI byte 1
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Position Bit 2 Bit 1 Bit 0
Status at the odd numbered input
(Corresponds to the position “Advance end position reached”1))
01
Status at the even numbered input
(Corresponds to the position “Retract end position reached”2))
01
1) (4) pressurised, (2) exhausted; switching position 14
2) (2) pressurised, (4) exhausted; switching position 12
Tab. 2.7
Warning
The presence of warnings in the diagnostic memory of the Motion Terminal is represented by bit 7 in byte 1 (PDI).
PDI byte 1
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Value Description
0No warning is present.
1There is a warning in the diagnostic memory of the Motion Terminal.
Tab. 2.8
For information regarding handling warnings and errors èDescription “Function and parameterisation of
Motion Terminal VTEM”
2.7.2 Actual value 1, actual value 2
Pressure
The pressure at port (4) and (2) is represented via bytes 5 … 4 and 3 … 2 (PDI).

2 Function
Festo – VTEM-MA06-EN – 2017-12 – English 9
PDI byte 5 PDI byte 4 PDI byte 3 PDI byte 2
(4) (2)
Port Range of values Digit value Digit range Data type Byte (PDI)
(2) –1000 … +32767 mbar 1 mbar –1000 … +32767 × 1 mbar 16 bit signed integer 3 … 2
(4) –1000 … +32767 mbar 1 mbar –1000 … +32767 × 1 mbar 16 bit signed integer 5 … 4
Tab. 2.9

A Technical appendix
10 Festo – VTEM-MA06-EN – 2017-12 – English
A Technical appendix
A.1 Technical data
Not relevant

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