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Serial communication
500 Address
(BUS ADDRESS)
Value:
0 - 126
Function:
This parameter allows the allocation of an
address to each variable frequency drive in a
serial communication network.
Description of choice:
The individual variable frequency drive must be
allocated a unique address.
If the number of units connected (variable
frequency drives + 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
(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 variable frequency drive'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.
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.90.F2.22 - VLT is a registered Danfoss trademark
Decentral Solutions
502 Coasting Stop
(COASTING SELECT)
Value:
Digital input (DIGITAL INPUT)
Serial port (SERIAL PORT)
1
Logic and (LOGIC AND)
Logic or (LOGIC OR)
Function:
Parameters 502-508 allow a choice between
controlling the variable 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].
NOTE
Note that Coasting stop and Bit 03 in the
[0]
control word are active at logic '0'.
[1]
Digital input [0]
[2]
Dig. input
[3]
0
[4]
0
[5]
1
1
Serial port [1]
Dig. input
0
0
1
1
Logic and [2]
Dig. input
0
0
1
1
Ser. port
Function
0
Coasting
1
Coasting
0
Motor running
1
Motor running
Ser. port
Function
0
Coasting
1
Motor running
0
Coasting
1
Motor running
Ser. port
Function
0
Coasting
1
Motor running
0
Motor running
1
Motor running
[0]
[1]
[2]
[3]
161
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