ENGLISH 33

Troubleshooting and Diagnostics
5.3 Fault Messages

The messages below show how they will appear on the display when the drive trips. When looking at

the Fault History (P500), the . will not appear in the fault message.

Fault Cause Remedy (1)
High Temperature fault Drive is too hot inside • Reduce drive load
• Improve cooling
Assertion Level fault • Assertion Level switch is
changed during operation
• P120 is changed during
operation
• P100 or P121...P123 are set to

a value other than 0 and P120

does not match the Assertion

Level Switch.

• Make sure the Assertion Level
switch and P120 are both set for
the type of input devices being
used, prior to setting P100 or
P121...P123.
See 3.2.3 and P120.
Personality fault Drive Hardware • Cycle Power
• Power down and install EPM with
valid data
• Reset the drive back to defaults
(P199 = 3, 4) and then re-
program
• If problem persists, contact
factory technical support
Control fault An EPM has been installed that is
either blank or corrupted
Incompatible EPM fault An EPM has been installed that
contains data from an incompatible
parameter version
Dynamic Braking fault Dynamic braking resistors are
overheating
• Increase active decel time
(P105, P126, P127).
• Check mains voltage and P107
External fault • P121…P123 = 21 and that digital
input has been opened.
• P121…P123 = 22 and that digital
input has been closed.
• Correct the external fault
condition
• Make sure digital input is set
properly for NC or NO circuit
EPM fault EPM missing or defective Power down and replace EPM

Internal faults Contact factory technical support
Invalid message received • A network message was
received while in Remote Keypad
mode
• A remote keypad message was
received while in Network mode
Only the remote keypad or the
network can be connected at one
time; see P100
Loss of 4-20 mA signal
fault
4-20 mA signal (at TB-25) is below
2 mA (P163 = 1)
Check signal/signal wire
OEM Defaults data fault Drive is powered up with
P199 =1 and OEM settings in the
EPM are not valid.
Install an EPM containing valid
OEM Defaults data or change P199
to 0.
High DC Bus Voltage
fault
Mains voltage is too high Check mains voltage and P107
Decel time is too short, or too much
regen from motor
Increase active decel time
(P105, P126, P127) or install
Dynamic Braking option
(1) The drive can only be restarted if the error message has been reset