26 PowerFlex 700 Adjustable Frequency AC Drive Quick Start
For a complete listing of Faults and Alarms, refer to the PowerFlex 700
User Manual.
Troubleshooting – Abbreviated Fault & Alarm Listing
Fault
No.
Type
(1)
Description Action
Auxiliary Input 2
➀
Auxiliary input interlock is open. Check remote wiring.
Motor Overload 7
➀
➂
Internal electronic overload trip.
Enable/Disable with [Fault Config
1].
An excessive motor load exists.
Reduce load so drive output current
does not exceed the current set by
[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
[Overspeed Limit].
Remove excessive load or
overhauling conditions or increase
[Overspeed Limit].
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.
DB Resistance 69 Resistance of the internal DB
resistor is out of range.
Replace resistor.
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.
FluxAmpsRef
Rang
78 The value for flux amps
determined by the Autotune
procedure exceeds the
programmed [Motor NP FLA].
1. Reprogram [Motor NP FLA] with
the correct motor nameplate
value.
2. Repeat Autotune.
(1)
See the User Manual for a description of fault types.
To Next Page
Loading...
Need help?
General
