Instruction manual

88
Details of Troubleshooting
• Causes related to serial communication through GOT
• Causes related to USB communication
• Causes related to USB communication via GOT
Cause Measures
Related
Parameters
Parameter setting for PU connector
communication is not an appropriate value.
(1) Check that the correct station number is set for PU communication
station number (Pr. 117) . When multiple inverters are connected, set
a different station number for each inverter.
(2) Set 3s or more, or "9999" in PU communication check time interval
(Pr. 122) .
(3) Set "0" in PU communication waiting time setting (Pr. 123) .
(4) Select [O
ptions] in [Tool] menu, and click [Communication] tab on
the option window. Check that the "C
ommunication Speed", "Stop
Bit", "Delimit
er", and "Parity" settings are the same as the parameter
setting for PU connector communication (Pr. 118, 119, 120, 124).
(5) Select [O
ptions] in [Tool] menu. Click [Communication] tab on the
option window and press [Advanced]. Increase the value of
"T
imeout" and "Retry Count".
(6) Set "0" in protocol selection (Pr. 549) .
Pr. 117, 118, 119,
120, 121, 122, 123,
124, 549
Parameter setting for RS-485 terminal
communication is not an appropriate value.
(1) Check that the correct station number is set for RS-485
communication station number (Pr. 331) . When multiple inverters
are connected, set a different station number for each inverter.
(2) Set 3s or more, or "9999" in RS-485 communication check time
interval(Pr. 336) .
(3) Set "0" in RS-485 communication waiting time setting (Pr. 337) .
(4) Select [O
ptions] in [Tool] menu, and click [Communication] tab on
the option window. Check that the "Communication speed", "S
top
Bit", "Delimit
er", and "Parity" settings are the same as the parameter
setting for RS-485 terminal communication (Pr. 332, 333, 334, 341).
(5) Select [O
ptions] in [Tool] menu. Click [Communication] tab on the
option window and press [Ad
vanced]. Increase the value of
"T
imeOut" and "Retry Count".
(6) Set "0" in protocol selection(Pr. 549) .
Pr. 331, 332, 333,
334, 335, 336, 337,
341, 549
Cause Measures
Related
Parameters
Communication port setting of the FR
Configurator SW3 is not an appropriate
value.
Select [O
ptions] in [Tool] menu. Select [Communication] tab on the
option window and check the following items.
(1) Check "USB" is selected for "PC Side Po
rt".
(2) Check that the "Th
rough" setting is "None".
-
Parameter setting for USB connector
communication is not an appropriate value.
(1) Check that the correct station number is set for USB communication
station number (Pr. 547) . When multiple inverters are connected, set
a different station number for each inverter.
(2) Set 3s or more, or "9999" in USB communication check time
interval (Pr. 548).
Pr. 547, 548
Cause Measures
Related
Parameters
Communication port setting of the FR
Configurator SW3 is not an appropriate
value.
Select [O
ptions] in [Tool] menu. Click [Communication] tab on the option
window and check the following items.
(1) Check "USB" is selected for "PC Side Po
rt".
(2) Check that the "Th
rough" setting is "GOT".
-