Siemens LMV5 Quick Start Manual page 145

Error Diag.
Device Display
code code
1A 01 Slope too steep A section of actuator curve is too steep.
Operation in
1B Any # Parameter
Setting Mode Quit
LMV5
Any #
01..3F
Ignition Pos not
1C
defined
01
02
04
08
10
20
LMV5 QSG Rev 4
Meaning for the LMV5x system
Fault with Actuator (VSD) Positioning, Actuator (VSD) Run Time
Curve Parameters (actuator curves) programming mode is still
active in Phase 62 (drive to low fire and shutdown) and the
target positions (normal operation) have not been reached.
Ignition positions for activated actuators (or VSD) have not
been set. See diagnostic code to indicate the faulted actuator.
The diagnostic value is made up of the following faults or their
combinations (the individual diagnostic codes are added up in
hexadecimal format)
Ignition position for air actuator not set.
Ignition position for active fuel actuator not set.
Ignition position for aux1 actuator not set.
Ignition position for aux2 actuator not set.
Ignition position for VSD not set.
Ignition position for aux3 actuator not set.
Sec 5 Pg 19
Corrective action
Check maximum slope sections of actuator curves.
Maximum allowabe slopes are as follows:
- 3.6° per 0.1 % Load (30 sec ramp)
- 1.8° per 0.1 % Load (60 sec ramp)
- 0.9° per 0.1 % Load (120 sec ramp)
If these maximums are exceeded, adjust curve section
below these maximum slopes.
When setting the curve parameters, the plant should be
operated in manual mode with "Burner on". This
prevents the internal load controller from triggering the
change to shutdown. Response of the internal
Temperature Limiter can trigger this same fault.
However, the curve point currently being set can still be
stored in standby or lockout.
Set the ignition position of the actuator(s). The ignition
positions for each fuel are independent, and the
positions are also independent of the low fire position.
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