内置保险.TCM的内置保险是2Amp,125V的微型保险(小保险，型号273002或同类)。如果P(外部.电源)LED不亮，内部保险可能斷开，存取此保险要关闭PLC电源，然后拆下TCM模板。轻轻的的向前推前方覆盖物，用一个小的螺丝刀打开覆盖物边。
SIEMENS 545/555/575 SIMATIC 505 SYSTEM MANUAL
PEPPERL & FUCHS NBB10-30GM80-WS?-H76 2-WIRE 20-250 VAC P
ASTEC ACV 5N3-1 POWER SUPPLY NNB, BENT
ALLEN BRADLEY 1494V-H11 SERIES A SHORT OPERATING HANDLE
ALLEN BRADLEY SLC 500 INPUT MODULE MISSING DOORS 1746-I
NICHOLSON 66221 BANDSAW COIL, 100 FT, 1/4″ WIDTH, 0.025
TURK / COMBI-PROX NI20-CP40-FDZ30?XX PROXIMITY SWITCH SE
SEALMASTER 2 3/16 F-530 BEARING, NIB
REXROTH R978024163 SOLENOID VALVE, 4 PIN MALE, 24 VDC,
TURK / COMBI-PROX NI20-CP40-FDZ30?XX PROXIMITY SWITCH SE
SIEMENS 352P / 16356-27 MPU BOARD KIT
WIKA DN 150 6″ PRESSURE RING
HOFMANN HK 5000 HYDROKOMPENSER CONTROLLER
FIKE D4342-1.50-E BCH RUPTURE DISC NIB
AEG MODICON AS-S908-011 REMOTE I/O PROCESSOR
