Fault Messages - Lenze SMV Series Operating Instructions Manual

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 F_ will not appear in the fault message.
Fault
High Temperature fault
f.AF
Assertion Level fault
f.AL
EN
Personality fault
f.bf
Control fault
f.CF
Incompatible EPM fault
f.cF
Forced Translation fault
f.cFT
Dynamic Braking fault
f.dbF
External fault
f.EF
EPM fault
f.F1
Internal faults
f.F2
...
f.F12
Control Configuration
f.Fnr
Fault
TB25 (4-20 mA signal)
f.FoL
Threshold fault
OEM Defaults data fault Drive is powered up with P199 =1 and
f.GF
High DC Bus Voltage
f.HF
fault
Digital Input
f.1L
Configuration fault
(P121)
42
Cause
Drive is too hot inside
• Assertion Level switch is changed
during operation
• P120 is changed during operation
• P100 or P121 is set to a value other
than 0 and P120 does not match the
Assertion Level Switch.
Drive Hardware
An EPM has been installed that is either
blank or corrupted
An EPM has been installed that contains
data from an incompatible parameter
version
An EPM from an old drive put in new
drive causes drive to trip F_cFT fault.
Dynamic braking resistors are
overheating
• P121 = 2 and that digital input has
been opened.
• P121 = 3 and that digital input has
been closed.
EPM missing or defective
4-20 mA signal (at TB-25) drops below
the value set in P164.
OEM settings in the EPM are not valid.
Mains voltage is too high
Decel time is too short, or too much
regen from motor
More than one digital input set for the
same function
Only one digital input configured for
MOP function (Up, Down)
PID mode is entered with setpoint
reference and feedback source set to the
same analog signal
One of the digital inputs (P121...P124) is
set to 10 and another is set to 11...14.
One of the digital inputs (P121...P124)
is set to 11 or 12 and another is set to
13 or 14.
PID enabled in Vector Torque mode
(P200 = 1 or 2 and P300 = 5)
Remedy
(1)
• Reduce drive load
• Improve cooling
• 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.
Refer to 3.2.3 and P120.
• 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
Press [M] (mode button) twice to reset
• Increase active decel time
(P105, P126, P127).
• Check mains voltage and P107
• Correct the external fault condition
• Make sure digital input is set properly for
NC or NO circuit
Power down and replace EPM
Contact factory technical support
• Check signal/signal wire
• Refer to parameters P163 and P164.
Install an EPM containing valid OEM Defaults
data or change P199 to 0.
Check mains voltage and P107
Increase active decel time (P105, P126, P127)
or install Dynamic Braking option
Each setting can only be used once (except
settings 0 and 3)
One input must be set to MOP Up, another
must be set to MOP Down
Change PID setpoint reference (P121...P124)
or feedback source (P201).
Reconfigure digital inputs
PID cannot be used in Vector Torque mode
EDBSV571 EN 1.0