Yaskawa J7 Drive - Manual (Page 79)

6-6
Fault Display
Digital RUN (Green)
Drive
Explanation
Causes and
Operator ALARM (Red)
Status Corrective Actions
EF Check the external circuit
(External fault) (sequence).
Drive receives an
external fault input from
control circuit terminal.
EF0: External fault
reference through
MODBUS
communications
EF2: External fault input
command from control
circuit terminal S2
EF3: External fault input
command from control
circuit terminal S3
EF4: External fault input
command from control
Protective
circuit terminal S4
Operation.
EF5: External fault input
Output is
command from control
shut OFF
circuit terminal S5
and motor CPF-00 Cycle power after checking
coasts to Drive cannot the digital operator is
a stop. communicate with the digital securely mounted.
operator for 5 sec. or If the fault remains,
more when power is replace the digital operator
turned ON. or drive.
CPF-01 Cycle power after checking
Transmission fault the digital operator is
occurred for 5 sec or more securely mounted.
when transmission starts If the fault remains,
with the digital operator. replace the digital operator
or drive.
CPF-04 • Record all parameter
EEPROM fault of drive data and initialize the
control circuit is detected. constants. (Refer to
paragraph 5.20 for
parameter initialization.)
• Cycle power.
If the fault remains,
replace the drive.
Table 6-2. Fault Displays and Corrective Actions - Continued