Danfoss VLT 6000, VLT 2800, BACLink VLT 6000, BACLink VLT 2800 Instruction Manual
VLT® 6000 and VLT® 2800
Adjustable Frequency Drives
Instruction Manual
176U7869 10/02
®
BACLink
DANGER
!
Rotating shafts and electrical equipment can
be hazardous. Therefore, it is strongly
recommended that all electrical work
conform to National Electrical Code (NEC)
and all local regulations. Installation, startup 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. Always 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.
WARNING
!
Warnings Against Unintended Start
1. While the drive is connected to the AC 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. A 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 AC 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.
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
Table of Contents
Introduction ...................................................................................................................................................... 5
About this manual ...................................................................................................................................... 5
References ................................................................................................................................................. 5
Trademarks ................................................................................................................................................. 5
Mounting requirements ................................................................................................................................... 7
Wiring and terminal tightening specifications .............................................................................................. 7
Electrical wiring ............................................................................................................................................... 8
VLT 6000 network connection......................................................................................................................... 9
VLT 6000 termination switch settings ....................................................................................................... 9
VLT 6000 network wiring ........................................................................................................................... 9
VLT 6000 BACnet start up ........................................................................................................................ 10
Changing VLT 6000 parameter data ....................................................................................................... 10
VLT 2800 network connection....................................................................................................................... 11
VLT 2800 BACnet start up ........................................................................................................................ 11
Changing VLT 2800 parameter data ....................................................................................................... 11
Ethernet network connection ....................................................................................................................... 12
Wiring ........................................................................................................................................................ 12
Set IP address of portal ............................................................................................................................ 13
Set configuration jumpers on portal ....................................................................................................... 13
ARCnet network connection ......................................................................................................................... 14
EIA-485 network connection ......................................................................................................................... 15
EIA-232 network connection ......................................................................................................................... 16
Power 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
VLT is a registered Danfoss trademark
3
Introduction
References
The Danfoss BACLink® is a microprocessor based communication
portal that provides seamless translation between BACnet and
Danfoss VLTs. The portal supports BACnet communications
through Ethernet, BACnet IP over Ethernet (often referred to as
Ethernet IP), ARCnet, EIA-485 (using MS/TP), or EIA-232 (PTP).
The BACLink portal provides a dedicated Ethernet port and two
serial communication ports which can be configured for different
protocols. Baud rates are software selectable. An optional EIA-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
resident in the Danfoss VLT
®
2800 and VLT® 6000 Adjustable
®
N2 protocol
Frequency Drives. The BACLink port operates with an internal
ARCnet operating protocol. Recommended connection is through
EIA-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. Each data type
has a unique structure defined in the Metasys N2 system Protocol
Specification for Vendors.
In addition to this manual, the following manuals may be
referenced:
Installation, Operation and Maintenance Manual for the
®
VLT
6000 Adjustable 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.
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 VLT6000 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.
VLT is a registered Danfoss trademark
5
Ethernet
Port
Port 2
Configuration
Jumpers
Port 2
Keypad/Display Port
DIP Switches
Power Switch
6"
1
/5"
Off On
Single Class 2
Source Only
24 VAC, 60-80 Hz
7.2VA, 0.3A
Use Copper
Conductors Only
Management Equipment
ô
Open Energy
Ground
24 Vac
24 VAC
Portal Address Label
1
7
/
20
"
485 - 4w
485 - 2w
2 wire 4 wire EIA-232
Net + Tx + Tx
Net n/c
n/c Rx - DCD/CTS
Signal Ground
Ethernet
10 baseT
BACnet
Assigned IP Address
EIA-232
EIA-485
VLTÆ BACLink
Tx - Rx
Rx + DTR/RTS
Power
Port Connectors Label
N
O
1432
Keypad/Display
Port
Power
Run
Error
Port 1 Transmit
Port 1 Receive
Port 2 Transmit
Port 2 Receive
Link
Lan
IP Addr
Sw1
Port 1
Port 1
Connection
Port 2
Connection
Off/On
Default/Assigned
ARC156/Other
Address
+0 / +100
Access
Port
Format
Address
Format Button
10ës
1ës
Shield
Net -
Port 1
Net +
Addressing
Rotary Switches
Port 1
Access Port
1"
LED Indicators
Figure 1. BACLink Portal
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 EIA-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.
5
Depth: 1
/8"
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.
DIP 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 EIA-485 connection to the VLT drives.
The terminal is jumper selectable for 2-wire/4-wire EIA-485 or
EIA-232. Default setting is EIA-485 (2-wire).
Port 2 configuration jumpers. Jumper placement determines
the configuration for EIA-485 (2-wire), EIA-485 (4-wire), or
EIA-232 communication for Port 2. Default is EIA-485 2-wire.
Port 1. Preferred port for ARCnet connection. Selectable for
ARCnet or 2-wire EIA-485. Set DIP switch 4 (Port 1) to Other to
enable linking drives with EIA-485 wiring. Set DIP switch 4 (Port
1) to ARC156 for use as ARCnet connector. (See DIP switches.)
6
VLT is a registered Danfoss trademark
Ethernet port. Ethernet network connector supports 10baseT
network communication with BACLink.
Mounting requirements
Wiring and terminal tightening specifications
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.
WARNING
!
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,
120V AC) or wiring are present.
Terminal tightening and wire specifications for the VLT2800 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
Torque
Specification
4.5 in-lbs (0.5 Nm) 18 – 24 AWG
Control Wiring 24 VAC Input Wiring
2
(0.75mm
shielded twisted pair
2
– 0.2mm2)
22 AWG (0.3mm
)
11.00
[279.4]
12.22
[310.4]
0.31
∅
[7.9]
4 PLCS.
9.00
[228.6]
12.22
[310.4]
4.21
[107.0]
Figure 2. BACLink Enclosure Mounting Dimensions
NOTE: Dimensions in inches [mm].
VLT is a registered Danfoss trademark
7
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.
Figure 3. BACLink Enclosure Electrical Components
8
VLT is a registered Danfoss trademark
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