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Building Technologies Division  Basic Documentation LME7...  CC1P7105en 
Infrastructure & Cities Sector  27 PWM settings  29.11.2011 
 
27.4.6  ... via the onboard operating panel of the LME7... basic 
unit 
 
 Keep 
 
A
 and 
+
 or   simultaneously depressed for >5 seconds. 
 Display shows OFF blinking 
 
 
Note: 
If there is no operating action for >30 seconds, the LME7... changes automatically to 
standard mode. This means that adaptation of the working points must be started 
again. 
  Heat request (temperature controller) ON 
  Basic unit is started and runs through the startup phase. Then, the unit runs 
through the respective program phases in accordance with the program 
sequence; the numbers appear blinking 
  The unit proceeds to the end of the prepurge phase (P30), goes to the start load 
position and then displays P0 (ignition load sped). In the process, the display 
shows alternately P0 and a 3-digit number 
 
Note: 
The 3-digit number shows the setting value for parameter P0/P1 or P2 as the speed 
and must be multiplied by 10. 
 
 By pressing 
 and 
+
 or   the speed can be changed in step sizes of 10 rpm 
within the limits predefined by the OEM (P0max, P0min) 
 
 
Note! 
The setting value of P0 must be greater than the setting value of P1. The basic unit 
checks the setting values. If setting rules are violated, the unit goes to lockout and 
displays error message Loc: 225. 
 
 Press  
 
nfo
to transfer the setting value to the onboard memory 
  The startup phase proceeds. The burner is ignited. The program proceeds to low-
fire position P1. In the process, the display shows alternately P1 and the speed 
 By pressing 
 and 
+
 or   the speed can be changed in step sizes of 10 rpm 
within the limits predefined by the OEM (P1max, P1min) 
 Press  
 
nfo
to transfer the setting value to the onboard memory 
  The burner proceeds to high-fire position P2. In the process, the display shows 
alternately P2 and the speed 
 By pressing 
 and 
+
 or   the speed can be changed in step sizes of 10 rpm 
within the limits predefined by the OEM (P2max, P2min) 
 Press  
reset
 to transfer the setting value to the onboard memory 
 By pressing ESC (press 
+
 and   simultaneously) the setting process is ended 
and the burner changes to the operating position 
  In the operating position, the output predefined by the external load controller 
applies 
 
 
Note: 
To store the settings in the PME... program module, a manual backup is required. 
Also see chapter Manual backup.