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Drehmo i-matic, Installation And Operating Manual

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Supplement operating manual for DREHMO i-Matic actuators with integrated  

MODBUS fieldbus interface  

 

 
Wenden, 21.03.12 

 

Page 1 of 18 

Prepared by: Ste 

 
DREHMO

   i - Matic 

Electrical actuator with integral controls  

 
Supplementary operating manual for actuators with MODBUS interface 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 

 

 

 

 

 

 

 

 

part number: 166 671 

Installation Manual 

 

 

 

 

 

 

Version 03 

Operating Manual 

 

 

 

 

 

 

Date: Oct. 18

th

, 2006 

 
 
INFORMATION 

 
This installation manual should only be used in conjunction with the operating manual for drives! 
 
This manual must be kept for future use.

 

 

Compact plug 

Electronic housing 

Local controls 

Motor 

Gearbox 

Drive output 

Handwheel 

Modbus redundant interface electronic 
built in the electronic housing 

MODBUS 

Summary of Contents for i-matic

Page 1: ...for actuators with MODBUS interface part number 166 671 Installation Manual Version 03 Operating Manual Date Oct 18 th 2006 INFORMATION This installation manual should only be used in conjunction with...

Page 2: ...2 4 2 Number of channels bus profile 10 2 4 3 Redundancy modes line redundant vs master redundant 10 2 4 4 Function Fail Safe Timeout setting 10 2 4 5 Fault messages 11 2 5 Electrical connection 12 2...

Page 3: ...ate 2 wire RS485 modbus channels The baud rate and parity settings are common for both channels Each of the channels can be assigned an individual slave address in the range of 1 to 247 different addr...

Page 4: ...rce Single Coil write single bit of master output data command FC 06 Preset Single Register write single data of master output data command FC 15 Force Multiple Coils write multiple bit of master outp...

Page 5: ...travel message only acc to position 11 28 Drive in end of travel position CLOSED End of travel message only acc to position 12 29 Drive in end of travel position OPEN Drehmo End of travel message onl...

Page 6: ...xceeded 7 56 Actuator is served Logged in user is specialist or manufacturer for service reasons 8 57 Regulating time too long Regulating time longer than max running time 9 58 Max valve stroke exceed...

Page 7: ...word feedback Request C8 04 02 00 00 08 E1 ED Checksum number of data high lowbyte database address decimal 512 function code 04 slave address 200 in example Response C8 04 10 03 C4 00 0F 42 84 50 A0...

Page 8: ...V01 05 0048 9 15 26 32 unused unused 0x203 0x220 33 512 In order to access the command signals the function codes FC 05 Force Single Coil or FC 06 Preset Single Register are recommended to be used The...

Page 9: ...00 00 00 00 00 00 00 00 00 00 00 00 00 A6 6D Checksum discrete coil command check information 0 lowbyte highbyte order number of databytes function code 01 read coil status command check slave address...

Page 10: ...possible to set up two different redundancy modes The different modes have a different reply behaviour For line redundant mode it is possible to block the reply of the inactive channel by setting the...

Page 11: ...25 5 seconds In case of fail safe the actuator action can be parameterised as explained in the i Matic instruction manual 2 4 5 Fault messages Fault messages can be reset depending on the active faul...

Page 12: ...en below 1 Optional external 24 VDC supply of i Matic unit input with tolerance 10 5 and less than 500mA load Optional auxiliary 24 VDC supply output for external use allows 60mA load Mounting plate f...

Page 13: ...e to be wired to the output terminals labeled OUT The connection of the shielding for incoming or outgoing cables has to be done in the same manner Mounting plate with electric assembly front side vie...

Page 14: ...S3 S4 on DiM 19 connection board channel 1 without termination bus connection forward to next device channel 2 termination activated last device on bus segment 2 5 1 3 Grounding of the cables shields...

Page 15: ...The core of the optical fibres might be of diameter 50 m or 62 5 m To connect the fibre optic cables open the cover of the extended compact plug Using the maximum of four cable glands M20x1 5 the cab...

Page 16: ...available double terminals A1 B1 A2 B2 which are electrically connected A bridge between incoming and outgoing bus signals has to be made to achieve the required T piece The bus terminator always has...

Page 17: ...ant to keep the size of the breakout small enough to be able to push it through a cable gland of the size M20 The standard connector is of type F SMA The following pictures show the inside of the wiri...

Page 18: ...ground are galvanically isolated from the electronic potential by optocouplers The nominal current of the discrete inputs is 12 mA for an input voltage of 24 V DC The following picture shows the stru...

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