故障排查及其解決方法
表 1 給出了穩(wěn)定器的故障排查及其解決方法。 在更換部件或進行更復(fù)雜的故障診斷之前,應(yīng)先使用診斷二極管(LED),檢查 A901 模塊和 CAN/Profibus 現(xiàn)場總線通道 A650 之間的通訊情況。
表1. 穩(wěn)定器故障排查及其解決方法
故障現(xiàn)象 可能的原因 解決方法
穩(wěn)定器信號燈一直不亮 A901模塊或現(xiàn)場總線通道B650未接通電源 如果發(fā)光二極管不亮,則檢查熔斷器。
燈絲燒斷 檢查燈。如若需要,則應(yīng)進行更換。
CAN總線故障 請參閱第4.1章和 第4.2章
傳感器故障 如果CAN總線完好,而A901模塊工作正常,則應(yīng)更換傳感器 B901。
穩(wěn)定器信號燈無法熄滅 CAN總線故障 請參閱第4.1和4.2章
傳感器故障 如果CAN總線完好,而A901模塊工作正常,則應(yīng)更換傳感器B901。
穩(wěn)定器指示燈閃爍30秒,但轉(zhuǎn)動不衰減 可編程控制器參數(shù)錯誤 檢查操作面板的穩(wěn)定器參數(shù)
側(cè)移電機接觸器損壞 檢查電機接觸器
傳感器故障 如果CAN總線完好,而A901模塊工作正常,則應(yīng)更換傳感器B901。
頁碼 篇 日期 名稱
24/28 EH05-0005 04-09-10 司機室
05.1.1.4. 用發(fā)光二極管(LED)診斷A650
在正常運轉(zhuǎn)時,發(fā)光二極管(LED)不會熄滅(例如,二極管閃爍或一直點亮)。
列于下表中的二極管依次約每六秒種閃爍一次。
圖3: 故障診斷發(fā)光二極管(LED)的位置
名稱 日期 篇 頁碼
司機室 04-09-10 EH05-0005 25/28
表 2: 用A650中的發(fā)光二極管(LED)診斷 CAN 總線和 Profibus 現(xiàn)場總線
LED 編號 功能 狀態(tài) 含義 解決方法
1 號LED
(紅色) CAN總線的狀態(tài) 關(guān)閉 未接通電源 檢查24V電源
瞬閃1次 CAN總線故障 檢查CAN總線電線
瞬閃3次 CAN總線斷電 檢查CAN總線電線
瞬閃-長閃-長閃 CAN總線報警 -
開 CAN總線正常 -
2號LED(紅色) PROFIBUS現(xiàn)場總線模塊的狀態(tài) 關(guān)閉 未接通電源 檢查24V電源
瞬閃1次 尋找波特率 檢查PROFIBUS現(xiàn)場總線的接線是否正確。檢查 PROFIBUS現(xiàn)場總線是否有故障,是否存在短路,終端阻抗是否處于錯誤位置。
瞬閃2次 監(jiān)控波特率 檢查指定的PROFIBUS現(xiàn)場總線地址。
瞬閃3次 待機,以便進行參數(shù)報文。 參數(shù)報文故障。采用SIMATIC-Manager軟件或SFC13系統(tǒng)進行功能故障診斷。(DPNRM_DG)
瞬閃4次 待機,以便配置報文進行。 配置報文故障。用SIMATIC-Manager軟件或SFC13系統(tǒng)功能故障診斷(DPNRM_DG)
開 PROFIBUS現(xiàn)場總線正常 -
3號LED
(紅色) PROFIBUS現(xiàn)場總線數(shù)據(jù)交換 電源切斷 無數(shù)據(jù)交換 -
電源接通 通過PROFIBUS現(xiàn)場總線進行數(shù)據(jù)交換 -
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
--
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