38 YASKAWA ELECTRIC SIEP C730600 50A YASKAWA AC Drive-Option Card MECHATROLINK-II Technical Manual10 Specifications10 Specifications SpecificationsTable 29 Option SpecificationsItems SpecificationsModel<1> For MECHATROLINK-I, a cycle is 2 ms.For MECHATROLINK-II, a cycle is 1 ms to 8 ms for a 32-byte data transmission, and 500 μs to 8 ms for a 17-byte data transmission.<2> At the maximum transmission distance of 50 m, the maximum number of stations is 15.<3> For MECHATROLINK-I, only a 17-byte data transmission can be selected.<4> The maximum number of connectable stations changes depending on the types and settings of the host controller, baud rate, or communicationscycle. For details, refer to the manuals of your controller.Communications cycle: Integral multiple of transmission cycles (depending on the host controller settings).Example: If the host controller is an MP2300x For MECHATROLINK-II (32-byte transmission, 2.0 ms communications cycle): 21 stations max. (21 stations can be set, but then themaximum number of connectable drives will be 16.)x For MECHATROLINK-II (32-byte transmission, 1.0 ms communications cycle): 9 stations max.x For MECHATROLINK-II (17-byte transmission, 1.0 ms communications cycle): 15 stations max.x For MECHATROLINK-I: 14 stations max.SI-T3Access mode Start-stop synchronization, master/slave methodCommunication Speed 10 Mbps (MECHATROLINK-II), 4 Mbps (MECHATROLINK-I)Transmission cycle 500 μs to 8 ms <1>Maximum transmission distance 50 m <2>Minimum wiring distancebetween stations 0.5 mData length 17-byte data transmission or 32-byte data transmission <3>Maximum number of stations 30 <2> <4>Ambient Temperature –10°C to +50°CHumidity up to 95% RH (no condensation)Storage Temperature –20°C to +60°C (allowed for short-term transport of the product)Area of Use Indoors (free of corrosive gas, airborne particles, etc.)Altitude Up to 1000 m