WEG CFW-09 User Manual page 281

CHAPTER 8 - CFW-09 OPTIONS AND ACCESSORIES
282
Line Termination
The initial and the en points of the network must be terminated with the
characteristic impedance in order to prevent reflections. The DB 9 cable male
connector has the suitable termination. When the inverter is the first or the
last of the network, the termination switch must be set to Pos. "ON". Otherwise
set the switch to Pos. "OFF". The terminating switch of the PROFIBUS DP
board must be set to 1 (OFF).
Transfer Rate (baud rate)
The transfer rate of a Profibus DP network is defined during the master
configuration and only one rate is permitted in the same network. The Profibus
DP board has automatic baud rate detection and the user does not need to
configure it on the board. The supported baud rates are: 9.6 kbits/s, 19.2 kbits/
s, 45.45 kbits/s, 93.75 kbits/s, 187.5 kbits/s, 500 kbits/s, 1.5 Mbits/s, 3 Mbits/
s, 6 Mbits/s and 12 Mbits/s.
Node Address
The node address is established by means of two rotating switches on the
electronic Profibus DP board, permitting the addressing from 1 to 99 addresses.
Looking onto the front view of the board with the inverter in normal position,
the switch at left sets the ten of the address, while the left switch sets the unit
of the address:
Address = (set left rotary switch x 10) + (set right rotary switch x 1)
NOTE!
The node address can not be changed during operation.
Configuration File (GSD File)
Each element of a Profibus DP network is associated to a GSD file that has
all information about the element. This file is used by program of the network
configuration. Use the file with the extension .gsd stored on the floppy disk
contained in the Fieldbus kit.
Signaling
The electronic board has a bicolor LED at right underside indicating the status
of the Fieldbus according to the table 8.16 and figure 8.40 below:
Frequency
Color LED
2 Hz
Red
2 Hz
Green
1 Hz
Green
1 Hz
Red
4 Hz
Red
Table 8.16 - Signaling LED of the Fieldbus board status
NOTE!
The red fault indications mean hardware problems of the electronic board. The
reset is realized by switching OFF / ON the inverter. If the problem persists,
replace the electronic board.
The electronic board is also fitted with four other bicolor LEDs placed at the
right bottom side, indicating the Fieldbus status according to the figure below:
Status
Fault during the test of the ASIC and Flash ROM
Board has not been initialized
Board has been initialized and is operating
Fault during the RAM test
Fault during the DPRAM test