YASKAWA FS100 Maintenance Manual page 166

Alarm Alarm Name Sub
Number Code
1674 CTRL LAW SWITCHING
ORDER ERROR (SV)
1684 INSTANT POWER
FAILURE
(TRQ)(SV)
1685 INSTANT POWER
FAILURE
(TIME)(SV)
1686 POS.DEVITATION
SATURATING ERROR
(SV)
1689 Amplifier board not
installed
Meaning Cause
Sub code: specifies the axis that Servo control board failure
alarm occurred.
The instant power failure occurred Voltage failure
and then the torque was
saturated.
Power failure
The instant power failure occurred Voltage failure
for longer than the certain time
period.
Power failure
Setting error
Connection failure
Connection failure
Module failure
Servo control board failure
Module failure
(amplifier)
Sub Code: Signifies the axis in Setting error
which the alarm occurred
Module failure (amplifier)
Servo control board failure
Remedy
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace controller. Save the CMOS.BIN before
replace controller to be safe.
Check if the primary power supply voltage is dropping.
Check if the instant power failure has occurred.
Check if the primary power supply voltage is dropping.
Check if the instant power failure has occurred.
Check the settings for manipulator motion condition (influence by external
force, load condition).
Check if a ground fault has not occurred in the U-, V-, and W-phase of motor
power line, or short circuit has not occurred between these phases.
Check the connection of motor power line.
(motor) (1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the motor.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace controller. Save the CMOS.BIN before
replace controller to be safe.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace controller. Save the CMOS.BIN before
replace controller to be safe.
(1)Check the following settings.
Check if the amplifier module is correctly mounted.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the controller. Save the CMOS.BIN before
replacement to be safe.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the controller. Save the CMOS.BIN before
replacement to be safe.
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