0850/0850-T1 User Manual
Matrix Machine Tool (Coventry) Limited 202 / 231
22.9 Pressurised air supply to machine
The main air supply solenoid valve to the machine is switched on automatically once the machine has
been master started from the machine control panel.
The air supply to the machine is monitored at all times by an in-line mounted pressure switch. If the
air pressure to the machine drops below the minimum preset value of 4 BAR then machine operation
is suspended.
Min air pressure: 5.0 Bar
Max air pressure: 6.8 Bar
Normal working air pressure: 5.5 ~ 6 Bar
Air Purge To Linear Scale
The Heidenhain linear encoder scales are supplied with a regulated and micro-filtered low pressure
air purge to ensure that the scales remain clean at all times.
The micro-filter located in the services cabinet should be inspected at regular intervals (at least once
a week) and changed when it becomes clogged up.
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