Allen-Bradley SMC-50 User Manual

Rockwell Automation Publication 1560F-UM001A-EN-P - June 2019 161
Troubleshooting Chapter 9
Power Quality: THD V 55 Running
• The current mix of loads on the power line
contributing to the THD V has exceeded the
programmed THD V level and/or time
• Check the mix of loads (what was added, what was changed);
modify the load mix if necessary.
• Change the programmed THD V level and/or delay time.
• Disable this fault/alarm feature.
Power Quality: THD I 56 Running
• The current mix of loads on the power line
contributing to the THD I has exceeded the
programmed THD I level and/or time
• Check the mix of loads (what was added, what was changed);
modify the load mix if necessary.
• Change the programmed THD I level and/or delay time.
• Disable this fault/alarm feature.
Config Change 57 In All Modes • A controller parameter has been modified • Disable this fault/alarm feature.
Ground Fault X058
(2)
Running
• The ground fault current level has exceeded
the programmed value
• The delay time is too short for the application
NOTE: An optional 150-SM2 Ground Fault PTC
Module is required for this fault.
• Check the power system and motor; correct if necessary.
• Check the programmed ground fault levels to match application
requirements; modify if necessary.
• Extend the delay time to match the application requirements.
• Disable this fault/alarm feature.
Motor PTC X059
(2)
In All Modes
• Motor ventilation is blocked.
• Motor duty cycle is exceeded
• PTC open or shorted
NOTE: An optional 150-SM2 Ground Fault PTC
Module is required for this fault.
• Check for proper ventilation.
• Check application duty cycle.
• Wait for motor to cool or provide external cooling, then check
resistance of PTC.
• Disable this fault/alarm feature.
SCR Overtemp or PTC
Power Pole
60 or 10 In All Modes
• Controller ventilation blocked
• Controller duty cycle exceeded
• Ambient temperature limit exceeded
•Failed thermistor
• Check for proper controller ventilation.
• Check application-appropriate duty cycle.
• Wait for controller to cool or provide external cooling if ambient
temperature is high.
• Replace power module or control module as needed.
I/O Config 61 Pre-Start
• The configuration of the control I/O does not
meet the system rules
• Modify the control I/O configuration to meet the established
rules.
Test Fault 62 In All Modes
• The SMC-50 control module’s Push to Reset/
Hold to Test push button was pressed for more
than three seconds, but less than ten
• The SMC-50 control module’s Push to Reset/
Hold to Test push button is stuck or damaged
• To reset the Test fault, press the Push to Reset/Hold to Test push
button for less than two seconds.
NOTE: Only use the Push to Reset push button when absolutely
necessary.
• Attempt to dislodge the push button or replace the control
module if necessary.
Und PF Lag 63 In All Modes
• A lagging PF is abnormally under the typical
value; less inductance or more capacitance
has been introduced to the power line
• A programmed setting or time value is
incorrect for the application
• Determine the cause of the reduced Lagging PF.
• Modify the programmed fault/alarm parameters to better suit
the application.
• Disable the fault/alarm feature.
Und PF Lead 64 Running
• A leading PF is abnormally under the typical
value; less inductance or more capacitance
has been introduced to the power line
• A programmed setting or time value is
incorrect for the application
• Determine the cause of the reduced Leading PF
• Modify the programmed fault/alarm parameters to better suit
the application.
• Disable the fault/alarm feature.
Ovr PF Lag 65 Running
• A lagging PF is abnormally over the typical
value; more inductance or less capacitance
has been introduced to the power line
• A programmed setting or time value is
incorrect for the application
• Determine the cause of the Over PF Lagging
• Modify the programmed fault/alarm parameters to better suit
the application.
• Disable the fault/alarm feature.
Ovr PF Lead 66 Running
• A leading PF is abnormally under the typical
value; less inductance or more capacitance
has been introduced to the power line
• A programmed setting or time value is
incorrect for the application
• Determine the cause of the Over PF Leading.
• Modify the programmed fault/alarm parameters to better suit
the application.
• Disable the fault/alarm feature.
-MVAR Over
(1)
67 Running
• Abnormally high reactive (-MVAR) power
consumed by the motor
• Programmed settings are incorrect for the
application
• Repair/replace the condition causing the high -MVAR.
• Modify the programmed fault/alarm parameters to better suit
the application.
• Disable the fault/alarm feature.
-MVAR Under
(1)
68 Running
• Abnormally reduced reactive (-MVAR) power
consumed by the motor
• Programmed settings are incorrect for the
application
• Repair/replace the condition causing the reduced -MVAR.
• Modify the programmed fault/alarm parameters to better suit
the application.
• Disable the fault/alarm feature.
RTC Battery Low 69 Pre-Start
• Battery reading is below the acceptable level
to potentially maintain the real time clock and
calendar
• Replace battery (CR2032) as soon as possible.
Table 58 - Fault Display Explanation (Continued)
Display Fault Code Fault Enabled Possible Causes Possible Solutions

Allen-Bradley SMC-50 Specifications

General

Brand	Allen-Bradley
Model	SMC-50
Category	Controller
Language	English