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VLT
®
6000 HVAC
MG.60.B1.02 - VLT is a registered Danfoss trademark
132
✭
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factory setting. ( ) = parameter window text. [ ] = value for use in communication via serial communication port
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Serial communication 500 - 556
In this parameter group, the serial communication of
the VLT frequency converter is set up.
There is a choice of three protocols: FC protocol,
Metasys N2 and Landis/Staefa. In order to use serial
communication, address and baudrate must always
be set. In addition, such present operational data as
reference, feedback and motor temperature can be
read via serial communication.
500 Protocol (PROTOCOL)
Value:
★
FC protocol (FC PROTOKOL)
[0]
Metasys N2 (METASYS N2)
[1]
Landis/Staefa FLN (LS FLN)
[2]
Function:
There is a choice of three different protocols.
Description of choice:
Select the required control word protocol.
501 Address (ADRESSE)
Value:
Parameter 500
Protocol = FC protolkol
[0]
0 - 126
★
1
Parameter 500
Protocol = Metasys N2
[1]
1 - 255
★
1
Parameter 500
Protocol = LS FLN
[3]
0 - 98
★
1
Function:
In this parameter it is possible to allocate an address
in a serial communication network to each VLT
frequency converter.
Description of choice:
The individual VLT frequency converter must be given
a unique address.
If the number of units connected (VLT frequency
conv master) exceeds 31, an amplifier
(repeater) must be used.
Parameter 501
Address
cannot be chosen via serial
communication, but must be set via the LCP control
unit.
502 Baudrate (BAUDRATE)
Value:
300 Baud (300 BAUD)
[0]
600 Baud (600 BAUD)
[1]
1200 Baud (1200 BAUD)
[2]
2400 Baud (2400 BAUD)
[3]
4800 Baud (4800 BAUD)
[4]
★
9600 Baud (9600 BAUD)
[5]
Function:
In this parameter, the speed is programmed at which
data is transmitted via serial communication.
Baudrate is defined as the number of bits transmitted
per second.
Description of choice:
The transmission speed of the VLT frequency
converter must be set at a value that corresponds to
the transmission speed of the master. Parameter 502
Baudrate
cannot be selected via serial
communication; it must be set via the LCP control
unit.
The data transmission time itself, which is determined
by the baudrate selected, is only part of the total
communication time.
503 Coasting stop (COASTING)
Value:
Digital input (DIGITAL INPUT)
[0]
Serial communication (SERIAL PORT)
[1]
Logic and (LOGIC AND)
[2]
★
Logic or (LOGIC OR)
[3]
Function:
In parameters 503-508, a choice can be made to
control the VLT frequency converter via the digital
inputs and/or via serial communication.
If
Serial communication
[1] is selected, the command
in question can only be activated if a command is
given via serial communication.
If
Logic and
[2] is selected, the function must in
addition be activated via a digital input.