Siemens LMV37.4 Series Basic Documentation page 205

Basic unit with integrated air-fuel ratio control for forced draft burners
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Par.
Parameter
no.
Error diagnostics via negative values (see error code 150)
125
Mains frequency
0 = 50 Hz
1 = 60 Hz
126
Display brightness
127
Timeout for menu operation
128
Fuel meter: Pulse valency [pulses / volume unit]
130
Delete display of error history
To delete the display: Set parameter to 1, then to 2
Return value 0: Job successfully completed
Return value -1: Timeout of 1_2 sequence
133
Default output for TÜV test
Invalid = TÜV test when output is active
2.000...10.000 = low-fire...high-fire or stage 1 / stage 2 / stage 3
141
Operating mode BACS
0 = off
1 = Modbus
2 = reserved
142
Setback time in the event of communication breakdown
Setting values
0 = inactive
1....7200 s
143
Reserved
144
Reserved
145
Device address for Modbus of basic unit
Setting values
1...247
146
Setting of Baud rate for Modbus communication
Setting values
0 = 9600
1 = 19200
Building Technologies Division
Industry Sector
Number of
Type
Edit
elements
1
Selection
edit
1
Std_u8
edit
1
Std_u8
edit
1
Std_u16
edit
1
Std_s8
edit
1
Output
edit / clear
1
Selection
edit
1
Std_u16
edit
1
Std_u8
edit
1
Std_u16
edit
1
Std_u8
edit
1
Selection
edit
Basic documentation LMV37.4...
28 Parameter list LMV37.4...
Value range
Resolution
Min
Max
0
1
1
0%
100%
1%
10 min
120 min
1 min
0
400
0.01
-5
2
1
20 %
100 %
0.1 %
0
2
1
0 s
7200 s
1 s
1
8
1
10 s
60 s
1 s
1
247
1
0
1
1
Default
Password level
setting
LMV37.400...: 0
SO
LMV37.420...: 1
LMV37.400...: 75 %
SO
LMV37.420...: 100 %
LMV37.400...: 30 min
OEM
LMV37.420...: 60 min
0
SO
0
SO
undefined
SO
0
SO
120 s
SO (BA)
1
Info / Service
30 s
SO
1
SO
1
SO
205/235
CC1P7546en
20.09.2013

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