AUMA AUMATIC AC 01.2 Manuale
Actuator controls
AUMATIC AC 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
wheresafety 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. FO terminal compartment: open 52.3. FO cables: connect 72.4. FO terminal compartment: close
83. Network topologies................................................................................................................ 83.1. Line topology 93.2. Star topology 103.3. Loop topology (two-fibre loop)
124. Corrective action.................................................................................................................... 124.1. LED indications
135. Technical data......................................................................................................................... 135.1. FO connection board:
156. Appendix................................................................................................................................. 156.1. Measuring methods 156.2. Reference addresses 156.3. Literature
2
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 passive at the bus, i.e.control of AUMA actuators is via
bus is made in the same way as for a connection via copper cables (RS-485).
Contrary to RS-485 based systems, different topologies are possible:
●Line topology
●Star topology
●Redundant loop 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 for various applications such as water/waste
water industries, tunnelling, power plants, thermal industry or telecontrol engineering.
3
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 using FO cable connection (connector types) with the wiring techniques
indicated 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 DINVDE 0888 part 3:
Multi-mode 62.5 (50)/125 μm
Single-mode 9/125 μm
Fibre
62.5 (50)/125 μm glass fibre (multi-mode): 2,500 m
9/125 μm glass fibre (single-mode): 15 km
Range
Recommendation: <2.0 dB/km (multi-mode) or <0.4 dB/km
(single-mode)
Damping coefficient
Remove outer sheathing of FO cable at a length of approx. 42 cm to enable loop
wiring in the terminal compartment.
Figure 1: Plug types: ST or SC (depending on version)
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.
4
FO connection
2.2 FO terminal compartment: open
The AUMA plug/socket connector (SDE bus) is equipped with a connection board
for connecting the fibre optic cables.When removing the cover [1], the connection
board is easily accessible.
Figure 2: AUMA plug/socket connector SDE bus
[1] Cover (FO terminal compartment)
[2] Screws for cover
[3] O-ring
[4] Cable entries for fibre optic cables
[5] Blanking plugs
1. Loosen screws [2] and remove cover [1].
2. Insert cable glands suitable for FO cables.
➥The enclosure protection IP…stated on the name plate is only ensured if suita-
ble cable glands are used.
➥Example: Name plate for enclosure protection IP 68.
3. Seal unused cable entries [4] with suitable blanking plugs [5].
4. Insert the wires into the cable glands.
2.3 FO cables: connect
Figure 4: Connection board with connector types SC (left), ST (right)
[1] Channel 1
[2] Channel 2 (for loop or line topology)
[3] Protective cap/plug
TX Optical output
RX Optical input
5
FO connection
A label on the connector indicates the wiring (fibre type, connector type).
Table 2: Markings on the label
FO cable connector typeFO cable fibre type
ST = Straight tip (BNC connector)SM = Single-mode SC = Subscriber connector (Snap-in connector)MM = Multi-mode
FO cables: connect
1. Install cables within the terminal compartment in a loop to achieve the highest
possible bending radius.
Figure 5: Wiring within in the terminal compartment
2. Measure and record the damping of the FO cables before connection.
3. Link connectors crosswise:
Output TX of actuator 1 to input RX of actuator 2
Input RX of actuator 1 to input TX of actuator 2
Figure 6: Example of ST BNC connector
➥Make sure that:
- the bayonet-type connection of connector type ST is properly engaged
- the straight tip of connector type SC fully mates the FO cable socket.
4. Protect unused FO cable connections against contamination or dust with pro-
tective caps/plugs supplied by the factory.
6
FO connection
2.4 FO terminal compartment: close
Figure 7: AUMA plug/socket connector SDE bus
[1] Cover
[2] Screws for cover
[3] O-ring
[4] Cable entries for fibre optic cables
[5] Blanking plugs
1. Clean sealing faces of cover [1] and housing.
2. Apply a thin film of non-acidic grease (e.g.petroleum jelly) to the sealing faces.
3. Check whether O-ring [3] is in good condition, correctly insert O-ring.
4. Fit cover [1] and fasten screws [2] evenly crosswise.
5. Fasten cable glands with the specified torque to ensure the required enclosure
protection.
7
FO connection
3. Network topologies
When connecting several terminal devices (actuators) in a network, the structure is
called network topology.AUMA offers 3 different network topologies.
3.1 Line topology
Figure 8: Structure for line topology
Max. FO cable range in km (observe technical data!)
[1] Channel 1
[2] Channel 2
[3] Any Profibus DP device
[4] FO coupler at DCS (mandatory)
[5] FO coupler for any Profibus field device
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 a loss of control for the subsequent actuators:
Case A
(standard)
As soon as the electrical connection is removed from the , the FO connection of this
actuator is no longer available. As a consequence, communication with the
subsequent actuators is lost.To prevent this, the FO connection used in the can also
be externally supplied with 24 V DC.
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
subsequentactuatorsislost.Topreventthis,thecompletecanbeexternallysupplied
with 24 V DC.
8
Network topologies
Information ●Communication of the following devices is monitored by channel 2.In the event
of loss of communication (i.e.no response from the next device), the shows
the following indication: Wrn FOC.
●If the actuator is the last device of the line topology, the monitoring function
should be deactivated (parameter FO cable monitoring M0709 = Off (final devi-
ce).
●Ensure proper termination for RS-485 connection of FO coupler.
3.2 Star topology
Figure 9: Structure for star topology
Max. FO cable range in km (observe technical data!)
[1] Channel 1
[2] Channel 2
[3] Any Profibus DP field device
[4] FO coupler at DCS (mandatory)
[5] FO coupler for any Profibus field device
Special features of star topology
Failure of an FO cable section or of an actuator's FO connection board has no effect
on the operability of the remaining actuators.
Information ●As all AUMA actuators are operated at the end of the FO cable section and
controlled via channel 1, the parameter FO cable monitoring M0709 should be
set to Off (final device).
●Ensure proper termination for RS-485 connection of FO coupler.
9
Network topologies
3.3 Loop topology (two-fibre loop)
Figure 10: Structure for loop topology
Max. FO cable range in km (observe technical data!)
[1] Channel 1
[2] Channel 2
[3] Integration of any Profibus DP device (option)
[4] FO coupler at DCS (mandatory)
[5] FO coupler for any Profibus field device
Special features of loop topology
●The interruption of an FO cable between two actuators is recognised by the
redundancymodules(viaparameterFO cable monitoring =On (not final device)).
Both display and the 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 the voltage supply is interrupted), only the actuator
connected to this module is disconnected from the loop, 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).
Cable routing and PLC fault evaluation
●To increase service safety, install cables for go-and-return in the loop on sepa-
rate lines.
●To achieve complete monitoring of the redundant optical loop, all FO fault signals
(including the fault output of the FO coupler) at the master must be evaluated
by the PLC controls.
Setting response and slot time
The following settings should performed at the master:
10
Network topologies
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