AUMA AM 01.1, AMExB 01.1, AMExC 01.1, AM 02.1 Operation Instructions Manual

Name: AUMA AM 01.1
Brand: AUMA
SKU: 19673260
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Certificate Registration No.

12 100/104 4269

Actuator controls

Operation instructions

AUMA MATIC

AM 01.1/ AM 02.1

AMExB 01.1/ AMExC 01.1

Modbus

Actuator controls AUMA MATIC AM/ AMExB/ AMExC Modbus Operation instructions

Scope of these instructions: These instructions are valid for multi-turn actuators of type ranges

SA(R) 07.1 – SA(R) 16.1 and SA(R)ExC 07.1 – SA(R)ExC 16.1 and for part-turn actuators of type ranges SG(R) 05.1 – SG(R) 12.1 and SGExC

05.1 – SGExC 12.1 with the controls AUMA MATIC AM 01.1/ AM 02.1 or AMExB 01.1 and AMExC 01.1 and Modbus interface.

Table of contents Page

1. Safety instructions 4

1.1 Range of application 4

1.2 Commissioning (electrical connection) 4

1.3 Maintenance 4

1.4 Warnings and notes 4

2. Short description 4

3. Transport and storage 5

4. General information about Modbus 5

4.1 Basic characteristics 5

4.2 Modbus Basic functions 6

4.3 Transfer mode 6

4.4 Bus access 6

4.5 Communication 6

4.6 Protection functions 6

4.7 Modbus RTU mode 6

5. Technical data 7

6. Design AUMA MATIC Modbus 10

7. Electrical connection 11

7.1 Power supply (standard) 11

7.2 Bus connection (standard) 12

7.3 Fitting the cover 13

7.4 Remote position transmitter 14

7.5 AUMA MATIC on wall bracket 14

7.6 Test run 14

7.7 Mains and bus connection for Ex-version with plug/ socket connector / terminal board (KP) 15

7.8 Mains and bus connection for Ex-version with plug-in terminal connection (KES) 17

7.9 Redundant bus connection 18

7.10 Bus cables 19

7.11 Setting the Modbus interface 20

7.12 Setting the communication parameter 21

7.13 Setting parameter seating mode in end position CLOSED, parity bits and number of stop bits 21

7.14 Setting the Modbus address: 21

7.15 Setting the baud rate 22

8. Commissioning with controls 23

8.1 Introduction 23

8.2 Overview over the Modbus functions for data transmission 23

8.3 Modbus function and corresponding offset addresses of the AUMA MATIC 23

9. Input data 24

9.1 Reading the actuator signals from the actuator using register functions 24

9.2 Description of the input data 26

9.3 Reading the feedback signals from the actuator using status functions 30

10. Process representation output 32

10.1 Transmitting operation commands to or reading out from the actuator using register functions 32

10.2 Description of the output data 32

10.3 Transmission of operation commands to the actuator using coil functions 33

Actuator controls AUMA MATIC AM/ AMExB/ AMExC

Operation instructions Modbus

Page

11. Operation parameters of the actuator 34

12. Description of actuator functions 41

12.1 Operation commands for OPEN/ CLOSE operation 41

12.2 Positioner 41

12.3 Stepping mode 42

13. Failure function 43

14. Description Modbus interface 44

14.1 Indication during system start-up: 44

14.1.1 Indications of operation LEDs 7 to 0 44

14.1.2 System displays LEDs L1 to L4 45

14.2 Customer inputs assignment of the Modbus interface (option) 45

14.3 Modbus connection assignment 46

14.4 Assignment positioner connections 46

14.5 Checking/ setting the switches on the logic board 47

15. Troubleshooting and corrective actions 48

15.1 Actuator can not be controlled via Modbus 48

15.2 Position feedback does not function 51

15.3 Actuator is not switched off by the limit switch in direction CLOSE 51

15.4 Actuator stops immediately after having started 51

15.5 Actuator does not signalise reference operation, connection failure position transmitter or signal interruption position transmitter 51

15.6 Measuring the Modbus signals using an oscilloscope 51

16. Appendix A Standard wiring diagram 52

16.1 Legend for standard wiring diagram 53

16.2 Additional information to the wiring diagram legend 53

17. Appendix B Proposed external wiring diagram 54

18. Appendix C Literature references 57

19. Appendix D Connecting the cable shield for AUMA MATIC AMExB/ AMExC 01.1 57

Index 59 Addresses of AUMA offices and representatives 60

1. Safety instructions

1.1 Range of application AUMA actuators are designed for the operation of industrial valves,

e.g. globe valves, gate valves, butterfly valves and ball valves. For other applications, please consult us. The manufacturer is not liable for any possible damage resulting from use in other than the designated appli

cations. Such risk lies entirely with the user. Observance of these operation instructions is considered as part of the controls’ designated use.

1.2 Commissioning (electrical connection)

During electrical operation, certain parts inevitably carry lethal voltages. Work on the electrical system or equipment must only be carried out by a skilled electrician himself or by specially instructed personnel under the control and supervision of such an electrician and in accordance with the applicable electrical engineering rules.

1.3 Maintenance The maintenance instructions must be strictly observed, otherwise a safe

operation of the multi-turn actuator/ the controls is no longer guaranteed.

1.4 Warnings and notes Non-observance of the warnings and notes may lead to serious injuries or

damage. Qualified personnel must be thoroughly familiar with all warnings and notes in these operation instructions. Correct transport, proper storage, mounting and installation, as well as careful commissioning are essential to ensure a trouble-free and safe operation. The following references draw special attention to safety-relevant procedures in these operation instructions. Each is marked by the appropriate pictograph.

This pictograph means: Note!

“Note” marks activities or procedures which have major influence on the correct operation. Non-observance of these notes may lead to consequential damage.

This pictograph means: Electrostatically endangered parts!

If this pictograph is attached to a printed circuit board, it contains parts which may be damaged or destroyed by electrostatic discharges. If the boards need to be touched during setting, measurement, or for exchange, it must be assured that immediately before a discharge through contact with an earthed metallic surface (e.g. the housing) has taken place.

This pictograph means: Warning!

“Warning” marks activities or procedures which, if not carried out correctly, can affect the safety of persons or material.

2. Short description AUMA actuators have a modular design. Motor and gearing are mounted in

a common housing. The actuators are driven by an electric motor and controlled with the electronic controls AUMA MATIC Modbus. The electronic controls are included in the scope of delivery.

Actuator controls AUMA MATIC AM/ AMExB/ AMExC Modbus Operation instructions

3. Transport and storage

Transport to place of installation in sturdy packing.

Do not attach ropes or hooks to the handwheel for the purpose of lifting by hoist.

Store in well-ventilated, dry room.

Protect against floor dampness by storage on a shelf or on a wooden pallet.

Cover to protect against dust and dirt.

Apply suitable corrosion protection agent to bright surfaces.

4. General information about Modbus

For the exchange of information among automation systems and between automation systems and the connected decentral field devices, serial fieldbuses are mainly used today as the communication system. Thousands of applications have proved impressively that cost savings of up to 40 % in wiring, commissioning, and maintenance are achieved by using fieldbus technology. Just two wires are needed to transmit all relevant information for the field devices, such as input and output signals, parameters, and diagnostics data. While in the past the fieldbuses used were often manufacturer specific and incompatible with other bus systems, the systems employed today are almost exclusively open and standardized. This means that the user is independent of individual suppliers and can choose the best product at the most competitive price. Modbus is an open international fieldbus system which is also used successfully throughout the world. The application range includes automation in the areas of manufacturing, processing, and building. These operation instructions cannot provide a general introduction into Modbus. For this, please refer to the literature references in appendix C (page 57).

4.1 Basic characteristics Modbus defines the functional features of a serial fieldbus system with

which distributed digital automation devices can be interconnected. Modbus distinguishes between master and slave devices.

Master devices control the data traffic on the Bus. A master is allowed to send messages without an external request.

Slave devices such as AUMA Modbus actuators are peripheral devices. Typical slave devices are input/ output devices, valves, actuators, and measuring transmitters. They do not have bus access, i.e. they may only ,at the request of a master, transmit messages to that master.

Actuator controls AUMA MATIC AM/ AMExB/ AMExC

Operation instructions Modbus

4.2 Modbus Basic functions Modbus uses a master-slave technique in which only the master can initiate

a transaction. The slaves respond by supplying the requested data in a reply or by executing the action requested in the query.

The Modbus telegram from the master contains the slave address, a func

tion code defining the requested action, a data field, and a CRC field. The Modbus slaves’ response message contains fields confirming the requested action and possibly the requested data and also a CRC field. If an error occurs during reception of the telegram or the slave is unable to perform the requested action, the slave will generate an error telegram and send it as response to the master.

4.3 Transfer mode

RS-485 twisted pair cable or fibre optic cable.

AUMA actuators support baud rates up to 38.4 kBit/s

4.4 Bus access

Master-slave technique.

Mono-master system.

Master and slave devices: max. 127 devices at one bus (the AUMA MATIC supports slave addresses from 1 to 127), without repeater max. 32 devices.

4.5 Communication

Master-slave data exchange via query-response cycle (Polling procedure).

Modbus RTU protocol.

4.6 Protection functions

Parity check for each telegram byte

CRC check for each telegram

Watchdog for AUMA actuators with adjustable failure behaviour.

Query-response cycle monitoring with configurable timer interval at the master.

4.7 Modbus RTU mode Data format for a byte.

Coding system:

8 bit binary, hexadecimal 0-9, A-F

2 hexadecimal characters contained in each 8 bit field of the telegram

Bits per byte:

1 start bit

8 data bits; least significant bit sent first

1 bit for even/ odd parity, no bit for no parity

1 stop bit if parity is used, 2 stop bits if no parity is used.

Actuator controls AUMA MATIC AM/ AMExB/ AMExC Modbus Operation instructions

5. Technical data

Actuator controls AUMA MATIC AM/ AMExB/ AMExC

Operation instructions Modbus

Features and functions

Power supply Standard voltages:

Special voltages:

External supply of the electronics (option)

24 V DC + 20 % / – 15 %, Current consumption: Basic version approx. 200 mA, with options up to 500 mA

Switchgear Standard: Reversing contactors

(mechanically and electrically interlocked)

for motor power up to 1.5 kW

Options: Reversing contactors

(mechanically and electrically interlocked)

for motor power up to 7.5 kW Thyristor unit3)(recommended for modulating actuators)

for motor power up to 1.5 kW, 500 V AC, with internal fuses

for motor power up to 5.5 kW, 500 V AC, external fuses required Control and output signals via Modbus interface Modbus interface with additional

inputs (option)

Modbus interface with 4 free 24 V DC inputs and 2 free 0/4 – 20 mA inputs. Signal transmission vial fieldbus interface.

Local controls Standard: Selector switch LOCAL – OFF – REMOTE (lockable in all three positions)

Push buttons OPEN – STOP – CLOSE

3 indication light:

End position CLOSED (yellow), collective fault signal (red),

End position OPEN (green)

Option: Protection cover, lockable

Functions Standard Switch-off mode, adjustable

Limit or torque seating for end position CLOSED

Overload protection against excessive torque over the whole travel

Phase failure monitoring with automatic phase correction

Push-to-run operation or self-retaining in LOCAL

Positioner4):

Nominal position value via Modbus interface Adjustable behaviour on loss of signal Adjustable sensitivity (dead band) and pause time

Motor protection evaluation Standard: For AM: Monitoring of motor temperature in combination with thermoswitches

in actuator motor

For AMExB/ AMExC: Monitoring of the motor temperature with PTC tripping

device in combination with PTC thermistors in the actuator motor

Optionen: Additional thermal overload relay in the controls in combination with

thermoswitches within the actuator

PTC tripping device in combination with PTC thermistors in the actuator

motor Electrical connection Standard: For AM: AUMA plug/ socket connector with screw type connection

For AMExB/ AMExC: Ex-plug/ socket connector with terminal board

For further options and threads for cable entries, please refer to separate

technical data sheets

Special threads, other than standard mentioned above, possible

Control plug gold plated3)(sockets and pins)

Parking frame for wall mounting of the disconnected plug

Protection cover for plug compartment (when plug is removed) Overvoltage protection3)(option) Protection of the actuator and controls electronics against overvoltages on the fildbus

cables of up to 4 kV

Wiring diagram (basic version) MSP 1B1-00-7-F18E1 KMS TP102/001

1) AC current only with AM 01.1/ AM 02.1 and AMExC 01.1 in combination with actuator SGExC

2) The lifetime guaranteed by the manufacturer amounts to min. 2 million cycles. If a higher number of switching cycles is to be expected, thyristor units with

virtually unlimited lifetime should be used

3) only in combination with AM 01.1 and AM 02.1

4) Requires position transmitter (potentiometer or RWG) in actuator

Table 1: Modbus interface for actuator controls AM/ AMExB/ AMExC

3-phase AC

voltages/ frequencies

1-phase AC

voltages/ frequencies

Volt 220 230 240 380 400 415 440 460 480 500 Volt 110,115,120 220,230,240

Hz 50 50 50 50 50 50 60 60 60 50 Hz 50/60 50/60

3-phase AC

voltages/ frequencies

1-phase AC

voltages/ frequencies

Volt

525 575 660 690 208

50 50 50 50 60

Actuator controls AUMA MATIC AM/ AMExB/ AMExC Modbus Operation instructions

Settings/ programming of the Modbus interface

Setting of the Modbus interface The setting of baud rate, parity, and Modbus address is realised via the AUMA MATIC

Modbus assembly

Commands and signals of the Modbus interface

Oricess representation output (command signals)

OPEN, STOP CLOSE, nominal position value

Process representation input (feedback signals)

End position OPEN, CLOSED Actual position value

Selector switch in position LOCAL/ REMOTE Running indication

(directional) Torque switch OPEN, CLOSED Limit switch OPEN, CLOSED Manual operation by handwheel

or local controls

Process representation input (fault signals)

Motor protection tripped Torque switch tripped in mid-travel One phase missing

Behaviour on loss of communication

The behaviour of the actuator is programmable:

- operation to end position OPEN or CLOSED

- operation to any intermediate position

General Modbus data

Communication protocol Modbus RTU Network topology Linear (BUS) structure. Active bus termination on both sides.

Coupling and uncoupling of devices during operation without affecting other devices is possible.

Transmission medium Twisted, shielded copper cable according to EN 50 170 Modbus interface EIA-485 (RS485) Transmission speed/

cable length

Device types Modbus slave, e.g. devices with digital and/ or analogue inputs and outputs, such as

actuators, sensors

Number of devices 32 devices within each segment without repeater, with repeater expandable up to 127

Bus access Polling between master and slaves (query-response) Supported Modbus functions

(services)

01 Read Coil Status 02 Read Input Status 03 Read Holding Registers 04 Read Input Registers 05 Force Single Coil 15 (0FHex) Force Multiple Coils 06 Preset Single Register 16 (10Hex) Preset Multiple Registers 07 Read Exception Status 17 (11Hex) Report Slave ID 08 Diagnostics:

00 00 Loopback 00 10 (0AHex) Clear Counters and Diagnostic Register 00 11 (0BHex) Return Bus Message Count 00 12 (0CHex) Return Bus Communication Error Count 00 13 (0DHex) Return Bus Exception Error Count 00 14 (0EHex) Return Slave Message Count 00 15 (0FHex) Return Slave No Response Count

4) Requires position transmitter (potentiometer or RWG) in actuator

5) The highest Modbus address which can be set at the AUMA MATIC is 127

Baud rate (kbit/s) Max. cable length (segment

length) without repeater

Possible cable length with

repeater (total network cable

length) 300 600

1,200 2,400 4,800

9,600 19,200 38,400

1,200 m 1,200 m 1,200 m 1,200 m 1,200 m 1,200 m 1,200 m 1,200 m

approx. 10 km approx. 10 km approx. 10 km approx. 10 km approx. 10 km approx. 10 km approx. 10 km approx. 10 km

Actuator controls AUMA MATIC AM/ AMExB/ AMExC

Operation instructions Modbus

Service conditions

Enclosure protection according to EN 60 529

Standard: IP 67 (when mounted) Options: IP 68

DS3)Terminal compartment additionally sealed against interior (double sealed)

Corrosion protection Standard: KN Suitable for installation in industrial units, in water or power plants

with a low pollutant concentration

Optionen: KS Suitable for installation in occasionally or permanently aggressive

atmosphere with a moderate pollutant concentration (e.g. wastewater treatment plants, chemical industry)

KX Suitable for installation in extremely aggressive atmosphere with

high humidity and high pollutant concentration

KX-G Same as KX, however aluminium-free version (outer parts)

Finish coating Standard: Two-component iron-mica combination

Option: Special primer/special finish coat (customer’s choice)

Colour Standard: Silver-grey (DB 701, similar to RAL 9007)

Option: Other colours than standard colour are possible on request

Ambient temperature AM 01.1/ AM 02.1:

Standard: – 25 °C to + 70 °C Options: – 40 °C to + 70 °C, low temperature version

– 50 °C to + 70 °C, extreme low temperature version, incl. heating system – 60 °C to + 70 °C, extreme low temperature version, incl. heating system

AMExB Standard: – 20 °C to + 40 °C

AMExC: Standard: – 20 °C to + 40 °C Options: – 40 °C to + 40 °C, low temperature version

– 50 °C to + 40 °C, extreme low temperature version, incl. heating system

Vibration resistance

according to IEC 60 068-2-6

1 g, for 10 to 200 Hz (only for actuator with controls. Not valid in combination with gearboxes)

Weight approx. 7 kg (with AUMA plug/ socket connector)

approx. 12 kg (with Ex-plug/ socket connector with terminal board)

Accessories

Wall bracket

AUMA MATIC mounted separately from the actuator, including plug/ socket connector. Connecting cables on request.. Recommended for high ambient temperatures, difficult access, or in case of heavy vibrations during service.

Other information

EU Directives Electromagnetic Compatibility (EMC): (89/336/EEC)

Low Voltage Directive: (73/23/EEC) Machinery Directive: (98/37/EC)

Reference documents Product description “Actuator controls AUMA MATIC”

Dimension sheets “Multi-turn actuators/ part-turn actuators with integral controls AUMA MATIC”

3) Only in combination with AM 01.1 and AM 02.1

6) For version in enclosure protection IP 68, a higher corrosion protection KS or KX is strongly recommended

7) Resistant to vibrations during start-up or for failures of the plant. However, a fatigue strength may not be derived from this

8) Cable length between actuator and AUMA MATIC max. 100 m. Not suitable for version with potentiometer in the actuator. Instead of the potentiometer, an RWG has to be used in the actuator.

6. Design AUMA MATIC Modbus

The AUMA MATIC Modbus by AUMA represents the ideal controls for connecting multi-turn actuators of the SA range and part-turn actuators of the SG range to Modbus.

The integral controls AUMA MATIC Modbus consist of the following modules:

Modbus interface. The interface links the Modbus data with the internal electronics.

The logic board links the signals of the actuator with the local controls and the Modbus interface and controls the reversing contactors or the thyristors.

Local controls with selector switch, push buttons, and indication lights. The selector switch is used to select the control devices for the local control LOCAL – 0 – REMOTE for remote control. The push buttons (OPEN) – Stop – (CLOSE) are used for the electric operation of the actuator on site.

Plug/ socket connectors for easy mounting of the AUMA MATIC Modbus on the actuators.

Signal and control board with primary fuses, relays for conversion of the local control commands into electrical signals, and indication lights as an option.

Switchgear: Reversing contactors or thyristors for motor controls.

Modbus connection board with terminals for the Modbus cable and the termination resistor for bus termination.

Actuators which have already been installed can be retrofitted for Modbus by exchanging the controls AUMA MATIC for controls AUMA MATIC Modbus.

Actuator controls AUMA MATIC AM/ AMExB/ AMExC Modbus Operation instructions

Figure A: AUMA MATIC Modbus

Switchgear

Power supply unit

Logic board

Modbus interface

Plug/ socket connector

to actuator

Local controls

Selector switch

Signal and control board

Modbus

connection board

Electrical connection

with AUMA plug/ socket connector

7. Electrical connection

Work on the electrical system or equipment must only be carried out by a skilled electrician himself or by specially instructed personnel under the control and supervision of such an electrician and in accordance with the applicable electrical engineering rules.

Installation regulations for Modbus must be observed for the wiring. (For literature references, please refer to appendix C)

Make sure to respect electromagnetic compatibility (EMC) when installing cables: Signal and bus cables are susceptible to interference. Electric power cables are interference sources.

Lay cables being susceptible to inferference or sources of interference at the highest possible distance from each other.

The interference immunity of signal and bus cables increases if the cables are laid close to the ground potential.

Avoid long cables, if possible, or make sure that they are laid in locations with low susceptibility to interference.

Avoid long parallel paths with cables being either interference sources or susceptible to interference.

7.1 Power supply (standard) For explosion-proof version (type designation: AMExB/ AMExC), please

refer to page 15 or page 17.

Check whether type of current, supply voltage, and frequency comply with motor data (refer to name plate at motor).

Loosen bolts (50.01) (figure B-1) and remove connection housing.

Loosen screws (51.01) and remove socket carrier (51.0) from plug cover (50.0).

Insert cable glands suitable for connecting cables. (The enclosure protection stated on the name plate is only ensured if suitable cable glands are used).

Seal cable entries which are not used with suitable plugs.

Connect cables according to order-related wiring diagram. The wiring diagram applicable to the actuator is attached to the handwheel in a weather-proof bag, together with the operation instructions. In case the wiring diagram is not available, it can be obtained from AUMA (state commission no., refer to name plate) or downloaded directly from the Internet (www.auma.com).

A special parking frame (figure B-2) for protection against touching the bare contacts and against environmental influences, in case the electrical connection has been removed, is available.

Actuator controls AUMA MATIC AM/ AMExB/ AMExC

Operation instructions Modbus

Figure B-1: Connection

50.0

50.01

51.0

51.01

Parking frame

Technical data Motor power connections1)Protective earth Control terminals

No. of contacts max. 6 (3 are used) 1 (leading contact) 50 pins / sockets Marking U1, V1, W1, U2, V2, W2 1 to 50 Connecting voltage max. 750 V – 250 V Nominal current max. 25 A –

16 A Type of customer connection Screws Screw for ring lug Screws Cross section max. 6 mm

6 mm

2.5 mm

Material: Pin/ socket carrier Polyamide

Polyamide Polyamide

Contacts Brass (Ms)

Brass (Ms)

Brass, tin plated or gold plated (option)

1)Suitable for copper wires. For aluminium wires, please contact AUMA

Table 2: Technical data AUMA plug/ socket connector for bus connection

Figure B-2: Parking frame (accessory)

7.2 Bus connection (standard) For explosion-proof version (type designation: AMExB/ AMExC), please

refer to page 15 or page 17. For version with FO (fibre optics), refer to separate operation instructions “AUMA MATIC AM 01.1/ AM 02.1 FO connection”.

Connect bus cable. Refer to figures C-1 and C-4.

The termination resistors for channel 1 and channel 2 are switched in via switches (S1) and (S2). Both switches are supplied in position ‘OFF’.

Only switch on the termination resistors (position ‘ON’) if the actuator is the final device in the Modbus segment.

Actuator controls AUMA MATIC AM/ AMExB/ AMExC Modbus Operation instructions

ON Bus termination channel 1 ON OFF Bus termination channel 1 OFF

ON Bus termination channel 2 ON (option) OFF Bus termination channel 2 OFF (option)

Table 3: Switch positions of S1 and S2

Figure C-1: Connection board (standard)

Bus termination

channel 1

Connection

channel 1

Screening

S2 Bus termination channel 2 (ption)

Connection channel 2 (redundant)

Screening

P/B

N/A

P/B

GND

Figure C-2: Connection (standard)

from previous / to next

Modbus device

channel 1

7.3 Fitting the cover After connection:

Insert the socket carrier (51.0) into the plug cover (50.0) and fasten it with screws (51.01).

Clean sealing faces at the plug cover and the housing.

Check whether O-ring is in good condition.

Apply a thin film of non-acidic grease (e.g. Vaseline) to the sealing faces.

Replace plug cover (50.0) and fasten bolts (50.01) evenly crosswise.

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

Actuator controls AUMA MATIC AM/ AMExB/ AMExC

Operation instructions Modbus

Figure C-3: Connection board (for overvoltage protection)

Bus termination

channel 1

S2 Bus termination channel 2

1234

Figure C-4: Connection for overvoltage protection

Modbus

cable

AUMA

labelling at the

connection

A N/A B P/B

Table 4: Assignment of Modbus cable

from previous / to next

Modbus device

channel 1

7.4 Remote position transmitter For the connection of remote position transmitters (potentiometer, RWG)

screened cables must be used.

7.5 AUMA MATIC on wall bracket The AUMA MATIC can also be mounted separately from the actuator on a

wall bracket.

For the connection of actuator and AUMA MATIC on wall bracket, use suitable flexible and screened connecting cables. (Preconfectioned cables can be obtained from AUMA on request)

Permissible cable distance between actuator and AUMA MATIC amounts to a max. of 100 m.

Versions with potentiometer in the actuator are not suitable. Instead of the potentiometer, an RWG has to be used in the actuator.

Connect the wires in correct phase sequence. Check direction of rotation before switching on.

The plug connection on the wall bracket is made as crimp version. Use a suitable four indent crimp tool for crimping.

Cross sections for flexible wires: Control cables: max. 0.75 to 1.5 mm² Power supply: max. 2.5 to 4 mm²

The connector at the actuator is equipped with screw type connections. Wire end sleeves have to be used.

7.6 Test run Perform test run. Please refer to the operation instructions pertaining to the

actuator (multi-turn actuator SA(R) ... / part-turn actuator SG ...).

Check limit and torque switching:

Check limit and torque switching, electronic position transmitter RWG or potentiometer (option) and re-set where appropriate. The settings are described in the operation instructions pertaining to the actuator (multi-turn actuator SA(R) ... part-turn actuator SG ... ).

For actuators with feedback signal (RWG, potentiometer), a reference operation has to be performed after having changed the setting.

Perform reference operation:

Operate actuator electrically (via the push buttons OPEN and CLOSE of the local controls) once to the end position OPEN and once to the end position CLOSED.

If no reference operation is performed after changing the limit switching, the feedback signal via the bus is not correct. The bus signals the missing reference operation as warning (see page 28).

Actuator controls AUMA MATIC AM/ AMExB/ AMExC Modbus Operation instructions

Figure C-5: AM on wall bracket

Connecting cable to actuator

7.7 Mains and bus connection for Ex-version with plug/ socket connector / terminal board (KP)

When working in potentially explosive areas, observe the European Standards EN 60079-14 “Electrical installations in hazardous areas” and EN 60079-17 “Inspection and maintenance of electrical installations in hazardous areas”.

For the Ex-plug/ socket connector (figure D-1), the electrical mains connection is made after removing the plug cover (50.0) at the EEx e terminals of the terminal board (51.0). The flameproof compartment (type of protection EEx d) remains hereby closed.

Check whether type of current, supply voltage, and frequency correspond to motor data (refer to name plate at motor).

Loosen bolts (50.01) (figure D-1) and remove plug cover.

Insert cable glands with “EEx e” approval and of size suitable for connecting cables. For the recommended cable glands refer to appendix D, page 57. (The enclosure protection stated on the name plate is only ensured if suitable cable glands are used).

Seal cable entries which are not used with suitable plugs.

No more than max. 2 wires with the same cross section may be connected to one terminal.

Remove cable sheathing in a length of 120 – 140 mm. Strip wires: Controls max. 8 mm, motor max. 12 mm. For stranded wires use end-sleeves according to DIN 46228.

Connect bus cable. Refer to figure (D-3). The termination resistor for channel 1 is connected through linking the terminals 1 – 4 and 3 – 2 (standard).

Only connect the termination resistor if the actuator is the final device in the Modbus segment.

Connect screen largely to the cable glands. For the recommended cable glands refer to appendix D, page 57.

If the actuator must be taken from the valve, e.g. for service purposes, it can be separated from the mains without having to remove the wiring (figure D-2). For this purpose, the screws (51.02) are removed and the plug/ socket connector is pulled off. Plug cover (50.0) and terminal board (51.0) remain together.

Flameproof enclosure! Before opening, ensure that no explosive gas and no voltage is present.

A special parking frame (figure D-2) for protection against touching the bare contacts and against environmental influences is available.

Actuator controls AUMA MATIC AM/ AMExB/ AMExC

Operation instructions Modbus

Figure D-1: Connection

50.0

50.01

51.0

Figure D-2: Disconnection from the mains

50.0

51.0

51.02

Actuator controls AUMA MATIC AM/ AMExB/ AMExC Modbus Operation instructions

Figure D-3: Bus connection for channel 1 (standard)

Another bus device follows the actuator

Actuator is final bus device

from previous Modbus device channel 1

to next Modbus device channel 1

Technical data Motor power connections

Protective earth Control terminals

No. of contacts max. 3 1 (leading contact) 38 pins/ sockets Marking U1, V1, W1 1 to 24, 31 to 50 Connecting voltage max. 550 V – 250 V Nominal current max. 25 A – 10 A Type of customer connection Screws Screws Screws Cross section max. 6 mm

6 mm

1.5 mm

Material: Pin/ socket carrier Araldite/ Polyamide Araldite/ Polyamide Araldite/ Polyamide Contacts Brass (Ms) Brass (Ms) Brass (Ms) tin-plated

1)Suitable for copper wires. For aluminium wires, please contact AUMA

Table 5: Technical data Ex plug/ socket connector with terminal board for explosion-proof actuators

7.8 Mains and bus connection for Ex-version with plug-in terminal connection (KES)

The bus connection is realised via terminals (figure E-1) The terminal compartment is designed for explosion protection “EEx e” (increased safety). The controls AUMA MATIC (type of protection EEx d) remain closed.

Loosen bolts (1) (figure E-1) and remove terminal cover.

Seal cable entries which are not used with suitable plugs.

Cross sections for connection:

Control cables: max. 2.5 mm

Motor connection: max. 10 mm2, Suitable bus cables, see page 19.

Connect bus cable to channel 1 according to configuration of the terminals (figure E-2). The termination resistor for channel 1 is connected through linking the terminals 1 – 2 and 3 – 4.

Only connect the termination resistors if the actuator is the final device in the Modbus segment.

Actuator controls AUMA MATIC AM/ AMExB/ AMExC

Operation instructions Modbus

Figure E-1: Plug-in terminal

connection

Terminal cover

Terminals

Terminal board

Figure E-2: Terminal configuration for Ex connection (KES)

Another bus device follows the actuator

Previous Next Modbus device Modbus device

Actuator is last bus device

Previous Modbus device

7.9 Redundant bus connection AUMA Modbus devices can be connected with a second (redundant)

Modbus cable. If the bus on channel 1 fails, e. g. through cable break, the slave automatically switches to channel 2 after a waiting time. Thus, the change-over is realised with a time delay (see parameter 5 “Time for channel changing in 0.1s”, page 35). Additionally, the communication cannot be carried out on both channels simultaneously. If the redundancy is activated (see parameter 4 “Redundancy”, page 34), the AUMA MATIC transmits its data using both channels but receives the data only using the active channel.

This cable redundancy may only be applied after previous integration test using the desired process control system!

For versions with AUMA plug/ socket connector (subclause 7.2):

Connect redundant bus cable to channel 2 in the same way as channel 1 (figure C-2).

For Ex-version with plug/ socket connector / terminal board (KP)

(subclause 7.7):

Connect cable B to terminal 6, cable A to terminal 7. The termination resistor for channel 2 is connected through linking the terminals 5 – 6 and 7 – 8.

For Ex-version with plug-in terminal connection (KES)

(subclause 7.8):

Connect cable B to terminal 6, cable A to terminal 7 (figure E-2). The termination resistor for channel 2 is connected through linking the terminals 5 – 6 and 7 – 8.

The setting of the redundant bus connection is realised via the parameters 4 and 5 (refert to pages 34, 35).

Actuator controls AUMA MATIC AM/ AMExB/ AMExC Modbus Operation instructions

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