Lenze ESV SMV frequency inverter - Manual (Page 62)

60 Lenze SMVector 13465100 EDBSV01 EN v18
Troubleshooting and Diagnostics
Fault Cause Remedy (1)
f.dbF Dynamic Braking fault Dynamic braking resistors are overheating • Increase active decel time
(P105, P126, P127).
• Check mains voltage and P107
f.EF External fault • P121…P124 = 21 and that digital input
has been opened.
• P121…P124 = 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
f.F1 EPM fault EPM missing or defective Power down and replace EPM
f.F2
…
f.F12
Internal faults Contact factory technical support
f.Fnr Control Configuration Fault The drive is setup for REMOTE KEYPAD
control (P100=2 or 5) but is not setup to
communicate with a remote keypad
Set P400 = 1, or P600 = 1
The drive is setup for NETWORK ONLY
control (P100=3) but is not setup for
network communications Set P400 or P600 to a valid network
communications protocol selection
f.FoL TB25 (4-20 mA signal)
Threshold fault 4-20 mA signal (at TB-25) drops below the
value set in P164. • Check signal/signal wire
• Refer to parameters P163 and P164.
f.GF 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.
f.HF 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
f.1L Digital Input
Configuration fault (P121...
P124) More than one digital input set for the same
function Each setting can only be used once (except
settings 0 and 3)
Only one digital input configured for MOP
function (Up, Down) One input must be set to MOP Up, another must
be set to MOP Down
PID mode is entered with setpoint
reference and feedback source set to the
same analog signal
Change PID setpoint reference (P121…P124) or
feedback source (P201).
One of the digital inputs (P121…P124) is
set to 10 and another is set to 11…14.
Reconfigure digital inputs 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)
PID cannot be used in Vector Torque mode
f.JF Remote keypad fault Remote keypad disconnected Check remote keypad connections
f.LF Low DC Bus Voltage fault Mains voltage too low Check mains voltage
f.n1d No Motor ID fault An attempt was made to start the drive
in Vector or Enhanced V/Hz mode prior to
performing the Motor Auto-calibration Refer to parameters P300…P399 for Drive Mode
setup and calibration.
f.ntF Module communication
fault Communication failure between drive and
Network Module. Check module connections
f.nF1
…
f.nF9
Network Faults Refer to the module documentation. for
Causes and Remedies.