140CPU65160S
140CPU65160S
140CPU65160S
2.1 电源系统引入的干扰
电网的干扰,频率的波动,将直接影响到PLC系统的可靠性与稳定性。如何抑制电源系统的干扰是提高PLC的抗干扰性能的主要环节。
(1) 加装滤波、隔离、屏蔽、开关稳压电源系统。
设置滤波器的作用是为了抑制干扰信号从电源线传导到系统中,使用隔离变压器,必须注意:屏蔽层要良好接地;次级连接线要使用双绕线(减少电线间的干扰),隔离变压器的初级绕组和次级绕组应分别加屏蔽层,初级的屏蔽层接交流电网的零线;次级的屏蔽层和初级间屏蔽层接直流端。
为了抑制电网大容量设备起停(如送水泵等)引起电网电压的波动,保持供电电压的稳压,可采用开头稳压电源。
Omron TL-X5Y1-52/TLX5Y152
Omron SRT2-OD16T-1/SRT2OD16T/SRT2OD16T1/SRT2-0D16T-1
OMRON CPM1A-20CDR-A/CPM1A20CDRA
Omron C200HW-PD024/C200HWPD024
OMRON XWT-OD08/XWT-0D08/XWTOD08
OMRON E39-TM1/E39TM1
Omron C200HW-CLK21/C200HWCLK21
Omron C200H-OC224/C200HOC224
OMRON CPM1-20CDR-A/CPM120CDRA
OMRON C200H-OD218/C200HOD218
Omron C200H-OD215/C200HOD215
Omron E2EV-X10C1/E2EVX10C1
OMRON E2EV-X10C2/E2EVX10C2
OMRON C500-OD412/C500OD412
Omron C200HW-BC081/C200HWBC081/C200HW-BCO81
Omron E3HF-1E1/E3HF1E1
Omron WS02-CXPC1-EUPL-V32/WS02CXPC1EUPLV32
Omron WS02-CXPC1-EUPL-V32/WS02CXPC1EUPLV32
OMRON G79I100C75/G79-I100C-75
OMRON C200H-BC101-V2/C200HBC101V2
Omron C200H-BC081/C200HBC081
OMRON CQM1-OD212/CQM1OD212
OMRON C200H-ID217/C200HID217
OMRON C200H-BC081-V2/C200HBC081V2/C200H-BCO81-V2
Omron E32-D24/E32D24
Omron E53-CK01/E53CK01
Omron 3G2A3-PS221/3G2A3PS221
Omron E3XR-CE4/E3XRCE4
OMRON C200HW-PA204/C200HWPA204
OMRON C500-LK009-V1/C500LK009V
Omron C200H-CN7/C200HCN7
Omron E2E-X5Y1-53US/E2EX5Y153US
Omron C200H-CN221/C200HCN221
OMRON 3G2A9-AL001/3G2A9AL001/B500-AL001/B500AL001
OMRON C200H-CN422/C200HCN422
Omron C200HW-CE001/C200HWCE001
OMRON C500-II101/C500II101
Omron 3G2A3-ID411/3G2A3ID411
OMRON C200H-ID212/C200HID212
OMRON C200H-OD212/C200HOD212
OMRON C500-SP002/C500SP002
Omron G7L-1A-T-CB/G7L1ATCB
OMRON C500-SP002/C500SP002