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Installation Guide Alarms <br /> Appendix B: VSFC Faults a • Alarms <br /> Alarms <br /> HIGH CURRENT <br /> High current has been detected.The motor rotor could be locked. One or more of the phases going to the <br /> motor could be open. Check the motor by checking the resistance between the terminals (see Table 14). <br /> Check all the wiring going to the motor for opens and shorts. <br /> OVER VOLTAGE <br /> High input voltage has been detected.Check the input voltage to make sure that it is within specifications <br /> (see Table 12). <br /> LOW VOLTAGE <br /> Low input voltage has been detected. Check the input voltage to make sure that it is within specifications (see <br /> Table 12). <br /> OVER TEMPERATURE <br /> High internal drive temperature has been detected. Check to make sure that the drive has the proper <br /> clearance on all sides and that nothing is obstruction the airflow. Check to make sure that the fan is running. <br /> PRESSURE SENSOR FAULT <br /> Pressure transducer has faulted. Check to make sure that the pressure transducer is connected. Check the <br /> wiring to the transducer. <br /> SELF-TEST FAULT <br /> Software has detected errors in the drive.Turn off power, check all setup switches and wiring then apply <br /> power to the drive. <br /> MOTOR DRIVE FAULT <br /> Drive has detected a problem running the motor. Check all drive wiring (see Table 12,Table 13,and Table <br /> 14). <br /> COMMUNICATIONS FAULT <br /> Drive has detected communication errors. In standalone configuration check cable connected to J9. In multi- <br /> unit configuration, check the Slave COM connections and wiring (J6,Table 11, and Figure 8)and J9 in each <br /> drive. <br /> 26 <br />