制動力矩計算要有足夠的制動力矩才能產(chǎn)生需要的制動效果,制動力矩太小,變頻器仍然會過電壓跳閘。制動力矩越大,制動能力越強(qiáng),制動性能約好。但是制動力矩要求越大,設(shè)備投資也會越大。 制動電流是指流過制動單元和制動電阻的直流電流。P――――電機(jī)功率P(kW)k――――回饋時的機(jī)械能轉(zhuǎn)換效率,一般k=0.7(絕大部分場合適用)I――――制動電流,單位為安培計算得到I=P 制動電流安培數(shù)=電機(jī)千瓦數(shù)即每千瓦電機(jī)需要1安培制動電流就可以有100%制動力矩制動電阻計算和選擇(按100%制動力矩計算)電阻值大小間接決定了系統(tǒng)制動力矩的大小,制動力矩太小,變頻器仍然會過電壓跳閘。電阻功率選擇是基于電阻能安全長時間的工作,功率選擇不夠,就會溫度過高而損壞。380V標(biāo)準(zhǔn)交流電機(jī):P――――電機(jī)功率P(kW)k――――回饋時的機(jī)械能轉(zhuǎn)換效率,一般k=0.7(絕大部分場合適用)V――――制動單元直流工作點
HD SYSTEMS REDUCER GEARHEAD CP-32A-21-J602A-SP 18 21
From Korea, South
New HD Harmonic Servo Head Drive Gear Reducer 5:1 CP-25A-5-J601A-SP PD-0041
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Customs services and international tracking provided
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XYCOM MONITOR 3512 KP
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FREE 2 YR WARRANTY FREE US SHIPPING ON ORDERS OVER $100
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