Troubleshooting and Error Codes 1-13
Addressing 700H Faults
No. Name Description Action (if appropriate)
2 Auxiliary In The auxiliary input interlock is open. Check all remote wiring.
3 Power Loss The DC bus voltage remained below
the value set in parameter [Power
Loss Volts] for longer than the time
specified in parameter [Power Loss
Time]. You can enable/disable this
fault with parameter 238 [Fault Config
1].
Monitor the incoming AC line for low
voltage or line power interruption.
4 UnderVoltage The DC bus voltage fell below the
minimum value of 333V for 400/480V
drives and 461V for 600/ 690V drives.
You can enable/disable this fault with
parameter 238 [Fault Config 1].
Monitor the incoming AC line for low
voltage or power interruption.
5 OverVoltage The DC bus voltage exceeded the
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 a dynamic brake
option.
6 Motor Stall The motor is operating at high current
and low frequency and is not
accelerating.
1. Run an Autotune.
2. Reduce the Load.
7 MotorOverload Internal electronic overload trip. You
can enable/disable this with
parameter 238 [Fault Config 1].
1. Run an Autotune.
2. Verify the settings of parameters
48 [Motor OL Factor] and 47
[Motor OL Hertz].
3. Reduce the load so that the drive
output current does not exceed the
current set by the value in
parameter 42 [Motor NP FLA].
8 HeatsinkOvrTp The heatsink temperature has
exceeded the maximum allowable
value.
85 degrees C = Alarm
90 degrees C = Fault
1. Verify that the maximum ambient
temperature has not been
exceeded.
2. Check the fan(s).
3. Check for an excess load.
4. Check the carrier frequency.
9 IGBT OverTemp The output transistors have exceeded
their maximum operating
temperature due to an excessive
load.
1. Verify that the maximum ambient
temperature has not been
exceeded.
2. Check the fan(s).
3. Check for an excess load.
10 System Fault A hardware problem exists in the
power structure.
1. Cycle the power.
2. Verify the fiber optic connections.
3. Contact Technical Support. See
Technical Support Options on
page 1-19 for more information.
4. If the problem persists, replace the
drive.
12 OverCurrent The drive output current has
exceeded the hardware current limit.
Check programming for an excess
load, improper DC boost setting, DC
brake voltage set too high or other
causes of excess current. Check for
shorted motor leads or a shorted
motor.
13 Ground Fault A current path to earth ground exists
that is greater than 25% of the drive
rating. The current must appear for
800ms before the drive will fault.
Check the motor and external wiring
to the drive output terminals for a
grounded condition.
To Next Page
Loading...
Need help?
General
