Siemens LMV5 Quick Start Manual page 142

Error Diag.
Device Display
code code
13
14
15
16
17
10
18
19
1A
Devices
Internal Fault
conn. To
Basic Unit
1B
LMV5
11 01
Fault Positioning
Actuator or Fan
Any #
Speed not
Act. /
reached
VSD
Control
01-3F
01 Air Act.
Fault Positioning
15
Actuator
02 Fuel Act.
04 Aux1 Act.
08 Aux2 Act.
VSD Fan Speed Not
10
module Reached
Fault Positioning
20 Aux3 Act.
Actuator
LMV5 QSG Rev 4
Meaning for the LMV5x system
Fault with devices or wiring connected to the Base Unit (LMV5)
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. Could also be 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) Indicated that more than one actuator /
VSD has problems.
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
Sec 5 Pg 16
Corrective action
1) Check connections of the neutrals to all of the
connected switches, valves, etc...
2) Check for capacitive loads that cause voltage to be
present on the terminal after the LMV deenergizes the
terminal. If voltage exists on an output terminal, such as
a fuel valve, after the LMV denergizes 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 is
less than Actuator 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 cable 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.
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