MEMORY ERROR (SENSOR MON COND FILE) indicates data error or main CPU board failure. The manual's first action is: “(1)Reset the alarm. (2)If the alarm occurs again, initialize the sensor monitoring condition file in maintenance mode, and then load the sensor monitoring condition file saved in the external memory device.”
- Model
- Yaskawa FS100
- Display shows
- MEMORY ERROR (SENSOR MON COND FILE) (4028)
- Type
- Alarm code
- Source
- Manual p. 156
What 4028 means
MEMORY ERROR (SENSOR MON COND FILE) p. 156
Common causes
What to do
- (1)Reset the alarm. (2)If the alarm occurs again, initialize the sensor monitoring condition file in maintenance mode, and then load the sensor monitoring condition file saved in the external memory device. p. 156
- (1)Reset the alarm. (2)If the alarm occurs again, replace controller. Save the CMOS.BIN before replace controller to be safe. p. 156
If 4028 is still not resolved
The manual gives no further instruction for this code. Open the code table in the PDF or contact Yaskawa service.
This page summarises what the manufacturer’s manual says about 4028; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Yaskawa. Found a mistake? Report an error.
