11
VAC-SIF-05
Training & Maintenance Manual
CVX0260B
Parker Hannifin Corporation
Pneumatic Division
Richland, Michigan
www.parker.com/pneumatic
Unit will not Air Economize
A de-energized Auxiliary Valve enables the
Check Output Power to
Auxiliary valve (item 5) should be
Emergency Stop Mode. With a part on,
Auxiliary Valve
energized, LED illuminated.
system pressure above P_3, the air
economize function is overridden. This is the
normal function of the CVX0260B Unit.
Part off degree of vacuum should be less
than n_1 and n_1 should be more than the
Log Part On and maximum system
initial part on pressure. If n_1 is set to higher
vacuum pressure. H-1 must be greater
than maximum obtainable degree of vacuum,
than than part on pressure, but less
the unit will not air economize.
than maximum vacuum pressure.
Maximum system vacuum can be
Reduce the pressure lose in the tube to
verified by pressing the up arrow key
decrease Part off Pressure.
1 time. Cycle Input power to reset.
Check Exhaust and Vacuum Filters to
decrease Part off and increase Part on
pressure.
Adjust n_1 to meet system parameters.
Check that the Sensor Output LED 1
If Sensor Output 1 is set Normally Open,
Verify H-1,
is illuminated at 0 inhg.ou1 = <N.C.>.
<N.O.>, no signal will be passed through the
Air Economizing Setting.
Sensor Output 1 must be set to
sensor to activate the vacuum pilot from the
Normally Closed, Passing when
PLC/PC. Program Sensor Output 1 (ou1) to
Vacuum is off, 0 inhg. Sensor
<N.O.>.
Output 1 LED
Manually changing sensor OU1 from <N.C.>
to <N.O.>. LED should change state. See
Sensor Programming for changing Output
status.
Verify that Sensor Output LED 1 turns
IF Yes – Sensor is working, but change of
OFF and ON (OFF indicates a
signal is not communicating to the PLC/PC.
<NC>, OFF indicates <NO>
Check Wiring and Programming. Save in
<N.O.) setting.
IF No – Sensor is not working. Change
Sensor (MPS-V23C-NC replacement part
number). Save in <N.O.> setting.
Unit will Air Economize, but cycles at a high rate. ( Motor Boating)
The unit is turning off - air economizing,
System is Operational
but does not hold pressure long enough
Decrease the leakage in the vacuum system
and turns on at a rapid rate. Leakage in
which is creating the loss of vacuum
the vacuum system is too great.
pressure.
Adjust H-1 and h-1 settings. See Sensor
n_2 may be too small.
Programming. Unit will have to be put in EZY
Verify n_1 and n_2 settings.
Lower for longer Off Cycles.
Important: P_3 < n_2 must be true or part
Mode OFF in order to change setting.
present signal will change state during air
economizing.
Technical Information
