Product Details
Product Description
Product Description
Focus on DCS, PLC, robot control system and large servo system.
Main products: various modules / cards, controllers, touch screens, servo drivers.
Advantages: supply of imported original products, professional production parts,
Fast delivery, accurate delivery time,
The main brands include ABB Bailey, Ge / fuanc, Foxboro, Invensys Triconex, Bently, A-B Rockwell, Emerson, ovation, Motorola, xyvom, Honeywell, Rexroth, KUKA, Ni, Deif, Yokogawa, Woodward, Ryan, Schneider, Yaskawa, Moog, prosoft and other brands
The cable length for LON (per LAG 1.4) connection with glass fiber optical cable should not exceed 2000 m Table 7: Connectors on Central Unit for MODBUS RTU, electrical RS485 Connector Descriptions Type of connector plug X60 RS485 channel 1 2pin Weidmueller BLAT2BSNOR X61 RS485 channel 2 2pin Weidmueller BLAT2BSNOR Caution To connect to the upper level automation system with MODBUS RTU a twisted pair cable shall be used. If the cable is shielded, connect only one side of the shield to the earth screw of the housing. The maximum baud rate is 115000 bit/s. The cable length should not exceed 130 m Table 8: Connectors on Central Unit for MODBUS, glass fiber optical cable Connector Descriptions Type of connector plug X62 RX channel 1 (optical interface) ST plug HP type HFBR *XS* X63 TX channel 1 (optical interface) ST plug HP type HFBR *XS* X64 RX channel 2 (optical interface) ST plug HP type HFBR *XS* X65 TX channel 2 (optical interface) ST plug HP type HFBR *XS* Caution The maximum baud rate is 115000 bit/s with glass fiber optical cable. Its length should not exceed 2000 m REF 542plus switchbay protection and control unit Manual Part 3: Installation and Commissioning 1VTA100004-en DMS,2001-10-04 REF542plus: Installation and Commissioning 20 / 80 Figure 7: Power Supply and communication connection for HMI Control Unit Table 9: Connectors on HMI Control Unit Connector Descriptions Type X10 Auxiliary voltage for power supply 2 pin Weidmueller BLAT2BSNOR X20 RS485 interface to Central Unit 9 pin male D-sub connector 4.2.4 Wiring the REF542plus Follow the bay documentation supplied for the wiring. In conclusion, the checks described in the following paragraphs can be done to ensure that the wiring is correctly installed. 4.2.4.1 Checking the current transformer circuits To check that the current transformer and the current transformer circuits are wired correctly, run the following checks: Polarity check The polarity check (as close as possible to the REF542plus) is used to check the current circuit and also the installation position and the polarity of the transducer. The polarity of the transducers to one another can also be checked with load current. Current feed with heavy current source (primary test instrument). The current feed provides information on the transducer transformation and the correct wiring to the REF542plus. The power supply should be per conductor and run from conductor to conductor in each case. All line currents and the residual current should be checked here. The transducer transformation can also be checked with load current. Recording the magnetizing characteristic Recording the magnetizing characteristic ensures that the REF542plus is connected to a protective core and not to a measuring core. Checking the transducer circuit ground Every independent current circuit may be grounded at only one point to prevent balancing currents resulting from potential differences.