Output Oil Pump / Magnetic Clutch, Type No-Si X6-02; (Start) X4-03 - Siemens LMV5 Series Basic Documentation

Output oil pump /
magnetic clutch,
type No-SI
X6–02
Output «Start signal»
or «PS valve»
(APS test valve) type No-SI
(START)
X4–03
40/278
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a) Applications with a separate oil pump or magnetic clutch
This output can be used for connecting an oil pump or a magnetic clutch for an oil
pump.
The switch-on time can be parameterized together with preignition. In the case of dual-
fuel burners, short preignition must be used (Phase 38). In the case of long preignition,
the oil pump is switched on in Phase 22 together with ignition; in the case of short
preignition, in Phase 38.
With the heavy oil programs (heavy oil HO, heavy oil with gas pilot), the oil pump with
short preignition is already activated in Phase 36 to ensure oil pressure is available
when circulation starts.
Parameter:
OilPumpCoupling (Magneticcoupl)
Parameter:
IgnOilPumpStart (on in Ph38 / on in Ph22)
b) Single-fuel applications with direct coupled oil pump
On applications where the oil pump is coupled directly to the fan motor, the safety oil
valve (SV) can be connected to that output. The output is always activated when the
fan operates, plus another 15 seconds after the fan has been switched off. If
«Directcoupl» is selected, long preignition will automatically become active. Direct
coupling is only permitted in the case of oil-firing only.
Parameter:
OilPumpCoupling (Directcoupl)
Note:
With both variants, parameter OnTmeOilIgnition can be left on «On in Ph38». The short
or long preignition will then automatically be correct, depending on the selection of
OilPumpCoupling.
Depending on parameterization, the output can be used for a start signal or for a PS
relieve valve.
a) Parameter:
Start/PS-Valve (StartSignal)
The start signal is used for controlling an outside air damper. When actuating the air
damper's end switch, which is fed back to the start release inputs of the LMV5..., the
startup sequence will be continued.
b) Parameter:
Start/PS-Valve (PS Relief)
In this configuration, a 3-port valve for testing (no pressure) the air pressure switch
(APS) can be connected. During the test, the valve is controlled.
c) Parameter:
Start/PS-Valvel (PS Relief_Inv)
When using this configuration, a valve for testing (no pressure) the air pressure switch
(APS) can be connected. The valve is controlled while the fan is running. During the
test, the valve is deenergized.
This valve is required when parameterizing NormDirectStart (NormalStart / DirectStart)
→ direct start for testing the air pressure switch if ContinuousPurge is parameterized
(activated) → continuous purging.
Basic Documentation LMV51...
4 Burner control
CC1P7550en
01.10.2003