0799

Common Causes

• Linear scale 1 (MITUTOYO) internal alarm: over speed, EEPROM, CPU, electric capacity, photo electron, digit match, or initialize error
• Communication error between the scale and the control, or MITUTOYO scale no response / ID error
• Gateway receive error or REQ time over in the scale interface

Troubleshooting Steps

1. 1Read the code number shown with the alarm: code XX bit7 = Scale alarm active; code XX bit6/bit2 = Communication error (bit2: every detection); code XX=88, YY bits = bit7 over speed, bit6 communication error, bit5 EEPROM error, bit4 CPU error, bit3 electric capacity error, bit2 photo electron error, bit1 digit match error, bit0 initialize error; code XX=80, YY=43/44 = MITUTOYO scale no response / scale ID error; code XX=C0, YY = 00-3F gateway receive error, 46 REQ time over error; code ZZZZ = Linear scale 1 position data per 2 mm pitch
2. 2Read the code: XX is the linear scale 1 status (bit7 alarm, bit6 communication error, bit2 communication error every detection, bit0 alarm code distinction), YY is the error detail, ZZZZ is the scale position data per 2 mm pitch.
3. 3For XX=88, decode YY bits: over speed, communication error, EEPROM error, CPU error, electric capacity error, photo electron error, digit match error, initialize error; each points inside the MITUTOYO scale.
4. 4For XX=80, YY=43 means MITUTOYO scale no response and 44 means scale ID error; check the scale wiring and connectors first.
5. 5For XX=C0, YY 00-3F is a gateway receive error and 46 is a REQ time over error; check the gateway/interface between scale and control.
6. 6Clean the scale tape and readhead, verify the cable, and if the error persists the corrective action is to change linear scale 1 as the manual directs.