Siemens LMV37.4 Series User Manual

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Building Technologies Basic documentation LMV37.4... CC1P7546en
29 Error code list (all LMV2 types / LMV3 types) 17.12.2018
Error
code
Diagnostic code Meaning for the LMV37.4 Recommended measures or causes
0 No minimum gas pressure
Check wiring to see if there is an open-circuit (X5-01)
1 Gas shortage – start prevention
Check wiring to see if there is an open-circuit (X5-01)
2 Heavy oil direct start
Check wiring to see if there is an open-circuit (X9-04)
Check that the oil is preheated correctly
50 # Internal error Make a reset; if error occurs repeatedly, replace the LMV37.4
51 # Internal error Make a reset; if error occurs repeatedly, replace the LMV37.4
55 # Internal error Make a reset; if error occurs repeatedly, replace the LMV37.4
56 # Internal error Make a reset; if error occurs repeatedly, replace the LMV37.4
57 # Internal error Make a reset; if error occurs repeatedly, replace the LMV37.4
58 # Internal error Make a reset; if error occurs repeatedly, replace the LMV37.4
60 # Internal error: No valid load controller source
0 Internal fault: No valid load controller source
Reset; if error occurs repeatedly, replace the LMV37.4.
1 Analog output preset valid – prevention of startup
1. Check wiring of analog predefined output to see if there is an open-circuit / loose contact.
2. LMV37.4.520A1: When the trim function is activated (parameter 530), the default output must
not be on invalid if the Modbus communication (parameter 148 / 149) is interrupted.
2 Analog output preset valid – default output low-fire
1. Check wiring of analog predefined output to see if there is an open-circuit / loose contact.
2. LMV37.4.520A1: When the trim function is activated (parameter 530), the default output must
not be on invalid if the Modbus communication (parameter 148 / 149) is interrupted.

Note!
This information is provided in connection with the thermal shock protection
function (manual interruption of 4...20 mA analog input)
61 Fuel Chg # Fuel changeover
Fuel Chg
0 Fuel 0
No error - change to Fuel 0
Fuel Chg
1 Fuel 1
No error - change to Fuel 1
62 Fuel Err # Invalid fuel signals / fuel information
Fuel Err
0 Invalid fuel selection (Fuel 0 + 1 = 0)
Check wiring to see if there is an open-circuit

Note
Curves cannot be set
Fuel Err
1 Different fuel selection between the µCs
Make a reset; if error occurs repeatedly, replace the LMV37.4
Fuel Err
2 Different fuel signals between the µCs
Make a reset; if error occurs repeatedly, replace the LMV37.4
Fuel Err
3 Invalid fuel selection (Fuel 0 + 1 = 1)
Check wiring for short-circuit

Note
Curves cannot be set.
LMV37.4: Optional press reset button >3 seconds.
65 # Internal error Make a reset; if error occurs repeatedly, replace the LMV37.4
66 # Internal error Make a reset; if error occurs repeatedly, replace the LMV37.4

Siemens LMV37.4 Series Specifications

General

Brand	Siemens
Model	LMV37.4 Series
Category	Controller
Language	English