IAI America IX-NNW3515H - Manual (Page 84)

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12. Precautions for Use
12.7 Air Purge for Dust-proof/Splash-proof Specification IX-NNW2515H/3515H
By applying the pressure specified below from the air supply port provided on the side face of the base, the robot
will conform to the IP65 dust-proof/splash-proof specification.
Service pressure Pressure in a range of 0.3 to 0.6 MPa immediately before the bellows inflates
Outer diameter x Inner diameter Outer diameter ‡6 x Inner diameter ‡4
Fluid used
Clean, dry air free from compressor oil, etc. The air filtration rating shall be
10
Pm or less (dew point of dry air in atmosphere shall be -20qC or less).
z Flow rate adjustment method
The customer should provide a relief valve. Fully close the speed controller supplied with the actuator, set
the pressure to 0.3 MPa or more but not exceeding 0.6 MPa, and then adjust the flow rate using the speed
controller supplied with the actuator.
Supplying too much air will inflate the bellows.
Adjust the speed controller by following the procedure below.
Turn the needle of the speed controller counterclockwise from the fully closed position to increase the flow
rate.
Supplying too much air will inflate the bellows, so adjust the needle until immediately before the bellows
inflates.
After the adjustment, be sure to tighten the lock nut to maintain the flow rate.
x Be sure to use clean, dry air with an atmospheric dew point of -20qC or less. If dry air is not used,
condensation may occur inside the robot, resulting in earth leakage or malfunction.
x Do not apply pressure exceeding the specified maximum pressure of 0.6 MPa. Doing so may cause the
seals to break and impair the robot’s dust-proof/drip-proof performance.
x Adjust the pressure and also adjust the flow rate using the speed controller at the back of the base to
prevent intrusion of powder dust.
Lock nut
Needle
Caution