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輸入回路檢修
判斷某只按扭、限位、線路等輸入回路的好壞,可在PLC通電情況下(在非運行狀態(tài),以防設(shè)備誤動作),按下按扭(或其他輸入接點),這時對應(yīng)的PLC輸入點端子與公共端被短接,按扭所對應(yīng)的PLC輸入指示燈亮,說明此按扭及線路正常。燈不亮,可能按扭壞、線路接觸不良或者斷線。若進一步判斷,按扭如果是好的,那么用萬用表的一根表筆,一頭接PLC輸入端的公共端,另一頭接觸所對應(yīng)的PLC輸入點(上述操作要小心,千萬不要碰到220V或110V輸入端子上)。此時指示燈亮,說明線路存在故障。指示燈不亮,說明此PLC輸入點已損壞(此情況少見,一般強電入侵所致)。
輸出回路檢修
對于PLC輸出點(這里僅談繼電器輸出型),若動作對象所對應(yīng)的指示燈不亮,在確定PLC在運行狀態(tài)下,那么說明此動作對象的PLC輸入輸出邏輯功能沒有滿足,也就是說輸入回路出故障,按前面講的,檢查輸入回路。若所對應(yīng)的指示燈亮,但所對應(yīng)的執(zhí)行元件如電磁閥、接觸器不動作,先查電磁閥控制電源及保險器,zui簡便的方法,用電筆去量所對應(yīng)PLC輸出點的公共端子。電筆不亮,可能對應(yīng)保險絲熔斷等電源故障。電筆亮,說明電源是好的,所對應(yīng)的電磁閥、接觸器、線路出故障。排除電磁閥、接觸器、線路等故障后,仍不正常,就利用萬用表一只表筆,一頭接對應(yīng)的輸出公共端子,另一頭接觸所對應(yīng)的PLC輸出點,這時電磁閥等仍不動作,說明輸出線路出故障。
如果這時電磁閥動作,那么問題在PLC輸出點上。由于電筆有時會虛報,可用另一種方法分析,用萬用表電壓檔量PLC輸出點與公共端的電壓,電壓為零或接近零,說明PLC輸出點正常,故障點在外圍。若電壓較高,說明此觸點接觸電阻太大,已損壞。另外,當指示燈不亮,但對應(yīng)的電磁閥、接觸器等動作,這可能此輸出點因過載或短路燒牢。這時應(yīng)把此輸出點的外接線拆下來,再用萬用表電阻檔去量輸出點與公共端的電阻,若電阻較小,說明此觸點已壞,若電阻無窮大,說明此觸點是好的,應(yīng) 是所對應(yīng)的輸出指示燈已壞。
程序邏輯推斷
現(xiàn)在工業(yè)上經(jīng)常使用的PLC種類繁多,對于低端的PLC而言,梯形圖指令大同小異,對于中機,如S7-300,許多程序是用語言表編的。實用的梯形圖必須有中文符號注解,否則閱讀很困難,看梯形圖前如能大概了解設(shè)備工藝或操作過程 ,看起來比較容易。若進行電氣故障分析,一般是應(yīng)用反查法或稱反推法,即根據(jù)輸入輸出對應(yīng)表,從故障點找到對應(yīng)PLC的輸出繼電器,開始反查滿足其動作的邏輯關(guān)系。經(jīng)驗表明,查到一處問題,故障基本可以排除,因為設(shè)備同時發(fā)生兩起及兩起以上的故障點是不多的。
輸入回路檢修
判斷某只按扭、限位、線路等輸入回路的好壞,可在PLC通電情況下(在非運行狀態(tài),以防設(shè)備誤動作),按下按扭(或其他輸入接點),這時對應(yīng)的PLC輸入點端子與公共端被短接,按扭所對應(yīng)的PLC輸入指示燈亮,說明此按扭及線路正常。燈不亮,可能按扭壞、線路接觸不良或者斷線。若進一步判斷,按扭如果是好的,那么用萬用表的一根表筆,一頭接PLC輸入端的公共端,另一頭接觸所對應(yīng)的PLC輸入點(上述操作要小心,千萬不要碰到220V或110V輸入端子上)。此時指示燈亮,說明線路存在故障。指示燈不亮,說明此PLC輸入點已損壞(此情況少見,一般強電入侵所致)。
輸出回路檢修
對于PLC輸出點(這里僅談繼電器輸出型),若動作對象所對應(yīng)的指示燈不亮,在確定PLC在運行狀態(tài)下,那么說明此動作對象的PLC輸入輸出邏輯功能沒有滿足,也就是說輸入回路出故障,按前面講的,檢查輸入回路。若所對應(yīng)的指示燈亮,但所對應(yīng)的執(zhí)行元件如電磁閥、接觸器不動作,先查電磁閥控制電源及保險器,zui簡便的方法,用電筆去量所對應(yīng)PLC輸出點的公共端子。電筆不亮,可能對應(yīng)保險絲熔斷等電源故障。電筆亮,說明電源是好的,所對應(yīng)的電磁閥、接觸器、線路出故障。排除電磁閥、接觸器、線路等故障后,仍不正常,就利用萬用表一只表筆,一頭接對應(yīng)的輸出公共端子,另一頭接觸所對應(yīng)的PLC輸出點,這時電磁閥等仍不動作,說明輸出線路出故障。
如果這時電磁閥動作,那么問題在PLC輸出點上。由于電筆有時會虛報,可用另一種方法分析,用萬用表電壓檔量PLC輸出點與公共端的電壓,電壓為零或接近零,說明PLC輸出點正常,故障點在外圍。若電壓較高,說明此觸點接觸電阻太大,已損壞。另外,當指示燈不亮,但對應(yīng)的電磁閥、接觸器等動作,這可能此輸出點因過載或短路燒牢。這時應(yīng)把此輸出點的外接線拆下來,再用萬用表電阻檔去量輸出點與公共端的電阻,若電阻較小,說明此觸點已壞,若電阻無窮大,說明此觸點是好的,應(yīng) 是所對應(yīng)的輸出指示燈已壞。
程序邏輯推斷
現(xiàn)在工業(yè)上經(jīng)常使用的PLC種類繁多,對于低端的PLC而言,梯形圖指令大同小異,對于中機,如S7-300,許多程序是用語言表編的。實用的梯形圖必須有中文符號注解,否則閱讀很困難,看梯形圖前如能大概了解設(shè)備工藝或操作過程 ,看起來比較容易。若進行電氣故障分析,一般是應(yīng)用反查法或稱反推法,即根據(jù)輸入輸出對應(yīng)表,從故障點找到對應(yīng)PLC的輸出繼電器,開始反查滿足其動作的邏輯關(guān)系。經(jīng)驗表明,查到一處問題,故障基本可以排除,因為設(shè)備同時發(fā)生兩起及兩起以上的故障點是不多的。
AMK Servo Motor DV5-4-4-I0F 1,2kW 6000r/min 3,3A Lüfter DV5-4-4-IOF
AMK KW 40 Amkasyn KW40 40kVA 66A 46264
AMK Amkasyn AW 25/38-3
AMK AN 20F Power Supply AN20F
AMK AW 4/8-3 Servo Drive Amkasyn + AW R02
AMK Servomotor DV5-2-4-I00 0,83kW max. 1000/6000
AMK Amkasyn AW 2/4-345620-9746-547696 AW-R02
AMK AMKASYN AW 4,5/945415 0-800Hz
AMK AZ-PS4 REV.01.08AZ-MC1-1.00
AMK AMKASYN AW 3/6 44624-9519-625
AMK AMKASYN 46303-0336-887338 KW 5 KW5 +KW-R03 + KW-EA2
AMK AW 25/38-3
AMK AMKASYN KWD 2 +2x KW-R03P
AMK Double Servo Drive AMKASYN KWD2 + 2xKW-R04
AMK Amkasyn KWF 1-0N
AMK Amkasyn KWD 1 Servo Drive KWD1 2x KW-R04 46773
AMK AMKASYN Servo Drive KW 2 + 1x KW-R04
AMK AN 20F
AMK AMKASYN AW 1,5/3AW1,5/3 Servo Drive44623 1,5kVA
AMK DT5-5-10-E00 2.00 Servomotor 1,2kW max.3500/6000
AMK AMKASYN Servo Drive KW2 KW 2 + 1x KW-R03
AMK AN 20 Power Supply AN20
B&R IPC5000 5C5001.01 KBA 5D5500.06 ID C0028031 5P5000:V1038
B&R Power Panel 3004PP320.1505-31
B&R Power Panel B&R5C2002.02 Rev. H0
B&R Panel PC 5C5601.11 IPC5600 5P56 Panel 5D5601.10
B&R Panel PC IPC 2001 5C2001.21
B&R Touchpanel 400 4PP420.1043-75 Rev.F0
B&R CP 260 3CP260.60-1 CPU Module REV.G0
B&R Industrial Automation NC352 3NC352.6
B&R Servomotor 8JSA65.EB025D000-0 max. 2500
B&R Power Panel 3004PP320.0571-35 Rev.F0
B&R NC154 3NC154.60-2 Axis Controller REV. F0
B&R IP151 3IP151.60-2 Rev. E0
B&R Power Panel PP220 LC-Display 4PP220.0571-45 Rev. L0 + IF772
B&R Power Panel 4PP120.0571-21
B&R Power Panel 4004PP420.0571-45 Rev.D0 + IF771
B&R Panel 5C5001.32IPC5000
B&R 5AP980.1505-K15
B&R Power Panel PP 41 4P3040.00-490
B&R NC154 3NC154.60-2 Axis
B&R CP 360 3CP360.60-1 CPU
B&R Panel Front 4D1166.00-590 Rev.C0 + 4C2200.01-510
B&R Servomotor 8MSA4L.E3-X4 max. 4500
B&R Acopos 1180 Servo Drive 8V1180.00-2Acopos1180
B&R Panel PC 5PC720.1214-00
B&R Power Panel 5005PP520.0573-00 REV A2 5PP5:463148.001-00
B&R Power Panel PP414P3040.01-490
B&R Power Panel 3005PP320.0571-39
B&R Power Panel 5005PP520.0573-00 REV B0 5PP5:463148.001-00
B&R Acopos 1180 Servo Drive 8V1180.00-2Acopos1180
B&R Power Panel 5 5PP220.0571-K01 Krones0-900-18-325-0
B&R Panel PC 5PC720.1214-00
AMK Servo Motor DV5-4-4-I0F 1,2kW 6000r/min 3,3A Lüfter DV5-4-4-IOF
AMK KW 40 Amkasyn KW40 40kVA 66A 46264
AMK Amkasyn AW 25/38-3
AMK AN 20F Power Supply AN20F
AMK AW 4/8-3 Servo Drive Amkasyn + AW R02
AMK Servomotor DV5-2-4-I00 0,83kW max. 1000/6000
AMK Amkasyn AW 2/4-345620-9746-547696 AW-R02
AMK AMKASYN AW 4,5/945415 0-800Hz
AMK AZ-PS4 REV.01.08AZ-MC1-1.00
AMK AMKASYN AW 3/6 44624-9519-625
AMK AMKASYN 46303-0336-887338 KW 5 KW5 +KW-R03 + KW-EA2
AMK AW 25/38-3
AMK AMKASYN KWD 2 +2x KW-R03P
AMK Double Servo Drive AMKASYN KWD2 + 2xKW-R04
AMK Amkasyn KWF 1-0N
AMK Amkasyn KWD 1 Servo Drive KWD1 2x KW-R04 46773
AMK AMKASYN Servo Drive KW 2 + 1x KW-R04
AMK AN 20F
AMK AMKASYN AW 1,5/3AW1,5/3 Servo Drive44623 1,5kVA
AMK DT5-5-10-E00 2.00 Servomotor 1,2kW max.3500/6000
AMK AMKASYN Servo Drive KW2 KW 2 + 1x KW-R03
AMK AN 20 Power Supply AN20
B&R IPC5000 5C5001.01 KBA 5D5500.06 ID C0028031 5P5000:V1038
B&R Power Panel 3004PP320.1505-31
B&R Power Panel B&R5C2002.02 Rev. H0
B&R Panel PC 5C5601.11 IPC5600 5P56 Panel 5D5601.10
B&R Panel PC IPC 2001 5C2001.21
B&R Touchpanel 400 4PP420.1043-75 Rev.F0
B&R CP 260 3CP260.60-1 CPU Module REV.G0
B&R Industrial Automation NC352 3NC352.6
B&R Servomotor 8JSA65.EB025D000-0 max. 2500
B&R Power Panel 3004PP320.0571-35 Rev.F0
B&R NC154 3NC154.60-2 Axis Controller REV. F0
B&R IP151 3IP151.60-2 Rev. E0
B&R Power Panel PP220 LC-Display 4PP220.0571-45 Rev. L0 + IF772
B&R Power Panel 4PP120.0571-21
B&R Power Panel 4004PP420.0571-45 Rev.D0 + IF771
B&R Panel 5C5001.32IPC5000
B&R 5AP980.1505-K15
B&R Power Panel PP 41 4P3040.00-490
B&R NC154 3NC154.60-2 Axis
B&R CP 360 3CP360.60-1 CPU
B&R Panel Front 4D1166.00-590 Rev.C0 + 4C2200.01-510
B&R Servomotor 8MSA4L.E3-X4 max. 4500
B&R Acopos 1180 Servo Drive 8V1180.00-2Acopos1180
B&R Panel PC 5PC720.1214-00
B&R Power Panel 5005PP520.0573-00 REV A2 5PP5:463148.001-00
B&R Power Panel PP414P3040.01-490
B&R Power Panel 3005PP320.0571-39
B&R Power Panel 5005PP520.0573-00 REV B0 5PP5:463148.001-00
B&R Acopos 1180 Servo Drive 8V1180.00-2Acopos1180
B&R Power Panel 5 5PP220.0571-K01 Krones0-900-18-325-0
B&R Panel PC 5PC720.1214-00
AMK Servo Motor DV5-4-4-I0F 1,2kW 6000r/min 3,3A Lüfter DV5-4-4-IOF
AMK KW 40 Amkasyn KW40 40kVA 66A 46264
AMK Amkasyn AW 25/38-3
AMK AN 20F Power Supply AN20F
AMK AW 4/8-3 Servo Drive Amkasyn + AW R02
AMK Servomotor DV5-2-4-I00 0,83kW max. 1000/6000
AMK Amkasyn AW 2/4-345620-9746-547696 AW-R02
AMK AMKASYN AW 4,5/945415 0-800Hz
AMK AZ-PS4 REV.01.08AZ-MC1-1.00
AMK AMKASYN AW 3/6 44624-9519-625
AMK AMKASYN 46303-0336-887338 KW 5 KW5 +KW-R03 + KW-EA2
AMK AW 25/38-3
AMK AMKASYN KWD 2 +2x KW-R03P
AMK Double Servo Drive AMKASYN KWD2 + 2xKW-R04
AMK Amkasyn KWF 1-0N
AMK Amkasyn KWD 1 Servo Drive KWD1 2x KW-R04 46773
AMK AMKASYN Servo Drive KW 2 + 1x KW-R04
AMK AN 20F
AMK AMKASYN AW 1,5/3AW1,5/3 Servo Drive44623 1,5kVA
AMK DT5-5-10-E00 2.00 Servomotor 1,2kW max.3500/6000
AMK AMKASYN Servo Drive KW2 KW 2 + 1x KW-R03
AMK AN 20 Power Supply AN20
B&R IPC5000 5C5001.01 KBA 5D5500.06 ID C0028031 5P5000:V1038
B&R Power Panel 3004PP320.1505-31
B&R Power Panel B&R5C2002.02 Rev. H0
B&R Panel PC 5C5601.11 IPC5600 5P56 Panel 5D5601.10
B&R Panel PC IPC 2001 5C2001.21
B&R Touchpanel 400 4PP420.1043-75 Rev.F0
B&R CP 260 3CP260.60-1 CPU Module REV.G0
B&R Industrial Automation NC352 3NC352.6
B&R Servomotor 8JSA65.EB025D000-0 max. 2500
B&R Power Panel 3004PP320.0571-35 Rev.F0
B&R NC154 3NC154.60-2 Axis Controller REV. F0
B&R IP151 3IP151.60-2 Rev. E0
B&R Power Panel PP220 LC-Display 4PP220.0571-45 Rev. L0 + IF772
B&R Power Panel 4PP120.0571-21
B&R Power Panel 4004PP420.0571-45 Rev.D0 + IF771
B&R Panel 5C5001.32IPC5000
B&R 5AP980.1505-K15
B&R Power Panel PP 41 4P3040.00-490
B&R NC154 3NC154.60-2 Axis
B&R CP 360 3CP360.60-1 CPU
B&R Panel Front 4D1166.00-590 Rev.C0 + 4C2200.01-510
B&R Servomotor 8MSA4L.E3-X4 max. 4500
B&R Acopos 1180 Servo Drive 8V1180.00-2Acopos1180
B&R Panel PC 5PC720.1214-00
B&R Power Panel 5005PP520.0573-00 REV A2 5PP5:463148.001-00
B&R Power Panel PP414P3040.01-490
B&R Power Panel 3005PP320.0571-39
B&R Power Panel 5005PP520.0573-00 REV B0 5PP5:463148.001-00
B&R Acopos 1180 Servo Drive 8V1180.00-2Acopos1180
B&R Power Panel 5 5PP220.0571-K01 Krones0-900-18-325-0
B&R Panel PC 5PC720.1214-00
AMK Servo Motor DV5-4-4-I0F 1,2kW 6000r/min 3,3A Lüfter DV5-4-4-IOF
AMK KW 40 Amkasyn KW40 40kVA 66A 46264
AMK Amkasyn AW 25/38-3
AMK AN 20F Power Supply AN20F
AMK AW 4/8-3 Servo Drive Amkasyn + AW R02
AMK Servomotor DV5-2-4-I00 0,83kW max. 1000/6000
AMK Amkasyn AW 2/4-345620-9746-547696 AW-R02
AMK AMKASYN AW 4,5/945415 0-800Hz
AMK AZ-PS4 REV.01.08AZ-MC1-1.00
AMK AMKASYN AW 3/6 44624-9519-625
AMK AMKASYN 46303-0336-887338 KW 5 KW5 +KW-R03 + KW-EA2
AMK AW 25/38-3
AMK AMKASYN KWD 2 +2x KW-R03P
AMK Double Servo Drive AMKASYN KWD2 + 2xKW-R04
AMK Amkasyn KWF 1-0N
AMK Amkasyn KWD 1 Servo Drive KWD1 2x KW-R04 46773
AMK AMKASYN Servo Drive KW 2 + 1x KW-R04
AMK AN 20F
AMK AMKASYN AW 1,5/3AW1,5/3 Servo Drive44623 1,5kVA
AMK DT5-5-10-E00 2.00 Servomotor 1,2kW max.3500/6000
AMK AMKASYN Servo Drive KW2 KW 2 + 1x KW-R03
AMK AN 20 Power Supply AN20
B&R IPC5000 5C5001.01 KBA 5D5500.06 ID C0028031 5P5000:V1038
B&R Power Panel 3004PP320.1505-31
B&R Power Panel B&R5C2002.02 Rev. H0
B&R Panel PC 5C5601.11 IPC5600 5P56 Panel 5D5601.10
B&R Panel PC IPC 2001 5C2001.21
B&R Touchpanel 400 4PP420.1043-75 Rev.F0
B&R CP 260 3CP260.60-1 CPU Module REV.G0
B&R Industrial Automation NC352 3NC352.6
B&R Servomotor 8JSA65.EB025D000-0 max. 2500
B&R Power Panel 3004PP320.0571-35 Rev.F0
B&R NC154 3NC154.60-2 Axis Controller REV. F0
B&R IP151 3IP151.60-2 Rev. E0
B&R Power Panel PP220 LC-Display 4PP220.0571-45 Rev. L0 + IF772
B&R Power Panel 4PP120.0571-21
B&R Power Panel 4004PP420.0571-45 Rev.D0 + IF771
B&R Panel 5C5001.32IPC5000
B&R 5AP980.1505-K15
B&R Power Panel PP 41 4P3040.00-490
B&R NC154 3NC154.60-2 Axis
B&R CP 360 3CP360.60-1 CPU
B&R Panel Front 4D1166.00-590 Rev.C0 + 4C2200.01-510
B&R Servomotor 8MSA4L.E3-X4 max. 4500
B&R Acopos 1180 Servo Drive 8V1180.00-2Acopos1180
B&R Panel PC 5PC720.1214-00
B&R Power Panel 5005PP520.0573-00 REV A2 5PP5:463148.001-00
B&R Power Panel PP414P3040.01-490
B&R Power Panel 3005PP320.0571-39
B&R Power Panel 5005PP520.0573-00 REV B0 5PP5:463148.001-00
B&R Acopos 1180 Servo Drive 8V1180.00-2Acopos1180
B&R Power Panel 5 5PP220.0571-K01 Krones0-900-18-325-0
B&R Panel PC 5PC720.1214-00