Fault Detection; Fault Displays And Processing - YASKAWA F7 User Manual

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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.
Digital
Operator Display
Option Communication Error
BUS
After initial communication was
Option Com Err
established, the connection was lost.
Modbus Communication Error
CE
Control data was not received correctly for
Memobus Com Err
two seconds. This fault is detected when
H5-05=1 and H5-04=0 to 2.
Control Fault
CF
A torque limit was reached continuously for
Out of Control
3 seconds or longer during a ramp to stop
while in open-loop vector control.
Operator Communication Fault
Transmission between the Drive and the
Digital Operator was not established within
CPF00
5 seconds after supplying power.
COM-ERR(OP&INV)
External RAM of CPU was defective.
Operator Communication Fault
CPF01
After communication started with the
COM-ERR(OP&INV)
Digital Operator, communication stopped
for 2 seconds or more.
CPF02
Baseblock Circuit Fault
BB Circuit Err
Baseblock circuit fault at power-up.
CPF03
EEPROM Fault
EEPROM Error
Check sum was not valid.
CPF04
CPU Internal A/D Converter Fault
Internal A/D Err
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Table 6.1 Fault Displays and Processing
Description
Diagnostics & Troubleshooting 6 - 2
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Cause
Connection was broken and/or
master controller stopped
communicating.
Connection was broken and/or
master has stopped
communicating.
Motor parameters were not set
properly.
Digital Operator cable was not
securely connected, Digital
Operator defective, and/or
control board defective.
Control circuit was damaged.
Digital Operator cable was not
securely connected, Digital
Operator defective, and/or
control board defective.
Gate array hardware failure
during power-up.
Noise or spike was on the
control circuit input terminals.
Noise or spike was on the
control circuit input terminals.
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Corrective Action
Check all connections and verify
all user-side software
configurations.
Check all connections and verify
all user-side software
configurations.
Check motor parameters.
Perform Auto-Tuning.
Remove the Digital Operator, and
then reinstall it.
Cycle power to the Drive.
Replace the control board.
Remove the Digital Operator
once and then reinstall it.
Cycle power to the Drive.
Replace the Digital Operator and/
or the control board.
Perform a factory initialization.
Cycle power to the Drive.
Replace the control board.
Perform factory initialization.
Cycle power to the Drive.
Replace the control board.
Perform factory initialization.
Cycle power to the Drive.
Replace the control board.