Lenze 8400 - Unlocking the Inverter with a Masterpin

Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23 49
2 Introduction: Parameterising the inverter
2.4 Device access protection
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2.4.4 Unlocking the inverter with a MasterPin
Every inverter has an individual master password called "MasterPin". By entering the MasterPin, an
inverter inhibited by the password mechanisms can be reset to the delivery status.
 How to restore the delivery status:
1. Inhibit the inverter if it is enabled, e.g. via the C00002/16
device command.
2. Enter the MasterPin in C00505/1
.
• The MasterPin comprises the last 6 digits of the serial number of the memory module.
3. Execute "Check MasterPin" device command C00002/28
= "1: On / start"
 Stop!
When the MasterPin is used, the parameter set is reset to the Lenze setting both in the
inverter and in the memory module!
• This results in a permanent loss of the customised parameterisation that must be
recreated!
• A reset to the Lenze setting can result in unforeseen level changes at the I/O terminals
(e.g. brake control)!