Lenze SMVector 13554876 EDBSV01 EN v21.0 69
4.1 Notes / Warnings
4.1.1 Programming / Power Warnings
Programming Notes:
y When replacing a VFD, make sure to take the original EPM from drive and put in the replacement drive. Power
must be removed from both to the original and new drive before swapping the EPM. If the original drive
isolderyoumaygetanF_cFtfault.Thisisduetoamiss-matchinrmwarebetweenthedrives.Toresolvethe
issueperformthetranslatefunctionbypushingtheMODEbutton←Mthreetimes.
y A F_AL fault indicates the assertion level switch on the control board does not match the setting P120 or a Digital
input (P100, 121-124) is set to something other than 0.
y When using Jog, be aware the Jog function will override even the Stop input. To stop the drive while in Jog
mode the Jog input must be deactivated or a digital input must be assigned to an external fault and activated.
Power Warnings / Tips:
y Long Term Storage (1 year or more) requires reforming the capacitors. To do this you must power the drive for
8 hours without a load / motor connected.
y If the KVA rating of the supply transformer is greater than 10X the KVA rating of the drive(s), we recommend an
input line reactor with 2-3% impedance rating be connected on the drives input.
y When servicing, turn off power and wait at least 3 minutes before touching anything on the drive. This holds true for
power cycling as well. The DC bus capacitors need to dissipate voltage to prevent shock and damage to the drive.
y When using a GFCI (Ground fault circuit interrupter) the following can cause tripping:
◦ Capacitive leakage currents between the cable shields during operation (especially with long cable runs)
◦ Connecting several VFDs to the main power at the same time.
◦ RFIltersconnectedtothemainpower.
◦ Use of a residential 6mA GFCI is not recommended.
y We do not recommend contacts between the drive and motor. The drive has built in UL motor overload protection,
so no other overload device is needed. Connecting/disconnecting the drive to/from load while running can result
in damage to the inverter.
y Motor thermal overload protection contacts need to be connected to a digital input and this input must be assigned
to an external fault for proper operation.
For further assistance, please
visit our SMV Support Portal:
https://lenze.yonyx.com/y/portal/