Siemens LME7 Series Technical Instructions page 90

Fault
Description of the Fault
Code
227 PWM blower parameterization error
rSt Er1
Incompatible PME7 and LME7
rSt Er2
rSt Er3 Fault during restore process
bAC Er3 Fault during backup process
Err PrC No program module detected
Section 7
One or more PWM blower settings are not compatible. Make sure the following three conditions on the
minimum and maximum speed settings are met.
1. 516.00 ≤ P0 ≤ 516.01
2. 517.00 ≤ P1 ≤ 517.01
3. 518.00 ≤ P2 ≤ 518.01
The PME7 program module and LME7 base unit being used are incompatible. PME71 program modules are
only compatible with LME71 base units, PME73 program modules are only compatible with LME73 base
units, and PME75 program modules are only compatible with LME75 base units.
The PME7 program module was removed during the restore process. Re-install the PME7 program module
and reset the fault to complete the restore process.
The PME7 program module was removed during the backup process. Re-install the PME7 program module
and reset the fault. Perform the backup process again.
This fault occurs when no PME7 program module is plugged into the LME7 base unit. Insert a PME7
program module into the LME7 base unit and reset the fault.
Page 6
Corrective Action
SCC Inc.