Instruction manual

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7. TROUBLESHOOTING
7.4 Detailed Explanation of Linear Encoder Error 1 (2A)
If the cause of Linear encoder error 1(2A) occurrence is not identified, confirm the details shown on the
following table according to the alarm detailed information for the alarm history display of MR Configurator, and
then contact with the linear encoder manufacturer.
Table 7.1 Detailed explanation of linear encoder error 1 (2A) for each manufacturer
Linear Encoder Error 1 (2A) Details
Detail
Information Bit
Mitutoyo
Sony Manufacturing
Systems Corporation
Heidenhain Renishaw
Bit7 Optical overspeed Overspeed error
Bit6 ROM RAM error Overspeed
Bit5 EEPROM error Encoder alarm EEPROM error
Bit4 CPU error CPU error
Bit3 Capacitive error ABS data error
Bit2 Photoelectric error INC data error
Bit1
Photoelectric
capacitive
data mismatch
Encoder warning
Scale level error
INC/ABS data mismatch error
Level error
Bit0 Initialization error Initialization error
As an example, the following describes the detailed information when Linear encoder error 1(2A) occurs in the
linear encoder AT343A manufactured by MITUTOYO CORPORATION.
A
larm details : 44h
In this case, the alarm detailed information of Linear encoder error 1(2A) is "44". This numeral is indicated in
hexadecimal number. Convert "44" of hexadecimal number to a binary-coded form as shown below.
The digits for bit6 and bit2 are "1". Check the details of the bit being "1" in Table 7.1. In this case, the
occurrences of ROM
RAM error (bit6) and Photoelectric error (bit2) are identified.
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
44h = 0 1 0 0 0 1 0 0