Danfoss VLT 6000 series User manual

Instruction Manual
BACLink®
VLT®6000 and VLT® 2800
Adjustable Frequency Drives
176U7869 10/02

DANGER
!
Rotatingshaftsandelectricalequipmentcan
be hazardous. Therefore, it is strongly
recommended that all electrical work
conform to National Electrical Code (NEC)
and all local regulations. Installation, start-
up and maintenance should be performed
only by qualified personnel.
Motor control equipment and electronic controls are connected to
hazardous line voltages. When servicing drives and electronic
controls, there will be exposed components at or above line
potential. Extreme care should be taken to protect against shock.
Stand on an insulating pad and make it a habit to use only one
hand when checking components. lways work with another
person in case of an emergency. Disconnect power whenever
possible to check controls or to perform maintenance. Be sure
equipment is properly grounded. Wear safety glasses whenever
working on electric control or rotating equipment.
Touching electrical parts may be fatal ñ even after equipment has
been disconnected from AC line. To be sure that capacitors have
fully discharged, wait 14 minutes after power has been removed
before touching any internal component.
DANGER
!
Copyright © 2002, Danfoss Graham
WARNING
!
Warnings Against Unintended Start
1. While the drive is connected to the C line, the motor can be
brought to a stop by means of external switch closures, serial bus
commands or references. If personal safety considerations make it
necessary to ensure that no unintended start occurs, these stops
are not sufficient.
2. During programming of parameters, the motor may start. Be
certain that no one is in the area of the motor or driven equipment
when changing parameters.
3. motor that has been stopped may start unexpectedly if faults
occur in the electronics of the drive, or if an overload, a fault in the
supply C line or a fault in the motor connection or other fault
clears.
4. If the Local/Hand key is activated, the motor can only be brought
to a stop by means of the Stop/Off key or an external safety
interlock.
CAUTION
!
Electronic components of BACLink portal are
sensitive to electrostatic discharge (ESD). ESD
can reduce performance or destroy sensitive
electronic components. Follow proper ESD
procedures during installation or servicing to
prevent damage.

3
VLT is a registered Danfoss trademark
Table of Contents
Introduction ...................................................................................................................................................... 5
About this manual ...................................................................................................................................... 5
References ................................................................................................................................................. 5
Trademarks ................................................................................................................................................. 5
Mounting requirements ................................................................................................................................... 7
Wiring and terminal tightening specifications .............................................................................................. 7
Electrical iring ............................................................................................................................................... 8
VLT 6000 net ork connection ......................................................................................................................... 9
VLT 6000 termination s itch settings ....................................................................................................... 9
VLT 6000 net ork iring ........................................................................................................................... 9
VLT 6000 BACnet start up ........................................................................................................................ 10
Changing VLT 6000 parameter data ....................................................................................................... 10
VLT 2800 net ork connection ....................................................................................................................... 11
VLT 2800 BACnet start up ........................................................................................................................ 11
Changing VLT 2800 parameter data ....................................................................................................... 11
Ethernet net ork connection ....................................................................................................................... 12
Wiring ........................................................................................................................................................ 12
Set IP address of portal ............................................................................................................................ 13
Set configuration jumpers on portal ....................................................................................................... 13
ARCnet net ork connection ......................................................................................................................... 14
EIA-485 net ork connection ......................................................................................................................... 15
EIA-232 net ork connection ......................................................................................................................... 16
Po er up ........................................................................................................................................................ 17
Troubleshooting drive communication ........................................................................................................ 17
Troubleshooting Ethernet communication .................................................................................................. 17
Loss of signal recovery time ......................................................................................................................... 17
Appendix: BACnet POINT MAPPING TABLES for BACLink PORTAL ......................................................... 18

5
VLT is a registered Danfoss trademark
Introduction
The Danfoss BACLink® is a microprocessor based communication
portal that provides seamless translation between BACnet and
Danfoss VLTs. The portal supports BACnet communications
through thernet, BACnet IP over thernet (often referred to as
thernet IP), ARCnet, IA-485 (using MS/TP), or IA-232 (PTP).
The BACLink portal provides a dedicated thernet port and two
serial communication ports which can be configured for different
protocols. Baud rates are software selectable. An optional IA-485
4-wire connection is also available to extend network cable length
beyond 4000 feet.
Do not input multiple protocol formats to the portal at the same time
since this can cause a communications loop and generate
excessive electrical noise.
BACLink accesses the Johnson Controls Metasys® N2 protocol
resident in the Danfoss VLT® 2800 and VLT® 6000 Adjustable
Frequency Drives. The BACLink port operates with an internal
ARCnet operating protocol. Recommended connection is through
IA-485 compatible, half duplex, 9600 baud, shielded twisted-pair
wiring. Data points in the N2 database are classified as analog I/O
(floating point), binary I/O or integer data points. ach data type
has a unique structure defined in the Metasys N2 system Protocol
Specification for Vendors.
An appendix at the back of this manual contains the drive point
maps for BACnet.
About this manual
The information in this manual is intended to provide
comprehensive information on installation and set up of the VLT for
communication over a BACnet network.
It is assumed that the user has knowledge of the capabilities of the
BACnet network in addition to an understanding of the Danfoss
VLT 2800 and VLT6000 drives. For specific information on
operation of the drive, refer to the Installation, Operation and
Maintenance Manual for the VLT 6000 or the Operating
Instructions for the VLT 2800.
References
In addition to this manual, the following manuals may be
referenced:
Installation, Operation and Maintenance Manual for the
VLT®6000 djustable Frequency Drive, Danfoss Graham
number 23-6108-00.
Operating Instructions for the VLT ® 2800, Danfoss number
MG28Axxx
Johnson Controls Metasys® N2 System Protocol Specification
for Vendors, Johnson Controls number 04-3402-22.
Trademarks
Metasys® N2 is a Johnson Controls Inc registered trademark.
VLT® is a Danfoss registered trademark.

6VLT is a registered Danfoss trademark
Power switch. Two position on/off power switch.
Portal address label. Identifies factory-set or default portal
addresses.
Port connectors label. Identifies factory-settings for
communication ports 1 and 2. Default setting for port 1 is
unassigned. Default setting for port 2 is IA-485.
24 VAC connector. Input power for BACLink module.
Format button. Normally not used with BACnet. Contact the
Danfoss Graham service department for information on its use to
clear factory-set programming.
Address rotary switches. Rotary switches used to set BACLink
portal network addresses. Set addresses 01-99 with DIP switch 5
in the +0 position. Set addresses 100-199 with DIP switch 5 in the
+100 position.
Port 1. Preferred port for ARCnet connection. Selectable for
ARCnet or 2-wire IA-485. Set DIP switch 4 (Port 1) to Other to
enable linking drives with IA-485 wiring. Set DIP switch 4 (Port
1) to ARC156 for use as ARCnet connector. (See DIP switches.)
Figure 1. BACLink Portal
LED indicators. Status indicator lights for functions as labeled.
Access port. Utility port for factory programming, set up, and to
assign the IP address. The access port cannot be used as a
communication point or to download memory to the BACLink.
D P switches. Two position switches used to enable selection of
IP address, module address, and network type. Sw1 and Sw2
are disabled in VLT communication applications.
Keypad/Display port. Access port for optional keypad.
Port 2. Preferred port for IA-485 connection to the VLT drives.
The terminal is jumper selectable for 2-wire/4-wire IA-485 or
IA-232. Default setting is IA-485 (2-wire).
Port 2 configuration jumpers. Jumper placement determines
the configuration for IA-485 (2-wire), IA-485 (4-wire), or
IA-232 communication for Port 2. Default is IA-485 2-wire.
Ethernet port. thernet network connector supports 10baseT
network communication with BACLink.
Power
Run
Error
Port 1 Transmit
Port 1 Receive
Port 2 Transmit
Port 2 Receive
Link
Lan
Shield
Net -
Net +
Port 1
Address
Format
Single Class 2
Source Only
24 VAC, 60-80 Hz
7.2VA, 0.3A
Use Copper
Conductors Only
Open Energy
Management Equipment
Ethernet
10 baseT
Keypad/Display
Port
1432
O N
Access
Port
Off/On
Default/Assigned
ARC156/Other
Address
+0 / +100
IP Addr
Port 1
Sw1
VLT
Æ
BACLink
ô
Ground
24 Vac
PowerOff On
2 wire 4 wire EIA-232
Net + Tx + Tx
Net - Tx - Rx
n/c Rx + DTR/RTS
n/c Rx - DCD/CTS
Signal Ground
EIA-485
EIA-232
485 - 4w 485 - 2w
10ës
1ës
Format Button
Addressing
Rotary Switches
Access Port
DIP Switches
Keypad/Display Port
Port 2
Port 2
Configuration
Jumpers
Ethernet
6"
1"
7
1
/
20 "
1
/
5
"
Port 1
LED Indicators
24 VAC
Power Switch
Depth: 1
5
/
8
"
BACnet
Assigned IP Address
Port 2
Port 1
Connection
Connection
Portal Address Label
Port Connectors Label
Port

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VLT is a registered Danfoss trademark
Wiring and terminal tightening specifications
Terminal tightening and wire specifications for the VLT2800 and
VLT 6000 are defined in Table I.
Total wiring length to connect up to 10 VLT 6000 and VLT 2800
drives from the BACLink portal should not exceed 3,000 feet
(900m) at 9600 baud rate.
Table I. Control Wiring and Torque
Specifications
Mounting requirements
Mount the BACLink enclosure as required using the predrilled
mounting holes (see Figure 2). The unit weighs approximately
15.3 pounds (7 kg).
For BACLink portals ordered without an enclosure, mount the unit
in an enclosed panel using the mounting holes provided on the
BACLink portal backplate (refer back to Figure 1). Leave about 2
inches (5 centimeters) on each side for wiring access. In addition,
the BACLink portal requires 24 VAC input power.
BACLink portal is a Class 2 device (less
than 30VAC, 100VA maximum). Take
appropriate isolation measures when
mounting BACLink portal in control panels
where non-Class 2 devices (for example,
120VAC) or wiring are present.
WARNING
!
11.00
[279.4]
∅0.31
[7.9]
4 PLCS.
9.00
[228.6] 12.22
[310.4]
12.22
[310.4] 4.21
[107.0]
NOTE: Dimensions in inches [mm].
Figure 2. BACLink Enclosure Mounting Dimensions
Torque
Specification Control Wiring 24 VAC Input Wiring
4.5 in-lbs (0.5 Nm) 18 – 24 AWG
(0.75mm2– 0.2mm2)
shielded twisted pair
22 AWG (0.3mm2)

8VLT is a registered Danfoss trademark
Figure 3. BACLink Enclosure Electrical Components
Electrical wiring
1. Power must be supplied to the 115 VAC outlet from an
external source (see Figure 3 .
2. Plug transformer into 115 VAC outlet.
3. Connect transformer cable to 24 VAC connector on
BACLink board.

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VLT is a registered Danfoss trademark
Table II. VLT 6000 DIP Switch Settings
Figure 4. VLT 6000 DIP Switch
VLT 6000 network connection
VLT 6000 termination switch settings
DIP switches 2 and 3 on the main control board of the VLT6000
(see Figure ) are used to configure the drive for BACnet serial
bus termination. The switch position shown is the factory setting.
See Table II for setting information. The DIP switch are located
directly above terminals 61, 68 and 69 on the board.
Figure 5. VLT 6000 Network iring
68
61 69
N(-)
EIA-485
COM
P(+)
EIA-485
VLT 6000 network wiring
1. Connect signal wires to drive terminal 68 (P+) and terminal
69 (N-) on main control board of drive (see figure ).
2. If shielded cabling is used, connect one end of shield to
terminal 61. This terminal is connected to ground via an
internal RC link.
For additional wiring guidelines, see the procedures for specific
network-type connections in this manual.
NOTE
It is highly recommended to use shielded,
twisted-pairwires toreduceelectrical noise
on drive communications. Ensure that
drive is grounded properly according to
instructions in the drive manual.
SWITCH SETTING
Switch 1 Reserved/No function
Switches 2 & 3 Used for terminating an EIA-485 interface. When
the drive is the first, last, or only device on a
network, switches 2 and 3 must be ON.
When the drive is in any other location on the
network, switches 2 and 3 must be OFF.
Switch 4 Not applicable with BACnet.

10 VLT is a registered Danfoss trademark
VLT 6000 BACnet start up
The BACLink portal will have factory default settings ready for
operation without user adjustment. Parameters 500, 501 and 502
must be set as shown in Table III. Other settings may be
changed to meet application re uirements. Refer to the VLT 6000
Installation, Operation and Maintenance Manual for details on
programming the drive.
The appendix in this manual lists point maps for BACnet.
Table III. VLT 6000 Serial Communication Startup Parameter Settings
Parameter Name Setting
500 Protocol METASYS N2
501 Address 01
502 Baud rate 9600 BAUD (fixed at 9600 for N2 protocol)
503 Coasting LOGIC OR
504 DC brake LOGIC OR
505 Start LOGIC OR
506 Reversing DIGITAL INPUT
507 Select setup LOGIC OR
508 Select speed LOGIC OR
560 Override release time OFF
The values in bold are default values.
Changing VLT 6000 parameter data
Use the VLT 6000 keypad to access the Extended Menu key and
the 500 Group (serial communication) parameters Enter or
change parameter data or settings in accordance with the
following procedure
1 Press [Extend Menu] key
2 Use t and u keys to find parameter group to edit
3 Use [+] and [-] keys to find parameter you chose to edit
4 Press [Change Data] key
5 Use [+] and [-] keys to select correct parameter setting
6 Press [Cancel] key to disregard change, or press [OK] key
to accept change and enter new setting
7 Press [Display Mode] key to return to normal drive display

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VLT is a registered Danfoss trademark
VLT 2800 network connection
1 Connect signal wires to drive terminal 68 (P+) and terminal
69 (N-) on main control board of drive (see Figure 6)
2 If shielded cabling is used, observe standard shielding
practice by grounding shielded wiring at only one point in
system
For additional wiring guidelines, see the procedures for specific
network-type connections in this manual
NOTE
It is highly recommended to use shielded,
twisted-pairwires toreduceelectrical noise
on drive communications. Ensure that
drive is grounded properly according to
instructions in the drive manual.
VLT 2800 BACnet start up
The BACLink portal will have factory default settings ready for
operation without user adjustment
Parameters 500, 501 and 561 must be set as shown in Table
IV. Other settings may be changed to meet application
requirements The settings shown will serve as a good starting
reference Refer to the VLT2800 Operating Instructions for
details on changing parameters and programming the drive
The appendix in this manual lists point maps for BACnet
Changing VLT 2800 parameter data
Use the VLT 2800 keypad to access the Menu Mode and the 500
Group (serial communication) parameters Enter or change
parameter data or settings in accordance with the following
procedure
1 Press [Quick Menu] and [+] key at same time to enter menu
mode
2 Use [+] and [-] keys to find parameter you chose to edit
3 Press [Change Data] key
4 Use [+] and [-] keys to select correct parameter setting
5 Press [Change Data] key to accept change and enter new
setting or press [Quick Menu] key to disregard change
6 Press [Quick Menu] key to return to display mode
Parameter Name Setting
500 Address 001
501 Baud rate 9600 BAUD (fixed at 9600 for N2 protocol)
502 Coasting LOGIC OR
503 Quick stop LOGIC OR
504 DC brake LOGIC OR
505 Start LOGIC OR
506 Reversing LOGIC OR
507 Select setup LOGIC OR
508 Select speed LOGIC OR
560 N2 Override release time OFF
561 Protocol METASYS N2
Table IV. VLT 2800 Serial Communication Startup Parameter Settings
The values in bold are default values.
Figure 6. VLT 2800 Networ Connection
68
67 70
69
N(-)
EIA-485
P(+)
EIA-485
