Troubleshooting; Display And Countermeasure When An Error Occurred - NSD Absocoder NCV-40H Series Specifications & Instruction Manual

10. TROUBLESHOOTING

The causes and corrective actions for errors that may occur during NCV-40H operation are described below.

10-1. Display and Countermeasure when an Error Occurred

NCV-40H has LED for the error monitor. Error contents can be checked by the status of the LED light after
the toggle switch for the monitor LED is switched to "B".
Refer to the following list and implement appropriate countermeasures.
● Lists of the error monitors, probable causes, and error cancel procedures
Error
Name
monitor
Sensor
"SE" LED
disconnected
is ON
error
"SE" LED Sensor power
is blinking supply error
"ME" LED
Memory error
is ON
"PF" LED Low power
is ON error
"SWE" LED Switch setting
is ON error
All LED
－
is OFF
*1: If the clearing method of the sensor disconnected error is set to "auto clearing", the error will be cleared
automatically when removing the cause of the sensor disconnected error.
Probable cause
Sensor connector is disconnected or
loose
Sensor cable is severed.
ABSOCODER sensor failure
Converter failure
The power supply inside of the converter
for sensor is broken down.
Memory data has been changed due to
external noise, etc.
Voltage drop of 24VDC power supply
Instantaneous power failure of 24VDC
power supply
The function setting switch is wrong.
Voltage drop of 24VDC power supply
Converter failure
Error cancel procedures
After removing an error cause, clear the error by
either way:
- Press CLR button.
- Input the error clear signal from external.
Replace the sensor cable.
For more details, refer to "10-3".
Replace the ABSOCODER sensor.
For more details, refer to "10-3".
Replace the converter.
For more details, refer to "10-3".
Replace the converter.
For more details, refer to "10-3".
After moving the machine to zero point,
clear the error by either way:
- Press ZPS button.
- Input the zero point setting signal from external.
After removing an error cause, clear the error by
either way:
- Press CLR button.
- Input the error clear signal from external.
- Turn the power OFF and then ON again.
Correct the dip switch setting, and turn the power
OFF and then ON again.
Check whether the power voltage is normal or not.
Replace the converter.
For more details, refer to "10-3".
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