Numeric control Sample Clauses

Numeric control. The numeric control shall be built to satisfy the technical specification. The workstation screen is proposed to be 15” LCD or better,. Tenderer shall give the standard scheme available with their design of machine. Each tool-holder carriage shall be independent during the turning operations. 3.15.1.1 The numeric control shall be designed for maximum reliability and easy maintenance. i. The control shall be protected from the effects of overheating by operator alarm and by power cut off. 3.15.1.2 To facilitate numeric control use and maintenance, the following types of diagnostic and test circuitry shall be provided: i. System integrity diagnostics (verification of the software, machine adjustment data, tool corrections, part program, etc.) at equipment power-up, ii. Hardware diagnostics (cards fitted, normal operation of critical cards, power supply current and voltage), iii. Non-resident diagnostics (test bands which may be loaded in the equipment to locate a defective card), iv. Test circuits (display of machine position and tracking error, display of memory contents, etc.), v. Access to the various BUSES for connection of an analyser. Also, emergency thresholds and limits shall be provided to avoid feeding the tool in the machine and in the axle to be re-profiled. 3.15.1.3 The numeric control shall be designed in such a manner that the modification of the profile of a wheel, the replacement of a profile, the modification of a cycle or basic data concerning the definition of profile, can be carried out. (Program for modifications available: guided operator mode). i. Connectors for the addition of a data input keyboard, an RS 232 connector output and a laser printer shall also be provided. The software shall be designed to enable these hardware. ii. The operator-machine dialogue shall be by means of a keyboard and display control touch in operator panel/pendant. iii. Operation running cycles and sequences shall be displayed in real time and in plain English language on screen pages. A screen page per operation (setting up of an axle, measurement, machining, etc.) shall be provided. iv. Interrupts in the sequence shall be reported. Manual sequences shall be guided by means of operator messages. Parameter input shall be by means of masks intended to guide the operator.