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BK7520 - Beckhoff EtherCAT Bus Couplers
BK7520 Beckhoff EtherCAT Bus Couplers Technical Specifications
| Brand | Beckhoff |
| Product Type | EtherCAT Bus Couplers |
| Product | BK7520 |
BK7520 Beckhoff EtherCAT Bus Couplers Technical Specifications
| Specification | Value |
|---|---|
| Number of Bus Terminals | 64 (255 with K-bus extension) |
| Max. number of bytes fieldbus | 254 word I/O for the cyclic interface (depending on the master) |
| Configuration possibility | via KS2000 |
| Data transfer rates | 2/4/8/16 Mbaud, adjustable by means of configuration switch |
| Bus interface | FSMA standard, IEC 872-2 |
| Data transfer medium | 1,000 รยตm plastic fiber optic |
| Power supply | 24 V DC (-15%/+20%) |
| Input current | 70 mA + (total K-bus current)/4, 500ร mA max. |
| Starting current | 2.5 x continuous current |
| Recommended fuse | โค 10 A |
| Current supply K-bus | 1750 mA |
| Power contacts | max. 24 V DC/max. 10 A |
| Electrical isolation | 500 V (power contact/supply voltage/fieldbus) |
| Distance between stations | 40ร m plastic fiber optic |
| Weight | approx. 170 g |
| Operating temperature | 0...55ยฐC |
| Storage temperature | -25...+85ยฐC |
| Relative humidity | 95%, no condensation |
| Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27 |
| EMC immunity/emission | conforms to EN 61000-6-2/EN 61000-6-4 |
| Protect. rating/installation pos. | IP20/variable |
| Approvals/markings | CE, CCC, UL, ATEX, IECEx |
| Ex marking | ATEX: II 3 G Ex ec IIC T4 GcIECEx: Ex ec IIC T4 Gc |
| Housing - Design form | compact terminal housing with signal LEDs |
| Housing - Material | polycarbonate |
| Housing - Dimensions (W x H x D) | 51 mm x 100 mm x 69 mm |
| Housing - Installation | on 35 mm DIN rail, conforming to EN 60715 with lock |
| Housing - Side by side mounting by means of | double slot and key connection |
| Housing - Marking | labeling of the BZxxxx series |
| Housing - Wiring | solid conductor (s), flexible conductor (st) and ferrule (f): spring actuation by screwdriver |
| Housing - Connection cross-section | s*: 0.08...2.5 mmยฒ,st*: 0.08...2.5 mmยฒ,f*: 0.14...1.5 mmยฒ |
| Housing - Stripping length | 8...9 mm |
| Housing - Current load power contacts | Imax: 10 A |
| Digital peripheral signals | 1,020 inputs/outputs |
| Analog peripheral signals | 254 inputs/outputs |
