• 3 GENERAL Vacon NX frequency converters can be connected to the Profibus DP using a fieldbus board. The con- verter can then be controlled, monitored and programmed from the Host system. The Profibus fieldbus board shall be installed in slot E on the control board of the frequency con- verter.
Siemens SINEC L2 LAN cable for Profibus 6XV1 830-0AH10 NOTE! 1. Minimum distance between power and bus cables is 30cm. 2. Minimum cable length between two stations of 1m is recommended. 24-hour support +358 (0)40 8371 150 • Email: vacon@vacon.com...
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6 • vacon technical data Figure 2-1. Cabling and bus termination Tel.+358 (0)201 2121 • Fax +358 (0)201 212 205...
They do not have bus access rights and they can only acknowl- edge received messages or send messages to the master when requested to do so. Slaves are also called 'passive stations'. 24-hour support +358 (0)40 8371 150 • Email: vacon@vacon.com...
User data are not evaluated by the Profibus DP transmission protocol. The meaning is specified in the profiles. In addition, the profiles specify how Profibus DP is to be used in the application area. The following Profibus DP profile is used in VACON NX Profibus Fieldbus board. 3.2.1 Variable Speed Drive Profile (3.071)
• 9 PROFIBUS FIELDBUS BOARD LAYOUT AND CONNECTIONS Vacon Profibus Fieldbus Board is connected to the fieldbus through either a 5-pin pluggable bus con- nector (board OPT-C3) or a 9-pin female sub-D-connector (board OPT-C5). The communication with the control board takes place through the standard Vacon Interface Board Connector.
10 • vacon fieldbus board layout and connections 4.1.1 Grounding of bus cable shield in OPT-C3 The bus cable shield can be grounded in three different ways: directly to the frequency converter frame to the frame of the frequency converter through an RC filter clamping the cable to the converter frame (recommended) Note: Normally, the option board has already been installed in slot E of the control board.
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Leave no more than 1 cm of the red and green data cable outside the terminal block and strip the data cables at about 0.5 cm to fit in the terminals. See pictures below. Note: Do this for both bus cabels. Figure 4-4. Figure 4-5. 24-hour support +358 (0)40 8371 150 • Email: vacon@vacon.com...
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12 • vacon fieldbus board layout and connections We recommend you to use an Abico connector to fit the grounding cable into the grounding terminal (#1). Insert the red and green data cables of both Profibus cables into terminals #3 (red) and #4 (green).
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Profibus cable Figure 4-8. Grounding with RC filter Set jumper X1 in OFF position Figure 4-9. Jumper X1 positions Carry out the grounding in the same way as advised in Chapter 4.1.1.1. 24-hour support +358 (0)40 8371 150 • Email: vacon@vacon.com...
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14 • vacon fieldbus board layout and connections 4.1.1.3 Grounding by clamping the cable to the converter frame This manner of grounding is the most effective and especially recommended when the distances between the devices are relatively short (see 4.1.1.2).
E.g. following connectors can be used (180° cable outlet): Phoenix SUBCON-PLUS-PROFIB/AX/SC 27 44 38 0 Siemens Profibus connector 6GK1 500-0EA02 4.2.1 Grounding of a D-connector: Figure 4-13. Remove the screw of the grounding clamp 24-hour support +358 (0)40 8371 150 • Email: vacon@vacon.com...
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16 • vacon fieldbus board layout and connections 15 mm Figure 4-14. Strip the cable according to the picture Max. length of the D- connector 60 mm Push the clamp while tigh- tening the screw Figure 4-15. Attach the D-connector and tighten the grounding plate...
• 17 Bus terminal resistors If Vacon is the last device of the Profibus line the bus termination must be set. Use jumper X6 (ON po- Figure 4-16 sition) or external termination resistors (e.g. in DSUB-9 connector). See NOTE! Termination works properly when the drive has power (active termination) connected.
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18 • vacon fieldbus board layout and connections Profibus status LED (PS) LED is: Meaning: Profibus communicates normally. • Data exchange between Master and Slave Profibus communication is broken or not started. • Bus cable broken or incorrectly connected •...
Open the cover of the control unit. Install Profibus DP option board in slot E on the control board of the frequency con- verter. Make sure that the grounding plate (see below) fits tightly in the clamp. 24-hour support +358 (0)40 8371 150 • Email: vacon@vacon.com...
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20 • vacon installation of vacon nx profibus board Make a sufficiently wide opening for your cable by cutting the grid as wide as nec- essary. Close the cover of the control unit and the cable cover. Tel.+358 (0)201 2121 • Fax +358 (0)201 212 205...
Fieldbus board parameters The Vacon Profibus board is commissioned with the control keypad by giving values to appropriate parameters in menu M7 (for locating the expander board menu see Vacon NX User's Manual, Chapter Expander board menu (M7) Expander board menu...
• 23 Start-up test Frequency converter application Choose Fieldbus (Bus/Comm) as the active control place (see Vacon NX User's Manual, Chapter 7.3.3). Master software 1. Set Control Word value to 0hex. 2. Set Control Word value to 47Fhex.
Master. The contents of the input/output data is defined in the device profile. The device profile for frequency converters is PROFIDRIVE. The Vacon NX frequency converter can be controlled by Profibus DP Master using the PPO-types de- fined in Profidrive (see Chapter 7.3). When fieldbus has been selected as the frequency converter’s active control place, the frequency converter’s operation can be controlled from the Profibus DP Mas-...
PPO 2 PPO 3 PPO 4 PPO 5 Descriptions: Byte Parameter type and number Parameter subindex VALUE Parameter value Control Word Status Word Reference Value 1 Actual Value 1 Process Data 24-hour support +358 (0)40 8371 150 • Email: vacon@vacon.com...
26 • vacon profibus-vacon nx interface Process data The process data field is used to control the device (e.g. Run, Stop , Reference, Fault Reset) and in reading quick actual values (e.g. Output frequency, Output current, Fault code). The size of the field varies between 2…20 bytes.
As shown above, there are several stop modes. It depends on the operating situation, which mode is selected. Note! In Vacon NX frequency converter STOP1 and STOP3 are identical. Also STOP2 and RUN DIS- ABLE are identical. Commands STOP1 and STOP3 can be used only with either one of the motor control modes (P2.6.1)
28 • vacon profibus-vacon nx interface 7.4.2 Status word Status word Information about the status of the device and messages is indicated in the The Status word is composed of 16 bits that have the following meanings: Description Value = 0...
30 • vacon profibus-vacon nx interface 7.4.4 Reference 1 This is the reference 1 to the frequency converter. Used normally as Speed reference. The allowed scaling is –10000...10000. In the application, the value is scaled in percentage of the fre- quency area between set minimum and maximum frequency.
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Pr o f ib u s DP m a ster VA CO N N X 1 Output Frequency 2 Motor Speed Selector Parameter or fixed variable N XB1 Figure 7-4. Control of Process data (see APPENDIX) 24-hour support +358 (0)40 8371 150 • Email: vacon@vacon.com...
Parameter data The Vacon variables and fault codes as well as the parameters can be read and written using PPO types 1, 2 and 5. The reading and writing can be done via the parameter field of the profibus message frame.
Illegal Parameter Parameter is read only ( e.g. actual values) Parameter value is out of limits Request temporarily rejected (e.g. can be changed only for STOP state) Other fault Unknown request type 24-hour support +358 (0)40 8371 150 • Email: vacon@vacon.com...
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34 • vacon profibus-vacon nx interface Index VALUE Not in use Data Value VALUE Data word 1 (HIGH) Data word 2 (LOW) byte 0 byte 1 byte 2 byte3 In writing mode the data to be written is placed in the field “Data word 2”.
0000 - frequency converter status (see chapter status word and state machine) 0000 hex Current speed 0,00% (= 0,00 Hz if parameter min. frequency 0 Hz and max. frequency 50 Hz) PPO1 frame (Parameter Field as Bold text): 24-hour support +358 (0)40 8371 150 • Email: vacon@vacon.com...
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36 • vacon profibus-vacon nx interface Example 2 , (PPO1 mode): Write to parameter number 700 (par. 2.7.1) value 2. Keep Run mode on and Send speed reference 75,00%. Command Master - Slave: 22BC hex 2 - Write parameter value...
P2.7.22 fault 2=Fault,stop acc. to 2.4.7 3=Fault,stop by coasting 0=No response Response to slot 1=Warning P2.7.23 fault 2=Fault,stop acc. to 2.4.7 3=Fault,stop by coasting Table 8-2. Frequency converter responses to faults 24-hour support +358 (0)40 8371 150 • Email: vacon@vacon.com...
ControlWord, Reference and Process Data are used with All-in One applications as follows: Basic, Standard, Local/Remote, Multi-Step applications Data Value Unit Scale Reference Speed Reference 0.01% ControlWord Start/Stop Com- mand Fault reset Com- mand PD1 – PD8 Not used 24-hour support +358 (0)40 8371 150 • Email: vacon@vacon.com...
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40 • vacon appendix Multipurpose control application Data Value Unit Scale Reference Speed Reference 0.01% ControlWord Start/Stop Command Fault reset Command Process Data IN1 Torque Reference 0.1% Process Data IN2 Free Analogue INPUT 0.01% Process Data IN3 Adjust Input 0.01% PD3 –...
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