Atlas Copco XAHS 37 DD, Instruction Manual

Page: 38 / 64

38
Instruction Manual
3.3 F
UNCTION OF GENERATOR
(
OPTION
)
3.3.1 F
UNCTION OF GENERATOR
DDG 110V
WITHOUT AUTOMATIC CONTROL SYSTEM
-
F
UNCTIONAL DESCRIPTION
Fig. 3.20 Control panel (generator)
H3 Lamp (green, power ON)
S7 Switch (generator - compressor)
X1 Socket 110 V/ 32 A
X2 Socket 110 V/ 16 A
X3 Socket 110 V/ 16 A
GND Terminal earth cable
Fig. 3.21 Earth pin
Start the unit in accordance with the normal procedure (see section
3.2 ). Let the motor warm up until it reaches operational temperature.
Turn the green switch S7 to position 1.
The normal control system is switched off and the motor speed
increases to reach the maximum.
The green lamp H3 in the switch S7 is activated, showing that sockets
X1, X2 and X3 are under tension.
The generator can be switched off by turning the green switch S7 to
position 0.
Fig. 3.22 Generator control box
Q1 Main circuit breaker 2-pole
Q2 Circuit breaker 2-pole
Q3 Circuit breaker 2-pole
Q4 Circuit breaker 2-pole
Fault situations and protective devices:
– When switching on the generator by means of the switch S7,
there is no voltage available at the sockets.
Open the hood and check if the circuit breakers are down.
If so, put them up (switch them on). If the circuit breakers are up,
it can be indicative of a serious electrical fault.
– When the electrical device is connected, the circuit breakers
switch always off. This indicates a fault in the electrical device.
Before switching on the generator, always place the
earth pin in position. Check the cable connection
between earth pin and the GND-terminal on the unit.
X3 H3/S7 GND X2 X1
min 400
Before connecting an electrical device, always check the
data listed on the rating plate.