Plc Interface; Classification Of The Error Code - Mitsubishi Electric C80 series Maintenance Manual

C80 Series Maintenance Manual
9 Appx.3: Outputting the Error Code
9Appx.3: Outputting the Error Code
This function is to output the information of alarm which is occurring in the CNC CPU. The information is output in the form
of 4-digit hexadecimal error code.
The uniform 4-digit codes express all the alarms.
The error codes are output to the PLC I/F. Thus they can be acquired through a sequence program.
The error codes are displayed on the dot matrix on the front panel of the CNC CPU module.
If you perform CNC CPU module diagnosis using "GX Works3", an engineering tool for PLC, these error codes can be dis-
played along with the details for those error codes.

9.1 PLC Interface

Signal name Abbreviation
Error code
[Function]
This signal outputs the alarm occurring in NCCPU with a code in four hexadecimal digits.
[Operation]
Each part system has the R register that stores one set of error code.
The register in which no errors are stored is set to "0".
The error code which is common for part systems is stored in the 1st part system.

9.2 Classification of the Error Code

The error codes are classified as shown in the table below:
The major error stops the operations of all the CPUs including the CPU No.1.
The moderate error requires the setting which does not stop the operation. When setting the system parameters for the
CPU No.1, go to [Multiple CPU Setting] - [Operation Mode Setting] and make sure to set the stop setting for CNC CPU as
"Major: All Station Stop, Moderate: All Station Continue". If the setting is different, a "multi-CPU error" will occur.
Class Range of the Error Code
Minor
Moderate
Major
IB-1501454-C
1st part 2nd part
system system
R573 R773
A minor alarm except for the moderate/major alarms.
1000 to 1FFF
Some servo alarms which can be canceled by the NC reset.
Servo and other alarms which cause emergency stop and are
2000 to 3BFF
canceled by the power OFF/ON.
3C00 to 3FFF An alarm which includes a severe cause such as H/W failure.
110
3rd part 4th part 5th part
system system system
R973 R1173 R1373
Meaning of classification
6th part 7th part
system system
R1573 R1773