Onan MicroLite 4000 Series User Manual

6-29
Spec A Generator AC Output Mode
When the engine starts and begins to come up to speed, AC voltage is produced in the battery charge winding B1-B2,
the quadrature winding Q1-Q2 and in the AC windings T1-T2. These outputs perform the following functions:
• The battery charge winding B1-B2 is used to power the control assembly (A1), fuel pump (E2), the remote con-
trol, and to prevent discharge of the genset starting battery during genset operation. This output is not sufficient
to charge a low or dead battery. The control assembly A1 monitors this voltage as part of the start disconnect
function.
• The quadrature winding Q1-Q2 output voltage is fed to the voltage regulator VR1 where it is rectified into DC
voltage and fed back to the rotor through the brushes to cause further voltage buildup. Voltage buildup is con-
trolled by the voltage regulator that senses the AC output voltage. The regulator continually measures the output
voltage and compares it to an internal reference voltage. When the output voltage exceeds the reference, the
regulator causes the current in the rotor to decrease until the proper voltage is obtained.
• The AC windings T1-T2 provide the 120 VAC output voltage through the circuit breaker CB1.
CONTROL
ASSEMBLY A1
START/STOP
SWITCH S1
BRIDGE
RECTIFIER CR1
FUSE F1
BATTERY BT1
VOLTAGE
REGULATOR VR1
J4 CONNECTOR
P4 CONNECTOR
BRUSH
BLOCK
CIRCUIT BREAKER CB1
GND
L1 (LOAD)
L2 (NEUT)
120 VAC
BATTERY CHARGE
RESISTOR R1
STATOR
CONNECTORS
J1 CONNECTOR
P1 CONNECTOR
FIGURE 6-15. SPEC A GENERATOR OUTPUT MODE

Onan MicroLite 4000 Series Specifications

General

Brand	Onan
Model	MicroLite 4000 Series
Category	Portable Generator
Language	English