DR. JOHANNES HEIDENHAIN GmbH
D-8225 Traunreut ‘Tel. (08669) 31-O
SERVICE MANUAL TNC 151/155
paae 36
Kundendienst
Section 3
3. Exchange Information
l&ate: All inputs/outputs from the TNC 151/155 Control can
only be connected to circuits which have voltages
conforming to WE S.73 S8.
Do not disconnect or connect plugs under power!
NC machines also need protection and installation safety as
required for manually operated machines (e.g. Emergency Stop).
Their function should be checked during commissioning of the
machine and of a new Control.
Before exchanging a Control the machine parameters should be
noted or stored on magnetic tape1
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