Rockwell Automation 20L PowerFlex 700L Frame 1X Liquid-Cooled Adjustable Frequency AC Drive - Manual (Page 46)

PowerFlex 700L Frame 1X Drive Installation Instructions – Publication 20L-IN013A-EN-P – June 2009
46
For a complete listing of Faults and Alarms, refer to the PowerFlex 700
Series B User Manual (publication 20B-UM002).
Troubleshooting – Abbreviated Fault & Alarm Listing
Fault No. Ty
p
e
(1
)
(1) See the User Manual for a description of fault types.
Description Action
Auxiliary Input 2 ➀ Auxiliary input interlock is open. Check remote wiring.
Decel Inhibit 24 ➂ The drive is not following a
commanded deceleration because it
is attempting to limit bus voltage. 1. Verify input voltage is within
drive specified limits.
2. Verify system ground
impedance follows proper
grounding techniques.
3. Disable bus regulation and/or
add dynamic brake resistor
and/or extend deceleration
time. Refer to
page 4 for
further info.
4. Disable with Parameter 238.
FluxAmpsRef
Range 78 The value for flux amps determined
by the Autotune procedure exceeds
the programmed [Motor NP FLA],
Parameter 042. 1. Reprogram Parameter 042
[Motor NP FLA] with the correct
motor nameplate value.
2. Repeat Autotune.
HW
OverCurrent 12 ➀ The drive output current has
exceeded the hardware current limit. Check programming. Check for
excess load, improper DC boost
setting, DC brake volts set too high
or other causes of excess current.
IR Volts Range 77 “Calculate” is the autotune default
and the value determined by the
autotune procedure for IR Drop Volts
is not in the range of acceptable
values. Re-enter motor nameplate data.
Motor Overload 7 ➀
➂ Internal electronic overload trip.
Enable/Disable with Parameter 238
[Fault Config 1]. An excessive motor load exists.
Reduce load so drive output current
does not exceed the current set by
Parameter 042 [Motor NP FLA].
OverSpeed
Limit 25 ➀ Functions such as Slip
Compensation or Bus Regulation
have attempted to add an output
frequency adjustment greater than
that programmed in Parameter 083
[Overspeed Limit]. Remove excessive load or
overhauling conditions or increase
Parameter 083 [Overspeed Limit].
OverVoltage 5 ➀ DC bus voltage exceeded maximum
value. Monitor the AC line for high line
voltage or transient conditions. Bus
overvoltage can also be caused by
motor regeneration. Extend the
decel time or install dynamic brake
option.
SW
OverCurrent 36 ➀ Drive output current has exceeded
the 1ms current rating. This rating is
greater than the 3 second current
rating and less than the hardware
overcurrent fault level. It is typically
200…250% of the drive continuous
rating. Check for excess load, improper DC
boost setting. DC brake volts set too
high.