Rockwell Automation Allen-Bradley 842E-CM, User Manual

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50 Rockwell Automation Publication 842E-UM002A-EN-P - November 2013
Chapter 6 Diagnostics and Troubleshooting
Table 2 - Encoder Fault Code Summary
Position AxisFaultSubCode Description Hex value Decimal
value
1 Over temperature sensor Temperature value of the sensor is out of
range 0x1E 30
2 Light control reserve LED current is incorrect 0x1D
0x2C 29
44
3 Frequency exceeded Speed too high
(limit exceeded) 0x1F 31
4 Position error Amplitude error Single 0x01 1
5 Position error Amplitude error Multi 0x21 33
6 Position error Vector length single
Vector length (Sin² + cos²) 0x1C 28
7 Position error Vector length multi
Vector length (Sin² + cos²) 0x23 35
8 Position error LY Digital Random Error and LY MFP5
Error
(single position) 0x20
0x2A 32
42
9 Position error Position Multi turn error,
synchronization
(MA-Single, Init) 0x22
0x2B 34
43
10 Position error Position Multi turn error, internal
Interface 0x25 37
11 Position error SSI Failure - internal communication
interface 0xFF 255
12 Startup error Startup error 0x18
0x02 24
2
13 Position or Memory error Memory or EEPROM CheckSum error 0x06 6
14 Memory error Memory or EEPROM
I2C error 0x05 5
15 Diagnostic error This Flag is set if the encoder detects a
diagnostic error. 0x2F 47
Fault code type Description
NODE FLTxx Exceptions that prevent normal operation of the encoder.
NODE ALARM xx Exceptions that prevent normal operation of the encoder, but do not result in any
action other than reporting the alarm to the controller.
INHIBIT Mxx Exceptions that prevent normal operation and indicate whenever the encoder is
active.