154 Rockwell Automation Publication 1560F-UM001A-EN-P - June 2019
Chapter 8 Diagnostics
Power
Quality
A52 NYYF/A Fault condition which
indicates that the starter is
not properly firing its:
A Phase SCR.
B53 B Phase SCR.
C54 C Phase SCR.
Power Quality
THD V
55 YYYF/A Indicates a high, voltage based total harmonic distortion level.
Power Quality
THD I
56 YYYF/A Indicates a high, current based total harmonic distortion level.
Config Change 57 N Y Y F/A Indicates any change to the SMC-50 control module parameter
configuration.
Ground Fault 58 YYYF/A Indicates the value of Ground Fault Current goes above the user-
defined fault/alarm level.
NOTE: A 150-SM2 Ground Fault PTC Feedback Module and 825-CBCT
Core Balanced Ground Fault Sensor are required to configure this Fault/
Alarm.
Motor PTC 59 N Y Y F/A Indicates the embedded motor PTC sensing device is tripped/
closed due to a motor overtemperature condition. NOTE: A 150-SM2
Ground Fault PTC Feedback Module is required to configure this Fault/
Alarm.
Power Pole PTC 60 N N N
A
F Built-in Power Pole PTC Temperature Sensor is used to measure
power pole temperature. A fault occurs when the temperature rises
above a predetermined level. This fault is always enabled.
I/O Config 61 N N N
A
F Occurs when any input is programmed as a start and no input is
configured as a coast or stop. The fault occurs when the start or
maneuver is attempted (the motor will not start). This fault is also
generated when the input configuration changes from one that cannot
start the motor to one that can. It will also be generated when a
parameter is changed from an input that can stop the motor to one that
cannot. This fault is always enabled.
Test Fault 62 NNN
A
F Occurs when the Push-to-Reset, Hold-to-Test push button on the
SMC-50 control module is pushed for 3 seconds but < 10 seconds.
Under PF Lag 63 Y Y Y F/A Occurs when the lagging Power Factor goes below the user-
defined fault/alarm level.
Under PF Lead 64 Y Y Y F/A Occurs when the leading Power Factor goes below the user-
defined fault/alarm level.
Over PF Lag 65 Y Y Y F/A Occurs when the lagging Power Factor goes above the user-defined
fault/alarm level.
Over PF Lead 66 YYYF/A Occurs when the leading Power Factor goes above the user-defined
fault/alarm level.
-MVAR Over 67 Y Y Y F/A Occurs when the magnitude of the Reactive Power rises above the
user-defined level.
-MVAR Under 68 Y Y Y F/A Occurs when the magnitude of the Reactive Power falls below the
user-defined level.
RTC Battery Low 69 NNN
A
A Occurs when the SMC-50 control module battery that maintains the
value of the Real Time Clock (RTC) is low and needs to be replaced
immediately. Alarm is always enabled.
Locked Rotor 70 YYYF/A Occurs when the motor current increases above the user-defined
fa
ult/a
larm level while the motor is in any running mode. This F/A
condition is not active during starting or stopping.
Table 57 - Linear Listing—Fault and Alarm Code Overview (Continued)
Fault/Alarm
Code Name
F/A Code
Time Delay Avail.
F/A Bit Enable
Restart Enable
Description
F/A= Fault and Alarm, A= Alarm, F= Fault
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