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Dual frequency (DF)
The Dual frequency option allows the unit to work at
50 Hz or at 60 Hz at constant load. The frequency
selection is done by means of switch S12.
R12 ..... Voltage adjustment
Allows to adjust the output voltage.
S12 ..... Frequency selector switch (50 Hz/
60 Hz)
Allows to choose the frequency of the output
voltage: 50 Hz or 60 Hz.
Low voltage (LV)
The Low voltage option allows to run the unit at low
voltage (= high current).
Q1 .......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 (QAS 14: 50 Hz-32 A, 60 Hz-
40 A, QAS 20: 50 Hz-50 A, 60 Hz-63 A) is
activated. It must be reset manually after
eliminating the problem.
Single phase
The Single phase option provides single phase output
voltage (e.g. 230 V).
X1 .......Main power supply (230/240 V AC)
Terminals L1, L2 and PE (= earthing),
hidden behind the control panel door and
behind a small transparent door.
Q1 .......Circuit breaker for single phase
operation
Interrupts phases L1 and L2 towards X1
when a short-circuit occurs at the load side
or when the overcurrent protection (QAS 14:
40 A, QAS 20: 63 A) is activated. It must be
reset manually after eliminating the
problem.
Changing the output frequency is
only allowed after shutdown.
After changing the output
frequency, adjust the output voltage
by means of potentiometer R12 to
the required value.
H0
S20
F10
R12
S12
P4
P3
0
0
20
40
80
100
200
V
A
300
400
500
Qc 1002
145
S12
R12
!
All the cables that are used must be
suitable for high current.
!
L1 L2 L3 N
PE
Reset
Test
On
Fault
Q1
X1
N13
Q1
X1
L1 L2
PE
Reset
Test
On
Fault
Q1
X1
N13
Q1
X1
Содержание QAS 14
Страница 1: ...QAS 14 20 Kd Instruction Manual for AC Generators English...
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Страница 81: ...81 Circuit diagrams...
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Страница 100: ...Printed in Belgium 11 2010 2954 3380 04 www atlascopco com...