VLT
®
FCD Series
■
Serial communication
500
500 Address
(BUS ADDRESS)
Value:
0 - 126
✭
1
Function:
This parameter allows the allocation of an address
to each frequency converter in a serial communica-
tion network.
Description of choice:
The individual frequency converter must be allocated
a unique address.
If the number of units connected (frequency convert-
ers + master) is higher than 31, a repeater must be
used.
Parameter 500
Address
cannot be selected via the
serial communication, but must be preset via the
control unit.
501
501 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:
This parameter is for programming the speed at
which data is transmitted via the serial port. Baud
rate is defined as the number of bits transmitted per
second.
Description of choice:
The frequency converter’s transmission speed must
be set at a value corresponding to the transmission
speed of the master.
Parameter 501
Baudrate
cannot be selected via the
serial port, but must be preset via the operating unit.
502
502 Coasting Stop
(COASTING SELECT)
Value:
Digital input (DIGIT AL INPUT)
[0]
Serial port (SERIAL PORT)
[1]
Logic and (LOGIC AND)
[2]
✭
Logic or (LOGIC OR)
[3]
Function:
Parameters 502-508 allow a choice between control-
ling the frequency converter via the digital inputs
and/or via the serial port.
If
Serial port
[1] is selected, the relevant command
can only be activated if a command is given via the
serial port.
In the case of
Logic and
[2] the function must also
be activated via a digital input.
Description of choice:
The table below shows when the motor is running
and when it is coasting, when each of the following
is selected:
Digital input
[0],
Serial port
[1],
Logic
and
[2] or
Logic or
[3].
NB!:
Note that
Coasting stop
and Bit
03 in the control word are active at logic ’0’.
Digital input
[0]
Dig. input
Ser. port
Function
0
0
Coasting
0
1
Coasting
1
0
Motor running
1
1
Motor running
Serial port
[1]
Dig. input
Ser. port
Function
0
0
Coasting
0
1
Motor running
1
0
Coasting
1
1
Motor running
Logic and
[2]
Dig. input
Ser. port
Function
0
0
Coasting
0
1
Motor running
1
0
Motor running
1
1
Motor running
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.04.A1.02 - VLT is a registered Danfoss trade mark
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