User’s Guide for EM760 series high-performance vector inverter ★ When BR100 works with the minimum resistance, the braking unit can work continuously at the braking frequency D=33%. In the case of D>33%, the braking unit will work intermittently. Otherwise, an over-temperature protection fault will occur. 8.2.1 Selection of Connecting Wires Since all braking units and braking resistors work at high voltage (>400VDC) and in the discontinuous mode, please select appropriate wires. Flexible cables have higher flexibility. Because cables may be in contact with high-temperature devices, it is recommended to use copper-core and heat-resistant flexible cables or flame-retardant cables.
The braking unit should be as close to the inverter and braking resistor as possible with the maximum distance of preferably no more than 2m. Otherwise, the DC-side cables should be twisted and used with magnetic rings to reduce radiation and inductance.
8.3 Option card I/O expansion card Expansion card for communication card 49 consumption braking BR100-160 Energy consumption braking 6 75 150 55~160 BR100-200 Energy consumption braking 5 100 200 160~200 BR100-315 Energy consumption braking 3 120 300 185~315 BR100-400 Energy consumption braking 3 200 400 315~400 Specification and model Average Braking Current Peak Braking Current Imax(A) Cross-section (mm2) of Iav(A) Copper-core Cable BR100-045 45 75 10 BR100-160 75 150 16 BR100-200 100 200 25 BR100-315 120 300 25 BR100-400 200 400 35 Specification and Note Terminal Function model EM760-IO-A1 I/O expansion card 3-channel multi-functional digital signal input: X8~X10 2-channel relay output:
The function of R3 is set by using function code F03.32; the function of R4 is set by using function code F03.33 2-channel analog signal input: 1-channel I4, supporting -10V~+10V or 0~+10V voltage input 1-channel multi-functional digital signal input, supporting PT100/PT1000/PTC/KTY84 Specification and Note Communication rate model EM760-CM-C1 CANopen communication 125kbps, 250kbps, 500kbps, 1Mbps