Yaskawa YASNAC PC NC Maintenance Manual - Manual (Page 176)

The VS-626M5 PC NC Maintenance Manual
4-155
Control circuit I/O
fault 1 Data transmission error
between CPUs. Replace the control PC board. _›_›_œ_›
Control circuit I/O
fault 2 _›_›_œ_›
Control circuit I/O
fault 3 _›_›_œ_›
Motor code
selection error Selected motor code (C1-25)
does not match inverter
capacity (C1-56). Check motor model, motor code
(C1-25), inverter model and
inverter capacity selection (C1-
56). _›_›_›_œ
Motor code
unrecorded Motor code set in C1-25 is not
recorded. Check motor model and motor
code (C1-25).
Check setting list for correct
PROM version of motor code
(C1-25). _›_›_›_œ
Constant setting
range error Memory (EEPROM) data
exceeded upper/lower limit. Check that rated speed (C1-26)
is within setting range.
Check control constants.
Replace the control PC board. _›_›_›_œ
Orientation card
mismatch Selected orientation bit does
not match orientation card. Check orientation card model
and orientation selection signal
(bit 0 of C1-39).
Replace the orientation card. _›_›_›_œ
Inverter capacity
selection error Selected inverter capacity
(C1-56) does not match the
unit. Check inverter model and
inverter capacity selection (C1-
56). _›_›_›_œ
ROM error Memory (PROM) error Replace the control PC board. _›_›_›_›
EEPROM error 1 Memory (EEPROM) error _›_›_›_›
EEPROM error 2 _›_›_›_›
EEPROM error 3 _›_›_›_›
EEPROM error 4 _›_›_›_›
Control circuit fault
1 (operator trans-
mission
error) Transmission between the
inverter and the digital opera-
tor cannot be established until
5 seconds after supplying
power. Built-in memory fault,
WDT activated. Insert the digital operator con-
nector again.
Check the wiring of power sup-
ply signal line of 1CN.
Replace the control PC board. _\
Control circuit fault
2 (operator trans-
mission
error) Transmission between the
inverter and the digital opera-
tor is established once after
supplying power, but later
transmission fault continues
for more than 2 seconds.
WDT time exceeded. _\
Table 4.37: Fault Diagnosis and Inverter Corrective Actions (Continued)
Fault Number Name Contents Corrective Action Fault Code