Festo CTEU-AS Description, Installation And Interfaces

Bus node
CTEU-AS

Festo AG & Co. KG

Postfach
73726 Esslingen
Germany
[phone]
www.festo.com

Description
Installationand interfaces

8032384
1405NH
[8032386]

Original: de

Bus node CTEU-AS English.............................................

1 Instructions on this description

This description includes information for mounting the bus node on an I-port-com­patible device from Festo (e.g. valve terminal with I-port interface) and for installa­tion of this combination in a higher-level control system.

AS-Interface®and TORX®are registered trademarks of the respective
trademark owners in certain countries.

2Intendeduse

The bus node type CTEU-AS has been designed exclusively for use as a slave on
the AS-interface fieldbus. It may only be used in its original status without unau­thorised modifications and only in perfect technical condition.
The bus node is intended for use in an industrial environment. Outside of industrial
environments, e.g. in commercial and mixed-residential areas, actions to suppress
interference may have to be taken.

3Targetgroup

The target group for this description consists of trained specialists in control and
automation technology who have experience with installationof stations on the
AS-interface fieldbus.

4Mounting

War n ing

Danger of injury to people, damage to the mach ine and system resulting from
uncontrolledmovements of the actuators and undefined switching states

• Switch off the operating and load voltage supplies.

• Switch off compressed air supply.

• Exhaust the pneumatics valve terminal.

Note

Damage to the electronics
The bus node includes electrostatically sensitive devices.

• Do not touch any electrical/electronic components.

• Observe the handling specifications for electrostatically sensitive devices.

Note

Use cover caps to seal unused connections. Youwill then achieve degree of pro­tection IP65/IP67.

Information on mounting the bus node on the decentralised electrical
connecting plate CAPC-... can be found in the mounting instructions that
accompany the connectingplate.
The bus node CTEU-AS supports only the X1 connection of the electrical

connecting plate CAPC-.... The X2 connectionon the electrical connecting

plate CAPC-... is without a function for the CTEU-AS bus node.

For mounting the bus node on a valve terminal with I-Port interface, proceed as
follows:

1. Inspect the seals and sealing surfaces on bus node and valve terminal.

2. Plug the bus node onto the valve terminal in the right position and without tilt­ing.

3. Screw the three self-tapping screws in by hand. You can use the threads already
present when you screw it in again.

4. Tighten the screws by hand in diagonally opposite sequence, with a tightening
torque of 0.7 ± 0.1 Nm.

5 Connection and display components

The following electrical connection and display components can be found on the
bus node:

1

3

4

2

1 DIL switch group ( chap. 7.2)
2 Status LEDs (status display/

diagnostics  chap. 8)

3 M12 plug for AS-interface bus and

additional power supply (AS-i In)
( chap. 6)

4 M12 socket, AS-interface bus and

additional power supply (AS-i Out)
( chap. 6 )

Fig. 1

6 Connect AS-interface bus and auxiliary power supply

The bus node also supplies voltage to equipment connected via the I-port inter­face.

War n ing

Danger of electric shock

• Only use PELV circuits in accordance with IEC/EN 60204-1 (protective extra­low voltage, PELV) for the electrical power supply.

• Observe also the general requirements for PELV power circuits in accordance
with IEC/EN 60204-1.

• Only use voltage sources which guarantee reliable electrical isolation of the
operating voltage in accordance with IEC/EN 60204-1.

Through the use of PELV circuits, protection against electric shock (protection
against direct and indirect contact) is ensured in accordance with IEC/EN 60204-1.
Observe with branch lines:
– the maximum overall length of the AS-interface bus (100 m without repeater/

extender)

– the line length of the load voltage connection cable (depends on the current

consumption of the valve terminal and fluctuations in load voltage).

M12 plug, AS-interface In

Pin Allocation

1

3

2

4

1 AS-interface +

2 0 V (auxiliary power supply)

3 AS-interface –

4 24 V (auxiliary power supply)

Fig. 2

M12 socket, AS-interface Out Pin Allocation

4

23

1

1 AS-interface +

2 0 V (auxiliary power supply)

3 AS-interface –

4 24 V (auxiliary power supply)

Fig. 3

Note

Electromagnetic interference

• Make the connection to functional earth via the connected device or the elec-

trical connecting plate CAPC-....

Functional test:

– The LED “PS” is illuminated green when the power supply is correctly presented.
– The LED “X1” is lit green if a device is connected and the I-Por t communication is

ready to function ( chap. 8).

7 Basic settings for fieldbus communication

7.1 Removal of the DILswitch cover

To set the DIL switches, the cover must be removed:

1. Switch off the power supply.

2. Unscrew the two mounting screws of the transparent cover and remove the
cover.

7.2 Setting the DIL switches

The bus node has a DIL switch group with 2 DIL switches. Set the valve configura­tion with DIL switches 1 and 2.

1

1 DILswitches1and2
Fig. 4

I/O configuration,
AS-interface slaves

Valve configuration DIL

switches
1 2

8I/8O – The first 8 solenoid coils are actuated.

– The number of valvesis not checked.
– The profile for both AS-interface slaves is 7.A.7

(factory setting).

OFF OFF

16 I/16 O – The first 16 solenoid coils are actuated.

– The number of valvesis not checked.
– The profile for both AS-interface slaves is 7.A.A.

ON OFF

4I/4O – The first 4 solenoid coils are actuated.

– The number of valvesis not checked.
– The profile of the AS-interface slave is 7.F.E.

(standard slave).

OFF ON

– Reserved ON ON

Fig. 5

7.3 Mounting of the DIL s witch cover

1. Place the cover carefully on the bus node. Make sure that the seal is seated
correctly!

2. Tighten the mounting screws with max. 0.4 Nm with a Torx screwdriver
(size T10) or a slot screwdriver that fits.

7.4 Address allocation

Before connecting to the AS-Interface bus: Assign a free address to the slave.
Addressing can be performed via an AS-interface addressing device in accordance
C.S.2.1, an addressing cable and through an AS-interface master.
The number of connected solenoid coils is set through the DIL switches
( chap. 7.2). Depending on this setting, the number of slave addresses, IO and
ID code are automatically configured and saved ( subsequent table).

Number of
solenoid coils

Slave
address

Profile 1 Profile 2 AS-interface-

master type

1…4 1Standard S-7.F .E – M1 … M4

1…8 1Extended A+B S-7.A.7 S-7.A.7 M4

1…16 1ExtendedA+B S-7.A.A S-7.A.A M4

Fig. 6

Assignment of slave addresses to physical outputs/valves of the connec­ted devices can be found in the respective product documentation.

8 Status display/diagnostics

8.1 Status display via LEDs
PS (power system)– X1 (I-port)
LED indic ator Status and significance
PS X1

Both LEDs light green:
– additional voltage present

LED “PS” lights green, LED “X1” flashes green
– additional voltage present

– short circuit at a solenoid coil or other diagnosis of the I-port device

(peripheral area)

Both LEDs flash green:
– additional voltage missing

LED “PS” lights green, LED “X1” flashes red:
– additional voltage present

– no I-port device detected
– peripheral faults

LED “PS” illuminated green, LED “X1” illuminated red:
– additional voltage present

– short circuit/overload behind the AS-interface coil
– peripheral error, I-port connection interrupted

Fig. 7

AS-i (AS-interface)
LED

indicator

Status and significance

LED illuminated green:
– AS-interface voltage applied

– no error is present.

LED is off:
– AS-Interface voltage not applied

LED illuminated red:
– AS-interface address not set (equals 0)

– no co mmunication

LED flashes red/green:
– peripheral fault (e.g. no additional vo ltage, no I-port)

Fig. 8

Note

AS-interface has an integrated watchdog function, which can be activated/deac­tivated via the parameter bit P0.
Valid is:
–P0=1 Watchdog activated (delivery status)
–P0=0 Watchdog deactivated
If Watchdog is activated, the outputs are reset as soon as bus communication
malfunctions.

8.2 Error diagnostics via AS-interface bus
AS-interface

parameter-entry bits

Fault s

P3 P2 P1 P0

– 1 1 0 short circuit/overlo ad behind the AS-interface coil

– 1 0 1 no additional voltage

– 0 1 1 no I-port device found

– 1 0 0 short circuit at a solenoid coil

Fig. 9

9Technicaldata

General

Degree of protection through housing
(in accordance with E N 60529)

IP65/67

1) 2)

AS-interface specification 3.0

Protection against electric shock
(Protection against direct and indirect contact in
accordance wi th IEC/DIN 60204-1)

Through use of PELV circuits

Electromagnetic compatibility (EMC)

3)

– emitted interference
– resistance to interference

See declaration of conformity
 www.festo.com

Vibrationand shock
(as per EN 60068)

Severity level (SL)4)for mounting on

– vibration (part 2 – 6) Wall: SG 2, H-rail: SG 1

– shock (part 2 – 27) Wall: SG 2, H-rail: SG 1

– continuous shock (part 2 – 29) Wall and H-rail: SG 1

Temperature range

– storage/transport –20… +70°C

2)

– environment, operation –5 … +50 °C

2)

Materials PA(reinforced), PC, NBR, steel (galvanized),

RoHS-compliant circuit boards

1) Requirement: Bus node mounted completely, plug connector in the plugged-in status or provided with
cover cap.

2) Note that connected devices may only satisfy a lower degree of protection, a smaller temperature
range, etc.

3) The bus node is intend ed for use in an industrial environme nt. Outside of industrial environments,
e.g. in commercial and mixed-residential areas, actions to suppress interference may have to be taken.

4) Explanation of the severity level  subsequent tables

Fig. 10

Vibration load
Frequency range [Hz] Acceleration [m/s2] Deflection [mm]
Severity

level 1

SL2 SL1 SL2 SL1 SL2

2…8 2…8 – – ±3.5 ±7

8…27 8…27 10 10 – –

27 … 58 27 … 60 – – ±0.15 ±0.75

58 … 160 60 … 160 20 50 – –

160 … 200 160 … 200 10 10 – –

Fig. 11

Shock load
Acceleration [m/s2] Duration [ms] Shocks per direction
SL1 SL2 SL1 SL2 SL1 SL2

±150 ±300 11 11 5 5

Fig. 12

Continuous shock load
Acceleration [m/s2] Duration [ms] Shocks per direction

±150 6 1000

Fig. 13

Power supply

AS-interface bus connecti o n

– voltage range (protected against incorrect

polarity)

26.5 … 31.6 V DC

– residual ripple š20 mVpp

AS-interface auxiliary power supply

– voltage range (protected against incorrect

polarity)

24 V DC _10%

– residual ripple 4mVpp

Intrinsic current consumption

– bus node electronics Max. 30 mA

– bus node on device (e.g. valve terminal) Max. 60 mA

– bus node on electrical connecting plate

CAPC-...

Max. 30 mA

Load current for the AS-interface slave Max. 700 mA

(A load of max. 700 mA can be connected to
the “AS-interface Out” socket.)

Fig. 14

Technical data of the connected equipment can be found in the respective
product documentation.