Air Purge - Toshiba THP550-IP Instruction Manual

3.3

Air Purge

The dust- and drip-proof type robot is provided with an air supply port for air purge in its
base connector unit. See Para. 1.1. (Quick-operated joint with speed controller)
By feeding air into the air supply port, entry of dust into the robot can be prevented.
The air supply unit (reducer or pressure reducing valve, air filter, etc.) and air tube (8
mm-dia.) should be provided by the customer.
• Air specifications
Maximum operating pressure: 0.58 MPa (6 kgf/cm
Tube size:
Fluid used:
• How to regulate flowrate
Fully close the speed controller attached to the robot base connector unit.
Set the pressure to 0.3 MPa ~ 0.58 MPa (maximum pressure), using a regulator (or
pressure reducing valve: to be provided by the customer), then connect the air tube.
Turn the needle of the speed controller counterclockwise from the fully closed state
to increase the flowrate.
condition and tighten the lock nut of the speed controller.
If the air volume fed is too much, the bellows will swell out. Regulate the air to just
before the bellows starts expanding.
Tube insertion hole
(φ8 mm)
Open (Flowrate increases.)
• Be sure to use fresh dry air. Otherwise, the robot interior will condense and water
stays there, resulting in an electric leak or malfunction.
• DO NOT increase the pressure exceeding the specified maximum pressure.
Otherwise, the seal, etc. of each joint will be broken to damage the dust- and
drip-proof performance.
DUST- & DRIP-PROOF TYPE SPECIFICATIONS MANUAL
Outer dia. 8 mm × Inner dia. 5 mm
Fresh dry air not containing compressor oil, etc.
Filtration accuracy of air filter 10 µm or less
Regulate the flowrate while observing the bellows
Close (Flowrate decreases.)
!
CAUTION
– 23 –
2
)
Speed controller
Lock nut
Needle
STE80783