Atlas Copco QAS 500

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X4 .......3-phase outlet socket
Provides phase L1, L2, L3, neutral and
earthing.
X5 .......3-phase outlet socket
Provides phase L1, L2, L3, neutral and
earthing.
X6 .......3-phase outlet socket
Provides phase L1, L2, L3, neutral and
earthing.
9.3.4 Dual voltage (2V)
The generator can run in two different modes:
3 phase, lower voltage
When using this selection, the generator provides a
230 V output voltage.
3 phase, higher voltage
When using this selection, the generator provides a
400 V output voltage.
Q1.1 ....Circuit breaker for low voltage, high
current
Interrupts the low voltage power supply
towards X1 when a short-circuit occurs at
the load side or when the overcurrent
protection (1250 A) is activated. It must be
reset manually after eliminating the
problem.
Q1.2 ....Circuit breaker for high voltage, low
current
Interrupts the high voltage power supply
towards X1 when a short-circuit occurs at
the load side or when the overcurrent
protection (720 A) is activated. It must be
reset manually after eliminating the
problem.
R12......Output voltage adjust potentiometer
Allows to adjust the output voltage.
Depending on which mode the generator is running
in, circuit breaker Q1.1 or Q1.2 will be operational.
Circuit breakers Q1.1 and Q1.2 cannot be switched on
at the same time. This is prevented by means of the
auxiliary voltage selection relays S10b and S10c
(refer to the circuit diagram).
Circuit breaker Q1 does not only
interrupt the power supply towards
socket X1 but also towards X2, X3,
X4, X5 and X6.
Make sure to switch on circuit
breakers Q1, Q2, Q3, Q4, Q5 and Q6
after starting the generator when
power supply is done by means of
X2, X3, X4, X5 and X6.
The dual voltage option is only
available on 50 Hz units, in
combination with the Qc2002™
control panel.
R12
Q1.1
Q1.2
L1L2
OFF
L1-N
L2L3 L2-N
L3L1
LL LN
L3-N
G
Q1.1
Q1.2
N13
AMF operation is not possible with
a dual voltage generator.