Parameter Group 5-** Serial Communication - Danfoss VLT FCD 300 Series Design Manual

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VLT Decentral FCD 300 Design Guide

4.8 Parameter Group 5-** Serial communication

500 Address
Value:
Parameter 500 Protocol = FC protocol [0]
0 - 247
Parameter 500 Protocol = Metasys N2 [1]
1 - 255
Parameter 500 Protocol = MODBUS RTU [3]
1 - 247
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 converters + 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)
600 Baud (600 BAUD)
1200 Baud (1200 BAUD)
2400 Baud (2400 BAUD)
4800 Baud (4800 BAUD)
9600 Baud (9600 BAUD)
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.
Baudrate
Parameter 501 cannot be selected via the serial port, but must
be preset via the operating unit.
502 Coasting Stop
Value:
Digital input (DIGITAL INPUT)
Serial port (SERIAL PORT)
Logic and (LOGIC AND)
Logic or (LOGIC OR)
Function:
Parameters 502-508 allow a choice between controlling the adjustable
frequency drive via the digital inputs and/or via the serial port.
Serial port
If [1] is selected, the relevant command can only be activated
if a command is given via the serial port.
Logic and
In the case of [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:
Logic and
1
1
1
Digital input
Serial port
[0]
Logic and
[1]
[2]
[3]
[4]
[5]
Logic or
503
Value:
Digital input (DIGITAL INPUT)
Serial port (SERIAL PORT)
Logic and (LOGIC AND)
Logic or (LOGIC OR)
[0]
Function:
[1]
See function description for parameter 502
[2]
Description of choice:
[3]
The table below shows when the motor is running and when it is in Quick-
stop mode, when each of the following is selected:
port
[1],
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Digital input
[2] or Logic or [3].
NB!
Note that Coasting stop and Bit 03 in the control word
are active at logic '0'.
[0]
Dig. input Ser. port
0 0
0 1
1 0
1 1
[1]
Dig. input Ser. port
0 0
0 1
1 0
1 1
[2]
Dig. input Ser. port
0 0
0 1
1 0
1 1
[3]
Dig. input Ser. port
0 0
0 1
1 0
1 1
Quick-stop
Logic and Logic or
[2] or [3].
NB!
Quick-stop inverse
Note that
word are active at logic '0'.
4 Programming
Serial port
[0], [1],
4
Function
Coasting
Coasting
Motor running
Motor running
Function
Coasting
Motor running
Coasting
Motor running
Function
Coasting
Motor running
Motor running
Motor running
Function
Coasting
Coasting
Coasting
Motor running
[0]
[1]
[2]
[3]
Coasting stop.
Digital input Serial
[0],
and Bit 04 in the control
109