140CRA21110

140CRA21110

 1)造成傳輸信號(hào)線短路或斷路（由于機(jī)械拉扯，線路自身老化，特別是鼠害），當(dāng)傳輸信號(hào)線出故障時(shí)，現(xiàn)場(chǎng)信號(hào)無法傳送給PLC，造成控制出錯(cuò)；

    2)機(jī)械觸點(diǎn)抖動(dòng)，現(xiàn)場(chǎng)觸點(diǎn)雖然只閉合一次，PLC卻認(rèn)為閉合了多次，雖然硬件加了濾波電路，軟件增加微分指令，但由于PLC掃描周期太短，仍可能在計(jì)數(shù)、累加、移位等指令中出錯(cuò)，出現(xiàn)錯(cuò)誤控制結(jié)果；

    3)現(xiàn)場(chǎng)變送器，機(jī)械開關(guān)自身出故障，如觸點(diǎn)接觸不良，變送器反映現(xiàn)場(chǎng)非電量偏差較大或不能正常工作等，這些故障同樣會(huì)使控制系統(tǒng)不能正常工作。

    影響執(zhí)行機(jī)構(gòu)出錯(cuò)的主要原因有：

    1)控制負(fù)載的接觸不能可靠動(dòng)作，PLC發(fā)出了動(dòng)作指令，但執(zhí)行機(jī)構(gòu)并沒按要求動(dòng)作；

    2)控制變頻器起動(dòng)，由于變頻器自身故障，變頻器所帶電機(jī)并沒按要求工作；

    3)各種電動(dòng)閥、電磁閥該開的沒能打開，該關(guān)的沒能關(guān)到位，由于執(zhí)行機(jī)構(gòu)沒能按PLC的控制要求動(dòng)作，使系統(tǒng)無法正常工作，降低了系統(tǒng)可靠性。要提高整個(gè)控制系統(tǒng)的可靠性，必須提高輸入信號(hào)的可靠性和執(zhí)行機(jī)構(gòu)動(dòng)作的準(zhǔn)確性，否則PLC應(yīng)能及時(shí)發(fā)現(xiàn)問題，用聲光等報(bào)警辦法提示給操作人員，盡快排除故障，讓系統(tǒng)安全、可靠、正確地工作。

BRIDGEPORT 2ND FANUC CONTROL PANEL A20B-0084-C102 KEYB

YASKAWA TYPE MARK II AC SPINDLE MOTOR EEA-IKM PHASE 3 M

TOOL POD HOLDERS HOLDSTER CAT 40 CT40 LOT 24 SHIZUOKA 

CINCINNATI 3 542 1015A DUMP BOARD 35421015A CINCINNATI 

ASTRO GS18NF CNC SPINDLE ASTRO GS18NF CNC LATHE SPINDLE

GOULD GETTYS PERMANENT MAGNET SERVO MOTOR 16-5605-04

FINE SODICK NR-MOS-02A NRMOS02A POWER/CIRCUIT BOARD

SIEMENS C98043-A1086-L11 C98043A1086L11 CNC BOARD

HORYU SERVO DRIVE CNC B375 103655-110

YASKAWA AC SPINDLE MOTOR EEA-IKM EEA-1KM 3 PHASE

TROJAN II BETTER BATTERY CHARGER FORKLIFT 48V 2200 24T4

HITACHI WWCNT II 68E2,117700 BOARD 68E2117700 HITACHI S

LEBLOND MAKINO GILDEMEISTER HOHENLOHE 3UJ102/55-D TRANS

TOOL CHANGER ARM EXCHANGER CAT40 CT40 HITACHI SEIKI VK4

MAZAK VQC2040A MAZATROL M-1 M1 MONITOR OPERATOR PANEL

MITSUBISHI AC SPINDLE MOTOR SJ-5.5 A SJ5.5A OKK PCV-40 

YASKAWA VARISPEED F7 CIMR-F7U25P5 240V 23A SANTEC RB400

VDC DISPLAY MONITOR VDC1001DPDEBFE CE663W9K194GE LAGUN-

MAKINO MISC CNC TOYOTO KEIKI MOTOR PUMP TDM-1034 PVB 10

FANUC A06B-6058-H226 A16B-1200-0800 2 AXIS SERVO CONTRO

YASKAWA FEEDBACK UNIT ENCODER TFUE-20ZD7 TFUE20ZD7 CNC

DAIKIN M15A1-2-40 230V MOTOR W/ V15A1R-85 PISTON PUMP M

SPINDLE CAT 40 CT40 HITACHI SEIKI VK45 CNC VERTICAL MIL

TOOL FINGERS HOLDERS SLOT CT40 CT 40 CAT40 CAT 40 OKUMA

TOOL HOLDERS PODS CT 40 CAT40 LOT OF 19 HITACHI SEIKI V

20 MAZAK VTC-41 CNC VERTICAL MILL CAROUSEL TOOL POD POT

OKUMA BL-D BLD 30A BASE AXIS DRIVE *BASE ONLY- TOP BOAR
 

TOOL POD HOLDERS CT40 CAT 40 LOT OF 20 MORI SEIKI MV45/
 

TOOL CHANGER ARM CAT40 CT40 CAT 40 CT 40 MORI SEIKI MV4
 

FANUC 6T MOTOR A860-0300-T001 2 84 MORI SEIKI SL3 CNC
 

1994 MITSUBISHI DWC 90SB BY998065H01 L10958/MU-C.SZ POW

NACHI AC SERVO TS-4144N 1E36 3000RPM NACHI FOJIKOSHI TS

GENERAL ELECTRIC HYDRAULIC OIL TANK MOTOR PUMP 230V- 46
 

MATSUSHITA TR-6DA1 MONITOR TR6DA1 MATSUURA MINI MASTER 
 

SEIKI 01-05-02 BOARD 010502 HITACHI SEIKI CNC VK45 VERT

MAKINO MC40 FANUC SERVO MOTOR CNC A06B-0651-B005

SIEMENS 1FT5042-0AK71-1-Z SERVO MOTOR 1FT50420AK711Z EM

MILACRON C70051/C 9409-000508 CONTROL PANEL CINCINNATI 

POWER SUPPLY UNIT A20B-0007-0330/05B A20B-0007-0330 A35

YASKAWA ELECTRIC FEED BACK UNIT TFUE-08ZC7 TFUE08ZC7 FA

MITSUBISHI DYNAMYTE R-UNIT-1 FOR FR-SFJ-2-2.2K.3.7K TN5

LEADWELL MCV-OP MC632 MITSUBISHI MC632 BN634A308G51 OPE

MITSUBISHI CNC BN624A489HO3 FX 14E FX14E CIRCUIT BOARD 

PRESCO AMI 8115 ANAHEIM AUTOMATION DPF13H STEPPER DRIVE

PC CIRCUIT BOARD FX14E BN624A489H03 BN624A489HO3 MITSUB

YASKAWA JANCD-GSPIO DF6101675 REV B CONTROL PANEL MATSU

PC CIRCUIT BOARD FX52B BN624A367H03 MITSUBISHI DWC-90 E
 

MITSUBISHI 68E2.121766 NWW-CNT BOARD 68E2121766 NWWC HI

FANUC DC SERVO MOTOR A06B-0651-B005 A06B0651B005 CNC

GE FANUC A06B-0143-B075 SERVO MOTOR A06B0143B075 TOYAMA
 

MIYANO KNC-45 MOTOR 7' ROTORS SPINDLE
 

OKUMA LR-15 CNC MACHINE VAC MOTOR
 

MAHO MH600EZ MORIZONTAL MILL GEAR BOX TRANSMISSION
 

YASKAWA JANCD-CP03B BOARD JANCDCP03B DF8100713 ACROMAX 

 
YASKAWA CPCR-MR055K SERVOPACK DRIVE CPCRMR055K ACROMAX 

 
SONY AMPLIFIER BKO-C1810-H01 BK0 C1810 H01 BKO C1810 HO
 

EMCO 425 MAIER TURN MC CNC LATHE SPINDLE UNIT

SUNX N1W110 CLASS IP65 SAFETY SENSOR SYSTEM SCALE TOYAM

TOYAMA FTL-310MF CNC MILL JOG CONTROL PANEL REMOTE

GE FANUC POWER MATE PENDANT JOG CONTROL HAND HELD TOYAM

MATSUURA MINI MASTER MC500V ATC TOOL CHANGER FINGERS HO

I/O MODULE CNC CINCINNATI ARROW 500 ERE CONTROL TECHNIQ

YASKAWA SERVOPACK CPCR-MR155 K2 CPCR-MR-CA155 MORI SEIK

INPUT BOARD 571-041-018 571041018 571041-612 ME419 SMT 

MITSUBISHI DYNAMYTE C AXIS 7100-00035-1 METAL ROTOR C A

FW709A BN624A675G51 BN624A675H01 MITSUBISHI M25K CNC RA

GHIELMETTI 447.140.112 447140112 447130073002 BOARD CNC

ENSHU ACCU-MILL FANUC 3M CONTROL MONITOR PENDANT

Fanuc 6T CONTROL MONITOR PENDANT COMPLT A02B-0050-C012

YASNAC YASKAWA 3 PHASE INDUCTION MOTOR FEVQ-7Z FEVQ7Z

CNC CINCINNATI ARROW 500 ERE HEAT OIL CHILLER COOLER RA

YASKAWA MOTOR & FEEDBACK UNIT UGJMED-60LMU11 TFUE-30ZD7

OKUMA BL-120E-20T MOTOR BL120E20T W/ ENCODER ABS-FB-D20