Yaskawa F7 Drive User Manual - Manual (Page 127)

Diagnostics & Troubleshooting 6 - 2
Fault Detection
When the Drive detects a fault, the fault information is displayed on the Digital Operator, the fault contact closes, and the
motor coasts to stop. (However, a fault with selectable stopping method will operate according to the stopping method
selected.)
• If a fault occurs, take appropriate action according to the table by investigating the cause.
• To restart, reset the fault with any of the following procedures:
•Set “14: Fault Reset” to a multi-function digital input (H1-01 to H1-06). Then, close and open the input.
•Press the RESET key of the Digital Operator.
•Shut off the Drive input power, and then turn on again.
Table 6.1 Fault Displays and Processing
Digital
Operator Display
Description Cause Corrective Action
BUS
Option Com Err
Option Communication Error
After initial communication was
established, the connection was lost. Connection was broken and/or
master controller stopped
communicating. Check all connections and verify
all user-side software
configurations.
CE
Memobus Com Err
Modbus Communication Error
Control data was not received correctly for
two seconds. This fault is detected when
H5-05=1 and H5-04=0 to 2.
Connection was broken and/or
master has stopped
communicating. Check all connections and verify
all user-side software
configurations.
CF
Out of Control
Control Fault
A torque limit was reached continuously for
3 seconds or longer during a ramp to stop
while in open-loop vector control.
Motor parameters were not set
properly. Check motor parameters.
Perform Auto-Tuning.
CPF00
COM-ERR(OP&INV)
Operator Communication Fault
Transmission between the Drive and the
Digital Operator was not established within
5 seconds after supplying power. Digital Operator cable was not
securely connected, Digital
Operator defective, and/or
control board defective
.
Remove the Digital Operator, and
then reinstall it.
External RAM of CPU was defective. Control circuit was damaged.
Cycle power to the Drive.
Replace the control board.
CPF01
COM-ERR(OP&INV)
Operator Communication Fault
After communication started with the
Digital Operator, communication stopped
for 2 seconds or more. Digital Operator cable was not
securely connected, Digital
Operator defective, and/or
control board defective.
Remove the Digital Operator
once and then reinstall it.
Cycle power to the Drive.
Replace the Digital Operator and/
or the control board.
CPF02
BB Circuit Err
Baseblock Circuit Fault
Baseblock circuit fault at power-up. Gate array hardware failure
during power-up.
Perform a factory initialization .
Cycle power to the Drive.
Replace the control board.
CPF03
EEPROM Error
EEPROM Fault
Check sum was not valid. Noise or spike was on the
control circuit input terminals.
Perform factory initialization.
Cycle power to the Drive.
Replace the control board.
CPF04
Internal A/D Err
CPU Internal A/D Converter Fault
Noise or spike was on the
control circuit input terminals.
Perform factory initialization.
Cycle power to the Drive.
Replace the control board.