Festo CMSX-...-C-U-F1-..., CMSX-S-A1-C-U-F1-D, CMSX-S-A1-C-U-F1-D-C, CMSX-S-A1-C-U-F1-D-A Series Manual

Positioner

CMSX-...-C-U-F1-...

Description

8046752

1506a

[8046754]

CMSX-...-C-U-F1-...

Symbols: Installation and commissioning may only be

Warning

performed in accordance with these instructions
by technicians with appropriate qualifications.

Caution

Note

Environment

Accessories

2 Festo – CMSX-...-C-U-F1-... – 1506a

CMSX-...-C-U-F1-...

English – Positioner CMSX-...-C-U-F1-...

Table of contents

1 Product description 5.......................................................

1.1 Overview 5................................................................

1.2 Layout 6..................................................................

2 Features 8................................................................

3 Function and application 8...................................................

3.1 System structure 9..........................................................

3.2 Product variants 10..........................................................

3.2.1 CMSX-S-...-D-... (rotary, double-acting) 10................................

3.2.2 CMSX-S-...-S-... (rotary, single-acting) 11.................................

3.2.3 CMSX-SE-...-D-... (linear, double-acting) 11...............................

4 Transport and storage 13.....................................................

5 Requirements for product use 13...............................................

6 Installation 14..............................................................

6.1 Mechanical installation 14.....................................................

6.1.1 CMSX-S-... (rotary) 14................................................

6.1.2 CMSX-SE-... (linear) 16...............................................

6.2 Pneumatic installation 17.....................................................

6.3 Electrical installation 18.......................................................

7 Commissioning 24...........................................................

7.1 Prerequisites 24.............................................................

7.2 Checking operating conditions 24...............................................

7.3 Switch-on sequence 24.......................................................

7.4 Switch-on behaviour at initial start-up 25.........................................

7.5 Moving in the menu system 26.................................................

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CMSX-...-C-U-F1-...

7.6 Menu structure 27...........................................................

7.6.1 Menu structure for semi-rotary drives 27.................................

7.6.2 Menu structure for linear drives 28......................................

7.6.3 Basic menu level 29..................................................

7.6.4 Menu level 32......................................................

7.6.5 Menu SENSOR (1) 33................................................

7.6.6 Menu configuration (2) 34.............................................

7.6.7 Menu parameter (3) 38...............................................

7.6.8 Characteristic curve menu (4) 43.......................................

7.6.9 Information menu (5) 45..............................................

7.6.10 Initialization menu (6) 45.............................................

7.7 Commissioning steps 47......................................................

7.7.1 Performance test and check of the sensing range 47........................

7.7.2 Initialisation 49.....................................................

7.7.3 Performance of automatic initialization (Autoinit) 50.......................

7.7.4 Executing the user-guided initialization (Userinit) 52.......................

7.7.5 Set parameters 53...................................................

7.7.6 Conclusion of commissioning 54........................................

8 Operation 54...............................................................

9 Maintenance and care 54.....................................................

10 Disassembly 55.............................................................

11 Replacement and repair 56....................................................

12 Fault clearance 57...........................................................

13 Technical data 58............................................................

Index 60........................................................................

4 Festo – CMSX-...-C-U-F1-... – 1506a English

CMSX-...-C-U-F1-...

1 Product description

1.1 Overview

123 45 6

3

9aJaAaB

1 Housing cover
2 Inspection window for LCD display
3 Housing screws
4 Blanking plug
5 Cable entry with cable connector
6 Mounting thread

Fig. 1 Operating elements and connections CMSX-S-... (rotary)

7 Shaft
8 Mechanical coupling
9 Back plate
aJ Housing
aA Pneumatic connections (G1/8)
aB Earth terminal

6

7

8

666

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CMSX-...-C-U-F1-...

123 45 6

3

aJ

1 Housing cover
2 Inspection window for LCD display
3 Housing screws
4 Cable entry with cable connector
5 Cable entry with cable connector

Fig. 2 Operating elements and connections CMSX-SE-... (linear)

89

7

6 Mounting thread
7 Base plate
8 Housing
9 Pneumatic ports (G1/8)
aJ Earth terminal

6

666

1.2 Layout

The positioner CMSX has a sturdy plastic housing. It includes all necessary components for regulation
of double- and single-acting pneumatic semi-rotary drives and double-acting pneumatic linear drives.
These include:
– Two valves (CMSX-S-...-S-..., single-acting) or four valves (CMSX-...-D-..., double-acting) with con

nection block and pneumatic ports (è Fig. 1, aA and Fig. 2, 9 ) as a positioning system for the
pneumatic drive

– A shaft towards the outside (è Fig. 1, 7 ) with potentiometer as feedback system
– Equipment electronics with microprocessor and electronics for signal processing and control
– Terminals and cable entry with cable connector (è Fig. 1, 5 and Fig. 2, 4 and 5 ) for the electrical

connection

– Two-line LCD display (è Fig. 1, 2 and Fig. 2, 2 )
– 3 keys on the circuit board (è Fig. 1, 4, 5 and 6 ) under the housing cover (è Fig. 1, 1 ).
Besides the cable entry with cable connector, the housing is equipped with a blanking plug
(è Fig. 1, 4) – for mounting of an additional cable entry with cable connector (optional). Located on

6 Festo – CMSX-...-C-U-F1-... – 1506a English

CMSX-...-C-U-F1-...

the opposite side are the earth terminal (è Fig. 1, aB and Fig. 2, aA ) and the pneumatic ports
(è Fig. 3, aA and Fig. 2, 9 ) with supply port, working ports and exhaust port.
Under the housing cover is the printed circuit board with the device electronics. Located on the printed­circuit board are:
– The two-line LCD display
– 3 keys for configuration and commissioning
– Terminal strips for electrical connection.

12

7

3456

1 LCD display
2 Terminal strip (pin 1 ... 14)
3 Terminal strip (pin 15, 16)

5 Sub key
6 Add key
7 Earth terminal

4 Set key

Fig. 4 Operating elements and connections in the device (example of a linear version)

With the Add, Sub and Set keys, configuration and commissioning can be carried out in a menu-driven
manner. During commissioning, the setpoint values can be specified through keys as needed.
The two-line LCD display shows all texts in English as short texts. A maximum of 8 characters per line
can be shown.

Festo – CMSX-...-C-U-F1-... – 1506a English 7

CMSX-...-C-U-F1-...

2 Features

Feature Type code Specification

Type CMSX Positioner for process automation
Design S Positioner, path/angle measurement integrated

SE Positioner, path/angle measurement external
Display type C LCD, backlit
Setpoint value U Configurable (0 …10 V , 0 ... 20 mA, 4 … 20 mA)
Position feedback F1 4 … 20 mA
Function D Double-acting

S Single-acting
Standard nominal flow rate 50 50 l/min

130 130 l/min
Safety function A Open or close in case of breakdown

2)

C Maintain position

1) Failure of the operating voltage supply

2) Block air for semi-rotary drive on both sides

in case of breakdown

1)

1)

Tab. 1 Type code CMSX (e.g. CMSX-S-C-U-F1-D-50-A)

3 Function and application

The positioner is intended for position control of pneumatic semi-rotary drives and double-acting linear
drives in process automation systems.
The product is intended for use in industrial environments. Outside of industrial environments, e.g. in
commercial and mixed-residential areas, actions to suppress interference may have to be taken.
Appropriate for operation are drives with a mechanical interface in accordance with VDI/VDE Direct
ive 3845. Appropriate mechanical mounting adapters are required for mounting (accessories
è www.festo.com/catalogue).
The CMSX enables simple and efficient position control based on the PID control algorithm. Positions
are specified via an analogue setpoint signal (0 V … 10 V or 0 mA … 20 mA or 4 mA … 20 mA). The integ
rated potentiometer senses the current position of the drive and forwards the measured value to the
internal regulator. The regulator compares the setpoint value specified by analogue means to the
measured value and actuates the internal valves accordingly by means of pulse-width modulation
(PWM).

8 Festo – CMSX-...-C-U-F1-... – 1506a English

CMSX-...-C-U-F1-...

3.1 System structure

The following figure shows the basic system structure of a process valve unit, comprising a CMSX posi
tioner and a semi-rotary drive with process valve.

7

1

2

3

4

5

6

1 Higher-order system (PLC/IPC or external

setpoint generator)

2 CMSX positioner
3 Mechanical coupling

Fig. 5 System structure with semi-rotary drive (example)

Positions are specified through an analogue setpoint signal via a master PLC/IPC or manually on-site
via an external setpoint generator (è Fig. 5, 1 ).
The positioner with potentiometer and fast-switching valves (è Fig. 5, 2 ) and the semi-rotary drive
with process valve (è Fig. 5, 5 , 6 ) are connected to each other in such a way that a closed control
circuit results. In this control circuit, the position of the drive represents the controlled variable. The
potentiometer registers permanently the position of the drive (actual value of the controlled variable)
and transmits this to the controller as an electric signal. It compares the analogue specified setpoint
position (reference variable) to the current position and calculates from this the positioning signals
(manipulated variable – pulse-width modulation) for the fast-switching valves. The fast-switching
valves control the drive by pressurizing and venting the cylinder chambers.

Festo – CMSX-...-C-U-F1-... – 1506a English 9

4 Mounting adapter – example
5 Semi-rotary drive – example (here DFPB)
6 Process valve – example (here VZBA)
7 Air – port 2 and 4

CMSX-...-C-U-F1-...

3.2 Product variants

The product variants CMSX...-A and CMSX...-C are equipped with different valves. If the operating
voltage supply fails, the valves return to the normal position. If the compressed air supply is switched
on and the operating voltage supply fails, the positioner will react differently depending on the product
variants used.
If the operating voltage supply is switched back on, the last operating status is effective again immedi
ately. If the regulator is activated, the current setpoint value is valid again immediately.

3.2.1 CMSX-S-...-D-... (rotary, double-acting)

For the product variant
CMSX...-A (è Fig. 6, 1 ) work
ing port 2 (è Fig. 6, 2 )is pres
surized and working port 4
(è Fig. 6, 4 )is exhausted.
Dependent on the tubing con
nection of the CMSX with the
drive (è Fig. 6, 3 ), the pro
cess valve is opened or closed.

13

24

V1 V4V3V2

33

Fig. 6 Neutral position for CMSX-S-...-D-...-A

For the product variant
CMSX...-C (è Fig. 7, 1 ) the

13

24

working ports 2 and 4
(è Fig. 7, 2 and 4 ) are pres
surized in order to maintain the
current position of the drive
(è Fig. 7, 3 ).

V1 V4V3V2

33

Fig. 7 Neutral position for CMSX-S-...-D-...-C

10 Festo – CMSX-...-C-U-F1-... – 1506a English

CMSX-...-C-U-F1-...

3.2.2 CMSX-S-...-S-... (rotary, single-acting)

For the product variant
CMSX...-A (è Fig. 8, 1 ) the

13

connected working port 2
(è Fig. 8, 2 )is pressurized or
exhausted. Working port 4 is
sealed and cannot be used.
Dependent on the tubing con
nection of the CMSX with the
drive (è Fig. 8, 3 ), the process
valve is opened or closed.

Fig. 8 Neutral position for CMSX-S-...-S-...-A

3.2.3 CMSX-SE-...-D-... (linear, double-acting)

For the product variant
CMSX...-A (è Fig. 9, 1 ) work

13

ing port 2 (è Fig. 9, 2 )is pres
surized and working port 4
(è Fig. 9, 4 )is exhausted.
Dependent on the tubing con
nection of the CMSX with the
drive (è Fig. 9, 3 ), the process
valve is opened or closed.

V1 V4V3V2

2

V2V1

3

24

33

Fig. 9 Neutral position for CMSX-SE-...-D-...-A

Festo – CMSX-...-C-U-F1-... – 1506a English 11

CMSX-...-C-U-F1-...

For the product variant
CMSX...-C (è Fig. 10, 1 ) the
working ports 2 and 4
(è Fig. 10, 2 and 4 ) are pres
surized in order to maintain the
current position of the drive
(è Fig. 10, 3 ).

13

24

V1 V4V3V2

33

Fig. 10 Neutral position for CMSX-SE-...-D-...-C

12 Festo – CMSX-...-C-U-F1-... – 1506a English

CMSX-...-C-U-F1-...

4 Transport and storage

– Comply with all legal requirements for the handling of hazardous substances and the transport of

dangerous goods.
For return to Festo è Chapter 5.

– Store the product in a cool, dry, UV- and corrosion-protected environment. Ensure storage times are

short.

5 Requirements for product use

 Installation and commissioning is to be carried out only by qualified personnel, in accordance with

the documentation.
 The product may only be used in its original status without unauthorised modifications.
 Only use the product if it is in perfect technical condition.
 Observe the product labelling.
 Comply with all applicable national and international regulations.
 Only use compressed air in accordance with specifications (è Technical data).
 The supplied cable connector is used only for cable throughfeed. To ensure the specified degree of

protection IP65, seal each cable entry tight (cable connector, blanking plug).

Return to Festo

Hazardous substances can endanger the health and safety of personnel and cause damage to the envir
onment. To prevent hazards, the product should only be returned upon explicit request by Festo.
– Consult your regional Festo contact.
– Complete the declaration of contamination and attach it to the outside of the packaging.
– Comply with all legal requirements for the handling of hazardous substances and the transport of

dangerous goods.

Festo – CMSX-...-C-U-F1-... – 1506a English 13

CMSX-...-C-U-F1-...

6 Installation

Note

Installation should only be conducted by qualified specialized personnel

6.1 Mechanical installation

Note

 Protect the underside of the device against splash water, moisture and humidity by

selecting an appropriate mounting position.

6.1.1 CMSX-S-... (rotary)

Note

 Observe the direction of rotation of the semi-rotary drive.
 Only use appropriate mounting adapters.

(Accessories è www.festo.com/catalogue)

The angle position of the semi-rotary drive is sensed by the integrated potentiometer through the shaft
of the positioner. The shaft of the positioner can be turned in any way, since it does not have a mechan
ical stop. But the permissible sensing range is 100°. The sensing range and correct alignment of the
shaft of the positioner is depicted on the underside of the housing.

1 2

3

2

1 Flat spot of the shaft
2 Identification of the alignment of the flat

spot

Fig. 11 Identification of the sensing range (underside of the housing)

14 Festo – CMSX-...-C-U-F1-... – 1506a English

3 Identification of the sensing range

CMSX-...-C-U-F1-...

During mounting, the shaft of the positioner with coupling and the drive shaft must be connected so
that the swivel angle of the drive lies within the sensing range.

Direct mounting

For attachment, the positioner has a mounting hole pattern in accordance with VDI/VDE Directive

3845. It can be mounted in any position. The positioner is mounted directly to the semi-rotary drive
with a mounting adapter. The shaft of the positioner is connected through the mechanical coupling to
the shaft of the semi-rotary drive (è Fig. 12).
 Use only appropriate mounting adapters. Please select the corresponding accessories from our

catalogue (accessories è www.festo.com/catalogue).

1. Determine the direction of rotation of the

semi-rotary drive.

2. Close process valve.

3. Switch off the compressed air and the

power supply.

4. Fasten the mounting adapter to the

positioner.

– 4 housing screws 4

– Tightening torque 1.5 Nm ± 20 %.

5. Secure the mechanical coupling 5 to the

shaft of the positioner 1.

– 2 threaded pins 6

– Tightening torque 0.5 Nm ±10 %.

6. Place the positioner with mounting adapter

and coupling on the semi-rotary drive and

align. The swivel angle of the drive must be

within the sensing range of the positioner

(è Fig. 12).

7. Secure the positioner with mounting

adapter to the semi-rotary drive.

– 4 housing screws 3

– Tightening torque 3 Nm ± 20 %.

1

2

3

4

5

6

7

Fig. 12

Mechanical installation CMSX-S-...
(rotary)

Festo – CMSX-...-C-U-F1-... – 1506a English 15

CMSX-...-C-U-F1-...

6.1.2 CMSX-SE-... (linear)

1. Close process valve.

2. Switch off the compressed air and the power
supply.

3. Secure the mounting adapter 1 to the
positioner.
– 4 housing screws 3
– Tightening torque 1.5 Nm ± 20 %.

4. Secure the housing (flange socket)5 to the

linear drive 6.
– 4 mounting screws 4
– Tightening torque è Tab. 2

5. Secure the mounting adapter 1 to the housing

(flange socket)5.
4 mounting screws 4
Tightening torque 1.5 Nm ± 20 %.

6. Secure the positioner with mounting adapter to

the housing (flange socket)
– 4 mounting screws 2
– Tightening torque 3 Nm ± 20 %.

1

2

3

4

5

6

Fig. 13 Mechanical installation CMSX-SE-...

(linear)

Design DFPI-100-...-E-P-G2 to

DFPI-160-...-E-P-G2

DFPI-200-...-E-P-G2 to
DFPI-320-...-E-P-G2

Tightening torque [Nm] 2.7 ± 10 % 6 ± 10 %

Tab. 2

16 Festo – CMSX-...-C-U-F1-... – 1506a English

CMSX-...-C-U-F1-...

6.2 Pneumatic installation

Caution

Despite switched-off compressed air supply – dependent on the product variant – one
or both working ports of the positioner can remain under pressure.
 Vent the working ports with the help of the Sensor function (menu 1) before you

remove the tubing lines (è Section 7.6.5).

Note

Use suitable fittings (G1/8) and tubes.
Recommendation: Push-in fittings of type QS-1/8-...-I and tubes of type PUN.

Prior to the pneumatic installation:

1. Ensure there is no voltage or pressure applied.

2. Secure the system against being switched back on.

65

1

2

4

1 Supply port
2 Working port 2
3 Working port 4

Fig. 14 Pneumatic connections

1. Switch off the compressed air and power supplies.

2. Connect working port 2 2 and working port 4 3 to the working ports of the semi-rotary drive.

Only connect working port 2 for single-acting drives.

– Keep tubing short.

3. Connect supply port 1 to the compressed air source.

4. Screw an appropriate silencer into the exhaust port 6.

Festo – CMSX-...-C-U-F1-... – 1506a English 17

3

4 QS push-in fitting (accessories)
5 Silencer (accessory)
6 Exhaust port

CMSX-...-C-U-F1-...

6.3 Electrical installation

Warning

Electric voltage.
Injury due to electric shock.
 Switch off the power supply before opening the device.

Note

Electrostatically sensitive devices.
Damage to the internal electronics due to electrostatic discharge.
 Observe the handling specifications for electrostatically sensitive devices.
 Ensure assembly personnel are electrostatically discharged.

Note

The IP 65 degree of protection depends on the type of electrical connection. Inappropri
ate cables or an incorrect installation will reduce the degree of protection of the posi
tioner.

Note

Long signal lines reduce the resistance to interference.
 Keep signal lines shorter than 30 m.

Note

The signal value is unstable if different voltage sources are used for the signal value and
power supply.
 Apply a bridge to the earth terminals of the signal value and the power supply pin 4

and pin 6.

18 Festo – CMSX-...-C-U-F1-... – 1506a English

CMSX-...-C-U-F1-...

4

6

1

1 Pin numbering of the terminal strips

Fig. 15 Stabilization of the signal value by a bridge

1. Switch off the power supply and the compressed air supply.

2. Loosen the housing screws (è Fig. 1, 3 ). Remove the cover of the housing.

3. Guide the electric connecting cable through the cable connector to the terminal strips.
– Outside diameter of the electric connecting cable: 10 ... 14 mm.

– Conductor cross-section: Max. 2.5 mm²
– Use wire end sleeves.

Note

Installation errors can damage the electronics and fast-switching valves or cause mal
functions.
 Leave the cable at pin 9 unchanged (è Tab. 4). This cable is internally connected to

the earth terminal at the plant (è Fig. 16, 2 ).

4. Wire connections (è Tab. 4 ) .
– Tightening torque: Max. 0.6 Nm.

5. Connect the earth terminal (è Fig. 16, 2 ) with low impedance (short cable with large cross section)
to the earth potential.

6. Tighten the union nut on the cable connector.
– Tightening torque: 2 Nm.

7. If commissioning is to be carried out immediately after installation, leave the cover dismounted.

8. Place the housing cover in position and tighten the 4 housing screws (è Fig. 1, 3 ).
– Observe the correct position of the seals.

– Tightening torque: 1.5 Nm.

Festo – CMSX-...-C-U-F1-... – 1506a English 19

CMSX-...-C-U-F1-...

2

1

16 15

1 Pin numbering of the terminal strips 2 Earth terminal

Fig. 16 Pin numbering and earth terminal

Pin

Designation Description

1 Vsp+ Voltage input signal + Input setpoint value
2 Vsp- Voltage input signal -

0...10 V

3 Isp+ Current input signal + Input setpoint value
4 Isp- Current input signal -

0 ... 20 mA, 4 ... 20 mA

5 +24 V DC Operating voltage supply; 24 V DC Supply to electronics and
6 0 V DC Operating voltage supply; 0 V DC

valves

7 I- Current output signal - Output actual value
8 I+ Current output signal +

4 ... 20 mA

9 – connected to the earth terminal at the plant –
10 ALARM Alarm digital output Alarm output
11 D-OUT1 Digital output Out 1 Status output
12 D-OUT2 Digital output Out 2
13 + 24 V DC Load voltage supply for outputs; 24 V DC Supply to digital outputs
14 0 V DC Load voltage supply for outputs; 0 V DC Supply to digital outputs
15 D-IN+ Digital input + Control input
16 D-IN- Digital input - Control input

3) Permits split circuits if separate power supply units are used

1)

1)

Tab. 3

Pin Designation Description

1 Vsp+ Voltage input signal + Input setpoint value
2 Vsp- Voltage input signal -

0...10 V
3 Isp+ Current input signal + Input setpoint value
4 Isp- Current input signal -

1) Permits split circuits if separate power supply units are used

0 ... 20 mA, 4 ... 20 mA

1

...

14

1

20 Festo – CMSX-...-C-U-F1-... – 1506a English

CMSX-...-C-U-F1-...

Pin DescriptionDesignation

5 +24 V DC Operating voltage supply; 24 V DC Supply to electronics and
6 0 V DC Operating voltage supply; 0 V DC

valves
7 I- Current output signal - Output actual value
8 I+ Current output signal +

4 ... 20 mA
9 – connected to the earth terminal at the plant –
10 ALARM Alarm digital output Alarm output
11 D-OUT1 Digital output Out 1 Status output
12 D-OUT2 Digital output Out 2
13 + 24 V DC Load voltage supply for outputs; 24 V DC Supply to digital outputs
14 0 V DC Load voltage supply for outputs; 0 V DC
15 D-IN+ Digital input + Control input

1)

16 D-IN- Digital input -

1) Permits split circuits if separate power supply units are used

Tab. 4 Pin allocation

Operating voltage supplyand earthing

Correct earthing is important for trouble-free operation of the device. The positioner CMSX has an earth
terminal on the left-hand side (è Fig. 16, 2 ).
For earthing, you must produce a low-impedance connection between the device’s earth terminal and
the earth potential. A low-impedance connection can be achieved by using a low-impedance cable that
is as short as possible and contacting over a large surface area.
 Connect, in a conforming manner, an appropriate earth connector to the earth terminal on the hous

ing side of the CMSX.

Fig. 17 Operating voltage supply and earthing – example

Festo – CMSX-...-C-U-F1-... – 1506a English 21

CMSX-...-C-U-F1-...

Note

If connected in accordance with Fig. 17, the disconnection of the circuits of the operat
ing voltage supply and of the load voltage for outputs is cancelled.

Setpoint value of inputs è Pin 1 ... 4 (setpoint value of the controlled variable)
The setpoint value can be specified as an external voltage of current signal. Both setpoint inputs can be
connected. But in all cases, only one of the two setpoint values is active – dependent on the paramet
erisation (factory setting è Tab. 16).
Output actual value è Pin 7, 8 (actual value of the controlled variable)
The position actual value (valve position VP) is made available for higher-order systems as a current
signal (it is influenced through the Open parameter è Tab. 16).
Digital outputs; ALARM, D-OUT1, D-OUT2 è Pin 10, 11, 12 and pin 14
The ALARM output delivers high level if the maximum positioning time is exceeded at initialization.
The outputs D-OUT1 and D-OUT2 can be wired as PNP or NPN outputs. Their behaviour can be con
figured (è Tab. 16). To operate the outputs as PNP outputs, the load must be connected between the
output and 0 V (pin 14). The following diagram shows as an example the connection of the digital out
puts when PNP outputs are used.

10

14

1

1 Pin numbering of the terminal strips

Fig. 18 Connection of digital outputs as PNP outputs – example

To operate the outputs D-OUT1 and D-Out2 as NPN outputs, the load must be connected between the
output and 24 V (pin 13).

22 Festo – CMSX-...-C-U-F1-... – 1506a English

CMSX-...-C-U-F1-...

10

14

1

1 Pin numbering of the terminal strips

Fig. 19 D-OUT1 and D-OUT2 as NPN outputs – example

Digital input è Pin 15, 16
The behaviour on a signal at the digital input can be configured (è Tab. 16). In the case of a control
signal, the PID controller is deactivated. Dependent on the configuration, working ports of the device
can be pressurized, exhausted or blocked (è Tab. 16).

16 15

1

1 Reference potential

Fig. 20 Connection of digital outputs – example

Festo – CMSX-...-C-U-F1-... – 1506a English 23

CMSX-...-C-U-F1-...

7 Commissioning

Note

Commissioning should only be conducted by qualified personnel.

7.1 Prerequisites

 The positioner is fully mounted and connected.

7.2 Checking operating conditions

 Check the operating conditions and limit values (è Technical data).
 Check the connection points for tightness.

Warning

Uncontrolled movements of the drive can cause damage. If the operating voltage supply
fails, the fast-switching valve return to the normal position.
 Observe the switch-on sequence.

7.3 Switch-on sequence

1. Switch on the operating voltage supply.

2. Switch on the setpoint specification.

3. Switch on the compressed air.

Note

During initialization, movement takes place to both end positions in succession, inde
pendently of the present setpoint value.

Caution

If there is a failure of the operating voltage supply during commissioning, data records
can be damaged in internal saving processes.
 Ensure there is a stable operating voltage supply, particularly during the commis

sioning phase.

Note

Parameter changes become effective immediately after the Set key is pressed.

24 Festo – CMSX-...-C-U-F1-... – 1506a English

CMSX-...-C-U-F1-...

7.4 Switch-on behaviour at initial start-up

After the initial application of supply voltage, the positioner is in the following status:
– Operating mode: Automatic (Auto)
– Operating status: PID controller stopped (Stopped)
The positioner behaves as follows:
– The PID controller is inactive and does not react to setpoint specifications.
– The positioner reacts to control signals at the digital input D-IN.
– The display shows the initial position.

The setpoint position (SP) in the first line and the current valve position (VP) in the second line are
displayed in percent. Example (operating status PID controller stopped; valve position 0 % –
closed):

−−− 0.0 %
VP: 0.0 %

All parameters and settings of the CMSX are factory preset as follows:

Level Menu Presettings in the

1)

anti-clk Valve opens anti-clockwise

Basic menu
level
Main menu
level

delivery status

- OPERAT Auto Automatic operation
ACTUAT Stopped PID controller stopped

CONFI G SIGNAL 4 ... 20 mA Current input activated; 4 ... 20 mA

2)

OPEN
DIRECT increase Open valve with rising setpoint value
CHARACTE linear Character of the characteristic curve setpoint

D-OUT1
D-OUT2

power-L
power-L

D-IN stop-H In case of High level, stop drive

PARA DEADBAND 1.0 % Dead space of the controller: 1.0 %

PID-P 1 Proportional share of the PID controller: 1
PID-D 4 Differential share of the PID controller: 4
MIN 0 % Lower limit of the valve operating area: 0 %
MAX 100 % Upper limit of the valve operating area: 100 %
SPMIN 0 % Minimum setpoint signal: 0 %
SPMAX 100 % Maximum setpoint signal: 100 %

CURVE 0 % 0 % Support point for setpoint value 0 %: 0 %

5 % 5 % Support point for setpoint value 5 %: 5 %

... ... ...

100 % 100 % Support point for setpoint value 100 %: 100 %

1) The command Fcty Rst (menu 6) resets all parameters to the delivery status (è 7.6.10).

2) Submenu only available for CMSX-S-... (rotary)

Tab. 5 Factory presettings (delivery status)

Brief description

value: Linear
Low level if load voltage supply is present for
outputs

Festo – CMSX-...-C-U-F1-... – 1506a English 25

CMSX-...-C-U-F1-...

The presettings can be sensibly used for a large number of applications. By changing the parameters
and the settings, you can adapt the behaviour of the device to the application case.

Note

Avoid accidental operational error.
 Familiarise yourself with the menu system, key functions and parameters of the

CMSX prior to commissioning. For further information è Section 7.5 and 7.6.

When you have familiarised yourself with the menu system. the key functions and parameters of the
CMSX:
 Perform commissioning as described in section 7.7.

7.5 Moving in the menu system

LCD display and keys of the CMSX permit you to perform commissioning directly at the CMSX. The
CMSX offers a simple menu structure. The menu structure is subdivided into a basic menu level and a
main level menu (è Fig. 21; 2 and 1 ). The two-line LCD display shows all texts in English as short
texts.

26 Festo – CMSX-...-C-U-F1-... – 1506a English

CMSX-...-C-U-F1-...

7.6 Menu structure

7.6.1 Menu structure for semi-rotary drives

3

1

2

3

SP:50.0 %
VP:50.1 %

1

MENU
1 SENSOR

MENU
2 CONFIG

MENU
3 PARA

MENU
4 CURVE

MENU
5 INFORM

MENU
6 INIT

2

3

ACTUAT

- Running

3
6

3

6

3

6

- Stopped

3
3

*CONFIG*

- signal

- open

- direct

- characte

- d-out1

- d-out2

- d-in

3

6

*CURDEF*
0 % 0.0
5 % 5.0

... ...

95 % 95.0
100 % 100

3

3

*INITIA*

- Autoinit

- Userinit

- Fcty Rst

- Sytm Rst

- SetAsDef

6

6

12

12

12

12

12

2

1

2

1

3

2

1

3

OPERAT

- Auto

- Manual

*SENSOR*

----+----

1, 2, 4, 5

SENSOR
Error

*PARA*

- deadband

- pid-p

- pid-d

- min

- max

- spmin

- spmax

*INFORM*

- L1 ..°

- L2 ..°

- V1 ...

- V2 ...

- Ver ...

2

1

2

1

2

1

Festo – CMSX-...-C-U-F1-... – 1506a English 27

CMSX-...-C-U-F1-...

7.6.2 Menu structure for linear drives

3

1

SP:50.0 %
VP:50.1 %

6

6

1

MENU
1 SENSOR

12

MENU
2 CONFIG

12

2

MENU
3 PARA

12

MENU
4 CURVE

3

12

MENU
5 INFORM

12

MENU
6 INIT

2

1 Basic menu level
2 Main menu level

Fig. 21 Menu structure – overview

3

3
6

3

6

3

6

ACTUAT

- Running

- Stopped

3
3

*CONFIG*

- signal

- direct

- characte

- d-out1

2

1

2

1

3

OPERAT

- Auto

- Manual

*SENSOR*

----+----

1, 2, 4, 5

SENSOR
Error

- d-out2

- d-in

*PARA*

3

6

*CURDEF*
0 % 0.0
5 % 5.0

... ...

95 % 95.0

3

- deadband

- pid-p

- pid-d

- min

- max

- spmin

- spmax

100 % 100

3

3

*INITIA*

- Autoinit

- Userinit

- Fcty Rst

- Sytm Rst

2

1

*INFORM*

- L1 IN

- L2 OUT

- V1 ...

- V2 ...

- Ver ...

- SetAsDef

3 1 = Press Add

2 = Press Sub
3 = Press Set
4 = Press and hold Add for 3 seconds
5 = Press and hold Sub for 3 seconds
6 = Press and hold Set for 3 seconds
7 = Press and hold Set and Add for 3 seconds

2

1

2

1

2

1

28 Festo – CMSX-...-C-U-F1-... – 1506a English

CMSX-...-C-U-F1-...

7.6.3 Basic menu level

After switching on the operating voltage supply the CMSX is automatically located in the initial position
of the basic menu level (è Fig. 21, 1 ). In the initial position, it displays the following:
– The current setpoint position in percentage (in line 1 – SP stands for setpoint position)
– The current valve position in percent (in line 2 – VP stands for valve position).
The display of the initial position depends on the operating mode and the operating status of the
device.

Initial position

1)

Display

SP:50.0%
VP:50.1%

-->50.0%
VP:50.1%

***50.0%
VP:50.1%

---50.0%
VP:50.1%

Meaning Brief description

Automatic
operation;
Controller is
in operation
Manual override;
controller is
in operation
Automatic or
manual override;
Control through
digital input
Automatic or
manual override;
controller is

The CMSX is in automatic operation in the operating status
controller in operation (Running) and shows the analogue
specified setpoint position (SP) and the current valve position
(VP) in percent.
The CMSX in manual override is in the operating status
controller in operation (Running) and shows the key-specified
setpoint position and the current valve position in percent.
The CMSX is in automatic operation or manual override. But the
controller is inactive, since a control signal is present at the D-IN
control port. Dependent on the configuration, working ports of
the device can be pressurized or exhausted (è Tab. 16).
The CMSX is in automatic operation or manual override in the
operating status controller stopped (Stopped) and shows the
setpoint position and the current valve position in percent.

stopped

1) SP = setpoint position; VP = valve position; *** = digital control signal is present; --- = controller stopped; values here as an

example

Tab. 6 Display in the initial position – example

If the manual override is active, you can set the setpoint value in the initial position with the Add and
Sub keys (è Tab. 7) .

Note

If the controller is in operation and no control signal is present at the control port, the
new setpoint value is effective immediately – even in manual override!
If the limit value (0 % or 100 %) is reached, the setpoint value jumps over to the minim
um or maximum setpoint value when the Add or Sub key is pressed again!

You can continue within the basic menu level by pressing the Set key (3) (è Fig. 22). After continuation
once, the current operating status (Running or Stopped) is displayed. There you can change the operat
ing status with immediate effect by pressing the Add or Sub key. After continuation again, the current
operating mode (Auto or Manual) is displayed. Here, too, you can change the current setting with the
Add or Sub key. The selected operating mode is taken over only after the Set key is pressed with con
tinuation into the initial position.

Festo – CMSX-...-C-U-F1-... – 1506a English 29

CMSX-...-C-U-F1-...

1

4

SP:50.0%
VP:50.1%

-->50.0%
VP:50.1%

---50.0%
VP:50.1%

***50.0%
VP:50.1%

1: +
2: ­4: ++

5: --

3

ACTUAT
Running

2

1

ACTUAT
Stopped

3

3

OPERAT
Auto

2

1

OPERAT
Manual

3

66

MENU
1 ...

...

1 Basic menu level – detail view
2 Operation (here briefly press Set key)

4 Initial positions – dependent on the operat

ing status and operating mode

2

3 Main menu level (è Fig. 21)

Fig. 22 Structure of the basic menu level – detail view

Operation Manual override Automatic operation

Briefly press Add 1 Increase setpoint value by 1 % – with over

2)

flow

Briefly press Sub 2 Reduce setpoint value by 1 % – with overflow

1)

–

2)

Briefly press Set 3 Continue within the basic menu level (è Fig. 22)
Hold down Add 4 Increase setpoint value continuously in 10 %

steps – with overflow

2)

1)

–

Hold down Sub 5 Reduce setpoint value continuously in 10 %

2)

Press Set for approx.

steps – with overflow

6 Open main menu level (è Fig. 22)

3 seconds

1) Keys without function; setpoint specification is made through setpoint value input

2) If the limit value is reached, the setpoint value immediately jumps over to the minimum or maximum setpoint value!

Tab. 7 Operation in the initial position

30 Festo – CMSX-...-C-U-F1-... – 1506a English

CMSX-...-C-U-F1-...

Starting from the initial position, pressing the Set key causes continuation within the basic menu level
(è Fig. 21). After continuation occurs once, the current operating status is displayed. The following
operating statuses are possible:

Operating statuses
Display Meaning Brief description

ACTUAT
Running

Controller is
in operation

If no control signal is present at the digital control port D-IN, the
analogue setpoint position specified in automatic operation and,
in manual override, the manually set setpoint position, is
effective. Otherwise, the command configured for the control
port D-IN is executed (è Tab. 16).

ACTUAT
Stopped

Controller is
Stopped

The CMSX does not react to setpoint inputs but only to control
signals at the D-IN control port.

(Presetting)

Tab. 8 Operating statuses (Running, Stopped)

Operation Controller is in operation Controller is stopped

Briefly press Add 1 Stop controller immediately Start controller immediately
Briefly press Sub 2
Briefly press Set 3 Continue within the basic menu level (è Fig. 21)

Tab. 9 Operation with display of the operating status

After the Add or Sub button is pressed (è Fig. 21), the controller is immediately started or stopped.
After the Set button is pressed, the active operating mode is displayed.

Operating mode
Display Meaning Brief description

OPERAT
Auto
OPERAT
Manual

Automatic op
eration
Manual over
ride

CMSX is in the automatic mode (presetting). The CMSX is normally
operated in this operating mode.
CMSX is in manual override.

Tab. 10 Operating modes

Operation Automatic operation Manual override

Briefly press Add 1 Select manual override Select automatic operation
Briefly press Sub 2
Briefly press Set 3 Confirm selection and continue within the basic menu level

Tab. 11 Operation with display of the operating mode

From the initial position, you change into the menu level through long pressing of the Set key
(approx. 3 s) (è Fig. 21).

Festo – CMSX-...-C-U-F1-... – 1506a English 31

CMSX-...-C-U-F1-...

7.6.4 Menu level

A change into the menu level first leads into the main menu. The main menu includes the following 6
menus.

Display

MENU
1 SENSOR
MENU
2 CONFIG

Meaning Brief description

Menu
1 sensor
Menu
2 Configura
tion

For testing the sensor sensing range by controlling the
fast-switching valves with the Add and Sub keys
For configuration of the positioner (type of signal setpoint value,
direction of movement, character of the setpoint value
characteristic curve, behaviour of the status outputs, behaviour
upon control signal at the digital input)

MENU
3 PARA

MENU
4 CURVE

Menu
3 Paramet
erisation
Menu
4 Characterist

For parameterisation of the controller (dead zone, P- and D-part,
limits of the valve operating area and the setpoint value signal
area)
For definition of a user-defined characteristic curve over 21
support points

ic curve

MENU
5 INFORM

Menu
5 Information

Shows the smallest and largest sensor position after the last
initialization process, the number of switching cycles of the valves
and the firmware design of the positioner

MENU
6 INIT

Menu
6 Initialization

Makes available functions for initialization and reset of the
positioner

Tab. 12 Main menu

By pressing the Add or Sub key, you can switch forward or backward in the main menu (è Fig. 21).
Pressing the Set button opens the menu. Then the first menu command or parameter is displayed.

Operation Main menu (menu 1 ... 6)

Briefly press Add 1 Continue to the next menu (è Fig. 21)
Briefly press Sub 2 Back to the previous menu (è Fig. 21)
Briefly press Set 3 Open menu (è Fig. 21)
Press and hold Set 6 Back to the basic menu level (è Fig. 21)

Tab. 13 Operating in the main menu (menu 1 ... 6)

32 Festo – CMSX-...-C-U-F1-... – 1506a English

CMSX-...-C-U-F1-...

7.6.5 Menu SENSOR (1)

With the function in the menu SENSOR (1), an initial function test can be performed with a switched-off
controller, and a check can be made whether the motion range of the drive shaft is within the sensing
range of the internal sensor. In addition, with this function and with a switched-off compressed air sup
ply, the working ports of the device must be exhausted with the Add and Sub keys before tubing lines
may be removed on the device (è Tab. 15).

Note

The drive is moved by pressurizing the one and exhausting the other working port! Since
the controller must be switched off with this function, parameterised limit values are
ineffective. As a rule, this function may only be performed during the commissioning
phase – dependent on the system.

If the Sensor Error message appears on the display, the sensing range of the integrated sensor has
been exceeded. The CMSX then has not been correctly aligned on the movement range of the drive. In
this case, the mechanical structure must be corrected (è Section 6.1).

Display Description

MENU 1 SENSOR

----+---- The display shows the sensor signal through a small plus sign (+). With the Sub and

Add keys, the working ports 2 and 4 of the CMSX can be pressurized and exhausted
(è Tab. 15). As a result, the drive is moved. Dependent on the sensor signal, the
plus sign wanders hereby from left to right or from right to left.

Tab. 14 Menu SENSOR (1) — Sensor

MENU
1 Sensor

3

6 or 3

*SENSOR*

----+----

SENSOR
Error

2

1

1 Caution! Only for commissioning!

Drive is moved!

1, 2, 4, 5

2 Error message; sensing range of the sensor

has been exceeded

Fig. 23 Sensor test

Operation Sensor command

Briefly press Add 1 Briefly pressurize working port 2, briefly exhaust 4
Briefly press Sub 2 Briefly pressurize working port 4, briefly exhaust 2
Briefly press Set 3 Back to the main menu
Hold down Add 4 Pressurize working port 2 and exhaust 4 as long as the key remains

pressed

Hold down Sub 5 Pressurize working port 4 and exhaust 2 as long as the key remains

pressed

Press Set long 6 Back to the main menu

Tab. 15 Operation in the sensor test

Festo – CMSX-...-C-U-F1-... – 1506a English 33

CMSX-...-C-U-F1-...

7.6.6 Menu configuration (2)

Display

Description

MENU 2 CONFIG
SIGNAL Establishes the active setpoint value input and the type of setpoint value signal

0-10 V Voltage input (pin 1, 2); 0 ... 10 V
4-20 mA Current input (pin 3, 4); 4 ... 20 mA (presetting)
0-20 mA Current input (pin 3, 4); 0 ... 20 mA

1)

Open

Specifies in which direction the process valve opens (semi-rotary drives only).

clockwis Clockwise
anti-clk Anti-clockwise (presetting)

DIRECT Establishes the signal direction for increasing the setpoint position (SP) (è Fig. 25).

increase Increasing setpoint value signal (presetting)
decrease Decreasing setpoint signal

CHARACTE Character of the setpoint value characteristics curve

linear Linear characteristic curve (presetting); linear ratio between ana

logue setpoint value and setpoint position (è Fig. 26)

1 : 25 Equal-percentage characteristic curve (è Fig. 26)
1 : 33
1 : 50
user-def User-defined setpoint value characteristic curve (è Section 7.6.8)

D-OUT-1
D-OUT-2

Establishes the behaviour of the two status outputs (D-OUT-1, D-OUT-2).

power-H High level if load voltage supply is present for outputs
power-L Low level if load voltage supply is present for outputs (presetting)
limit1-H High level, if end position 1 is reached
limit1-L Low level, if end position is 1 reached
limit2-H High level, if end position 2 is reached
limit2-L Low level, if end position 2 is reached
limits-H High level, if end position 1 or end position 2 is reached
limits-L Low level, if end position 1 or end position 2 is reached
stop-H High level, if CMSX is in the operating status “Actuat stopped”
stop-L Low level, if CMSX is in the operating status “Actuat stopped”

D-IN Establishes the reaction to a signal at the digital input D-IN. The controller is then

inactive. Either both of the working ports of the device are pressurized in order to
stop or one working port is pressurized and one is exhausted.

stop-H In the case of High level, stop drive (presetting)
stop-L In the case of Low level, stop drive
lmt1-H In the case of High level, travel to stop 1
lmt1-L In the case of Low level, travel to stop 1
lmt2-H In the case of High level, travel to stop 2
lmt1-L In the case of Low level, travel to stop 2

1) Submenu only available for CMSX-S-... (rotary)

Tab. 16 Menu configuration (2)

34 Festo – CMSX-...-C-U-F1-... – 1506a English

CMSX-...-C-U-F1-...

Pressing the Add or Sub key selects a function in the menu (è Fig. 24, 1 ). Pressing the Set button
confirms the selection. The current setting is then displayed. A setting can be selected with Add and
Sub (è Fig. 24, 2 ). Pressing the Set key confirms the current selection and returns to the menu.

Note

Parameter changes become effective immediately after the Set key is pressed. For ex
ample, digital outputs can change their signal status by changing settings even in the
controller stopped operating status.

MENU
2 CONFIG

3

6

*CONFIG*
signal
open
direct
...

SIGNAL

3

2

1

0-10V
4-20mA
0-20mA

2

1

12

1 Select function with Add (1) and Sub (2) 2 Select setting with Add (1) and Sub (2)

Fig. 24 Movement in the menu configuration (2) – example SIGNAL

Operation Selection in the CONFIG menu Setting (e.g. SIGNAL)

Briefly press Add 1 Continue to the next selection
Briefly press Sub 2 Back to the previous selection
Briefly press Set 3 Confirm selection Confirm selection and back to

the menu (2)

Press and hold Set 6 Back to the main menu Confirm selection and back to

the main menu

Tab. 17 Operation in the Configuration menu (2)

6

Festo – CMSX-...-C-U-F1-... – 1506a English 35

CMSX-...-C-U-F1-...

Opening direction (OPEN) - only CMSX-S-...- (rotary)

With the OPEN parameter, you specify in which direction the process valve opens. If the setting is cor
rect, the display shows the following as valve position (VP):
– With completely closed process valve: VP 0 %
– With completely opened process valve: VP 100 %.
The parameter OPEN influences the direction of rotation of the semi-rotary drive as well as the dis
played valve position (VP) and thus also the analogue signal at the actual value output. In addition, it
influences the position of the entries limit1, limit2, lmt1 and lmt2. Whether the process valve opens
with increasing or falling setpoint signal is determined by the parameter DIRECT.

Signal direction (DIRECT)

The parameter DIRECT establishes the signal direction for increasing the setpoint position (SP). The
setpoint position (SP) is raised either with increasing setpoint signal or with falling setpoint signal. The
parameter is effective independently of the character of the setpoint characteristic curve. For example,
the parameter is effective with a linear setpoint characteristic curve as follows:

1

0 V

0/4 mA

10 V

20 mA

2

Increasing setpoint signal (increase)
Decreasing setpoint signal (decrease)

1 Setpoint position SP in [%] (setpoint

position)

2 Setpoint value signal range – example

(SPMIN = 0 %; SPMAX = 100 %)

Fig. 25 Active direction of the setpoint signal on the setpoint position – example (here linear charac

teristic curve)

With the parameters SPMIN and SPMAX, the setpoint signal range can be restricted as needed
(è Tab. 18). Whether the process valve opens or closes is influenced through the OPEN parameter.

36 Festo – CMSX-...-C-U-F1-... – 1506a English

CMSX-...-C-U-F1-...

Character of the setpoint characteristic curve (CHARACTE)

This parameter establishes the character of the setpoint characteristic curve. With the setting “linear”,
the ratio between the analogue setpoint change and setpoint position change (SP) is constant.
Equal percentage characteristic curves progress exponentially with preset signal direction (DIRECT =
increase). In the case of equal percentage characteristic curves, a constant percentage change of the
setpoint position takes place with constant analogue setpoint change.

12

Linear
1 : 25
1 : 33
1 : 50

3

SPMAXSPMIN

4

1 Setpoint position SP in [%] (setpoint posi

tion)

4 Setpoint signal - scaling is dependent on the

parameters SPMIN and SPMAX

2 Linear characteristic curve (è also Fig. 25)
3 Equal-percentage characteristic curve (here

1 : 50)

Fig. 26 Character of the setpoint characteristic curve – example (DIRECT = increase)

With User-Def. a user-defined setpoint value characteristic curve can be established over 21 support
points (è Section 7.6.8).

D-Out-1, D-Out-2, D-IN

These parameters make possible the functions named in Tab. 16. Parameter changes become effective
immediately after confirmation with the Set key - even in the operating status controller stopped.
If the parameter OPEN is changed, the end positions (limit1, limit2) and stops (lmt1, lmt2) are mixed
up.

Festo – CMSX-...-C-U-F1-... – 1506a English 37

CMSX-...-C-U-F1-...

7.6.7 Menu parameter (3)

The commands in the parameters menu offer access to controller parameters as well as parameters for
scaling the analogue setpoint value specification and the valve operating area.

Display

Description

MENU 3 PARA
DEADBAND Establishes the dead zone of the positioner (è Fig. 28).

0.5 ... 10% Dead zone in % of the scaled work range

(Presetting: 3 %)

PID--P Establishes the P-part (proportional part) of the PID controller

1 ... 20 P-part (presetting = 1)

PID--D Establishes the D-part (differential part) of the PID controller

1 ... 20 D-part (presetting = 4)

MIN Establishes the lower limit of the valve operating area (è Fig. 29)

0 ... MAX -1% Valve position in % of the actual work space

(presetting = 0 %)

MAX Establishes the upper limit of the valve operating area (è Fig. 29)

MIN+1% ... 100% Valve position in % of the actual work space

(presetting = 100 %)

SPMIN Establishes the minimum setpoint signal (presetting = 0 %).

1)

0 ... SPMAX-20% Smallest setpoint value in % of the complete work

range

SPMAX Establishes the maximum setpoint signal (presetting = 100 %).

1)

SPMIN+20% ... 100% Largest setpoint value in % of the complete work range

1) This limits the work range of the setpoint signal (è Fig. 30)

Tab. 18 Menu parameter (3)

The parameters can also be selected and set with the Add and Sub key (è Fig. 24, 2 ). Pressing the
Set key confirms the current selection or setting and returns to the menu.

Note

If the controller is in operation (operating status Running), the new setting becomes
effective immediately after the Set key is pressed.

6

MENU
3 PARA

3

6

*PARA*
deadband
pid--p
pid--d
...

3

2

1

DEADBAND
...

3.0 %

3.1 %
...

2

1

Fig. 27 Movement in the Parameter menu configuration (3) - example DEADBAND – dead zone

38 Festo – CMSX-...-C-U-F1-... – 1506a English

CMSX-...-C-U-F1-...

Operation Selection in the PARA menu Parameter value

Briefly press Add 1 Continue to the next selection Increase value
Briefly press Sub 2 Back to the previous selection Reduce value
Briefly press Set 3 Confirm selection Back to the selection
Press and hold Set 6 Confirm selection and back to the main menu

Tab. 19 Operation in the Parameter menu (3)

Dead zone (DEADBAND)

The parameter DEADBAND (dead zone) establishes the lower and upper limit of the zone within which a
change in the controlled variable has no influence on the setpoint specification. A change in the set
point specification takes place only if the dead zone is exceeded. The setpoint specification is only
constant if the deviation lies within half the dead zone (b > deviation > b).

4

1

2

a = DEADBAND
b = ½ DEADBAND

3

1 Setpoint specification (controller output signal)
2 Deviation (controller input signal)

3 Upper limit (DEADBAND (+))
4 Lower limit (DEADBAND (-))

Fig. 28 Dead zone

The size of the dead zone influences the positioning accuracy and sensitivity with which the positioner
reacts to a deviation.
A dead zone that is too small results in vibration tendencies around the setpoint position up to perman
ent oscillations (instability). Through this, the fast-switching valves in the positioner and the drive are
subject to unnecessary loads. A dead zone that is too large results in low positioning accuracy.

Festo – CMSX-...-C-U-F1-... – 1506a English 39

CMSX-...-C-U-F1-...

Control parameters (PID--P, PID--D)

These parameters influence the control behaviour of the device. This permits adapting the positioning
speed and the control behaviour to the respective requirements.
The I-part of the PID controller cannot be changed by the user. It is preset at the factory to a value ap
propriate for the function.
But incorrectly set parameters can result in overswings or permanent oscillations around the setpoint
position. Small drives react to this more sensitively than large drives.

PID--P

The parameter PID--P influences the P-part of the PID-controller.
– Increasing the value increases the setpoint specification change in the case of a deviation. A

P-share that is too high results in overswings.

– Reduction in the value causes a reduction in the setpoint specification change in the case of a devi

ation. A P-share that is too small results in slower regulation.

PID--D

The parameter PID--D influences the D-part of the PID-controller.
– Increasing the value changes the setpoint specification change less strongly with the same change

in speed of the deviation. Regulation becomes more sluggish.

– Reducing the value changes the setpoint specification change more strongly with the same change

in speed of the deviation. Regulation becomes more dynamic.

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CMSX-...-C-U-F1-...

Lower and upper limit of the valve operating area (MIN, MAX)

With the parameters MIN and MAX, the lower and upper valve position (physical stroke) of the valve
operating area can be established – independent of the character of the setpoint characteristic curve.
The characteristic curve is completely adjusted corresponding to the established lower and upper valve
position. The following figure shows as an example the influence of the parameters on the linear set
point value characteristic curve with the setting MIN 20 % and MAX 80 %.

1

Presetting

MAX 80

User-defined

MIN 20

2

1 Physical stroke [%]
2 Setpoint position SP in [%] (setpoint posi

tion)

Fig. 29 Influence of the parameters MIN and MAX on the setpoint characteristics curve – example

Typically, the smallest physical stroke is assigned to the smallest setpoint value and the largest
physical stroke to the largest setpoint value – dependent on the configuration and parameterisation
(è Parameter OPEN in Tab. 16).

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CMSX-...-C-U-F1-...

Lower and upper limit of the setpoint value signal range (SPMIN, SPMAX)

The parameters SPMIN and SPMAX establish the lower and upper limit of the signal range for the ana
logue setpoint value specification – independent of the character of the setpoint characteristic curve.
Exceeding these limits has no influence on the setpoint value specification. The following figure shows
as an example the influence of the parameters on the linear setpoint value characteristic curve with the
setting SPMIN 20 % and SPMAX 80 % (DIRECT = increase).

1

Presetting
User-defined

0/4 mA

SPMAXSPMIN

10 V0 V

20 mA= 20 % = 80 %

2

1 Setpoint position SP in [%] 2 Signal range

Fig. 30 Influence of the parameters SPMIN, SPMAX on the signal range of the setpoint value

specification – example

With a preset signal direction (DIRECT = increase), the lower limit value of the signal range is assigned
to the lowest setpoint position and the upper limit value to the highest setpoint position.

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CMSX-...-C-U-F1-...

7.6.8 Characteristic curve menu (4)

In this menu, a user-defined process valve characteristic curve can be established through 21 setpoint
value support points. The respective characteristic flow values of the process valve used are assigned
to these support points.

Note

Observe that changing support points in the Running operating status is effective imme
diately – without pressing the Set key.

Display Description

MENU 4 CURVE
0 % Support point for setpoint signal 0 % (presetting 0 %)

0.0 ... Setpoint position SP in % related to the defined work range

5 % Support point for setpoint signal 5 % (presetting 5 %)

... ...

100 % Support point for setpoint signal 100 % (presetting 100 %)

Tab. 20 Characteristic curve menu (4)

12

1: +
2: ­4: ++

3

6

*CURDEF*
0 % 0.0

5: --

MENU
4 CURVE

5 % 5.0

... ...

3

95 % 95.0
100 % 100

1 Support points for setpoint signal

3 Edit value (è Tab. 21)

2 Setpoint position SP [%] (value of the

support points)

Fig. 31 Move in the characteristic curve menu (4) - example support point 0 %

Operation Selection in the CURDEF menu

Briefly press Add 1 Increase support point by 0.1 % – with overflow
Briefly press Sub 2 Decrease support point by 0.1 % – with overflow

1)

1)

Briefly press Set 3 Confirm current value and continue to the next support point
Press Add long 4 Increase support point continuously by 1 – with overflow
Press Sub long 5 Reduce support point continuously by 1 – with overflow

1)

Press and hold Set 6 Back to the main menu

1) If the limit value is reached, the setpoint value immediately jumps over to the minimum or maximum setpoint value!

Tab. 21 Operation in the characteristic curve menu (4)

3

1)

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CMSX-...-C-U-F1-...

The setpoint value support points have a distance between each other of 5 % of the established set
point value signal range. From the support points, the user-defined process valve characteristic curve is
generated by connecting 20 line segments (è Fig. 32). The user-defined process valve characteristics
curve is activated with the parameter CHARACTE in the menu CONFIG.(è Section 7.6.6).

1

2

SPMAXSPMIN

4

1 Setpoint position SP [%]
2 Support point (here for analogue setpoint

value 75 %)

75
%

3 Scaling is dependent on the parameters

SPMIN and SPMAX

4 Analogue setpoint value signal range

Fig. 32 User-defined process valve characteristic curve with 21 support points – example

For the support points, any values can be assigned in rising and falling sequence. Typically, ascending
values are assigned.

3

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CMSX-...-C-U-F1-...

7.6.9 Information menu (5)

The following information can be called up in the Information menu (5):

Display

Description

MENU 5 INFORM
L1 ...° Lower limit of the initialized opening angle (semi-rotary drives)

... Numerical value [°]

L1 IN Bottom dead center (linear drives)

...

L2 ...° Upper limit of the initialized opening angle (semi-rotary drives)

... Numerical value [°]

L2 OUT Top dead center (linear drives)

...

V1 ...k Number of switching cycles of the fast-switching valve V1 since the last initialization

process

...k Numerical value1) [1000]

V2 ...k Number of switching cycles of the fast-switching valve V2 since the last initialization

...k Numerical value1) [1000]

Ver A3.3 Firmware design of the device

3.x Version number

1) k for kilo (thousands)

Tab. 22 Information menu (5)

3

MENU
5 INFORM

6

*INFORM*
L1 ...°
L2 ...°
V1 ...k

2

1

...

Fig. 33 Movement in the Information menu (5)

Operation Selection in the INFORM menu

Briefly press Add 1 Continue to the next selection
Briefly press Sub 2 Back to the previous selection
Briefly press Set 3 Back to the main menu
Press and hold Set 4

Tab. 23 Operation in the Information menu (5)

7.6.10 Initialization menu (6)

Initialization can be started or a reset executed in the Initialization menu (6). Further, current settings
can be saved as individual presettings.

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CMSX-...-C-U-F1-...

Note

During initialization the process valve is moved to the end positions. As a rule, there
fore, initialization may only be performed during the commissioning phase – dependent
on the system.

Display

Description

MENU 6 INIT
Autoinit Starts automatic initialization1) (è Section 7.7.3)

Here, the drive is moved into the end positions. Automatic initialization takes a
certain amount of time.

Userinit Starts user-guided initialization1). Here, the drive is moved into the end positions.

With user-guided initialization, each individual step of initialization is started by
pressing the Add button by hand.

Fcty Rst Resets all current settings to the presettings valid from the plant (delivery

status è Tab. 5) .

Sytm Rst Resets all current settings to the individual presettings previously saved with

SET AS DEF.

SET AS DEF Saves all current settings as individual presettings.

1) In initialization, the positioner determines the swivel angle and a maximum positioning time. In doing so, it coordinates control of

the fast-switching valves with the direction of rotation of the potentiometer. VP and SP then behave synchronously.

Tab. 24 Initialization menu (6)

3

MENU
6 INIT

6

*INITIA*
Autoinit
Userinit
Fcty Rst
...

7

2

AutoInit
24-- 1

1

AutoInit
24-- ...

1

2

AutoInit
OK

1 Caution: Function is activated. The drive is

2 Automatic sequence of initialization

moved in initialization!

Fig. 34 Movement in the Initialization menu (6) – example AutoInit

Operation Selection in the menu

Briefly press Add 1 Continue to the next selection
Briefly press Sub 2 Back to the previous selection

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CMSX-...-C-U-F1-...

Operation Selection in the menu

Briefly press Set 3 Confirm current selection
Press and hold Set 6 Back to the main menu
Press and hold Set and Add 7 Enable function

Tab. 25 Operation in the Initialization menu (6)

7.7 Commissioning steps

After mounting of the semi-rotary drive, process valve and positioner, it must be checked whether the
semi-rotary drive lies correctly in the sensing range of the sensor. If configuration is faulty, the swivel
angle may exceed the physical sensing range. This results in an error message during commissioning.
The configuration must then be corrected. Besides visual control of the sensing range (è Fig. 11),
check this situation with the command in the menu 1 SENSOR (è Also section 7.6.5). If the swivel
angle lies correctly within the sensing range of the sensor, initialization of the CMSX can be performed.
Then the behaviour of the CMSX can be established through configuration and parameterisation.

The following steps must be executed during commissioning:

1. Performance test and check of the sensing range of the sensor (è Section 7.7.1)

2. For type CMSX...-A: Check safety function. The tubing connection of the CMSX must be adapted to
the desired behaviour (è Section 3.2).

3. If flow control valves are used in the working lines of the CMSX:
 Adjust the flow control valves so that the max. permissible speed cannot be exceeded.

4. The following commissioning steps can be carried out in any order:
 Initialization
 Configuration of the setpoint signal and the digital inputs and outputs (optional)
 Parameterisation of the control behaviour (optional)

5. To conclude commissioning:
Mount the housing cover with an Allen key – width across flats (SW) 3 mm, tightening torque 1.5 Nm
± 10 %. When mounting the housing cover, make sure the seal is not twisted in the slot of the cover.
The seal must be undamaged and free of contamination.

7.7.1 Performance test and check of the sensing range

With the keys, you can pressurize one working port and exhaust the other working port in order to per
form an initial performance test. In this way, you can check whether the operating area of the semi­rotary drive lies within the physical sensing range of the sensor.

After the initial application of supply voltage, the CMSX is typically in the following status
(è Section 7.4):
– Operating mode: Automatic (OPERAT Auto)
– Operating status controller stopped (ACTUAT Stopped).

Perform an initial performance test in this way:

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CMSX-...-C-U-F1-...

1. Activate the compressed air supply.

2. Switch on the operating voltage. Prior to commissioning, the CMSX is typically stopped in the auto
matic operating mode and the controller operating status. The controller is then inactive and the
display shows the initial position, e.g.:

−−− 0.0 %
VP: 0.0 %

3. Press the Set key for approx. 3 seconds. The CMSX then displays the first menu.

MENU
1 Sensor

4. To open the menu, briefly press the Set key.
If the current position lies within the measuring range, the CMSX displays the size of the current
sensor signal in the display as a plus sign (example).

*Sensor*

----+----

If the position lies outside the measuring range, the display shows the text Sensor Error.

Sensor
ERROR

In this case, there is an error in the system structure. Always mount the CMSX so that the physical
sensing range of the internal potentiometer completely covers the swivel angle of the drive (see
section 6.1).
If the current position lies within the measuring range, you can now pressurize one working port and
exhaust the other working port with the Add and Sub keys. The working ports are pressurized and
exhausted as long as the respective key is held down (è Tab. 15).

5. For example, hold down the Add key until the semi-rotary drive reaches the end position. On reach
ing the end position, the display shows, for example:

1 Sensor

−+−−−−−−−

6. Now hold down the Sub key until the semi-rotary drive reaches the other end position. On reaching
the end positions, the display shows, for example:

1 Sensor

−−−−−−−+−

If the entire swivel angle could be run through without an error message, the physical sensing range
of the internal sensor covers the entire swivel angle of the drive. With this, the test is successfully
completed. Now commissioning can be continued with initialization (è Section 7.7.2).

48 Festo – CMSX-...-C-U-F1-... – 1506a English

CMSX-...-C-U-F1-...

7. To switch back to the main menu, briefly press the Set key. The CMSX then displays the first menu
again

MENU
1 Sensor

8. If the initial position should be displayed again, press the Set key for approx. 3 s. Then the CMSX
displays the initial position again.

−−− 0.0%
VP: 0.0%

7.7.2 Initialisation

In initialization, the CMSX adjusts control of the fast-switching valves to the direction of rotation of the
potentiometer and creates the relationship between the measured variable and position. In addition,
the CMSX determines a maximum positioning time. For this purpose, both end positions of the drive are
travelled to and saved as limits. Always perform an initialization in the following cases:
– After installation at the initial start-up
– After re-adjustment of the flow control valves
– After changes in the system structure, e.g. changes in the tubing connections.
Initialization can be carried out manually or automatically. We recommend performance of automatic
initialization (è Section 7.7.3).

Festo – CMSX-...-C-U-F1-... – 1506a English 49

CMSX-...-C-U-F1-...

7.7.3 Performance of automatic initialization (Autoinit)

In automatic initialization, the CMSX automatically carries out an initialization run. The drive is moved
thereby!

Note

During initialization, the process valve is moved to the physical end positions.
 Execute initialization only during the commissioning phase.

This is how you start automatic initialization:

1. Activate the compressed air supply.

2. Switch on the operating voltage. The CMSX then displays the initial position, e.g.:

−−− 0.0%
VP: 0.0%

3. Press the Set key for approx. 3 s. The CMSX then displays the first menu.

MENU
1 Sensor

4. Briefly press the Sub key. Then the CMSX shows the menu 6.
Alternatively, you can also press the Add key 5 times to switch from menu 1 to menu 6.

MENU
6 INIT

5. To open the menu, briefly press the Set key. The first command in the menu is then displayed.

*INITIA*
Autoinit

6. To start automatic initialization, hold down the Set and Add keys simultaneously for approx.
3 seconds. Initialization will then be started. The drive is moved.
Initialization takes a certain amount of time. The individual steps of initialization are shown on the
display (è Fig. 34).

AutoInit

24-- 1

...

AutoInit

24-- ...

...

AutoInit

24--22

50 Festo – CMSX-...-C-U-F1-... – 1506a English

CMSX-...-C-U-F1-...

After successful initialization has been completed, the display shows the following message:

AutoInit

OK

With this, initialization is completed.
If an error is displayed, automatic initialization must be started again or manual initialization carried
out again. Then briefly press the Set button as often as necessary until the menu is displayed again.
Then repeat automatic initialization or carry out manual initialization (è Section 7.7.4).

7. Briefly press the Set key. Then the first command in the menu is displayed again.

*INITIA*
Autoinit

8. To switch back to the main menu, briefly press the Set key. The CMSX then displays menu 6 again.

MENU
6 INIT

9. If the initial position should be displayed again, press the Set key for approx. 3 s. Then the CMSX
displays the initial position again, e.g.:

−−− 0.0%
VP: 0.0%

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CMSX-...-C-U-F1-...

7.7.4 Executing the user-guided initialization (Userinit)

With user-guided initialization, each individual step of initialization is started by pressing the Add but
ton by hand. The drive is moved thereby!

Note

During initialization, the process valve is moved to the physical end positions.
 Execute initialization only during the commissioning phase.

Execute user-guided initialization as follows:

1. Activate the compressed air supply.

2. Switch on the operating voltage. The CMSX then displays the initial position, e.g.:

−−− 0.0%
VP: 0.0%

3. Press the Set key for approx. 3 s. The CMSX then displays the first menu.

MENU
1 Sensor

4. Briefly press the Sub key. Then the CMSX shows the menu 6. Alternatively, you can also press the
Add key 5 times to switch from menu 1 to menu 6.

MENU
6 INIT

5. To open the menu, briefly press the Set key. The first command in the menu is then displayed.

*INITIA*
Autoinit

6. To switch further to the next command, briefly press the Add key.

*INITIA*
Userinit

7. To start user-guided automatic initialization, hold down the Set and Add keys simultaneously for
approx. 3 seconds. The first steps of initialization are shown on the display.

UserInit

11-- 1

To start the displayed initialization step, briefly press the Add key. The step will then be executed.
The drive is moved. After the step is completed, the next initialization step is displayed.

UserInit

11-- 2

8. Press the Add key briefly each time until all steps have been executed.

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CMSX-...-C-U-F1-...

After successful initialization has been completed, the display shows the following message:

UserInit

OK

With this, initialization is completed.

9. Briefly press the Set key. Then the command is displayed again in the menu.

*INITIA*
Userinit

10.To switch back to the main menu, briefly press the Set key. The CMSX then displays menu 6 again

MENU
6 INIT

11.If the initial position should be displayed again, press the Set key for approx. 3 s. Then the CMSX
displays the initial position again, e.g.:

−−− 0.0%
VP: 0.0%

7.7.5 Set parameters

Note

Incorrectly set parameters can lead in operation to unexpected behaviour of the con
nected semi-rotary drive.
 Bring the CMSX into the controller stopped operating status if you wish to avoid

activation of the semi-rotary drive during parameterisation.

 But note that the CMSX can always react to control signals at the control port D-IN

or to changes in the parameter D-IN (è Tab. 16).

After installation and initialization, configuration and parameterisation of the positioner must be ex
ecuted. Settings and parameters are preset at the plant (delivery status) (è Tab. 5) .

Note

If the controller is in operation (operating status Running), the new setting becomes
effective immediately after the Set key is pressed.
Parameter changes become effective immediately after the Set key is pressed. For ex
ample, digital outputs can change their signal status by changing settings even in the
controller stopped operating status.

 Adjust the parameter values and settings of the device to your application.
 Make the desired settings. Details on the procedure è Section 7.5.
 Test the settings made.

Festo – CMSX-...-C-U-F1-... – 1506a English 53

CMSX-...-C-U-F1-...

7.7.6 Conclusion of commissioning

To complete commissioning, proceed as follows:

1. Recommendation: Save your settings with the command Set as def (è Menu 6) as individual pre
settings.

2. Mount the housing cover with an Allen key – width across flats (SW) 3 mm, tightening torque 1.5 Nm
± 10 %. When mounting the housing cover, make sure the seal is not twisted in the slot of the cover.
The seal must be undamaged and free of contamination.

8 Operation

Warning

Accidental movements of the drive can cause damage.
 Observe that the fast-switching valves of the CMSX take the neutral position if there

is a failure of the operating voltage supply (è Section 3.2).

 If you would like to prevent the neutral position of the fast-switching valves from

being effective when the power supplies are switched on (è Section 3.2), first
switch on the operating voltage supply and the setpoint input, and only then the
compressed air supply.

 Observe the operating conditions.
 Observe permitted limit values.
After the supply voltage is switched on, the CMSX is in the same operating status and the same operat
ing mode that was valid before the supply voltage was switched off.
After commissioning has taken place, this is typically:
– Operating mode automatic (Auto)
– Operating status controller in operation (Running)
The CMSX shows the analogue specified setpoint position and the current valve position in percent and
adjusts the valve position correspondingly.

SP: 12.0%
VP: 12.1%

The CMSX behaves as follows:
– The controller is active and controls the semi-rotary drive to the analogue specified setpoint posi

tion.

– If the operating voltage supply is switched off, the fast-switching valves of the CMSX take on the

neutral position (è Section 3.2).

9 Maintenance and care

The device is maintenance-free if used as intended in the operating instructions .
 Clean the outside of the product with a soft cloth. The permissible cleaning agent is soap suds.

54 Festo – CMSX-...-C-U-F1-... – 1506a English

CMSX-...-C-U-F1-...

10 Disassembly

Note

Disassembly only by qualified specialized personnel.

Caution

Accidental movements of the drive can cause damage when dismounting. Before disas
sembly of the positioner:
 Switch off the compressed air and power supplies.
 Exhaust the semi-rotary drive.
 Secure the system against being switched back on.

Caution

Despite switched-off compressed air supply – dependent on the product variant – one
or both working ports of the positioner can remain under pressure.
 Vent the working ports with the help of the Sensor function before you remove the

tubing lines (è Section 7.6.5).

Note

The CMSX contains electrostatically sensitive devices. Electrostatic discharges caused
by improper handling or incorrect earthing can damage the internal electronics.
 Observe the handling specifications for electrostatically sensitive devices.
 Discharge yourself from static discharges before assembling or disassembling mod

ules to protect the modules.

1. Switch off the power supply and the compressed air supply.

2. Loosen the housing screws (è Fig. 1, 3 ). Remove the cover of the housing.

3. Disconnect electrical and pneumatic connection.

4. Loosen 4 mounting screws (Fig. 12, 3 ) from the drive and remove the positioner with mounting

adapter.

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CMSX-...-C-U-F1-...

11 Replacement and repair

 Send defective devices to the Festo repair service. Information about spare parts and accessories

è www.festo.com/catalogue.

Note

Different settings will result in different characteristics.
 Check especially when replacing the positioner to see which settings are necessary

and make sure that these are restored, if necessary.

The device has certain presettings from the factory.
Presettings for configuration è Tab. 16
Presettings for parameterisation è Tab. 18.
Before replacement:
 Check the pneumatic tubing connection of the device.
 Check the complete electric cabling of the device.
 Check device settings and parameterisation before using and replacing the device.

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CMSX-...-C-U-F1-...

12 Fault clearance

Malfunction Possible cause Remedy

Error in positioning Initialization has not been

executed
Fast-switching valves of the CMSX
defective
Mechanical connection between
CMSX and drive defective

Failure of the compressed air
supply or unstable compressed air

supply
Drive tends to overswings
or permanent oscillations

The process valve does
not take on the correct
position if there is an
operating voltage failure.
The device does not react
to setpoint value
specifications.

The device does not react
to analogue setpoint value
specification.

The semi-rotary drive runs
to an end position, even
though another setpoint
value is specified.

Tab. 26

Controller parameter incorrectly

set; small drives may require flow

control valves

Tubing connection between CMSX

and semi-rotary drive defective

Compressed air supply is lacking Establish compressed air supply

Display shows the Sensor Error

message, as the sensing range of

the sensor has been exceeded.

The device is in the “Controller

stopped” operating status. The

controller is inactive.

The device reacts to a signal at the

control port D-IN.

Setpoint input is inactive Activate desired setpoint input

The device is operated in the

manual override operating mode.

The operating voltage supply is

outside the permissible range or

switched off. The fast-switching

valves take on the neutral position

(è Section 3.2).

Execute initialization
(è Section 7.7.2)
Send the device to the Festo repair
service
Restore mechanical connection
(è Section 6.1);
tighten coupling, if necessary;
replace defective coupling
Establish compressed air supply;
minimise pressure fluctuations
(è Section 6.2)
Correct setting (è Section 7.6.7);
reduce speed with flow control
valves
Correct tubing connection between
CMSX and semi-rotary drive
(è Section 3.2).

Correct alignment and mechanical
connection between CMSX and
semi-rotary drive (è Section 6.1).
Start operation in order to activate
the controller (è Tab. 8)

Deactivate control signal at the
control port D-IN or correct
parameterisation (è Tab. 16)

(è Tab. 16)
Activate automatic mode
(è Tab. 10).
Check operating voltage supply
(è Section 13)

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CMSX-...-C-U-F1-...

13 Technical data

CMSX-...-S-A1-C-U-F1-D-... -A -C

Sensing range in degrees [°] 0 ... 100
Conforms to standard VDI/VDE 3845 (Namur)
Protection against short circuit yes
Measured variable
– CMSX-S Rotation angle
– CMSX-SE Rotation angle or stroke
Protection against polarity reversal – For setpoint value

– For operating voltage connection
Display type Backlit LCD
Setting options Via display and keys
Type of process valve characteristic
curves

Leakproof characteristics Adjustable via SPMIN and SPMAX
Control range adaptation Adjustable
Alarm for exceeding limit value no
Active direction Adjustable, rising/falling
Operating pressure [bar] 3 ... 8
Setpoint value [mA] 0 ... 20; 4 ... 20

[V] 0 ... 10
Safety instructions – behaviour in case of
voltage failure
Operating voltage range DC [V DC] 21.6 ... 26.4
Max. load resistance of current output [Ω] 500
Idle current [mA] 100 ... 300
Max. current consumption [A] 1
Max. output current [mA] 500
Switching level [V] Signal 0:  5; Signal 1:  10
Max. current consumption of the digital

[mA] 6
inputs at 24 V
Size of the dead zone [%] 0.5 ... 10
Operating medium Compressed air to ISO 8573-1:2010 [7:4:4]
Note on the operating medium Lubricated operation not possible
CE marking,
(Declaration of conformity è www.festo.com)
Protection class - in mounted status IP65
Ambient temperature [°C] -5 ... 60

1) The product is intended for use in industrial environments. Outside of industrial environments, e.g. in commercial and mixed-resid

ential areas, actions to suppress interference may have to be taken.

Tab. 27 Technical data – part 1

– Linear
– Equal percentage (1:25, 1:33, 1:50)
– Freely adjustable over 21 support points

Adjustable;

hold

opening, closing

To EU EMC Directive

1)

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CMSX-...-C-U-F1-...

CMSX-P-S-A1-C-U-F1-D-... -A -C

Storage temperature [°C] -20 ... 60
UV resistance yes
Vibration resistance according to DIN/IEC
60068, Part 2-6
Resistance to shocks according to DIN/IEC
60068, part 2-29

0.15 mm path at 10 ... 58 Hz2);
2 g acceleration at 58 ... 150 Hz

2)

±15 g at 11 ms duration; 5 shocks per direc

2)

tion
Cable connector M20x1.5
Type of mounting on flange to ISO 5211, with accessories
Max. product weight [g] 970
Pneumatic port G1/8
Standard nominal flow rate
– CMSX-...-50 [l/min.] 50
– CMSX-...-130 [l/min.] 130
Materials
– Housing PCs
– Threaded coupling (coupling) High-alloy stainless steel
– Seals NBR
– Adapter plate Aluminium,
– Plate (back plate) Aluminium,
– Cable connection PA

2) Only in combination with a mounting adapter according to accessories (è www.festo.com/catalogue)

Tab. 28 Technical data – part 2

Festo – CMSX-...-C-U-F1-... – 1506a English 59

CMSX-...-C-U-F1-...

Index

A

Actual output value 20, 21..................

Alarm output 20, 21.......................

Automatic operation 31....................

B

Basic menu level 30.......................

C

Control input 20, 21.......................

Control parameters 40.....................

D

Dead zone 39............................

Direction of movement 34, 36................

E

Earthing 21..............................

F

Fault clearance 57.........................

Feature 8................................

Firmware version 45.......................

Functional earth 5, 20......................

I

Information 45............................

Initial positions 30.........................

Initialization 45, 49........................

Input setpoint value 20.....................

Installation

– electrical 18............................

– Mechanical 14..........................

– Pneumatic 17...........................

K

Key functions 39, 43.......................

M

Maintenance 54...........................

Manual override 31........................

Menu level 32............................

Menu structure 28, 30......................

O

Operating elements 5, 6....................

Operating voltage supply 21.................

Operational level 29.......................

P

Performance test 47.......................

Pin allocation, Pin 1 to pin 14 21..............

Pin numbering 20.........................

Pneumatic ports 17........................

Ports 5, 6, 17.............................

Presettings 25............................

Process valve characteristic curve 34, 37.......

R

Repair 56................................

S

Status output 20, 21, 34....................

System structure 9........................

T

Type code 8..............................

V

Valve operating area 41....................

60 Festo – CMSX-...-C-U-F1-... – 1506a English

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Copyright:
Festo AG & Co. KG
Postfach
73726 Esslingen
Germany

Phone:
[phone]

Fax:
[phone]

e-mail:
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Internet:
www.festo.com

Original: de