INSTRUCTION MANUAL OF MC22 CONVUM
Read the instruction manual without fail before using the CONVUM and keep the manual with care.

WARNING① Install a mechanical preventive for safety against unexpected drops of sucked work pieces, if dangerous.
② Avoid use of the CONVUM in locations where corrosive or inflammable gases exists. No suction of such gases by all means.

CAUTION
Caution of piping① In case more than two pads are used with one CONVUM;○ Leakage even by one pad lowers the vacuum condition, which causes suction error.
○ For vacuum piping, use a pipe for between CONVUM and a branch unit with a larger diameter than that for between a branch
unit and pads.
② Use a pipe with larger diameter than specified. In case too small diameter pipes are used for vacuum piping, the vacuum degree
inside CONVUM could increase, which resulting in keeping the vacuum sensor hold ON.
③ For coupling of the vacuum side of convum, use a fitting with side by side 12mm or less(or outer diameter 13mm or less) forjointing section.
④ The inner diameter of piping of the compressed air supply port to manifold type should be 6mm or more.

Caution of operation① Operating temperature range for CONVUM is 5 ℃ to 50 ℃, no use out of the range.(may cause troubles under frozen).
② Compressed air contains a lot of impurities (water, oxidized oil, tar, and foreign particles). This may cause deterioration ofthe functions of the CONVUM. Improve the air quality by dehumidifying with after‑coolers or dryers and also remove tar with tar
removing filters. Do not use lubricators.
③ Rust in piping may cause the malfunction. Install a compressed air filter specified for 5 micro or less filtration close to thesupply port of compressed air of CONVUM.
④ Operate a solenoid valve within a 10% fluctuation of a rating voltage.
⑤ Avoid use of CONVUM under vibration of 30 m/sec‑square or over, impact force 150 m/sec‑square or over.
⑥ Install CONVUM as apart as possible from high‑pressure equipment, high‑voltage cables or power cables that may emit noises.
⑦ Water droplets spattered directly on the solenoid valve may cause short circuits or coil burnouts. Protect CONVUM with a cover orby installing inside a panel.
⑧ Moisture, oil, salinity, metal chips etc. may cause deteriorations in functions. Avoid suction of those materials.

Caution of maintenance① Switch off power without fail when disassembling or changing components.
② Assembling or disassembling should be done by trained personnel.
③ Do not lose components when assembling or disassembling.
④ When disassembling, take a goggle for protection. Spring parts may jump out of the equipment.
⑤ When the length of a vacuum piping is 1.5m or more, take time more vacuum generating and vacuum breaking respectively.
⑥ Avoid the operation of the vacuum break control solenoid valve under the vacuum generation.
⑦ Supply air pressure on manifold: 0.53〜0.55MPa⑧ Standard clamping torques of installing each screw are M1.7: 0.05N･m/ M2: 0.07N･m/ M2.5: 0.16N･m⑨ It is essential that filter elements be periodically cleaned or exchanged if necessary, because of logging of impurities which
may cause inferior vacuum degree.

As for vacuum sensors( MVS/MPS series), refer to the instruction manual as per separate sheets.

Accessories
MODEL
MC22 single

AccessoriesRemarks

Screws

M3×25 with plain washer

Socket( lead wire:300mm long)

CautionFix the metal parts tightly with a spanner or something in case the fitting of coupling for the air supply port.

Spanner

Q'TY22

Operation(◎function,○caution)
Supply side piping○Inside diameter of hose at air‑supply side
…φ4mm or over(If the length of hose being used exceeds
2m, use hose with larger inside diameter.)(Use a hose with inside diameter over
φ6mm when using manifold type. Use one
size larger when the pipe length exceeds
2m.)○Smaller inner diameter of hose and joints
than specified may reduce the pressure,flow and vacuum performance.
Filter regulator○Be sure to keep the specified pressure
and air‑flow rate stable.
○The operating pressure( 0.5MPa) is
specified at the air supply port
during vacuum by COMVUM generating.
Adjust the operating pressure bytaking pressure drop into account.
○Filter should be drained periodically( Be sure to drain frequently
especially when air humidity ishigh.)○Never use a lubricator.

Silencer◎To decrease the noise of exhausted air fromCOMVUM.

Vacuum‑breaking control solenoid valve◎This solenoid valve is for quick and no error release of work‑piece.
( Generate air for vacuum breaking when power supply is on.)○Prevent dust, oil, etc. from entering inside. The contaminated valve
by the dust may cause malfunction.
Vacuum‑breaking air flow‑adjusting screw◎Vacuum‑breaking air decreases when turned
clockwise and increases when turned
counterclockwise.
Vacuum‑generating solenoid valve◎This solenoid valve controls vacuum
generation.
Normal close: Vacuum generating under AC
power supply on. Vacuum generation isstopped when AC supply off.
○Small‑type 3 ports solenoid valve insideis sensitive to the dust. Be careful tothe dust which may cause malfunction.
Pressure sensor◎Sensor‑on when vacuum reaches to thesetting valve.
○Pressure sensor for negative pressure canbe installed. (Be sure to refer toOperation Manual of vacuum sensor for
details before usage.)

Air Cylinder

Connection to other pneumatic equipments○Be sure to keep air actuator and
CONVUM as close to the air‑supply( compressor) as possible. ( Otherwise
it may cause insufficient supply
pressure and flow volume, by which thevacuum performance may not be acquired
well.

Vacuum piping○Inside diameter of hose at vacuum side
…φ4mm or more
(A hose with one size larger diameter isrecommendable if the length of the hose
exceeds 2m.)
○Avoid to use elbow joints.
○Smaller diameter than specified forpipings and fittings causes pressure dropand insufficient flow volume, by which
the vacuum performance is lowered andsuction impossible.

Vucuum padCompressor○Capacity of compressor should be goodenough to cover the whole quantity of
consumption of all pneumatic devices
including CONVUM.

Filter◎To prevent foreign particles from pad not to enter into the inside ofCOMVUM.
○Periodical cleaning is required at appropriate interval to prevent
clogging of filter by moisture fluid and other contaminaters.

CAUTION* There must be no air leakage in the pipings for both of supply air and vacuum.
* The wiring for the solenoid valves must be in accordance with the specifications.
* Please refer to catalog as for specifications and outer dimensions.

Exploded View
Solenoid valve

Silencer
Fixing pin

Valve unit
Filter kit
Screw +Vacuum sensor
O‑ringO‑ringO‑ringScrew +

O‑ringNozzle unit

BaseO‑ring
Check valve unit

CAUTION
Vacuum port baseScrew +

* Before carrying out disassembly or replacing a part, be sureto cut power supply and air source.
* Disassembly/assembly should be carried out strictly by aperson having professional knowledge.
* Do not lose any part while in assembly/disassembly work.
Otherwise, appropriate performance can not be warranteed.
* As a spring part may fly up during disassembly work, etc.,
be sure to take protective glasses.

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MANUAL NO.MC2‑200‑M003