Danfoss VLT Decentral FCD 300, Operating Instructions Manual

Page: 82 / 112

3.8 Parameter Group 5-** Serial communication
500 Address
Value:
Parameter 500 Protocol = FC protocol [0]
0 - 247
1
Parameter 500 Protocol = Metasys N2 [1]
1 - 255
1
Parameter 500 Protocol = MODBUS RTU [3]
1 - 247
1
Function:
This parameter allows the allocation of an address to each frequency
converter in a serial communication network.
Description of choice:
The individual frequency converter must be allocated a unique address.
If the number of units connected (frequency conv 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 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 Coasting Stop
Value:
Digital input (DIGITAL 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 controlling the adjustable
frequency drive 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
Logic or [3]
Dig. input Ser. port Function
0 0 Coasting
0 1 Coasting
1 0 Coasting
1 1 Motor running
503 Quick-stop
Value:
Digital input (DIGITAL INPUT) [0]
Serial port (SERIAL PORT) [1]
Logic and (LOGIC AND) [2]
Logic or (LOGIC OR) [3]
Function:
See function description for parameter 502 Coasting stop.
Description of choice:
The table below shows when the motor is running and when it is in Quick-
stop mode, when each of the following is selected:
Digital input
[0],
Serial
port
[1],
Logic and
[2] or
Logic or
[3].
NB!
Note that Quick-stop inverse and Bit 04 in the control
word are active at logic '0'.
VLT® Decentral FCD 3 Programming
MG.04.B8.02 - VLT is a registered Danfoss trademark
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