1734-IR2E正品;
1734-IR2E正品;
1734-IR2E正品
日常维护
PLC的日常维护和保养比较简单,主要是更换丝和锂电池, 基本没有其它易损元器件。由于存放用户程序的随机存储器(RAM)、计数器和具有保持功能的辅助继电器等均用锂电池保护,锂电池的寿命大约为5年,当锂电池的电压逐渐降低到一定程度时,PLC基本单元上电池电压跌落到指示灯亮,提示用户注意有锂电池所支持的程序还可保留一周左右,必须更换电池,这是日常维护的主要内容。
调换锂电池的步骤为:
■在拆装前,应先让PLC通电15秒以上(这样可使作为存储器备用电源的电容器充电,在锂电池断开后,该电容可对PLC做短暂供电,以保护RAM 中的信息不丢失);
■断开PLC的交流电源;
■打开基本单元的电池盖板;
■取下旧电池,装上新电池;
■盖上电池盖板。
注意更换电池时间要尽量短,一般不允许超过3分钟。如果时间过长,RAM中的程序将消失。
此外,应注意更换丝时要采用型号的产品。
I/O模块的更换
若需替换一个模块,用户应确认被安装的模块是同类型。有些I/O系统允许带电更换模块,而有些则需切断电源。若替换后可解决问题,但在一相对较短时间后又发生故障,那么用户应检查能产生电压的感性负载,也许需要从外部其电流尖峰。如果丝在更换后易被烧断,则有可能是模块的输出电流超限,或输出设备被短路。
PLC的故障诊断是一个十分重要的问题,是***PLC控制系统正常、可靠运行的关键。本文对常用的故障诊断方法进行了探讨。在实际工作过程中,应充分考虑到对PLC的各种不利因素,定期进行检查和日常维护,以***PLC控制系统安全、可靠地运行。
ASEA BROWN BOVERI AF400-30-11-70 NSPP AF400301170
PACIFIC SCIENTIFIC R43HEAA-R2-NS-VS-02 NSPP R43HEAAR2NSVS02
ALLEN BRADLEY 1336F-BRF20-AN-EN-GMS1 NSPP 1336FBRF20ANENGM
ASEA BROWN BOVERI 57310001-CC/4 USPP 57310001C
HONEYWELL 2001-400-090-126-200-20-000001-2-0-00 NSFP 2001400090126200
ASEA BROWN BOVERI 57411490 USPP 57411490
TEXAS INSTRUMENTS PLC 100-3101 USPP 1003101
Panasonic AC Servo Motor MSMA021A1U Free Ship
DANFOSS 175L3216 NSPP 175L3216
MITSUBISHI A2N-CPU-P21 USPP A2NCPUP21
Texas Instruments 2497284 PC BD PM550 CMU-7K
TEXAS INSTRUMENTS PLC 55UA8110001025 USPP 55UA8110001025
SIEMENS SLE61000IGED6 NSFP SLE61000IGED6
Siemens TI305-02B Programmable Unit / PLC
TEXAS INSTRUMENTS PLC 505-4916 USPP 5054916
NEW SEAL TI Siemens 575-2104 5752104 VME PLC CPU
TEXAS INSTRUMENTS PLC 500-5002 USPP 5005002
FLUID POWER DIVISION PMC-10T USPP PMC10T
ASEA BROWN BOVERI 57360001-AN USPP 57360001AN
ASEA BROWN BOVERI ACH501-020-4-NOP2 USPP ACH5010204NOP2
PROFACE GP577R-T1-24VP NSPP GP577RT124VP
Panasonic AC Servo Motor MHMD082P1S
ASEA BROWN BOVERI OETL-NF1600SW USPP OETLNF1600SW
ALLEN BRADLEY 1334-COB-T1 USPP 1334CO1
SIEMANS TEXAS INSTRUMENTS 5057102 505-7102 MODULE
PERCEPTRON TRICAM LED LIGHT 923-0010 ~ Used
Texas Instruments 5TI-5500
TEXAS INSTRUMENTS PLC VPU210-3104 USPP VPU2103104
TEXAS INSTRUMENTS PLC 500-2114 USPP 5002114
TEXAS INSTRUMENTS PLC 555-1105 USPP 5551105
TEXAS INSTRUMENTS PLC 140-1112 NSFP 1401112
Texas Instruments 505-4232
Panasonic AC Servo Driver MSDZ013A1A Free Ship
TEXAS INSTRUMENTS 5TI I/0 EXPANDER 5TI-5500
ASEA BROWN BOVERI 48990001-FE USPP 48990001FE
TEXAS INSTRUMENTS PLC 505-CP1434TF NSFP 505CP1434TF
TEXAS INSTRUMENTS 500-5037-A *USED*
Texas Siemens Instrument 500-2151A Power Supply
TEXAS INSTRUMENTS PLC 575-2105 USPP 5752105
ASEA BROWN BOVERI DKH-E2601 NSFP DKHE2601
ADEPT TECH 100 USPP 100
MITSUBISHI MR-SO403S USPP MRSO403S
TOHNICHI LC2000 USPP LC2000
Texas Instruments 505-7354 MODULE NETWORK I/F 505 PEERLINK 2 LL, 5057354
CONTROL TECHNIQUES DXM-316C USPP DXM316C
TEXAS INSTRUMENTS PLC 505-6860 USPP 5056860
Panasonic MSD021P1E AC servo driver 100V 200W
ASEA BROWN BOVERI AF260-20-22-72 NSFP AF260202272
One Panasonic AC Servo Driver DV85018HA502
TEXAS INSTRUMENTS PLC 505-4516 NSPP 5054516
ASEA BROWN BOVERI 3HAA3563-AMA/0 USPP 3HAA3563AMA0
Texas Instruments 8 Slot PLC Rack 405 U-20T U-15T U-25N
ALLEN BRADLEY 813S-VOA USPP 813SVOA
ALLEN BRADLEY 196258 USPP 196258
TEXAS INSTRUMENTS 5TI I/0 EXPANDER 5TI-5500
ELECTRO CRAFT 9101-1131 USPP 91011131
TEXAS INSTRUMENTS PLC 435-CPU USPP 435CPU
PANASONIC SERVO MOTOR MSM022Q8V
MITSUBISHI HC-H153BS-A42 NSFP HCH153BSA42
MODICON 171-CCC-980-30 FNFP 171CCC98030
Texas Instruments 505-6516
ALLEN BRADLEY 3500IOC USPP 3500IOC
Panasonic AC Servo Motor MSM3AZA2AX Free Ship
TEXAS INSTRUMENTS PLC 505-7339 NSFP 5057339
TEXAS INSTRUMENTS PLC 505-ATM-0440 NSPP 50***TM0440
CONTROL TECHNIQUES DXE-430 USPP DXE430
Returns: Not accepted
PANASONIC SERVO MOTOR MDM202A1G
ALLEN BRADLEY 825-P USPP 825P
TEXAS INSTRUMENTS PLC 505-7339 NSPP 5057339
TEXAS INSTRUMENTS 500-5019 WORD OUTPUT MODULE NEW 5005019
ASEA BROWN BOVERI GJR6100710R0001 USPP GJR6100710R0001
ASEA BROWN BOVERI OES200J3FC NSPP OES200J3FC
Panasonic AC Servo Driver Driver MSD043A1XXE Free Ship
Texas Instruments 5TI-3000
ASEA BROWN BOVERI NINT-52 NSFP NINT52
OMRON CS1W-SLK21 USPP CS1WSLK21
PANASONIC SERVO MOTOR MSM022Q8V