Danfoss OPTCJ VACON NXP Air Cooled

Product Information:

Vacon NX AC Drives with BACnet Option Board

Specifications

• Connections: RS-485 bus using a field board
• Communications: BACnet MS/TP
• Data transfer method: Transfer cable
• Electrical isolation: Yes
• Baud rate: Varies
• MAC Addresses: Multiple
• Ambient operating temperature: Varies
• Storing temperature: Varies
• Humidity: Varies
• Altitude: Varies
• Vibration: Varies
• Safety: High voltage warning

Product Usage Instructions

General Information

The Vacon NX frequency converters can be connected to the RS-485 bus using a field bus board. This allows for control, monitoring, and programming of the converter from the host system. The BACnet option board enables communication through the BACnet protocol, which is commonly used in building automation projects.

Installation

If you have purchased the BACnet option board separately, it should be installed in slot E on the control board of the frequency converter.

Commissioning

During the commissioning process, you will need to configure the fieldbus board parameters, access the expander board menu (M7), and set up the BACnet parameters.

Fieldbus Board Parameter

Configure the necessary field board parameters according to your specific requirements.

Expander Board Menu (M7)

Access the expander board menu (M7) to further customize the settings and functionalities of the BACnet option board.

BACnet Parameters

Set up the BACnet parameters, such as network addresses, device IDs, and communication settings, to establish communication with other BACnet devices in the network.

Fault Tracking

In case of faults or issues, refer to the fault tracking section of the user manual for troubleshooting steps and solutions.

FAQ

• Q: What is BACnet?
• A: BACnet stands for Building Automation and Control Network. It is an open protocol communication standard used in building automation systems.
• Q: Where should I install the BACnet option board?
• A : If you have purchased the BACnet option board separately, it should be installed in slot E on the control board of the frequency converter.

GENERAL INFO

Instead of sending and receiving information to and from frequency converters through I/O, you can connect them to a field. Vacon NX frequency converters can be connected to the RS-485 bus using a field board. The converter can then be controlled, monitored, and programmed from the host system. BACnet is also known by the names Direct Digital Control Systems and Building Management Systems. BACnet technology is used mostly in building automation, lighting control, air conditioning, and in heating automation. The protocol is an upper-level net protocol suitable for large building automation projects. BACnet stands for Building Automation and Control Network. BACnet is a true non-proprietary open protocol communication standard conceived by a consortium of building management, system users, and manufacturers. If you purchase your BACnet option board separately, please note that it shall be installed in slot E on the control board of the frequency converter.

WARNING!

Internal components and circuit boards are at high potential when the frequency converter is connected to the power source. This voltage is extremely dangerous and may cause death or severe injury if you come into contact with it.

 BACNET OPTION BOARD TECHNICAL DATA

detection)

MAC Addresses| 1 to 127
Environment| Ambient operating temperature| –10°C…55°C
Storing temperature| –40°C…60°C
Humidity| <95%, no condensation allowed
Altitude| Max. 1000 m
Vibration| 0.5 G at 9…200 Hz
Safety|  | Fulfils EN50178 standard

System Software versions

OPT-CJ BACnet option board is supported by system software versions:

• NXL NXL00005V149.VCN
• NXS NXS00001V161.VCN
• NXP NXP00002V160.VCN

Autobaud detection and BACnet-specific fault codes (readable from the panel) are added to system software versions:

• NXL NXL00005V248.VCN
• NXS NXS00001V163.VCN
• NXP NXP00002V162.VCN

Communication timeout is available from system SW versions. When not supported, the default is 10 seconds.

• NXL NXL00005V254.VCN
• NXS NXS00001V167.VCN
• NXP NXP00002V168.VCN

OPT-CJ software version OPTCJ_10522V009 and newer: New baud rate 76800 from software versions:

• NXL: NXL00005V257.VCN
• NXS: NXS00001V170.VCN
• NXP: NXP00002V171.VCN

BACNET FIELDBUS BOARD LAYOUT AND CONNECTIONS

Vacon BACnet option board is connected to the field bus through a 5-pin pluggable bus connector. The communication with the control board of the frequency converter takes place through the standard Vacon Interface Board Connector

*You can use this pin (1) to bypass the cable shield to the next slave

Table 3-1. OPT-CJ bus connector signals

GROUNDING CABLE SHIELD

This manner of grounding is the most effective and especially recommended when the distances between the devices are relatively short or if the device is the last device on the net. Note: Normally, the option board has already been installed in slot D or slot E of the control board. It is not necessary to detach the whole board for the grounding of the bus cable shield. Just detach the terminal block

1. Strip about 5 cm of the cable and cut off the grey cable shield.
   Remember to do this for both bus cables (except for the last device). See the pictures below.

2. Leave no more than 1 cm of the cable outside the terminal block and strip the data cables at about 0.5 cm to fit in the terminals. See the pictures below. Note: Do this for both bus cables.

3. insert the data cables of both cables into terminals #3 (Line B) and #4 (Line A).

4. Strip the cable at such a distance from the terminal that you can fix it to the frame with the grounding clamp. See the pictures below:

Grounding only one point on the net

In this manner of grounding, the shield is connected to the ground only at the last device on the net in the same way as described in Chapter 4.1. Other devices of the net just pass the shield.
We recommend you use an Abico connector to fit the shields into the terminal.

1. Strip about 5 cm of the cable and cut off the grey cable shield. Remember to do this for both bus cables (except for the last device).
2. Leave no more than 1 cm of the cable outside the terminal block and strip the data cable at about 0.5 cm to fit in the terminals. See Figure 4-4. Note! Do this for both cables.
3. Fix both the cables on the frame with the clamp. See Figure 4-5.

Bus terminal resistors

Figure 4-8. Using jumper X4 to set the bus termination. If Vacon is the last device of the field line the bus termination must be set. Use jumper X4 (ON position). See Figure 4-7. Note: Jumper X1 is only used when D9 type connector is assembled (Not used with BACnet protocol)

Bus Biasing

Bus biasing is required to ensure faultless communication between devices at the RS-485 bus. Bus biasing makes sure that the bus state is at proper potential when no device is transmitting. Without biasing, faulty messages can be detected when the bus is in an idle state. RS-485 bus state should be neither +0,200..+7V or –0,200..-7V. Illegal bus state is <200mV..-200mV.

Fail-safe biasing in OPT-CJ option board

Connect resistor biasing resistors between pins #2 and #4 as well as pins #3 and #5 as shown in the picture.

Matters related to this are discussed in the application note Failsafe Biasing of Differential Buses (an-847.pdf) published by National Semiconductor (www.national.com).

LED INDICATIONS

The two LED indications next to the connector show the present statuses of the BACnet board (yellow) and the Fieldbus Module (green).

BACnet board status LED (BS) YELLOW

the frequency converter
Blinking fast

(once/sec)

| The option board is activated and in RUN state

·        Option board is ready for external communication

Blinking slow

(once/5 secs)

| The option board is activated and in FAULT state

·        Internal fault of option board

Fieldbus status LED (FS)GREEN

converter

·        No external communication

ON| Fieldbus module is activated

·        Parameters received and module activated

·        Module is waiting for messages from the bus

Blinking fast

(once/sec)

| The module is activated and receives messages from the bus
Blinking slow

(once/5 secs)

| The module is in FAULT state

·        No messages from Master within the watchdog time

·        Bus broken, cable loose, or Master offline

INSTALLATION OF VACON NX BACNET BOARD

COMMISSIONING

READ FIRST CHAPTER 8 ‘COMMISSIONING’ IN VACON NX USER’S MANUAL (Document nr. ud00701, please visit http://www.vacon.com/Default.aspx?id=450403&FileView=462792).
Note! You must select Fieldbus as the active control place if you wish to control the frequency converter through Fieldbus. See Vacon NX User’s Manual, Chapter 7.3.3.1.

Fieldbus board parameters
The Vacon BACnet 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 7).

Expander board menu (M7)

The Expander board menu makes it possible for the user 1) to see what expander boards are connected to the control board and 2) to reach and edit the parameters associated with the expander board. Enter the following menu level (G#) with the Menu button right. At this level, you can browse through slots A to E with the Browser buttons to see what expander boards are connected. On the lowermost line of the display, you also see the number of parameter groups associated with the board. If you still press the Menu button right once you will reach the parameter group level where there are two groups: Editable parameters and Monitored values. A further press on the Menu button right takes you to either of these groups.

BACnet parameters

To commission the RS-485 board, enter the level P7.5.1.# from the Parameters group (G7.5.1). Give desired values to all RS-485 parameters (see Figure 7-1 and Table 7-1).

Figure 7-1. Changing the BACnet board commissioning parameter values

| Name| Default| Range| Description

---|---|---|---|---
1| MAC ADDRESS| 1| 1…127|
2| BAUD RATE| __

__

1

| 0 – Auto

1 – 9600 baud

2 – 19200 baud

3 – 38400 baud

4 – 76800 baud

| Communication speed
3| INDEX NR.| Counting

number

| __

0-65535

| Instance Number. Zero means that a unique default device object instance number is used.
4| Comm. time-out| 10 s| 0 = OFF

10 – 60 s

| Communication time-out 0 = Not in use

MS/TP MAC address (P7.x.1.1)

The parameters of every device must be set before connecting to the bus. Especially the parameters MAC Address and Baud Rate must be the same as in the master configuration. The first parameter, MAC (Medium Access Control) address, must be unique on the network to which it is connected. The same MAC address may be used on a device on another network within the internetwork. Addresses 128-254 are reserved for slaves. Addresses 1-127 are valid for both masters and slaves. The portion of the address space that is actually used for masters in a particular installation is determined by the value of the Max_Master property of the Device object. It is recommended that MAC address 0 be reserved for use by the MS/TP router and 255 is reserved for broadcasts.

Baud rate (P7.x.1.2)

Select the communication speed for the network. The default value is 9600 baud. 0 (– Auto) means that automatic baud rate detection is used. The used Baudrate is shown in the monitor
menu.

Instance number (P7.x.1.3)

The Device Object’s Instance number must be unique across the entire BACnet internetwork because it is used to uniquely identify the BACnet devices. It may be used to conveniently identify the BACnet device from other devices during installation. If 0 (default) is selected, the Device Instance number is read from Drive. This unique number is then shown in the Monitor menu. If any other value than zero is selected, the value is used as the Device Object’s Instance number. The actual value is shown in the monitor menu.

Communication time-out

BACnet board initiates a communication error if the communication is broken for as long as defined by the parameter Communication time-out. Communication time-out is disabled when the parameter is given the value 0. The step for setting the time-out time is 10 seconds.

Communication status (V7.x.2.1)

To see the present status of the RS-485 fieldbus, enter the Comm. Status page from the Monitor menu (G7.5.2). See Table 7-2 and Table 7-2 below.

Figure 7-2. Communication status

Good messages

0…999| Number of messages received without

communication errors

Bad Frames
0…64| Number of messages received with CRC or parity errors

Baud Rate (V7.x.2.2)

Shows the actual baud rate.

Fault (V7.x.2.3)

Shows BACnet fault codes. See Table 8-3 from Chapter 8.

Index Nr. (V7.x.2.4)

Shows the Device Object’s Instance number.

ANNEX  – PROTOCOL IMPLEMENTATION CONFORMANCE STATEMENT (NORMATIVE)

(This annex is part of this Standard and is required for its use.)

• BACnet Protocol Implementation Conformance Statement
• Date: May 31, 2005
• Vendor Name: Vacon
• Product Name: Vacon Drive – xxx (xxx = MAC ID)
• Product Model Number: OPTCJ
• Applications Software Version: 10522 Firmware Revision:
• Product Description:
• The BACnet Option board is designed for Vacon NX family devices.
• BACnet Standardized Device Profile (Annex L):
• BACnet Application Specific Controller (B-ASC)

List all BACnet Interoperability Building Blocks Supported (Annex K): DS-RP-B, DS-WP-B, DM-DDB-B, DM-DOB-B. Segmentation Capability:

• Segmented requests supported:Window Size
• Segmented responses supported:Window Size

Standard Object Types Supported:
An object type is supported if it may be present in the device. For each standard Object Type supported provide the following data:

1. Whether objects of this type are dynamically creatable using the CreateObject service
2. Whether objects of this type are dynamically deletable using the DeleteObject service
3. List of the optional properties supported
4. List of all properties that are writable where not otherwise required by this standard
5. List of proprietary properties and for each its property identifier, datatype, and meaning
6. List of any property range restrictions

Data Link Layer Options:

MS/TP master (Clause 9), baud rate(s): 9600, 19200, 34800, 76800 (supports auto baud detection)

Is static device binding supported? (This is currently necessary for two-way communication with MS/TP slaves and certain other devices.)

• Yes
•  No

Networking Options:

• Router, Clause 6 – List all routing configurations, e.g., ARCNET-Ethernet, Ethernet-MS/TP, etc.
• Annex H, BACnet Tunneling Router over IP
• BACnet/IP Broadcast Management Device (BBMD)

Does the BBMD support registrations by Foreign Devices? Character Sets Supported:

Indicating support for multiple character sets does not imply that they can all be supported simultaneously.

• ANSI X3.4
• IBM
• Microsoft
• DBCS
• ISO 10646 (UCS-2)
•  ISO 10646 (UCS-4)
• JIS C 6226
• ISO 8859-1

If this product is a communication gateway, describe the types of non-BACnet equipment/networks(s) that the gateway supports.

Object Map

Object types and properties supported:

Figure 7-3. Object types and properties supported:
Only with commendable values

Binary Value Object

Instance ID| Object Name| Description| Inactive / Active| Present Value

Access Type

---|---|---|---|---
BV0| Ready State| Indicates whether the drive is ready or not| Not Ready / Ready| R
BV1| Run/Stop State| Indicates whether the drive is running or

stopped

| Stop / Run| R
BV2| Fwd/Rev State| Indicates the rotation direction of the motor| Fwd / Rev| R
BV3| Fault State| Indicates if a fault is active| OK / Fault| R
BV4| Warning State| Indicates if a warning is active| OK / Warning| R
BV5| At Setpoint| Ref. Frequency reached| False / True| R
BV6| At Zero Speed| Motor Running at zero

speed

| False / True| R
BV7| General 0| Application specific bit from drives General Status Word| 0 / 1| R
BV8| General 1| Application specific bit from drives General Status Word| 0 / 1| R
BV9| General 2| Application specific bit from drives General

Status Word

| 0 / 1| R
BV10| General 3| Application-specific bit from drives General Status Word| 0 / 1| R
BV11| General 4| Application specific bit

from drives General Status Word

| 0 / 1| R
BV12| General 5| Application-specific bit from drives General Status Word| 0 / 1| R
BV13| General 6| Application specific bit from drives General Status Word| 0 / 1| R
BV14| General 7| Application specific bit

from drives General Status Word

| 0 / 1| R
BV15| Run/Stop CMD| Command to start drive (FB control is active)| Stop / Run| C
BV16| Fwd/Rev CMD| Command to change rotational direction (FB control is active)| Fwd / Rev| C
BV17| Reset Fault| Command to reset

Active Fault from dirve

| 0 / Reset| C
BV18| FBFixedControlWord

Bit_3

| Application Specific bit From the Fixed Control

Word

| 0 / 1| C
BV19| FBFixedControlWord

Bit_4

| Application Specific bit From the Fixed Control Word| 0 / 1| C
BV20| FBFixedControlWord

Bit_5

| Application Specific bit From the Fixed Control Word| 0 / 1| C
BV21| FBFixedControlWord

Bit_6

| Application Specific bit From the Fixed Control

Word

| 0 / 1| C
BV22| FBFixedControlWord

Bit_7

| Application Specific bit From the Fixed Control Word| 0 / 1| C
---|---|---|---|---
BV23| FBFixedControlWord

Bit_8

| Application Specific bit From the Fixed Control

Word

| 0 / 1| C
BV24| FBFixedControlWord

Bit_9

| Application Specific bit From the Fixed Control Word| 0 / 1| C
BV25| FBFixedControlWord

Bit_10

| Application Specific bit From the Fixed Control Word| 0 / 1| C
BV26| FBFixedControlWord

Bit_11

| Application Specific bit From the Fixed Control

Word

| 0 / 1| C
BV27| FBFixedControlWord

Bit_12

| Application Specific bit From the Fixed Control Word| 0 / 1| C
BV28| FBFixedControlWord

Bit_13

| Application Specific bit From the Fixed Control Word| 0 / 1| C
BV29| FBFixedControlWord

Bit_14

| Application Specific bit From the Fixed Control

Word

| 0 / 1| C
BV30| FBFixedControlWord Bit_15| Application Specific bit From the Fixed Control Word| 0 / 1| C

NOTE : For Present Value Access Types, R = Read-only, W = Writeable, C = Commandable. Commandable values support priority arrays & relinquish defaults.

Analog Value Object

Instance ID| Object Name| Description| Units| Present Value

Access Type

---|---|---|---|---
AV0| Frequency Setpoint| Frequency Setpoint| Hz| R
AV1| Output Frequency| Output Frequency| Hz| R
AV2| Motor Speed| Motor Speed| Rpm| R
AV3| Load (power)| Motor Shaft Power| Percent| R
AV4| Kilowatt Hours total| Megawatt Hour Counter (Total)| kWh| R
AV5| Motor Current| Motor Current| Amps| R
AV6| DC link Voltage| DC link Voltage| Volts| R
AV7| Motor Voltage| Motor Voltage| Volts| R
AV8| Unit Temperature| Heatsink Temperature NOT IN NXL -series| °  C| R
AV9| Motor Torque| In % of motor nominal Torque| Percent| R
AV10| Operating Days| Operating Days

(resettable)

| Day| R
AV11| Operating Hours| Operating Hours

(resettable)

| Hour| R
AV12| Kilowatt Hours| Kilowatt Hours

(resettable)

| kWh| R
AV13| Torque Reference| Torque Reference NOT IN NXL -series| Percent| R
AV14| __

Temperature Rise

| Calculated motor temperature 100,0% = nominal temperature of motor

NOT IN NXL -series

| Percent| R
---|---|---|---|---
AV15| FBProcessDataOut1| Application specific| -32768.0 to +32767.0

resolution 1.0

| R
AV16| FBProcessDataOut2| Application specific| -32768.0 to +32767.0

resolution 1.0

| R
AV17| FBProcessDataOut3| Application specific| -32768.0 to +32767.0

resolution 1.0

| R
AV18| FBProcessDataOut4| Application specific| -32768.0 to +32767.0

resolution 1.0

| R
AV19| FBProcessDataOut5| Application specific| -32768.0 to +32767.0

resolution 1.0

| R
AV20| FBProcessDataOut6| Application specific| -32768.0 to +32767.0

resolution 1.0

| R
AV21| FBProcessDataOut7| Application specific| -32768.0 to +32767.0

resolution 1.0

| R
AV22| FBProcessDataOut8| Application specific| -32768.0 to +32767.0

resolution 1.0

| R
AV23| Active Fault Code| Active Fault Code| –| R
AV24| __

Speed Reference

| Speed Reference, percentage of nominal speed| Percent| C
AV25| Current Limit| Current Limit| Amps| W
AV26| Min Frequency| Minimum Frequency| Hz| W
AV27| Maximum Frequency| Maximum Frequency| Hz| W
AV28| Accel Time| Acceleration Time| seconds| W
AV29| Decel Time| Deceleration Time| seconds| W
AV30| FBProcessDataIN 1| Application specific| -32768.0 to +32767.0

resolution 1.0

| C
AV31| FBProcessDataIN 2| Application specific| -32768.0 to +32767.0

resolution 1.0

| C
AV32| FBProcessDataIN 3| Application specific| -32768.0 to +32767.0

resolution 1.0

| C
AV33| FBProcessDataIN 4| Application specific| -32768.0 to +32767.0

resolution 1.0

| C
AV34| AnyParam ID| ID number that is used in AV35| 0.0 to 65535.0

resolution 1.0

| W
AV35| AnyParam Value| Value of ID defined by AV34| -32768.0 to +32767.0

resolution

| W
AV36| FBFixedControlWord PDI 0| 1) (see next page)|  | C
AV37| FBGeneralControlWord PDI 1| 2) (see next page)|  | C
AV38| FBFixedStatusWord PDO 0| 3) (see next page)|  | R
AV39| FBGeneralStatusWord PDO 1| 4) (see next page)|  | R

NOTE: For Present Value Access Types, R = Read-only, W = Writeable, C = Commandable. Commandable values support priority arrays & relinquish defaults.

Note: These Analog Value objects are introduced in BACnet SW version: OPTCJ_10522V009.vcn 1) FBFixedControlWord PDI 0, bit encoding (All-in-One Applications)

1. FBFixedControlWord PDI 0, bit encoding (All-in-One Applications
2. FBGeneralControlWord PDI 1, bit encoding Application Specific
3. FBFixedStatusWord (MCStatus) PDO 0, bit encoding Not all the bits are supported in every application
4. FBGeneralStatusWord PDO 1, bit encoding Application Specific

FAULT TRACKING

The table below presents the faults related to the BACnet option board. For more information, see also Vacon NX User’s Manual, Chapter 9. The BACnet option board status LEDs have been described in more detail in Chapter 5.

Fault

code

| Fault| Possible cause| Correcting measures
---|---|---|---
37| Device change| The option board changed.| Reset
38| Device added| Option board added.| Reset
39| Device removed| The option board was removed.| Reset
40| Device

unknown

| Unknown option board.|
53| Fieldbus fault| -The board has lost all contact with other devices on the network.

– Duplicate MAC ID (Bad Frames in “Comm. status” is incremented every time a frame is received from a device with the same MAC ID on the same segment.)

| Check the installation.

If installation is correct contact the nearest Vacon distributor.

Check that the MAC ID is unique.

54| Slot fault| Defective option board or slot.| Check the board and slot.

Contact the nearest Vacon distributor.

Table 8-1. RS-485 option board faults
You can define with parameters how the frequency converter shall react to certain faults:

P2.7.22

|

Response to Fieldbus fault

|

0

|

3

|  |

1

|

0

|

733

| 0=No response

1=Warning

2=Fault, stop acc. to 2.4.7

3=Fault, stop by coasting

P2.7.23

|

Response to slot fault

|

0

|

3

|  |

1

|

0

|

734

| 0=No response

1=Warning

2=Fault, stop acc. to 2.4.7

3=Fault, stop by coasting

Table 8-2. Frequency converter responses to faults

These BACnet-specific fault codes can be read from panel V7.x.2.3 (x is the used, D=4, E=5).

Fault

code

| Fault| Possible cause| Correcting measures
---|---|---|---
0| None|  |
1| Sole Master| Only device on the network| Add devices
2| Duplicate MAC ID| Some other device has the same MAC ID| Check MAC Addresses
3| Baudrate fault| Option card notices traffic, but can’t lock to the selected baud rate.| Check Baudrate

Table 8-3. BACnet specific faults

fault tracking

The MSTP- and BACnet-stack on the option board uses files from BACnetSim, a GPL project on SourceForge. The license for BACnetSim is GPL with a special exception that allows linking without requiring the rest of the code to be GPL. The source code for the GPL parts can be downloaded from SourceForge.

CONTACT

• Manual authoring:
• documentation@vacon.com
• Vacon Plc.
• Runsorintie 7
• 65380 Vaasa
• Finland
• Subject to change without prior notice
• © 2012 Vacon Plc.
• 24-hour support
• +358 (0)40 837 1150
• Email: vacon@vacon.com
• www.vacon.com

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