Siemens LMV3 series, Технические инструкции, Страница: 59 / 224

LMV Series
Technical Instructions
LV3-1000
Gas Oil Gas Oil U/S/O Default Range Description
Parameter #
Fuel 0 Fuel 1
LEGEND - Password Access: U = User, S = Service, O = OEM, U/S = View - User, Write - Service, S/O = View - Service, Write - OEM
Shaded Parameters = Frequently Used. ** Parameters = Must Set. Fuel 1 parameters for LMV36 only.
Parameter Name
Ratio Control** S Not set Points 0-9
This is where actuator position curves and VSD speed curves are set from low to high fire. These position
curves determine the fuel-air ratio for the burner across the firing range. Nine points must be set from low
to high fire (P1-P9) in addition to the ignition point (P0). See Section 4 for more information on
commissioning.
Special Position Fuel
00 = 0°
01 = 0°
02 = 15°
0-90°
This sets the special positions for the fuel actuator:
Index 00 = home position
Index 01 = prepurge position
Index 02 = postpurge position
Special Position Air
00 = 0°
01 = 90°
02 = 45° 0-90°
This sets the special positions for the air actuator:
Index 00 = home position
Index 01 = prepurge position
Index 02 = postpurge position
Special Position VSD
00 = 0%
01 = 100%
02 = 50%
0-100%
This sets the special positions for the VSD / PWM blower:
Index 00 = home position
Index 01 = prepurge position
Index 02 = postpurge position
Ramp Up VSD 10 sec 5-40 sec
This sets the speed that the VSD ramps up. This setting is active during modulation as well as driving to
special positions (home, prepurge, ignition, postpurge). Large blowers typically require a longer ramp up.
Ramp Down VSD 10 sec 5-40 sec
This sets the speed that the VSD ramps down. This setting is active during modulation as well as driving to
special positions (home, prepurge, ignition, postpurge). Large blowers typically require a longer ramp
down.
Separate VSD Ramp 0 0-2
When activated, this allows the air damper to be at purge position when the VSD is ramping to ignition or
home position. This provides a braking effect to allow the VSD to ramp down more quickly.
0 = deactivated
1 = activated
2 = activated (50% higher tolerances when fuel valves closed)
S
502 505
503 506
522
523
500 Level: Special Positions / Modulation Ramps / VSD Speed Shift
400 Level: Fuel - Air Ratio Curves
400
529
501 504
SCC Inc. Page 11 Section 3