Lenze i550

12.12.5 Diagnoscs
12.12.5.1 LED status display
Informaon on the Modbus status can be obtained quickly via the "COMM" and "ERR" LED
displays on the front of the inverter.
The meaning can be seen from the tables below.
Inverter not acve on the Modbus bus (yet)
LED "COMM" LED "ERR" Meaning
o on
Internal error
Both LEDs are ickering alternately
Automac detecon of baud rate and data format acve.
Inverter acve on the Modbus
The green "COMM" LED indicates the communicaon status:
LED "COMM" Communicaon status
o No recepon / no transmission
on
Recepon / transmission acve
The red "ERR" LED indicates an error:
LED "ERR" Fault
o No fault
blinking
Communicaon error
12.12.5.2 Informaon on the network
The following parameters serve to diagnose the communicaon acvies between the inver-
ter and the Modbus network.
The following parameters show informaon on the network.
Parameter
Address Name / seng range / [default seng] Info
0x2322:001
(P511.01)
Acve Modbus sengs: Acve node ID
(Modbus diag.: Acve node ID)
•
Read only
Display of the acve node address.
0x2322:002
(P511.02)
Acve Modbus sengs: Acve baud rate
(Modbus diag.: Acve baud rate)
•
Read only
Display of the acve baud rate.
0 Automac Oponally seng of the baud rate (instead of seng via DIP switch b).
•
The baud rate set here is only eecve if DIP switch b was set to ON
before mains switching. Otherwise automac baud rate detecon is
acve.
•
A change in the baud rate only becomes eecve aer a restart of
Modbus communicaon.
•
If the automac baud rate detecon funcon is acvated, the rst
5 ... 10 messages are lost aer switch-on.
1 2400 bps
2 4800 bps
3 9600 bps
4 19200 bps
5 38400 bps
6 57600 bps
7 115200 bps
0x2322:003
(P511.03)
Acve Modbus sengs: Data format
(Modbus diag.: Data format)
•
Read only
Display of the acve data format.
0 Automac Automac data format detecon.
•
With this seng, the rst 5 ... 10 messages are lost aer switch-on.
1 8, E, 1 8 data bits, even parity, 1 stop bit
2 8, O, 1 8 data bits, odd parity, 1 stop bit
3 8, N, 2 8 data bits, no parity bit, 2 stop bits
4 8, N, 1 8 data bits, no parity bit, 1 stop bit
Conguring the network
Modbus RTU
Diagnoscs
421