About faults, About faults on – Rockwell Automation Liqui-Flo V2.0 AC Drive User Manual
Page 201
Rockwell Automation Publication D2-3518-3 - May 2013
201
Chapter 10
Table 19 - Alarm Names Cross-Referenced by Alarm Numbers
About Faults
Faults indicate conditions within the drive that require immediate attention. The
drive responds to a fault by initiating a coast-to-stop sequence and turning off
output power to the motor.
In addition, some faults are auto-resettable, non-resettable, and/or
user-configurable as described in
Table 20 - Fault Types
The drive indicates faults in the following ways:
•
Status LEDs on the drive control panel (see
Using the Status LEDs on page 196
•
Drive status parameters Drive Status 1 (209) and Drive Status 2 (210).
•
Entries in the fault queue (see
About the Fault Queue on page 202
).
•
Pop-up screen on the OIM. See
. The screen displays:
–
Fault number
–
Fault name
–
Time that has elapsed since fault occurred.
No.
(1)
(1) Alarm numbers not listed are reserved for future use.
Alarm
No.
(1)
Alarm
1
Precharge Active
18
Dig In ConflictB
2
UnderVoltage
19
Dig In ConflictC
3
Power Loss
20
Bipolar Conflict
5
Analog In Loss
21
Motor Type Conflict
6
IntDBRes OvrHeat
22
NP Hz Conflict
8
Drive OL Level 1
23
MaxFreq Conflict
9
Drive OL Level 2
24
VHz Neg Slope
12
No Line Sync
25
IR Volts Range
13
Power Phased ACB
26
FluxAmps Ref Rang
17
Dig In ConflictA
27
Speed Ref Cflct
Ty
pe
Fault Description
1 Auto-Reset/Run
If the drive is running when this type of fault occurs, and Auto Rstrt Tries (174) is set
to a value greater than 0, a user-configurable timer, Auto Rstrt Delay (175) begins.
When the timer reaches zero, the drive attempts to automatically reset the fault. If
the condition that caused the fault is no longer present, the fault resets and the drive
restarts.
2 Non-Resettable
This type of fault normally requires drive or motor repair. The cause of the fault must
be corrected before the fault can be cleared. The fault resets on power up after repair.
3 User-Configurable
These faults can be enabled/disabled to either annunciate or ignore a fault condition
using Fault Config 1 (238).
4 Normal Fault
The fault is resettable using normal fault clearing mechanisms on the drive (Stop/
Reset button, powercycling, etc.) or through VS Utilities.