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VACON CX

Modbus user’s manual

Page

________________________________________________________________________________________

________________________________________________________________________________________
Vacon Oy

Phone +358-201-2121

Fax: +358-201-212 205

7.4

CONNECTIONS (small Modbus Board for Vacon CXS, Vacon CX211OPT)

7.4.1

Board layout

Terminals:

Screw terminal to Modbus CXS

Diagnostic LED:

Supply Voltage, Red.
H3 led is active if the Fieldbus board has supply voltage.

7.4.2

Modbus connections

Screw Connector connector X5: (Terminal resistors not included in the package)

Signal

Connector X5

Description

Shield

X5-1

Cable shield

X5-2

RxD/TxD-P

X5-3

Receive/Transmission data positive (B)

RxD/TxD-N

X5-4

Receive/Transmission data negative (A)

DGND

X5-5

Data Ground

Table 7-2. Screw connector terminals

Note!

If Vacon is the last device then the bus termination must be set. Install the resistors to the screw terminal

(see table 5-1)

1 2 3 4 5

Figure 7-1. Modbus board

120

Ω

Termination for
the last node

Содержание CXS Series

Страница 1: ...Modbus Fieldbus Option Board USER S MANUAL Subject to changes without notice VACON CX CXL CXS FREQUENCY CONVERTERS F O R S M O O T H C O N T R O L ...

Страница 2: ...ctions 11 6 COMMISSIONING 12 7 MODBUS VACON CX INTERFACE 13 7 1 Modbus function codes 13 7 1 1 Function code 1 Read Control Bits 13 7 1 2 Function code 2 Read Status Bits 13 7 1 3 Function code 3 Read Parameters 13 7 1 4 Function code 4 Read Variables 14 7 1 5 Function code 5 Write Control Bits 14 7 1 6 Function code 6 Write Parameter 14 7 1 7 Function code 8 Diagnostic 14 7 2 VACON control interf...

Страница 3: ...existing place of the option board inside the frequency converter The control connections are isolated from the mains potential and I O ground is connected to the frame of the device via a 1 MΩ resistor and 4 7 nF capacitor The control I O ground can be connected also directly to the frame by changing the position of the jumper X9 GND ON OFF to ON position Digital inputs and digital outputs are al...

Страница 4: ...gital input 4 pcs 24 V 0 10 V 1 18 V Ri 5 kΩ connections Digital output 4 pcs Open collector output 50 mA 48 V Termistor input 1 pcs Rtrip 4 7 kΩ Encoder input 3 pcs 24 V 0 10 V 1 18 V Ri 3 3 kΩ 5 V 0 2 V 1 3 V Ri 330 Ω Aux voltage 24 V 20 max 50 mA Safety Fulfills EN50178 standard Table 2 1 Specifications Communication mode RTU Function codes 1 2 3 4 5 6 8 Broadcast codes 5 6 Read Digital Output ...

Страница 5: ...ine Each device is assigned an address to distinguish it from all other connected devices The MODBUS protocol uses the master slave technique in which only one device the master can initiate a transaction The other devices the slaves respond by supplying the request data to the master or by taking the action requested in the query The master can address individual slaves or initiate a broadcast me...

Страница 6: ...CRC Check End T1 T2 T3 T4 8 bits 8 bits n 8bits 16 bits T1 T2 T3 T4 The individual slave devices are assigned addresses in the range of 1 247 Address 0 is used for the broadcast address which all slave devices recognize 3 3 Modbus functions The Function Code field tells the addressed slave what function to perform The following table lists those functions supported by the Fieldbus board Code Name ...

Страница 7: ...e slave 02 ILLEGAL DATA ADDRESS The received data address is not an allowable address for the slave 03 ILLEGAL DATA VALUE The received data value is not an allowable value for the slave 04 SLAVE DEVICE ERROR An unrecoverable error occurred while the slave was attempting to perform the requested action 06 SLAVE DEVICE BUSY The message was received without error but the slave was engaged in processi...

Страница 8: ... terminal X5 C Bend the data cable to an S curve as far as possible from the power board transformer 4 before you place the plastic board onto the control board D Remove the protection foil of the plastic board and install the plastic board onto the control board Check the right position of the plastic board 5 E Place the Fieldbus board onto the plastic board by the larger holes and push it downwa...

Страница 9: ...___________________________________________________________ ________________________________________________________________________________________ Vacon Oy Phone 358 201 2121 Fax 358 201 212 205 Figure 4 1 Fieldbus board installed on the control board Fieldbus board ...

Страница 10: ...r input X7 Encoder terminal X5 Modbus terminal X12 Line terminator 120Ω ON OFF X15 Connector for cable Shield Diagnostic LED UL Supply Voltage Green UL led is active if the Fieldbus board has supply voltage 5 2 Modbus connections D SUB connector Signal Connector D SUB 9 pin Board Connector X5 terminal Description Data A 2 X5 4 Data Out Data B 3 X5 5 Data In GND 7 X5 6 Common Shield X15 Cable shiel...

Страница 11: ... GND or 24 V 306 24 V Control voltage output Voltage for switches etc max 0 1 A 307 COME Common for DIE3 DIE4 Connect to GND or 24 V 308 GND I O ground Ground for reference and controls 309 DID5A Pulse input A 310 DID5A differential input 311 DID6B Pulse input B 90 degrees phase shift compared 312 DID6B differential input to pulse input A 313 DID7Z Pulse input Z one pulse per one revolution 314 DI...

Страница 12: ...cation is selected Parameter P0 1 0 Start up test DRIVE APPLICATION 1 Check that the control panel is not the active control source See User s manual CX CXL CXS frequency converter Chapter 7 2 Set parameter Fieldbus control select to value 1 On MASTER SOFTWARE Slave address e g is 1 1 Write to address 00000 value FF00hex RUN message 01 05 00 00 FF 00 8C 3A 2 Read Run State address 10002 message 01...

Страница 13: ...umber of points HI Number of points LO CRC16 1 byte 1 byte 1 byte 1 byte 1 byte 1 byte 2 bytes Response Slave address Function code Byte count Data bits CRC16 1 byte 1 byte 1 byte 1 byte 2 bytes 7 1 2 Function code 2 Read Status Bits This function is used to read status bits The transaction frames Query Slave address Function code Starting Address HI Starting Address LO Number of points HI Number ...

Страница 14: ...n code Output Address HI Output Address LO Force Data HI Force Data LO CRC16 1 byte 1 byte 1 byte 1 byte 1 byte 1 byte 2 bytes Response Slave address Function code Output Address HI Output Address LO Force Data HI Force Data LO CRC16 1 byte 1 byte 1 byte 1 byte 1 byte 1 byte 2 bytes 7 1 6 Function code 6 Write Parameter This function is used to write VACON CX parameters The transaction frames Quer...

Страница 15: ...e only one that brings a slave out of Listen Only Mode 04 Set Listen Only Mode Forces the slave into Listen Only Mode LOM In this mode the slave doesn t process messages The only function that will be processed after this mode is entered will be the Reinitialization 01 0A Clear counters Clears all counters 0B Bus message count The quantity of correct messages seen on the line without CRC error or ...

Страница 16: ... 00 02 FAULT RESET T STATUS E Function code 2 Read R Address 00 00 CONTROL SOURCE 00 01 READY STATE 00 02 RUN STATE 00 03 DIRECTION STATE 00 04 FAULT STATE Example 1 Read VACON CX run state Response Run state 0 stop or 1 run Query 01 02 00 02 00 01 CRC16 Slave addr Function Address HI Address LO Number of points HI Number of points LO 2 bytes Response 01 02 01 01 CRC16 Slave addr Function Byte cou...

Страница 17: ...bus address Range Step Default 40000 Par 1 1 Par 1 2 0 01 Hz 0 00 50 00 Hz The reference value should be given without decimals e g ref 10 Hz value 1000 Example 1 Set frequency reference value 10 00 Hz to Vacon CX Response is an echo of the query Query 01 06 00 00 03 E8 CRC16 Slave addr Function Address HI Address LO Data HI Data LO 2 bytes Response 01 06 00 00 03 E8 CRC16 Slave addr Function Addr...

Страница 18: ...n18 Control program Version number of the control software n19 Unit nominal power 0 1 kW Shows the power size of the unit n20 Motor temperature rise 1 100 temperature of motor has risen to nominal value 1 DD full days dd decimal part of a day 2 HH full hours hh decimal part of an hour Table 7 1 Monitored Items Example 1 Read value of Vacon variable 3 Response Value of monitored item 156 15 6 A Que...

Страница 19: ...99 49800 49899 Group 98 1 99 49900 49999 Group 0 1 99 Numbering of the parameter as well as parameter ranges and steps can be found in the application manual in question The parameter value should be given without decimals Example 1 Write value 25 to Vacon parameter 3 2 Response is an echo of the query Query 01 06 01 2D 00 19 CRC16 Slave addr Function Address HI Address LO Data HI Data LO 2 bytes ...

Страница 20: ...upply Voltage Red H3 led is active if the Fieldbus board has supply voltage 7 4 2 Modbus connections Screw Connector connector X5 Terminal resistors not included in the package Signal Connector X5 Description Shield X5 1 Cable shield X5 2 RxD TxD P X5 3 Receive Transmission data positive B RxD TxD N X5 4 Receive Transmission data negative A DGND X5 5 Data Ground Table 7 2 Screw connector terminals...

Страница 21: ...from the control board and replace it with a stand sleeve 4 C Connect the power cable 5 to terminal X5 of the control board The power cable can also be connected to terminal X6 if terminal X5 is already reserved by the power cable from the power board D Remove the protective foil of the plastic board and place the plastic board above the control board Be sure to place the plastic board correctly s...

Страница 22: ...__________________________________________________ Vacon Oy Phone 358 201 2121 Fax 358 201 212 205 G Connect the power cable 5 to terminal X9 on the option board H Attach the control panel base with four screws I Check the connections Remove all foreign objects from inside the frequency drive Put the control panel and the frequency drive cover back to their places ...

Страница 23: ...VACON OY PL 25 Runsorintie 7 65381 VAASA Puh 0201 2121 Fax 0201 212 205 Päivystys 040 8371 150 E mail vacon vacon com http www vacon com Ud00136e doc 3 10 2000 ...

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