Parameters - Serial communication
500 Address
(BUS ADDRESS)
Value:
Parameter 500 Protocol = FC protocol [0]
0 - 126
1
Parameter 500 Protocol = MODBUS RTU [2]
1 - 247
1
Function:
This parameter allows the allocation of an address to
each adjustable frequency drive in a serial communi-
cation network.
Description of choice:
The individual adjustable frequency drive must be al-
located a unique address.
If the number of units connected (adjustable frequency
drives + master) is higher than 31, a repeater must be
used.
Parameter 500 Address cannot be selected via the se-
rial communication, but must be preset via the control
unit.
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 to be transmitted via the serial connection.
Baud rate is defined as the number of bits transferred
per second.
Description of choice:
The transmission speed of the adjustable frequency
drive is to be set at a value that corresponds to the
transmission speed of the PLC/PC. Parameter 501
cannot be selected via the serial port, RS 485. The
data transmission time proper, which is determined by
the set baud rate, is only part of the total communica-
tion time.
502 Coasting
(COASTING SELECT)
503 Quick-stop
(Q STOP SELECT)
504 DC-brake
(DC BRAKE SELECT)
505 Start
(START SELECT)
507 Selection of Setup
(SETUP SELECT)
508 Selection of speed
(PRES.REF. SELECT)
Value:
Digital input (DIGITAL INPUT) [0]
Bus (SERIAL PORT) [1]
Logic and (LOGIC AND) [2]
Logic or (LOGIC OR) [3]
Function:
Parameters 502-508 allow a choice between control-
ling the adjustable frequency drive via the terminals
(digital input) and/or via the bus.
If Logic and or Bus is selected, the command in ques-
tion can only be activated if transmitted via the serial
communication port. In the case of Logic and, the com-
mand must additionally be activated via one of the
digital inputs.
Description of choice:
Digital input [0] is selected if the control command in
question is only to be activated via a digital input.
Bus [1] is selected if the control command in question
is only to be activated via a bit in the control word (se-
rial communication).
Logic and [2] is selected if the control command in
question is only to be activated when a signal is trans-
mitted (active signal = 1) via both a control word and a
digital input.
VLT
®
5000 Series
= factory setting, () = display text, [] = value for use in communication via serial communication port
MG.51.C5.22 - VLT
p
is a registered Danfoss trademark. 141
Programming
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