Siemens LMV5 Quick Start Manual page 83

Menu Path Parameter
AlarmDelay
DelayStartPrev
Params & Display>
BurnerControl>
Times>
TimesGeneral
PostpurgeLockout
MaxTmeStartRel
AlarmStartPrev
ShutdwnStbyOnErr
Params & Display>
NormDirectStart
BurnerControl>
Configuration>
ConfigGeneral
OilPumpCoupling
IgnOilPumpStart
LMV5 QSG Rev 4
U = User O = OEM
S = Service
If a condition exists that does not open the safety loop but does prevent the LMV from starting when there is
a call for heat, this specifies the period of time that can elapse with this condition before the alarm is
energized. If AlarmStartPrev (alarm in the case of start prevention) is disabled, setting this time has no
effect. Range = 0.4 to 630 sec. Def / Typ = 1 sec. See Section 5 under "Other common errors"
S
Delay Start Prevention: Period of time before a start prevention is displayed on the AZL.
When there is a call for heat, and a start prevention occurs that does not open the safety loop
but does prevent the LMV from starting, this specifies the period of time that can elapse
before the condition is displayed on the AZL.
Range = 0.4 to 630 sec. Def = 35 sec. Typ = 1 sec.See Section 5 under "Other common errors"
If a lockout condition occurs, and the combustion air fan was running (OUTPUT terminal X3-01.01) it will
continue running in the lockout phase (Phase 00) for this period of time. This time replaces the postpurge
S
time in the event of a lockout. If the combustion air fan was not running the fan will remain off for the rest
of the lockout phase. Range = 0.2 to 63min Def / Typ = 2 min
When the LMV gets a call for heat, this is the maximum time the LMV will hold (in phase 21) waiting for a
start release to make. If this time expires and the start release is not made, the LMV will go into alarm.
O
Range = 0.2 to 63 sec, Def = 120 sec, Typ = 30 sec.
See: Params & Display > Burner Control > Times >Times Startup1 > MinTmeStartRel
Alarm Start Prevention - Determines if the alarm (Terminal X3-01.02) will be energized in the event of a start
S prevention. DelayStartPrev defines how long the LMV will wait before alarming. Def = deactivated, Typ =
activated.
If this is set to activated, an alarm will occur if the safety loop is opened in Phase 12 (Standby) if deactivated,
O
the safety loop can be open when the LMV is in Phase 12. Def / Typ = deactivated
Determines if the LMV can eliminate the optional postpurge (T3) time, and go directly into prepurge if there is
S a call for heat during postpurge. If set to DirectStart, a 3-way valve (on OUTPUT X4-03.03) must be used to
check the fan air switch. Def / Typ = NormalStart
Combined with IgnOilPumpStart determines the behavior of the oil pump motor starter (OUTPUT X6-02.03)
during oil firing. Magnetcoupl - the output will energize, in either phase 22 or 38, depending on the setting of
IgnOilPumpStart. De-energizes as soon as V1 & V1 are closed (in a cycle off situation). Directcoupl - the
S
output will energize at the same time as the fan, and de-energizes 15 seconds after the fan is deenergized.
Def / Typ = Magnetcoupl
When Magnetcoupl is selected, this setting determines when terminal X6-02.03 is energized. Def = on in
Ph22, Typ = on in Ph38, Note: If a direct spark oil train is selected, spark will occur during prepurge if set to
O
Ph22.
Sec 4 Pg 27
Descriptions / Notes
12 -
20
12 -
20
00
21
20-22
12
78
22-
38,
62
22-38
www.scccombustion.com