Triple Voltage With Switch (3V-Sw); Remote Start (Rs) - Atlas Copco Qas 108Jd Manuel D'instructions

Q4 ... .. Circuit breaker
Interrupts phases L1 and L2 towards X4 when a short circuit
occurs at the load side or when the over current protection is
activated. It must be manually reset after eliminating the
problem.
Q5 ... .. Circuit breaker
Interrupts phases L1 and L2 towards X5 when a short circuit
occurs at the load side or when the over current protection is
activated. It must be manually reset after eliminating the
problem.
X1 ... .. Main power supply
Terminals L1, L2, L3, N ( = neutral) and PE ( = grounding),
hidden behind the control panel door and behind a transparent
door.
X2 ... .. Single phase outlet socket
Provides phases L1, L2 and N.
X3 ... .. Single phase outlet socket
Provides phases L1, L2 and N.
X4 ... .. Single phase outlet socket
Provides phases L1, L2 and N.
X5 ... .. Single phase outlet socket
Provides phases L1, N, and PE.
R11 ... .. Output voltage adjust potentiometer
Allows to adjust the output voltage, R11 is located on the
control and indicator panel.
S2 ... .. Emergency Stop Button
Push the button to stop the generator in case of an
emergency. When the button is pressed, it must be unlocked
by turning it counter clockwise, before the generator can be
started.

TRIPLE VOLTAGE WITH SWITCH (3V-SW)

The generator can run in three different modes:
1 phase
-
3 phase, lower voltage
-
3 phase higher 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 be means of the auxiliary voltage selection
relays K11 and K12 (refer to circuit diagram).
The selection between the three modes is done by means of S10.
S10 ... . Output voltage selector switch
1310 3011 38
Allows selection of a 3-phase high output voltage, a 3-phase
phase low output voltage or a 1-phase low output voltage.
Selector switch S10 is located on the alternator.
Changing the output voltage is only allowed after
shutting the unit down. After changing the output voltage
be means of the selection switch S10, adjust the output
voltage by means of the potentiometer R11 to the required
value.
1 phase
When using this selection, the generator provides a 120/240V-output
voltage.
Q1.1 ... .. Circuit breaker for low voltage
Interrupts the low voltage power supply towards X1when a
short circuit occurs at the load side or when the over current
protection is activated. It must be manually reset after
eliminating the problem.
3 phase lower voltage
When using this selection, the generator provides a 120/208/240 V
output voltage.
Q1.1 ... .. Circuit breaker for low voltage
Interrupts the low voltage power supply towards X1when a
short circuit occurs at the load side or when the over current
protection is activated. It must be manually reset after
eliminating the problem.
3 phase higher voltage
When using this selection, the generator provides a 277/470/480 V
output voltage.
Q1.2 ... .. Circuit breaker for high voltage
Interrupts the high voltage power supply towards X1when a
short circuit occurs at the load side or when the over current
protection is activated. It must be manually reset after
eliminating the problem.

REMOTE START (RS)

" Remote start" allows the user to switch the unit on or off without
using the control panel located on the unit. The start module of the
control panel provides extra connections for the remote start/stop
switch and the plant contactor (voltage free contact), both to be
installed by the customer.
The plant contactor should be sized according to the load. The
maximum current through the voltage free contact is 3A.
The remote start/stop switch Sx has to meet the following
specifications: 12 V DC, 10 A.
Refer to the circuit diagram for the correct connection of the plant
contactor and the remote start/stop switch.
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