Utah-94-721002-System-Manual.pdf - 第229页
System Manual lñÑçêÇ= fåëíêìãÉ åíë=m ä~ëã~ = qÉÅÜåçäçÖó== lfmq=póëíÉãë QK= `çãéêÉëëÉÇ=~áê= A dry and clean compressed air supply at a minimum pressur e of 6 bar (90 psig) must be fed to a customer-supplied air filter/mis…
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“WARNING.
High leakage current.
Earth connection essential before connecting supply."
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WARNING
THE NEUTRAL CONDUCTOR MUST BE BONDED TO THE EARTH (GROUND)
CONDUCTOR. IF THIS IS NOT DONE ALREADY IN THE FACTORY SUPPLY, THEN IT
MUST BE DONE AT THE SAFETY ISOLATION BOX AS SHOWN IN Fig 3.1. IF AN
ISOLATING TRANSFORMER IS FITTED, THEN THE NEUTRAL CONDUCTOR OF THE
TRANSFORMER SECONDARY MUST BE BONDED TO THE EARTH (GROUND)
CONDUCTOR.
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Customers sometimes wish to fit a Residual Current Circuit Breaker (RCCB), also known as an
Earth Leakage Circuit Breaker (ELCB, or ELB) to the electrical supply to the system. This is not
recommended for this type of equipment, and a 30mA breaker is likely to trip often, due to
the leakage caused by the filters on the power lines. This leakage is in accordance with
International standard IEC950 section 5.2.
a) If you must fit an ELB, we strongly recommend a minimum current of 100mA.
b) Even a 100mA circuit breaker may trip, and we accept no responsibility if this turns
out to be the case.
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• Connection: In accordance with local regulations via a safety isolation
box, lockable in the OFF position, mounted adjacent to the
machine.
• Configuration: 3-phase, star ("Y") with a grounded neutral supply
connected to the centre point. An independent earth
(ground) is required.
• Maximum
Current:
The Maximum Current required by the system is given in the
relevant system installation data sheets.
• Voltage &
Frequency:
380V -10% to 415V +6% or 208V +/-10% phase-to-phase.
Frequency to be 50Hz or 60Hz. Note that voltage and
frequency cannot be changed from the values specified at
the time of ordering.
• Safety
Earthing:
The system safety earthing must be in accordance with local
Electrical Regulations. See Fig 3.1.
Services Specifications
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System Manual lñÑçêÇ=fåëíêìãÉåíë=mä~ëã~=qÉÅÜåçäçÖó== lfmq=póëíÉãë
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A dry and clean compressed air supply at a minimum pressure of 6 bar (90 psig) must be fed
to a customer-supplied air filter/mist separator/pressure regulator unit mounted adjacent to
the machine. A suitable unit is supplied by SMC (part No. AC 2030); other units to the same
specification can be used. Maximum safe pressure in the customer's feed to the regulator
is determined by the regulator used (9.9 bar (148.5 psig) for the SMC unit).
The supply to the system must be monitored by a pressure gauge having a range of 0 to 10
bar (0 to 150 psi). The pressure regulator must be fitted with a stop to prevent a pressure
greater than 6 bar from being supplied to the system. The pressure to be used will be set
during commissioning of the system.
The following air filter/mist separator/pressure regulator unit components are recommended:
Air filter: SMC AF2000-02D with filter element 1129116A.
Mist separator:
SMC AFD2000-02D with filter element 63092. This filter element
must be changed annually. Note that as this item is not
supplied by OIPT, its maintenance is not included in the system
manuals.
Regulator with gauge: SMC AR2001-02G.
Spacers: 2 off SMC Y20L.
FILTER
MIST
SEPARATOR
ADJUSTABLE
PRESSURE
REGULATOR
DRY AND CLEAN
AIR SUPPLY
MINIMUM PRESSURE
6 BAR (90 PSIG)
PRESSURE
GAUGE
0 TO 10 BAR
(0 TO 150 PSIG)
SMC COMPONENTS
OR EQUIVALENT
COMPRESSED
AIR SUPPLY TO
PLASMALAB OR
IONFAB SYSTEM
(SEE SPECIFICATION)
6 MM
PUSH-FIT
CONNECTOR
Fig 4.1: Recommended compressed air supply installation
Services Specifications
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lfmq=póëíÉãë lñÑçêÇ=fåëíêìãÉåíë=mä~ëã~=qÉÅÜåçäçÖó== System Manual
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• Inlet pressure to filter/mist
separator/regulator unit:
6 bar (90 psig) minimum.
OUTLET TO SYSTEM:
• Oil content:
Less than 10 ppm
• Maximum Moisture Content: -3ºC (25ºF)
• Filtration: Maximum particle size of 0.3 microns
• Regulator outlet pressure: Adjustable from 3 bar to 6 bar (45 psig to 90
psig). 6 bar must be the maximum provided.
• Maximum flow rate:
135 litres/minute (5 scfm).
• Pressure monitoring: 0 to 10 bar (0 to 150 psi) pressure gauge.
Services Specifications
Issue 16: April 05 Page 12 of 22 Printed: 6-Jan-06, 8:44