Siemens LMV5 Quick Start Manual page 39

LMV5x
Terminal
Blower Motor Starter
Operation is not changed by the addition of a VSD
Pin1
Using a contactor is not recommended with a VSD
X3-01
(ContinuousPurge, PostpurgeLockout)
Alarm Horn Can be de-energized with alarm silence on AZL
Pin2
(AlarmStartPrev, Alarm act/deact)
Blower Air Pressure Switch
Must close, after the blower is started until a programmable
Pin 1 period after the air actuator reaches purge position
X3-02
Must open, after the blower shuts off
(AirPressureTest, FanRunupTme)
Pin 2 Line
Burner Flange Limit Switch
Pin 1
(Part of safety loop) If not used jumper to X3-03 Pin 2
X3-03
Pin 2 Internally Jumpered to X3-04 Pin 1
Safety Loop
Pin 1 Encompasses: Low-Low water control, high limit, excess
temp, etc...
Pin 2 Line
Protective Earth Ground (Chassis Ground)
Pin 3
Note: Internally connected to all PE pins to simplify wiring
X3-04
Neutral
Pin 4
Note: Internally connected to all Neutral pins to simplify wiring
Main Power Line Voltage
Pin 5 Note: Internally fused (6.3A), supplies Line voltage to many
LMV terminals, to simplify wiring
Pin 1 Fuel Select
Power X4-01 Pin 1 to externally select Gas
Power X4-01 Pin 2 to externally select Oil
Pin 2
If neither, X4-01 Pin 1 nor X4-01 Pin 2 is powered,
fuel select is internal, via ModBus or AZL
X4-01
Blower Motor Starter Aux Contact
Pin 3 Typical is FCC, or FGR Pressure Switch
FCC = Fan Contactor Contact (FGR-PS/FCC)
Remote Reset If in alarm, power will cause reset,
Pin 4
if not in alarm, power will cause a manual lockout
Pin 1
Protective Earth Ground
X4-02 Pin 2 Neutral
Pin 3 Ignition Transformer
Pin 1 Protective Earth Ground
Pin 2 Neutral
X4-03
Start Signal Typical, to open outside air damper, or
Pin3 Air Pressure Switch Test, if direct start is used
(Start/PS-Valve, ContinuousPurge, NormDirectStart)
Note: Total combined load of all of all 120VAC outputs cannot exceed 5 amps.
LMV5 QSG Rev 4
Figure 3-2.2 X3 and X4
Description / Notes
Internally Jumpered to X3-03 Pin 2
Sec 3
(related Parameter)
(MainsFrequency)
Pg 7 www.scccombustion.com
Type Rating
Programable
1A, 120V
Output
Programable
1.5mA, 120V
Input
Line 500 mA, 120V
Input
5A, 120V
Jumper
Input
5A, 120V
Line
PE
N/A
N
Programable
6.3A, 120V
Line
Input
1.5mA, 120V
Programable
Input
Input
PE
N/A
N
Output 1.6 A, 120V
PE
N/A
N
Programable
0.5A, 120V
Output