Siemens LMV5 Series Technical Instructions page 233

Error Diag.
Device Display
Code Code
Fault with devices or wiring connected to the Base Unit (LMV5)
11
12
13
14
15
10
16
Devices
17
Internal Fault
conn. to
18
Basic Unit
LMV5
19
1A
1B
11 01
Fault Positioning
Actuator or Fan
Any #
Actuator /
Speed Not
VSD
Reached
Control
01-3F
Air
01
Actuator
Fault Positioning
Active
02 Actuator
15
Fuel
Aux1
04
Actuator
Aux2
08
Actuator
VSD Fan Speed Not
10
module Reached
Aux3 Fault Positioning
20
Actuator Actuator
VSD Fan Speed Not
40
Module Reached
Section 7
Meaning for the LMV5x System
Safety chain burner flange
Safety relay feedback
Pressure switch gas minimum
Pressure switch gas maximum
Ignition transformer feedback
Fan pressure switch
Start release oil
Heavy oil direct start
Load controller open
Load controller closed
Start release gas
Basic unit has detected a short-circuit in the contact feedback
network
Fault with Connected actuators or VSD
LMV5 has detected a positioning error on one or several
actuators, or the VSD module if equipped.
The diagnostic value is made up of the following faults or their
combinations (the individual diagnostic codes are added up in
hexadecimal format)
Positioning fault air actuator
Positioning fault fuel actuator
Positioning fault auxiliary actuator 1
Positioning fault auxiliary actuator 2
The fan in combination with the VSD has not reached the
required speed
Positioning fault auxiliary actuator 3
The difference of actual value and speed setpoint is greater
than permitted by parameter TolQuickShutdown
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Corrective Action
1) Check connections of the neutrals to all of the
connected switches, valves, etc...
2) Check for inductive loads that cause voltage to be
present on the terminal after the LMV de-energizes the
terminal. If voltage exists on an output terminal, such as
a fuel valve, after the LMV de-energizes the terminal,
this will cause a fault. Voltage must drop to zero on the
terminal within about 10 ms after the terminal is de-
energized.
If error occurs on one actuator only :
1) Ensure torque requirements of dampers / valves are
less than actuator output. Actuators running over rated
50% duty cycle may have significantly reduced torque
output.
2) Verify that no damper / valve is bound.
3) If 1 and 2 do not solve the problem: replace actuator.
If error occurs on multiple actuators (01-3F) :
1) Verify that the CANBus wiring is correct.
2) Verify that shields (screens) on CANBus cables are
connected properly.
If error occurs on VSD :
1) Check speed sensor on motor for correct installation,
especially gap between sensor and wheel.
2) Check for filters, damping, and / or delays on the
input signal to the VSD. The VSD should respond to
the input signal in a linear fashion. Extend VSD and
LMV5 ramp times.
SCC Inc.