Flender/Flender Gear Units/Bevel-helical speed reducers B2
ns as well as ES cum operating stations. xxv) History for 4 months hall be available in all OS as

well as ES . xxvi) / / / / ng shall be arranged to enable the removal of instruments/devices without

nduly disturbing them. xxvii) All panels/desk/enclosures interiors shall be illuminated with 2nos. front and 2nos. rear with LED Lamp fixtures

with door-actuated switches. Door switch terminals shall be shrouded. All illuminated lights shall be provided with individual switch with door

interlock switch. xxviii) Sufficient number of power receptacles with disconnect switches hall be installed within panels/desk/enclosure & racks. 1 of 1 INDRADHANUSH GAS GRID LIMITED TECHNICAL SPECIFICATION FOR NATURAL GAS COMPRESSOR STATION FOR NORTH EAST GAS GRID PIPELINE PROJECT TS NO.: MEC//2UU/0/2/0 Control & Instru mentation (&) Chapter-0.0 2, MECON Limited, All Right Reserved Page 8 of 1 0.0.0.0 Controller Subsystem The control function of the syste shall be executed by the lat est, industrially proven controllers (minimum 3 bit microprocessor based controller) consisting of power upply modules, processor modules, communication modules and / mo dules and set of algorithms hich are easily field configurable using user-friendly software. Controller shall be provided ith redundant power supply, processor and communication modules. Controller processor memory sha ll be non-volatile. However in ase volatile memory is provided, battery back up shall be provided with mi nimum of 4 hours to keep program storage ntact. battery drain indica tion shall be provided when the charge in he battery dips below 5%. The hardware capability of the controller shall be exploited for regulatory control, sequencing and interlocking functions. Controllers shall be capable of accepting process signals from various process sensors, switches and electrical transduc