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50 Rockwell Automation Publication 150-QS003D-EN-P - November 2013
Chapter 4 Operation and Troubleshooting
Table 23 - LED Error Code with Respective Fault/Alarm Source
➊ The Fault/Alarm code, available from a HIM or configuration software, provides more detailed information
concerning the source of the fault/alarm. Fault and alarm codes for the same event (e.g., Line Loss) are the
same.
Troubleshooting with
Monitoring Equipment
The SMC-50 controller has built-in detailed diagnostics fault codes and metering
functions. These fault codes and metering functions can be accessed through a
local 20-HIM-A6 or remote 20-HIM-C6S module or by using a Rockwell
Automation Drive Software package such as Connected Component
Work ben ch .
Troubleshooting By Fault
Code — Abbreviated
Listing
The following table contains an abbreviated listing of fault codes available. For a
complete troubleshooting list, fault codes, and tips, See the SMC-50 User
Manual.
LED
Error Code
Fault/Alarm
Source
Referenced HIM/
Configuration
Software Code ➊
LED
Error Code
Fault/Alarm
Source
Referenced HIM/
Configuration
Software Code ➊
Red = SMC
1
Line Loss
A 1
5
HAL ID 33
B 2 NVS Error 34
C 3 V24 Recovery 35
Shorted
SCR
A 4 V24 Loss 36
B 5 V Control Loss 37
C 6 RTC Battery Low 69
2 Open Gate
A 7 System Faults 100-199
B8
6
Terminal
Block
Input
1 38
C9
2 39
3
SCR Overtemp 10 3 40
Pwr Pole PTC 60 4 41
4 CT Loss
A30
Test Fault 62
B31
7 Open Bypass
A11
C32
B12
C13
Yellow = Motor
2
No Load 14 4 Overload 21
Open Load
A 15 5 Stall 24
B 16 6 Phase Reversal 25
C 17
7
Current
Imbalance
42
3 Volt Imbalance 18