User`s guide

186
CHAPTER 8 - CFW-08 OPTIONS AND ACCESSORIES
Theyact as follows:
Theydo not disable the inverter;
Theydo not disable the fault relay;
They inform in the word of logical status (V02).
Fault types:
E22: longitudinal parity fault (BCC);
E24: parametrization fault (when some of the situations
indicated in table 4.1 occur (incompatibility between
parameters) or when there is a parameter change attempt
that can not be changed with the motor running).
E25: variable or parameter not existing;
E26: expected values out of allowed limits;
E27: writing attempt in a read only variable or logical
command disabled;
E28: serial interface watchdog timeout error.
Note:
If a parityfault is detected during inverter data reception, the
message will be ignored. The same happens when syntax
errors occur.
Ex.:
Code values different from the numbers 0 to 9;
Separation character different from “ = “, etc.
8.24.5.4
Errors Related to
the Serial
Communication
8.24.6
Time for Read/Write
of Messages
MASTER
Tx: (data)
RSND (request to send)
INVERTER
TxD:
(data)
t
proc
t
di
t
txi
Times (ms)
T
proc
T
di
T
txi
reading
writing
Typical
10
2
15
3