Siemens LMV5 Series Technical Instructions page 236

Error Diag.
Device Display
Code Code
Fault with Actuator (VSD) Positioning or Actuator (VSD) Run Time
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
01 defined
02
04
08
10
20
Section 7
Meaning for the LMV5x System
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.
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Corrective Action
Check maximum slope sections of actuator curves.
Maximum allowable 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. 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.
SCC Inc.