描述
外部DC24V电源若输入回路有DC24V供电的接近开关、光电开关等，而PLC上DC24V电源容量不够时，要从外部提供DC24V电源；但该电源的“—”端不要与PLC的DC24V的“—”端以及“COM”端相连，否则会影响PLC的运行。
USED Allen Bradley 1785 V80B PLC-5 Processor Module VME
USED Allen Bradley PLC5 / V40B VME Programmable Control
NEW Fanuc M900iA A97L-0218-0251 #80E-121 RV Reducer
Carrier 7.5 Ton 50TFF 008 A 511 Roof Top Unit RTU USED
NEW Powervision 113-C Cable TV Standby Power Supply
HELU SPOT Welding Gun 3853 31282 0000 Type X USED
USED 4000 Amp Siemens RL4000 Breaker Static Trip 3 LSG
USED Allen Bradley PLC-5/40V Processor Unit PLC5 40V
USED Allen Bradley PLC-5/V80B Processor Unit PLC5 V80B
USED Westinghouse 300 kVA Dry Type Transformer 3 phase
2400 Delta HV 480 Y / 277 LV
Siemens I-T-E RD63F200 Sentron Series Breaker 2000 amps
USED Allen Bradley PanelView Plus 1250 2711P-T12C4D1
