Section 2
DESCRIPTION
12
automatic restart
after power failure. Two--wire re-
mote Stop/Start input is provided.
Refer t o F igur es
2- 7
and
2- 8
f or s pec ific loc ation of
parts described.
S
The
sump pressure gauge
continually monitors
the sump pressure at the various load and/or unload
conditions.
S
The
discharge temperature gauge
monitors the
temperature of the air leaving the compressor unit.
For both air--cooled and water--cooled compressors
the normal reading is approximately 180
_
F to 205
_
F
(82
_
C to 96
_
C).
S
The
separator maintenance gauge
monitors
condition of the separator element and shows in the
red zone when the element restriction is excessive.
S
The
fluid filter maintenance gauge
monitors the
condition of the bearing lube filter element and
shows in the red zone when the element should be
changed.
S
The
START
(
I
) pad turns the compressor on.
S
The
STOP
(
O
) pad turns the compressor off.
S
The
hourmeter
records cumulative hours of op-
eration for the compressor and is useful for planning
and logging service operations. The hour meter
should be active any time K1 is energized. Meter
rolls over to zero at 100,000 hours.
S
The
POWER ON
(
) LED on the instrument
panel indicates when power to the compressor is
supplied.
S
The
ON
LED indicates when the compressor is
running.
S
The
AUTO
(
) pad is used to enable automatic
control.
S
The
RUN
Status LED indicates that control is in a
standby mode and may start at any moment without
any user intervention when this light is blinking. A
solid light indicates that the machine is running.
2.9 ADDITIONAL FEATURES
Refer t o F igur e
2- 7
for s pec ific loc ation of par ts de-
scribed.
S
A separate input is provided for the
Remote Stop/
Start
feature. A maintained, voltage--free contact is
required for Remote Stop/Start.
S
The
Wye--Delta Transition Timer
-- K4 closed as
soon as K1 closes and remains closed until timer
setting is reached and then opens and stays open
until machine is stopped (Output 8 goes high on
start and drops at timeout).
S
Timer Adjustment
-- Timer adjustment becomes
effective the next time that function is required.
Figure 2-7 Typical Machine Connection
ELECTRO--MECHANICAL
COMPRESSOR
CONTROLLER
AUTO STOP
TIMER
PT1
0
16
BYPASS TIMER
0
16
PT2
WYE--DELTA TIMER
PT3
3
60
AUTO RESTART
SSW1
l
O
REMOTE STOP/START
LOW SUMP
START PERMISSIVE
SUMP PRESSURE
12
6
1
3
1M
MOL HDT LWP E--STOP
RUN STATUS
K3
13
14
K2
11
4
COMMON
FAULT
K4
9
8
1M
LINE PRESSURE
LOAD CTL
SOL VLV
WYE--DELTA
TRANSITION
START CTL
SOL VLV
10
E--STOP
1M
K1
AC GND
15
120V N 5
AC L
7
FU
120V
AC
PIN #
Содержание LS-10 series
Страница 11: ...Section 2 DESCRIPTION 7 Figure 2 3 Comporessor Fluid Cooling Lubrication and Discharge System Air cooled...
Страница 18: ...14 NOTES...
Страница 22: ...Section 3 SPECIFICATIONS 18 Figure 3 1 Wiring Diagram LS12 LS16 Air cooled Water cooled...
Страница 23: ...Section 3 SPECIFICATIONS 19 Figure 3 2 Wiring Diagram LS12 LS16 Air cooled Water cooled Wye Delta...
Страница 24: ...20 NOTES...
Страница 28: ...24 NOTES...
Страница 32: ...28 NOTES...
Страница 35: ...NOTES...
