9-5
9-2 Countermeasures to Clear Error
AL.001 Power Supply Voltage Too Low CiA402 Error Code 0x3220-04-0001
Alarm Cause
Primary circuit input power voltage is smaller than the setting value of Cn051 (low
voltage protection level) and exceeds the time of Cn052 (low voltage protection
alarm delay time).
Input voltage of 200V driver is smaller than 170V and the one
of 400 driver is smaller than 340V. Generate alarm directly without counting time.
1. Primary circuit input voltage lower than specification; input power error; no
primary circuit input power.
2. Sudden power outage occurs.
3. Power voltage decreases under operation.
4. Driver hardware failure.
Check and
Handling
1. Use an Electric Meter to measure the external power supply voltage and verify
that the input voltage meets the specifications. Monitor if the voltage of Un-10
primary circuit (VDC Bus) is correct; if external input correct is correct ((AC
220/380V)) and Un-10 value too low (far lower than DC 310/620V), it could be
the failure of driver internal component.
2. When the external power is comparatively unstable, users can adjust Cn051 &
Cn052 to improve.
3. When power voltage decreases under operation, please make sure the input
power can offer stable power constantly.
4. Pleasesend the device back to the distributor or manufacturer for overhaul.
Alarm Clearing
Method
According to Parameter Cn031.1 Low Voltage Protection (AL001) Automatic Reset
Selection
AL.002 Power Supply Voltage Too High CiA402 Error Code 0x3210-04-0002
Alarm Cause
VDC Bus power voltage higher than DC 410/820V (based on driver voltage class
200/400V).
1. Primary circuit input voltage over specification; primary circuit power input
error.
2. Unstable power or effected by factors such as lightning.
3. Error occurs under operation conditions; acceleration/deceleration executed by
the device is over spec.
4. Error occurs under operation conditions; the used regenerative resistance cannot
meet operation conditions.
5. Driver hardware failure.
Check and
Handling
1. Use power meter to measure external power voltage and confirm if the input
voltage is qualified. Please apply correct voltage source or connect voltage
stabilizer serially when monitoring Un-10 primary circuit (VDC Bus) voltage
exceeds DC 410/820V continuously.
2. Improve power status; reboot servo driver after devices like surge suppressor is
installed. If the alarm still occurs, it may indicate the servo driver fail to work
correctly. Replace the Servo Driver.
3. Extend the Acceleration / Deceleration Time or reduce the Load Inertia within
the permitted range.
4. Review the regenerative resistance by considering operation condition and load
and set Cn012 (external regenerative resistor power setting) correctly.
5. Pleasesend the device back to the distributor or manufacturer for overhaul.
Alarm Clearing
Method
Switch Reset
To Next Page
Loading...
