75
Serial Communication
Parameters 500 through 571
This parameter group sets up the drive for serial communication.
There is a choice of four protocols: FC (firmware protocol), Johnson
Controls Metasys N2, Siemens FLN, and Modbus RTU. In order to
use serial communication to control the drive, address and baud rate
must always be set. In addition to controlling the drive, operational data
from the drive including reference, feedback, motor temperature and
others can be read through serial communication.
500
Protocol
(PROTOCOL)
Value:
★
FC protocol (FC PROTOCOL)
[0]
Metasys N2 (METASYS N2)
[1]
Siemens FLN (FLN)
[2]
Modbus RTU (MODBUS RTU)
[3]
Function:
There is a choice of four different serial communication protocols.
Description of choice:
Select the required control word protocol.
501
Address
(ADDRESS)
Value:
Parameter 500
Protocol = FC protocol
0 through 126
★
1
Parameter 500
Protocol = Metasys N2
1 through 255
1
Parameter 500
Protocol = FLN
0 through 98
1
Parameter 500
Protocol = Modbus RTU
0 through 247
1
Function:
In this parameter it is possible to allocate an address in a serial
communication network to each drive.
Description of choice:
The individual drive must be given a unique address. If the number of
drives exceeds 31, a repeater must be used. Parameter 501,
Address,
cannot be chosen via serial communication but is set via the keypad.
502
Baud Rate
(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:
In this parameter, the speed at which data is transmitted via serial
communication is programmed. Baud rate is defined as the number of
bits transmitted per second.
Description of choice:
The transmission speed of the drive must be set at a value that
corresponds to the transmission speed of the master. Parameter 502,
Baud Rate,
cannot be selected through serial communication; it must be
set by the keypad. The data transmission time itself, which is determined
by the baud rate selected, is only part of the total communication time.
503
Coasting Stop
(COASTING)
Value:
Digital input (DIGITAL INPUT)
[0]
Serial communication (SERIAL PORT)
[1]
Logic and (LOGIC AND)
[2]
★
Logic or (LOGIC OR)
[3]
Function:
In parameters 503 through 508, a choice can be made to control the
drive via the digital inputs and/or by serial communication.
If
Digital input
is selected, the command can only be carried out
through digital input.
If
Serial communication
is selected, the command can only be carried
out through serial communication.
If
Logic and
is selected, the command must be by both serial communi-
cation and a digital input.
If
Logic or
is selected, the command can be made by either digital or
serial communication.
Description of choice:
The tables below show whether the motor is running or coasting when
Digital Input
,
Serial Communication
,
Logic and
or
Logic or
has been
selected.
NOTE
Terminal 27 and bit 03 of control word are active
when logic 0 is selected.
Digital Input
Serial Communication
Serial
Serial
Term. 27 Comm. Function Term. 27 Comm.
Function
0
0
Coasting
0
0
Coasting
0
1
Coasting
0
1
Motor run
1
0
Motor run
1
0
Coasting
1
1
Motor run
1
1
Motor run
Logic and
Logic or
Serial
Serial
Term. 27 Comm. Function Term. 27 Comm.
Function
0
0
Coasting
0
0
Coasting
0
1
Motor run
0
1
Coasting
1
0
Motor run
1
0
Coasting
1
1
Motor run
1
1
Motor run
✭
I
ndicates factory default setting. Numbers in brackets [ ] represent selection as displayed on the serial bus.
