Scale Error (Al. 2A) Details Classified By Linear Scale Manufacturer - Mitsubishi Melservo-J2-Super series Instruction Manual

6. TROUBLESHOOTING

6.2 Scale error (AL. 2A) details classified by linear scale manufacturer

When the occurrence cause of alarm 2A is unknown, contact the linear scale manufacturer after
confirming the scale error details in the following table on the basis of the alarm detail information of the
alarm history display on the MR Configurator.
Detail
Information Bit
Bit7 Optical overspeed
Bit6 ROM RAM error
Bit5 EEPROM error
Bit4
Bit3 Capacitive error
Bit2 Photoelectric error
Photoelectric capacitive
Bit1
data mismatch
Bit0 Initialization error
Example in which alarm 2A occurred on Mitutoyo make linear scale AT343A
When the alarm detail information of alarm 2A is 44h, bit 6 and bit 2 are on as indicated below,
indicating that the ROM RAM error and photoelectric error occurred.
Use this information when contacting the scale manufacturer.
bit7 bit6
44h = 0 1
Mitutoyo Sony Precision Technology
Encoder alarm
CPU error
Encoder warning
bit5 bit4 bit3
0 0 0
4
Scale Error (Alarm 2A) Details
Heidenhain
Overspeed error
EEPROM error
CPU error
ABS data error
INC data error
Scale level error
INC/ABS data mismatch error
Initialization error
bit2 bit1 bit0
1 0 0
4
6 - 2
Renishaw
Overspeed
Level error
Alarm details : 44h