AUMA AUMATIC ACExC Manual de usuario

Actuator controls

AUMATIC ACExC 01.2

Profibus DP

To be used in combination with the operation instructions only!

●The present short instructions do NOT replace the operation instructions!

●They are only intended for persons already familiar with the operation instructions

where safety instructions, assembly, operation and commissioning are already described

in detail!

●The operation instructions must always be available.

FO connectionShort instructions

Table of contents Page

31. Short description...................................................................................................................

42. FO connection........................................................................................................................

42.1. Basic information

52.2. Terminal compartment: open

62.3. FO cables: connect

72.4. Terminal compartment: close

83. Network topologies................................................................................................................

83.1. Line topology

93.2. Star topology

103.3. Ring topology (two-fibre ring)

124. Corrective action....................................................................................................................

124.1. LED indications

124.2. Troubleshooting

134.2.1 Line and star topology

134.2.2 Ring topology

155. Technical data.........................................................................................................................

155.1. FO coupler

166. Appendix.................................................................................................................................

166.1. Calculation of achievable FO range

176.2. Measuring methods

176.3. Reference addresses

176.4. Literature

Table of contents

1. Short description

AUMA actuator controls with FO connection are intended for use in optical fieldbus

networks.

The FO connection integrated in the electrical connection enables the conversion

from electrical RS-485 signals into optical signals and vice versa.

FO connection behaviour is transparent at the bus, i.e. control of AUMA actuators

via bus is identical to control via copper cables (RS-485).

Contrary to RS-485 based systems, different topologies are possible:

●Line topology

●Star topology

●Redundant ring topology

Apart from the large distances, FO cables offer further advantages:

●In environments with electromagnetic interference

●Lightning arrester or overvoltage protection

●Equipotential earth bonding and earthing

●Galvanic separation of the actuator

●Use of common cable trenches for power and signal cables

●Prevention of interference emissions along the transmission line

This allows for customised solutions and various applications such as water/waste

water industries, tunnelling, power plants, thermal industry or telecontrol engineering.

Short description

2. FO connection

2.1 Basic information

Hazardous voltage!

Risk of electric shock.Failure to observe this warning can result in death or serious

injury.

→The connection must be carried out exclusively by suitably qualified personnel.

→Prior to opening: Disconnect both system and device from the mains.

→Observe basic information contained in this chapter.

→Observe safety instructions contained in the operation instructions pertaining

to the actuator.

Eye damage caused by open fibre optic cable ends!

→NEVER look directly into open cable ends or FO cable connections.

Connection or receive problems when ignoring the installation instructions!

→Only use FO cable connection (connector types) with the wiring techniques in-

dicated in these instructions.

→Only mount connector types with locking mechanisms in the defined position.

→Protect unused FO cable connections against contamination or dust with protec-

tive caps/plugs supplied by the factory.

→Connect incoming FO cable with the optical receiver, the outgoing FO cable

with the optical sender. NOT vice versa!

→Do NOT kink FO cables! Observe bending radius of cable manufacturer.

Cable and wire types

Table 1: Cables and wires according toDIN VDE 0888 part 3:

62.5 µm or 50 µmCore diameter

62.5/125 µm Multi-mode graded-index fibre

50/125 µm glass fibre

Fibre

62.5/125 µm: 2,600 m

50/125 µm: 1,400 m

Range

Recommendation: < 3.0 dB/km

Damping coefficient

Remove outer sheathing of FO cable at a length of approx. 25 cm to enable ring

wiring in the terminal compartment.

Figure 1: Plug type FSMA

Controls mounted to wall bracket

In the event of heavy vibration of the valve, we recommend mounting the actuator

controls separately from the actuator on a wall bracket. For information about the

wall bracket, refer to operation instructions for the actuator.

FO connection

2.2 Terminal compartment: open

Figure 2: Plug/socket connector: left KES, right KES flameproof

[1] Cover

[2] Screws for cover

[3] O-ring

[4] Terminal compartment: Type of protection Ex e

[5] Terminal compartment: Type of protection Ex d

[6] Frame

Hazardous voltage!

Risk of electric shock.

→Disconnect device from the mains before opening.

1. Loosen screws [2] and remove cover [1].

➥Terminal compartments [4] and [5] are designed either in type of protection Ex

e (increased safety) or in type of protection Ex d (flameproof enclosure). Hereby,

the flameproof interior compartment of the actuator (Ex d) remains closed.

2. Insert cable glands with Ex e approval and suitable for connection cables.

➥The enclosure protection IP… stated on the name plate is only ensured if suita-

ble cable glands are used. Example: Name plate shows enclosure protection

IP 68.

3. Seal cable entries unused cable entries with approved plugs suitable for the

required protection type.

4. Remove cable sheathing and insert the wires into the cable glands.

5. Fasten cable glands with the specified torque to ensure required enclosure

protection.

FO connection

2.3 FO cables: connect

1. Remove safety circlip and take FO coupler off top head rail.

Figure 3: FO coupler on top head rail

2. Place FO coupler on fixing plate in "parking position"

Figure 4: FO coupler in "parking position"

3. Insert FO cables through cable glands.

4. Link FO connectors crosswise:

Optical output of actuator 1 with optical input of actuator 2.

Optical input of actuator 1 with optical output of actuator 2.

Figure 5: Connection example

FO connection

2.4 Terminal compartment: close

Figure 6: Plug/socket connector: left KES, right KES flameproof

[1] Cover

[2] Screws for cover

[3] O-ring

[4] Terminal compartment: Type of protection Ex e

[5] Terminal compartment: Type of protection Ex d

[6] Frame

1. Clean sealing faces of cover [1] and housing.

2. Plug/socket connector designed as KES flameproof: Preserve joint surfaces

with an acid-free corrosion protection agent.

3. Check whether O-ring [3] is in good condition, replace if damaged.

4. Apply a thin film of non-acidic grease (e.g. petroleum jelly) to the O-ring and

insert it correctly.

Flameproof enclosure, danger of explosion!

Risk of death or serious injury.

→Handle cover and housing parts with care.

→Joint surfaces must not be damaged or soiled in any way.

→Do not jam cover during fitting.

5. Fit cover [1] and fasten screws [2] evenly crosswise.

FO connection

3. Network topologies

When connecting several field devices (actuators) in a network, the structure is called

network topology. AUMA offers different network topologies.

3.1 Line topology

Figure 7: Structure for line topology

Max. FO cable range in km (observe technical data!)

[1] FO T-coupler within electrical connection of ACExC 01.2

[2] FO PP-coupler within DCS (imperatively required)

[3] FO PP-coupler for any Profibus DP field device

[4] Any Profibus DP field device

Table 2: Number of FO devices (actuators) connected in series

Maximum number of FO devicesBaud rate [kbit/s]

369.6

3619.2

3645.45

3693.75

18187.5

9500

41,500

Special features of line topology

The optical signal is converted into an electrical signal at each device. Prior to

transmission to the next device, the electrical signal is converted into an optical

signal.

Interruption of an FO cable (case A) or failure of an FO connection board (case B)

results in loss of control for the subsequent actuators:

Case A

(standard)

As soon as the electrical connection is removed from the ACExC 01.2 , FO connection

of this actuator is no longer available. As a consequence, communication with the

subsequent actuators is lost. To prevent this, FO connection used in the ACExC

01.2 can also be externally supplied with 24 V DC.

Network topologies

Case B

(option)

As soon as the actuator is switched off (motor voltage), the FO connection board of

this actuator is no longer available. As a consequence, communication with the

subsequent actuators is lost. To prevent this, the complete ACExC 01.2 can be

externally supplied with 24 V DC.

3.2 Star topology

Figure 8: Structure for star topology

Max. FO cable range in km (observe technical data!)

[1] FO PP-coupler within electrical connection of ACExC 01.2

[2] LWL Stich-Koppler in der Leittechnik (zwingend erforderlich)

[3] LWL Stich-Koppler für Beliebiges Profibus DP Feldgerät

[4] Any Profibus DP field device

Table 3: Number of FO devices (actuators) connected in series

Maximum number of FO devicesBaud rate [kbit/s]

369.6

3619.2

3645.45

3693.75

18187.5

9500

41,500

Special features of star topology

Failure of an FO cable section or of an actuator's FO connection board has no impact

on the operability of the remaining actuators.

Network topologies

3.3 Ring topology (two-fibre ring)

Figure 9: Structure for ring topology

Max. FO cable range in km (observe technical data!)

[1] FO ring coupler within electrical connection of ACExC 01.2

[2] FO ring coupler within DCS (imperatively required)

[3] FO ring coupler for any Profibus DP field device

[4] Any Profibus DP field device

Information Maximum number of FO device (actuators) connected in series is 36.

Special features of ring topology

●The interruption of an FO cable between two actuators is recognised by the

redundancy modules. Both display and bus indicate: Wrn FOC. The network

is then operated as an optical line and all actuators remain available.

●If one module fails (i.e. when power supply is interrupted), only the actuator

connected to this module is disconnected from the ring, the remaining network

stays operative as a line. All other actuators remain available.

●The actuators have a redundant FO cable connection with a standard Profibus

DP interface (not redundant).

Special features of the ring topology during configuration

The following conditions have to be met for the optical ring

●Configuration of a non-existent bus station with the highest possible bus address.

●Increase of the retry value to a minimum of 3.

●Check slot time and set to a minimum of 900.

●Calculation of run times within the ring:

Tring = (n – 1) * TFO coupler + L * tFO

Tring Max. run time within the ring

Network topologies

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