92 PACMotion VFD AC Variable Speed Drive User Guide GFK-3111A
Fault Code
No.
OLED Message
Description
Corrective Action
Ambient
temp too
high
23 Ambient Temperature
High
The measured temperature around the drive is above the operating limit of the
drive.
Ensure the drive internal cooling fan is operating.
Ensure that the required space around the drive as shown in sections
Mechanical Dimensions and Weight on page 15 to Guidelines for Mounting
(IP66 Units) on page 21 has been observed, and that the cooling airow
path to and from the drive is not restricted.
Increase the cooling airow to the drive.
Reduce the effective switching frequency setting in parameter P2-24.
Reduce the load on the motor / drive.
High motor
current
24 Maximum Torque Limit
Exceeded
The output torque limit has exceeded the drive capacity or trip threshold.
Reduce the motor load, or increase the acceleration time.
Low motor
current
25 Output Torque Too Low Active only when hoist brake control is enabled P2-18 = 8. The torque
developed prior to releasing the motor holding brake is below the preset
threshold. Contact your local Emerson Sales Partner for further information on
using the PACMotion VFD in hoist applications.
Drive output
fault
26 Drive output fault Drive output fault.
Fault in sto
circuit
29
Internal STO circuit Error
Refer to your Emerson Sales Partner.
Encoder
comms loss
30 Encoder Feedback Fault Encoder communication /data loss.
Encoder
speed error
31 Speed Error Speed Error. The error between the measured encoder feedback speed or the
estimated rotor speed is greater than the pre-set limit allowed. In Hoist Mode
Operation, this protection is always active even if no encoder is tted. The
motor speed deviates from the intended motor speed by an error greater than
that set in the limit parameter P6-07.
Incorrect ppr
count
32 Encoder Feedback Fault Incorrect Encoder PPR count set in parameter P6-06.
Encoder
channel a
fault
33 Encoder Feedback Fault Encoder Channel A Fault.
Encoder
channel b
fault
34 Encoder Feedback Fault Encoder Channel B Fault.
Encoder
channel a/b
fault
35 Encoder Feedback Fault Encoder Channels A & B Fault.
Stator r
unbalance
40 Autotune Failed Measured motor stator resistance varies between phases. Ensure the motor
is correctly connected and free from faults. Check the windings for correct
resistance and balance.
Stator r too
large
41 Measured motor stator resistance is too large. Ensure the motor is correctly
connected and free from faults. Check that the power rating corresponds to
the power rating of the connected drive.
Inductance
too low
42 Measured motor inductance is too low. Ensure the motor is correctly
connected and free from faults.
Inductance
too large
43 Measured motor inductance is too large. Ensure the motor is correctly
connected and free from faults. Check that the power rating corresponds to
the power rating of the connected drive.
Params not
convergent
44 Measured motor parameters are not convergent. Ensure the motor is correctly
connected and free from faults. Check that the power rating corresponds to
the power rating of the connected drive.
Input
sequence
error
45 Incorrect Supply Phase
Sequence
Applies to Frame Size 8 drives only, indicates that the incoming power supply
phase sequence is incorrect. Any 2 phases may be swapped.
Motor output
phase loss
49 Output Phase Loss One of the motor output phases is not connected to the drive.
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