Error
Code
Diag.
Code
Meaning for the LMV3 System
Corrective Action
Note:
Diagnostic codes are additive. If a diagnostic code appears that is not on this list, it is a combination of multiple diagnostic codes.
Any #
Timeout building automation interface
1
Modbus timeout
2
Reserved
Any #
TUV test
A fault occurred during the TUV test. See diagnostic codes for more
information.
1 (-1)
Invalid phase
The TUV test can only be started in phase 60 (operation). Reset the fault.
When the LMV3 reaches phase 60, attempt to start the TUV test again.
2 (-2)
TUV test default output too low
The TUV test default output (parameter 133/134) cannot be set lower than
the lower load limit (parameter 545/565). Either increase the TUV test
default output or decrease the lower load limit, then reset the fault.
3 (-3)
TUV test default output too high
The TUV test default output (parameter 133/134) cannot be set higher
than the upper load limit (parameter 546/566). Either decrease the TUV
test default output or increase the upper load limit, then reset the fault.
4 (-4)
Manual interruption
No fault: The TUV test was aborted manually by the user.
5 (-5)
TUV test timeout
There was no loss of flame after shutdown of the fuel valves. Check for
extraneous light or a faulty flame scanner, then reset the fault and start
the TUV test again.
Any #
Trim function: Invalid analog value
1
Start prevention
2
Warning (trim function temporarily disabled)
Any #
Trim function: Invalid curve setting of VSD / PWM blower
The following equations set the limits on the curve settings for the VSD /
PWM blower.
Fuel 0: Parameter 669:00 + parameter 547 ≤ curve point ≤ parameter
669:01 - parameter 548
Fuel 1: Parameter 669:00 + parameter 567 ≤ curve point ≤ parameter
669:01 - parameter 568
1-9
Minimum value VSD curve invalid
A VSD curve point is below the permissible minimum value (diagnostic
code = point number, example: 1 = point P1)
21-29
Maximum value VSD curve invalid
A VSD curve point is above the permissible maximum value (diagnostic
code = point number, example: 21 = point P1)
41-49
Fuel 1: Minimum value VSD curve invalid
Fuel 1: A VSD curve point is below the permissible minimum value
(diagnostic code = point number, example: 41 = point P1)
61-69
Fuel 1: Maximum value VSD curve invalid
Fuel 1: A VSD curve point is above the permissible maximum value
(diagnostic code = point number, example: 61 = point P1)
155
146
150
154
Modbus communication has been interrupted for longer than the setting
of parameter 142. Re-establish communication, then reset the fault.
An invalid 4-20 mA signal was detected on input X64. Check the wiring to
terminal X64. Check the value of parameter 916. A value under -16%
indicates <4 mA is being detected, while a value over 26% indicates >20
mA is being detected.
Section 6
Page 20
SCC Inc.
Содержание LMV3 series
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