当前位置:首页 > 专业词汇

故障排查及其解决方法

发布时间:2014-11-12      阅读次数:1110

故障排查及其解决方法

表 1 给出了稳定器的故障排查及其解决方法。 在更换部件或进行更复杂的故障诊断之前,应先使用诊断二极管(LED),检查 A901 模块和 CAN/Profibus 现场总线通道 A650 之间的通讯情况。


表1.  稳定器故障排查及其解决方法


故障现象 可能的原因 解决方法
  
稳定器信号灯一直不亮 A901模块或现场总线通道B650未接通电源 如果发光二极管不亮,则检查熔断器。
 灯丝烧断 检查灯。如若需要,则应进行更换。
 CAN总线故障 请参阅第4.1章和 第4.2章
 传感器故障 如果CAN总线完好,而A901模块工作正常,则应更换传感器 B901。
  
稳定器信号灯无法熄灭 CAN总线故障 请参阅第4.1和4.2章
 传感器故障 如果CAN总线完好,而A901模块工作正常,则应更换传感器B901。
  
稳定器指示灯闪烁30秒,但转动不衰减 可编程控制器参数错误 检查操作面板的稳定器参数
 侧移电机接触器损坏 检查电机接触器
 传感器故障 如果CAN总线完好,而A901模块工作正常,则应更换传感器B901。

 

页码 篇 日期 名称 
24/28 EH05-0005 04-09-10 司机室 

 

05.1.1.4. 用发光二极管(LED)诊断A650

在正常运转时,发光二极管(LED)不会熄灭(例如,二极管闪烁或一直点亮)。
列于下表中的二极管依次约每六秒种闪烁一次。

 
图3: 故障诊断发光二极管(LED)的位置

 

  名称 日期 篇 页码
 司机室 04-09-10 EH05-0005 25/28


表 2: 用A650中的发光二极管(LED)诊断 CAN 总线和 Profibus 现场总线

LED 编号 功能 状态 含义 解决方法
    
1 号LED
(红色) CAN总线的状态 关闭 未接通电源 检查24V电源
  瞬闪1次 CAN总线故障 检查CAN总线电线
  瞬闪3次 CAN总线断电 检查CAN总线电线
  瞬闪-长闪-长闪 CAN总线报警 -
  开 CAN总线正常 -
   
2号LED(红色) PROFIBUS现场总线模块的状态  关闭 未接通电源 检查24V电源
   
 瞬闪1次 寻找波特率 检查PROFIBUS现场总线的接线是否正确。检查 PROFIBUS现场总线是否有故障,是否存在短路,终端阻抗是否处于错误位置。
   
 瞬闪2次 监控波特率 检查指定的PROFIBUS现场总线地址。
   
 瞬闪3次 待机,以便进行参数报文。 参数报文故障。采用SIMATIC-Manager软件或SFC13系统进行功能故障诊断。(DPNRM_DG)
   
 瞬闪4次 待机,以便配置报文进行。 配置报文故障。用SIMATIC-Manager软件或SFC13系统功能故障诊断(DPNRM_DG)
   
 开 PROFIBUS现场总线正常 -
    
3号LED
(红色) PROFIBUS现场总线数据交换 电源切断 无数据交换 -
  电源接通 通过PROFIBUS现场总线进行数据交换 -
 


05.1.1.3. Troubleshooting
Stabilizer fault tracing table is shown in Table 1. It is good practice to check communication
between the stabilizer module A901 and CAN/Profibus gateway A650 using diagnostic LEDs,
before replacing any hardware or doing more complicated troubleshooting.
Table 1. Stabilizer fault tracing.
FAULT POSSIBLE CAUSE CORRECTIVE ACTION
Stabilizer signal
light is always off
No power in A901 or B650 If LEDs are off, check fuse
Broken lamp Check the lamp and
change if necessary
Error in CAN bus Refer to chapters 4.1 and
4.2
Sensor error If CAN bus OK and A901
has healthy heart beat,
change sensor B901
Stabilizer signal
light is always on
Error in CAN bus Refer to chapters 4.1 and
4.2
Sensor error If CAN bus OK and A901
has healthy heart beat,
change sensor B901
Stabilizer signal
light is blinking 30
seconds but rota-
tion is not damp-
ing
Wrong parameters in PLC Check the stabilizer para-
meters on Operator’s
panel
Broken side shift motor contactor Check motor contactors
Sensor error If CAN bus OK and A901
has healthy heart beat,
change sensor B901
Page Group Date Description
24/28 EH05- -0005 04- -09- -10 Cabin
05.1.1.4. A650 diagnose using LEDs
In normal operation the LEDs are never switched off, i.e. they either flash or shine per-
manently. The flash sequences, which are listed in the following table are repeated
about every six seconds.
Figure 3. Position of diagnostic LEDs.
Description Date Group Page
Cabin 04- -09- -10 EH05- -0005 25/28
Table 2. CAN and Profibus diagnostics using LEDs in A650.
LED # Function Status Meaning Corrective action
LED 1
(red)
CAN bus
status
off no power supply Check 24 V power sup-
ply
1 x short flash CAN error Check CAN bus wiring.
3 x short flash CAN off Check CAN bus wiring.
short--long--
long
CAN warning --
on CAN bus OK --
LED 2
(red)
module
PROFIBUS
status
off no power supply Check 24 V power sup-
ply
1 x short flash looking for bit rate Check the PROFIBUS
connection. Fault in wir-
ing in PROFIBUS cable,
short circuit, terminating
impedance in wrong
position.
2 x short flash bit rate is monitored Check the PROFIBUS
address specified
3 x short flash waiting for parameter
telegram
Parameter telegram is
faulty. Diagnose via SI-
MATIC--Manager or sys-
tem function SFC13
(DPNRM_DG)
4 x short flash waiting for configur-
ation telegram
Configuration telegram
is faulty. Diagnose via
SIMATIC--Manager or
system function SFC13
(DPNRM_DG)
on PROFIBUS OK --
LED 3
(red)
PROFIBUS
data ex-
change
off no data exchange --
on data exchange via
PROFIBUS
--
Page Group Date Description
26/28 EH05- -0005 04- -09- -10 Cabin

  返回>>Top
上一篇:枪钻
下一篇:减压安全阀
-x