Control Techniques COMMANDER SE, Руководство для продвинутых пользователей

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Commander SE Advanced User Guide
85
Issue Number: 4
When customer defined units are selected as the display units, this parameter is used to scale the RPM parameter ( 5.04 ) to
give the displayed units. See parameter 5.34 .
When customer defined units are used, parameter 11.21 will only scale a maximum rpm value of 9999. If the motor
speed is greater than 9999, theis cannot be scaled correctly.
Decides which parameter is displayed at power-up, either the speed (0) or the load (1). This parameter is written to
automatically when the user switches between speed and load indications in parameter status mode. In this case the
parameter is saved automatically by the drive, if the user changes this parameter using serial communications it is not saved
automatically.
*Units: Group.Unit
Used to define the unique address for the drive for the serial interface. Any number in the permitted range 0.0 to 24.7 which
has a zero in it should not be used as these are used in addressing groups of drives.
This is the mode of operation of the serial port.
0 A
n
SI ANSI protocol half duplex serial communications 2 wire.
1 rtu Modbus RTU protocol.
2 F.bUS Fieldbus comms mode.
For information on ANSI and Modbus RTU protocols, see Chapter 1 Serial Communications . For information on Fieldbus
options, contact your local Drive Centre or Distributor.
When in the F.bUS mode the drive address and baud rate are unaffected by parameters
11.23 and 11.25 . Instead the drive
address is fixed at address 11 and a baudrate of 19.2kbaud. Also this setting makes two further parameters available in level
2,
0.45 and 0.46 to adjust the high speed comms node address and baudrate.
Used to select the comms port baud rate. Four available options are:
0 2.4 2,400 baud
1 4.8 4,800 baud.
2 9.6 9,600 baud.
3 19.2 19,200 baud.
Used in ANSI comms mode to define the minimum time before the drive will enable its transmit buffers and transmit data in
response to a message from the host. This is to allow the host software to have time to disable its own transmit buffers after
transmitting data to the drive. Note also that the drive holds its transmit buffers on for up to 1.5ms after it has transmitted the
last character and therefore the host must not start transmitting a new message until this period has elapsed.
11.01~
11.20
Unused parameters
11.21 Parameter scaling
Ú
0.00 ~ 99.99
Ö
1.00 RW Uni
11.22 Parameter displayed at power up select
Ú
0 or 1
Ö
0 RW Bit
11.23 Serial comms address
Ú
0.0 ~ 24.7
Ö
1.1
*
RW Uni
11.24 Serial comms modes
Ú
0 ~ 2
Ö
0 RW Uni R
11.25 Serial comms baud rate
Ú
0 ~ 3
Ö
1 (4.8)
*
RW Uni Txt
11.26 Serial comms minimum transmit delay
Ú
0 ~ 250
Ö
20 ms RW Uni
NOTE