Yaskawa V7 Drives - Manual (Page 116)

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
EF1: External fault
input command from
control circuit
terminal S1
EF2: External fault input
command from control
circuit terminal S2
EF3: External fault input
command from control
circuit terminal S3
EF4: External fault input
Protective command from control
Operation. circuit terminal S4
Output is EF5: External fault input
shut OFF command from control
and motor circuit terminal S5
coasts to EF6: External fault input
a stop. command from control
circuit terminal S6
EF7: External fault input
command from control
circuit terminal S7
CPF-00 Cycle power after checking
Drive cannot the digital operator is
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.__ for
constant initialization.)
• Cycle power.
If the fault remains,
replace the drive.
Table 6-2. Fault Displays and Corrective Actions - Continued