XPSMC32Z

XPSMC32Z

XPSMC32Z

XPSMC32Z

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。

ABL8BBU24200 数量2
3BHB024711R0020     1
1762-L40BWA   面价8723
功率模块 GDE45725   1
功率模块中的熔断器 K1100028   10
柜顶风机  D5000070   1
用户接口板 5.569.016G   1
CBLS.1EMERSON  数量10个
6AV7853-0AE20-1AA0   1
6SL3210-5BE21-5UV0    1
6SL3210-5BE25-JUV0    2
6SL3210-5BE27-5UV0    1
6SL3210-5BE21-0UV0    1
6SN1121-0BA11-0AA1   1二手
DPS-1200SB A   2
FESTO 电缸 DGE-40-650-ZR-LK-RV 1件询价
08-2668-000-0001   4
09-0124-00-06   2
99-5102-15-02   1
FR-CV-H55K   1
350-2AH01-0AE0   1
Q65RWB  1个
GT15-ABUS  1
FR-D720-0.75K    1
FRA-820-0.75K1    1
FX3U-16MR/ESA   1
SXT-32   3
西门子变频器,变频器,6SL3244-0BE33-7UA0 台
6ES7352-5AH01-0AE0    1
6SL3054-0EG00-1BA0  2
AL2410   3
AL2411   2
DTI515   1
E80377   1
AL1202   1
OPCII-VG5-TL   1
OMH-RL31-01   1
RLK31-8-1200-RT/31/115   1
MH04-3505  1
LIKA/莱卡
编码器/磁头SMG03-V-1-1-Z-M0.5    
HEIDENHAIN/海德汉
光栅尺端头316222-01   各1
MH532704EDS              3
PROTECTORHMCP100R3C@ACUTLER-HAMMERLIVING QUARTER HVAC数量2
MD290T15G/18.5PB-TC   1
MD290T15G/2.2PB-TC   1
AFC-PWF01   6
288-2DR16-0AA0   1个
1769-OB32  面价6058    2
MFDLNA3SG011    1
FR-E840-0060-4-60    1
A5E00160441     1
光电开关(含光纤) 型号:FUE050A1001(U174) Baumer electric  2个
WA71-47   1
IP66 InMax-15-SF  3个
FR-A820-0.75K   1
HEIDENHAIN型号：ID 1200635-51    1个
R2E180-BD52-06 数量6
触摸屏NS12-TS00-V1 数量1
H1卡接线端子KJ3242X1-EA1，数量3个
575332 TA 3 VOLTS   20个
EP204-PPB-EN00       1
GS2107-WTBD-N   7个
GS2110-WTBD-N   1个
FX3GA/60MT-CM    2
HG-KN73BJ-S100 5台
RKC  CD901  WD08-V8*AN-5N  数量是12件
模拟量模块   三菱 FX2N-4AD-PT   ； 数量1个
GL10-4AD   1
GL10-4PT  2

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