
Troubleshooting the Drive
12-3
12.2 Determining Precharge Board Status Using the
LED Indicators (Frames 5 & 6 Only)
The precharge board LEDs are located above the Line Type jumper
shown in figure 12.2.
Figure 12.2 – Location of Precharge Status LED
Table 12.1 – Precharge Board LED Indicators
Name Color State Description
Power
ON
Green Steady Indicates when pre-charge board power
supply is operational
Alarm Yellow Steady Indicates one of the following alarms
occurred causing the pre-charge to
momentarily stop firing:
• Line Loss
• Low Phase (single-phase dropped
below 80% of line voltage)
• Input frequency out of range
(momentarily)
Note: An alarm condition automatically
resets when the condition no longer
exists
Fault Red Steady Indicates one of the following faults:
• DC Bus short
• DC Bus not charged
• Input frequency out of range
• Overtemperature
Note: A fault indicates a malfunction that
needs to be corrected prior to restarting.
A fault condition is only reset after
cycling power.
Optional
Com munications
Module
Line Type
Three-Phase
(default)
Single-Phase
Spare
Spare
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