Phase Technology PERFECT PT007 - Fault Codes

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V4.1
Fault Codes
Table 29 – Fault Codes
Text
Description/Comments
Restart
BUS OVERVOLTAGE
Sudden and severe regenerative power under high
line voltage may result in bus overvoltage.
Auto
CLASS 4 OVERLOAD
Output current exceeded operating limit.
Auto
CM BOARD FAULT
Connection from Control board to Hall Sensor isn’t
properly connected. Power down unit, reconnect, and
restart.
Manual
HALL SENSE HIGH
Current exceeded the maximum rating of the Hall
sensor. May indicate a fault in the motor circuit.
Auto
HIGH INPUT VOLT
Input voltage has exceeded a safe operating level.
Reduce input voltage.
Auto
IGBT FAULT
Check for short circuit on input and output lines and
load. Contact Phase Technologies.
Manual
INPUT OVERLOAD
Input current exceeded the operating limit.
Auto
LINE CAP FAIL
Replace line capacitors or contact Phase
Technologies for replacement.
Manual
LOW INPUT VOLT
Input voltage has fallen below a safe operating level.
Auto
OUTPUT OVERLOAD
A large and sudden overcurrent event on the output
module. Check motor circuit for faults.
Auto
OVER TEMPERATURE
Internal temperature of the converter exceeded safe
operating limits. Check fans and ventilation openings
for obstruction. Reduce ambient temperature.
Auto
PLL FAULT
Phase-Locked Loop occurs when input frequency is ±
7 Hz of 60 Hz. Check input frequency.
Auto
PRECHARGE FAIL
Pre-charge circuit has failed to charge bus
capacitors.
Manual
STIR FAN FAIL
PT420 and PTE420QT only. Temperature sensor
near inductor has exceed safe operating limits. Wait
for temperature to drop to safe level.
Auto
TEMP SENSE FAULT
Temperature sensor on the heat sink has failed or its
cable is disconnected.
Manual
UNBALANCE BUS VOL
Potential damage to a bus capacitor or degradation
of the bus balancing resistor.
Auto
VOLTAGE UNBALANCE
Output voltage difference between pass-through legs
and generated leg is greater than 50 V.
Manual