SAFT177SAC  ABB  programmable controller module

In addition to that mentioned in the above sections, the self-supervision unit (IRF) monitors the operating voltage of the relay. If a fault is detected in the operating voltages, the self-supervision unit prevents the relay from operating. In addition, the “IRF” LED of the central unit is lit, and the IRF relay resets.

The self-supervision signal output operates on the closed circuit principle as presented in the figure below. Under normal conditions, the output relay is energized and the contact gap between 8 and 10 is closed. If the auxiliary power supply fails, or an internal fault is detected, the contact gap between 8 and 10 is opened.

When the “Trip Condition” key switch is in the “Current&Light” position, and the “Current&Light” LED is lit (normal operation), the overcurrent condition level is in use. Thereby both overcurrent and light are required for tripping. • Take the overcurrent condition level into use (overcurrent and light required for tripping) by using the switches SG1/1...4 (L1, L2, L3 inputs), or SG1/1...4 (L1, L3), and SG4/1...5 (L2). When the key switch is in the “Light” position and the “Current” LED is lit, the overcurrent condition level is not in use. Thereby only light is required for tripping. This option can be used, for example, during service.

Remember when constructing applications • Do not change connections or set any switches when the supply voltage is connected to the units. • Condition monitoring of a radial sensor fiber is not possible. When commissioning a radial sensor fiber, remember to set the SG3/4 switch in position ON. • Check the switches of the ports, when adding or removing extension units. Remember that the maximum number of extension units to be linked to one port is five, that is, ten extension units at the maximum can be connected to one REA 101 relay. Check that the terminal resistor of the last extension unit of either port is switched in the ON position (SG1/1). • When the circuit-breaker failure protection is used, it should be noted that the delay of the circuit-breaker failure protection is controlled by the overcurrent signal. Should the first trip be successful and the overcurrent disappear before the delay time runs out, no delayed tripping will occur. If the overcurrent situation lasts throughout the delay time, a delayed trip signal will be delivered. The “Trip Condition” key switch can be used to activate an overcurrent signal. Then the delayed trip function always operates in a trip situation, provided the circuitbreaker failure protection is in use. • Overcurrent information between two REA 101 central units has to be transmitted either over OPTOLINK connections and the signal transfer fiber, or over the connection cable of the extension units and the REA 105 unit, but not via both at the same time.

The structure and details of the product：

Please make an inquiry for more models

　　ABB TB8073BSE008538R1

　　ABB SD8333BSC610066R1

　　ABB TK801V0123BSC950089R3

　　ABB TB8063BSE008536R1

　　ABB TB8253BSE036634R1

　　ABB TU833V13BSE038726R1

　　ABB SD8343BSC610067R1

　　ABB TB8103BSE008560R1

　　ABB TK811V0503BSC950107R2

　　ABB TB8423BSE022464R1

　　ABB TB40A3BSE037760R1

　　ABB AO845A3BSE045584R1

　　ABB AO801-eA3BSE020514R2

　　ABB DI801-eA3BSE020508R2

　　ABB DO801-eA3BSE020510R2

　　ABB DI811-eA3BSE008552R2

　　ABB AI810-eA3BSE008516R2

　　ABB AI830A-eA3BSE040662R2

　　ABB DP840-eA3BSE028926R2

　　ABB AO845A-eA3BSE045584R2

　　ABB AI835A-eA3BSE051306R2

　　ABB DO810-eA3BSE008510R2

　　ABB TB820V2-eA3BSE013208R2

　　ABB AO810V2-eA3BSE038415R2

　　ABB AI820-eA3BSE008544R2

　　ABB DI821-eA3BSE008550R2

　　ABB AO820-eA3BSE008546R2

　　ABB DO802-eA3BSE022364R2

　　ABB DI810-eA3BSE008508R2

　　ABB AI845-eA3BSE023675R2

　　ABB AI801-eA3BSE020512R2

　　ABB DI803-eA3BSE022362R2

　　ABB DI802-eA3BSE022360R2

　　ABB TB40A-eA3BSE037760R2

　　ABB TB825-eA3BSE036634R2

　　ABB PM866K023BSE050199R1

　　ABB PM861AK023BSE018160R1

　　ABB PM866K013BSE050198R1

　　ABB PM851AK013BSE066485R1

　　ABB TB8523BSC950263R1

　　ABB PM864AK023BSE018164R1

　　ABB PM856AK013BSE066490R1

　　ABB TK850V0073BSC95019R1

　　ABB SB8223BSE018172R1

　　ABB PM860AK013BSE066495R1

　　ABB TB8503BSC950193R1

　　ABB TK851V0103BSC950262R1

　　ABB TK212A3BSC630197R1

　　ABB SB8213BSE018109R1

　　ABB TB8513BSC950194R1

　　ABB MB801V5123BSE042257R1

　　ABB PM861AK01-eA3BSE018157R2

　　ABB PM861AK02-eA3BSE018160R2

　　ABB PM856AK01-eA3BSE066490R2

　　ABB PM866K01-eA3BSE050198R2

　　ABB PM851AK01-eA3BSE066485R2

　　ABB PM864AK02-eA3BSE018164R2

　　ABB PM860AK01-eA3BSE066495R2

　　ABB PM864AK01-eA3BSE018161R2

　　ABB PM866K02-eA3BSE050199R2

JUSTWELL PTE. LTD. sells new and discontinued products, and purchases such specialty products through independent channels.JUSTWELL PTE. LTD., Ltd. is not an authorized distributor, distributor, or representative of the featured products on this website. All product names/images, trademarks, brands, and logos used on this website are the property of their respective owners. Product descriptions, descriptions, or sales with these name images, trademarks, brands, and logos are for identification purposes only and do not imply any association or authorization with any rights holders.

Our main products include DCS control system spare parts, PLC system spare parts, and robot system spare parts. Our advantageous brands include Allen Bradley, Bently Nevada, ABB, HIMA, Reliance, Bender, National Instruments, Emerson Ovation, Honeywell, Siemens, Allen Bradley, ICS Triplex, FOXBORO, Schneider, GE Fanuc, Motorola, HIMA, Prosoft, and other imported industrial components. Our main products serve a wide range of electronic, metallurgical, chemical, and power plants Industries such as steel mills, rubber, cement, machinery and equipment, and construction.

Other best-selling products：