Chapter 5
5-31
Remote I/O Functions
■ Bit and Data Details
● Input Bit Details
● Input Data Details (Inverter Detected Fault Code)
When an fault has occurred in the Inverter, the fault code will be reported in bits 0 to 6 of the leftmost
byte. At the same time, the error flag will be turned ON.
The following table lists the fault codes and corresponding faults.
Name Function
Network power volt-
age drop flag
0: Normal The network power supply voltage is higher than the preset threshold
voltage (present value > threshold value).
1: Fault The network power supply voltage is less than or equal to the preset
threshold voltage (present value
≤ threshold value).
Inverter unit mainte-
nance flag
0: Normal The Inverter’s operating time is less than the preset threshold voltage
(operating time < threshold value).
1: Fault The Inverter’s operating time is greater than or equal to the preset thresh-
old voltage (operating time
≥ threshold value).
Cooling fan/electro-
lytic capacitor mainte-
nance flag
0: Normal The operating time of either the fan or the electrolytic capacitor is less
than the preset threshold voltage (operating time < threshold value).
1: Fault The operating time of either the fan or the electrolytic capacitor is greater
than or equal to the preset threshold voltage (operating time
≥ threshold
value).
Warning torque
detected flag
0: Normal The output torque is less than the preset threshold voltage (output cur-
rent < threshold value).
1: Fault The output torque is greater than or equal to the preset threshold voltage
(output current
≥ threshold value).
Operation time over
flag
0: Normal The operating time is less than the preset threshold voltage (operating
time < threshold value).
1: Fault The operating time is greater than or equal to the preset threshold volt-
age (operating time
≥ threshold value).
Connected compo-
nent maintenance flag
0: Normal The value monitored by the “cumulative ON time monitor function” or
“number of contact operations monitor function” is less than the preset
threshold voltage (maintenance counter < threshold value).
1: Fault The value monitored by the “cumulative ON time monitor function” or
“number of contact operations monitor function” is greater than or equal
to the preset threshold voltage (maintenance counter
≥ threshold value).
Error flag 0: Normal A fault is not detected in the Inverter.
1: Fault A fault was detected in the Inverter. (This flag operates together with the
Inverter detected fault code.)
Fault
code
(hex)
Applicable Inverters Operator
display
Meaning
3G3MV 3G3RV
3G3PV
3G3FV
00 Yes Yes Yes Inverter normal
01 --- Yes Yes PUF Fuse open
02 Yes Yes Yes UV1 Undervoltage (main)
03 Yes Yes Yes UV2 Control power supply fault
04 --- Yes Yes UV3 Undervoltage (MC failure in the 3G3RV)
0 5 Ye s - - - Ye s S C S h o r t c i r c u i t
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