Generac Power Systems 7 kW NG User Manual

PART 4
ENGINE/DC CONTROL
Page 96
Section 4.3
Operational Analysis
INTRODUCTION
The “Operational Analysis” is intended to familiarize the service technician with the operation of the DC and AC control system. A
through understanding of how the system works is essential to sound and logical troubleshooting. The control system illustrations
on the following pages represent a 17kW unit.
UTILITY SOURCE VOLTAGE AVAILABLE
Refer to Figure 94. The circuit condition with the AUTO-OFF-MANUAL switch set to the AUTO position and with Utility source power
available can be briefly described as follows:
•Utility source voltage is available to the transfer switch Terminal Lugs N1 and N2 and the CONTACTOR is in the “Utility” position.
•Utility voltage is available to the controller via Wire N1 and N2 (see to Figure 92).
•Battery voltage is available to the controller via Wire 13 when a Battery is installed (see Figure 93).
NEUTRAL
INPUT
UTILITY
240 VAC
N1
T1
00 2
N2
44
11
0
4
6
T1
N2
N1
T1
N2
N1
00
6
4
0
11
44
LOAD SUPPLY
120 VAC
WHT00
MOV
T1A
N2AN1A
N2N1
1
2 N2B
N1B
1
CONNECT
240Vac
2
BATTERY WARMER
OPTIONAL
CONNECT
240Vac
OIL WARMER
OPTIONAL
BATTERY CHARGER
Running - Utility Loss
J5
PRINTED CIRCUIT BOARD
CONTROLLER
J4
18171615141312109 1186 721 43 5 2322212019
141312109 1186 721 43 5
0
BATTERY
0 13
16
13
SCR
SM
SC
13 13
Ready to Run
F1
TO PCB
J3
J5
PRINTED CIRCUIT BOARD
CONTROLLER
J4
18171615141312109 1186 721 43 5 2322212019
141312109 1186 721 43 5
Figure 92.
Figure 93.

Generac Power Systems 7 kW NG Specifications

General

Brand	Generac Power Systems
Model	7 kW NG
Category	Portable Generator
Language	English