Allen-Bradley SMC-50 Quick Start Manual page 35

Display Fault HIM or
Software
Fault Code
Line Power Quality 52, 53, 54
with Phase
Indication
Ground Fault x058
(See Table 16)
Motor PTC 59
Enabled Possible Causes
Start or • Incoming 3-phase voltage instability or
Stop distortion
• High impedance connection
Running • Ground fault current level has exceeded
programmed value
• The delay time is too short for the
application
Running • Motor ventilation blocked
• Motor duty cycle exceeded
• PTC open or shorted
In Table 15, HIM or software fault codes that begin with "x" are based on
values that are automatically entered by the controller. The letter "x" denotes
the individual port assignment values, as shown in
Table 16 - Port Assignment
Port Number
0
1
2 or 3
4
7, 8, 9
Rockwell Automation Publication 150-QS003E-EN-P - April 2017
Operation and Troubleshooting
Possible Solutions
• Check supply voltage for capability to start/stop motor; check for loose
connections on the line side or motor side of the power wires
• Verify and correct the input power quality
• Check power system and motor; correct if necessary. Check
programmed ground fault levels to match application requirements
• Extend the delay time to match the application requirements
• Check for proper ventilation
• Check application duty cycle
• Wait for motor to cool or provide external cooling then check resistance
of PTC
Table
Source
Control Module
HIM Located in Controller Bezel (optional)
Remote DPI
20-COMM-X (optional)
Expansion Port 7, 8, 9 (option module)
Chapter 3
16.
33