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HFD3020BP10
- 更新时间:2025-03-14
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HFD3020BP10
HFD3020BP10
HFD3020BP10
2、 数字量信号连接应注意的问题
变频器的输入信号中包括对运行/ 停止、正转/ 反转、点动等运行状态进行操作的数字量输入信号(开关型指令信号),这些信号常来自PLC 的数字量输出信号。PLC 通常利用其内部的继电器接点(继电器输出型P L C )或具有开关特性的元器件(晶体管输出型PLC)与变频器相连,得到运行状态指令,如图1 和图2 所示。在进行数字量信号的连接时应注意:
(1)使用继电器输出型P L C 与变频器相连时,应注意接触不良常带来变频器误动作,因此在实际接线中要注意连接可靠。
(2)使用晶体管输出型P L C 与变频器相连时,应注意晶体管本身的电压的高低、电流的大小等限制条件在其范围内,保证系统的可靠性。
(3)设计变频器的输入信号电路时,应尽量避免采用继电器等感性负载,因继电器开闭产生的浪涌电流可能引起变频器的误动作。
(4)当P L C 输出的开关信号进入变频器时,有时会发生外部电源和变频器控制电源之间的串扰,应注意对P L C和变频器分开接地,避免两者使用共同的接地线。
PDP22-FBP 15
HC800 1
8cAI04 (含底座) 2
MDI1FRD34C7-EQ-N 1
MDI4MRQ23B7-EQ 1
6FX8002-1AA01-1AC0 2
功率模块ACS580MV-PEBB-R3ABB-------
GT2510-VTBA-----
测量板ACS580MV-CVMI2-UF-C911-B108ABB
5069-L340ER 面价73417
5069-ECR 面价 225
2711P-T15C22D9P 面价54032----
6FC5610-0BA10-0AA0 1 -------
AM2048S/R 1
6FC5303-0DM13-1AA1 1-------
6FC5312-0DA01-0AA0 1--------
6FC5303-0AF30-1AA0 1---------
6FC5370-0AA00-2AA1 1-------
6SL3130-7TE25-5AA3 1-----
6FC5611-0CA01-0AA1 1-------
6FC5203-0AF04-0AA0 1--------
1606-XLE120E 面价1717
ESM13B-102-202-T2N0A00 1个
MFE190-04UP-06A0-2+N8020 1个 ABB
6ES7656-6CP33-1GF0 3
6ES7656-6CN33-1GF0 7
6ES7656-6CL33-1GF0 4
6ES7653-2CX01-0XE0 14
6GK7443-1GX30-0XE0 29---------
6AV7261-0HS20-3BA2 15
6GK1704-0HB16-0AA0 17
6DL1131-6BL00-0PH1 70
6DL1132-6BL00-0PH1 20
6ED1052-1FB08-0BA1 16
6ED1055-1FB10-0BA2 16
6ES7214-1HG40-0XB0 1
9LA1110-6SV00-1HC6 2
9LA1110-6SP10-7KA0 2
9LA1110-6SV00-1BA0 2
9LA1110-6SV00-1AC5 2
9LA1110-6PH20-0DB4 2
9LA1110-6PH20-2SV5 1
6ES7652-7CX68-2YB0 1
9LA1110-6SV05-1GC2 2
6ES7658-5BX68-2YB5 1
9LA1110-6SV05-1HB7 4
9LA1110-6SV05-1AB7 2
9LA1110-6SV05-0AA6 2
6ES7718-1CB00-1BB2 2
6ES7656-6CR33-1GF0 1
CDBR-4030D 2
RXHG6000W20RJ 2
6DR4004-8J 5
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