About alarms – Rockwell Automation Liqui-Flo V2.0 AC Drive User Manual
Page 198
198
Rockwell Automation Publication D2-3518-3 - May 2013
Chapter 10
Table 15 - Inverter Status LED Definitions
Table 16 - Rectifier Status LED Definitions
Table 17 - Status LED Definitions for Hardware Failure
About Alarms
Alarms indicate conditions that may affect drive operation or application
performance.
There are two alarm types, as described in
.
Color
State
Description
Green
Flashing
Drive ready, but not running and no faults or alarms are present.
Steady
Drive running, no faults or alarms are present.
Yellow
See
Flashing
The drive is not ready. Check inverter parameter 214 (Start Inhibits).
Steady
An alarm condition exists; drive may be running. Check inverter
parameters 211 (Drive Alarm 1) and 212 (Drive Alarm 2).
Red
See
Flashing
A fault has occurred.
Steady
A non-resettable fault has occurred.
Color
State
Description
Green
Flashing
Rectifier ready, but not running and no faults are present.
Steady
Rectifier running (providing current to inverter).
Yellow
Flashing
Precharge contactor is open and rectifier is not running. This is the
normal state if the inverter is not running.
Steady
A rectifier alarm condition exists; rectifier may be running. Check
rectifier parameter 211 (Alarm Status).
Red
Flashing
A rectifier fault has occurred. This also causes an inverter fault, and
the fault is enunciated on the OIM or other DPI device.
Steady
A non-resettable rectifier fault has occurred.
IMPORTANT
Certain hardware failures produce indications on the status LEDs that are not
covered in the above tables. For Frame 3 drives, the appropriate response to the
appearance of any of these indications is to replace either the Rectifier Control
board or Inverter Control board depending on which LED displays the
indication. For Frame 4 drives, the appropriate response is always to replace
the Control board.
lists the indications.
LED Indication
Condition
Red/green alternating
Control board boot firmware is running because control board
application firmware is corrupted.
Yellow/green/red repeating pattern
Control board RAM has failed or control board boot firmware is corrupted.