5204-DFNT-PDPM模块备件

5204-DFNT-PDPM

表30.内部/SB821/SB822外部电池/故障查找
故障、可能原因和纠正措施
B（电池）LED指示灯亮
PM8xx处理器单元为：
闪烁
内部电池
•更换PM8xx内部电池
SB821：
•检查外部电池连接。
如果情况持续存在：
•更换外部电池，请参阅SB821
外部电池装置，195页。
SB822：
•检查外部电池连接。
如果SB822上的充电LED和/或电源LED点亮
关闭：
•检查24V电源连接。
如果情况持续存在：
•更换锂离子电池组件，请参阅
SB822可充电外部电池单元
197页。
系统时间不正确
在电源故障之后
更换外部电池。
5节维护PROFIBUS DP–CI851
3BSE036351-510 A 209
PROFIBUS DP–CI851
表31.PROFIBUS DP CI851–故障查找
故障、可能原因和纠正措施
无论是R（un）还是F（ault）LED
是吗
CI851板正在重新启动或配置。留出时间完成这项工作。
如果该情况持续存在，以及机器上的所有其他装置
CEX总线具有不发光的LED：
•检查有效的硬件配置，包括：
将CI851下载到控制器。
•检查PM8xx内的CEX总线保险丝
处理器单元。
•从PM8xx启动复位信号（INIT）
处理器单元。
•更换CI851装置。
F（故障）指示灯亮起。检查所有电缆和连接器是否损坏，
端子松动或不正确。
•必要时进行维修。
R（un）指示灯闪烁。检查相关装置是否正在发送数据。
检查CI851板是否正在运行
正在重新启动或配置。如果是这样，请留出时间
这是后定稿。
如果该情况持续存在：
•停止应用程序并启动
重新启动。
•更换CI851板。
基金会现场总线H1–CI8525节维护
210 3BSE036351-510 A
基金会现场总线H1–CI852
表32.基金会现场总线H1 CI852–故障查找
故障、可能原因和纠正措施
R（un）和F（ault）
LED不亮
CI852板正在重新启动，或
配置。留出时间完成这项工作。
如果该情况持续存在，且CEX总线上的所有单元都已安装
非发光LED：
•检查包括CI852在内的有效硬件配置是否正确
下载到控制器。
•检查PM8xx处理器单元内的CEX总线保险丝。
•从PM8xx处理器启动复位信号（INIT）
单元
•更换CI852装置。
F（ault）指示灯亮起。使用Control Builder软件请求状态信息
从CI852单元开始，并相应地进行：
•从PM8xx处理器启动复位信号（INIT）
单元
•更换CI852装置。
5节维护基金会现场总线H1–CI852
3BSE036351-510 A 211
一个或多个字段
设备似乎
慢
回应或
完全死亡
网络
问题是
证明非常
难解
1.一种装置可以是：
•地址错误。
•连接极性不正确。
•故障并导致机器故障或负载过重
网络
2.现场总线电缆可以：
•因短路、断路或接地而损坏
数据线（可能是间歇的）。
•被错误终止。
•包含因不正确而极性反转的部分
连接。
•由于损坏或损坏导致电源电压下降
连接。
3.网络电源可能有故障。
•整流网络电源。
考虑工厂内可能的活动，例如：
作为维护或修理工作
问题在完全排除此可能性后，请按以下步骤进行：
通过以下方式检查供电网络中的直流电源电压：
数字电压表，其输入电容小于
1000pF。
表32.基金会现场总线H1 CI852–故障查找（续）
故障、可能原因和纠正措施
基金会现场总线H1–CI8525节维护
212 3BSE036351-510 A
网络
问题是
证明非常
难解
（续）。
使用示波器检查通信信号是否正确
异常。
•示波器必须为差动式或电池式
操作类型。
•探头必须具有至少1 MOhm的输入
并且输入电容小于1000pF。
断开网络的各个部分，包括以太网端口
通过PM8xx处理器单元，直到其尺寸减小到：
功能正确。
•应使用手持式现场总线主单元来进行以下操作：
网络中不同点的连接。
•通过重新连接电缆来定位不可用部分
一次一节。在坏的情况下，它可能
需要逐个移除设备以识别故障
有毛病的东西。
•可使用欧姆表（电阻）检查电缆
数字电压表的功能。隔离电源
并在进行检查之前断开所有其他设备。
•对于大型网络，应安装网络分析仪
雇佣。分析仪必须是su

5204-DFNT-PDPM

5204-DFNT-PDPM

Table 30. Internal / SB821/SB822 External Battery/– Fault-Finding Fault Possible Cause and Corrective Action B(attery) LED indicator on PM8xx processor unit is flashing Internal battery • Renew the PM8xx internal battery SB821: • Check external battery connections. If condition persists: • Renew the External battery, see SB821 External Battery Unit on page 195. SB822: • Check external battery connections. If Charge LED and or Power LED on SB822 are turned off: • Check 24V supply connections. If condition persists: • Renew the Li-Ion battery package, see SB822 Rechargeable External Battery Unit on page 197. The system time is incorrect following a power failure Renew the External Battery. Section 5 Maintenance PROFIBUS DP – CI851 3BSE036351-510 A 209 PROFIBUS DP – CI851 Table 31. PROFIBUS DP CI851 – Fault-Finding Fault Possible Cause and Corrective Action Neither R(un) nor F(ault) LEDs are ON The CI851 board is in the process of being restarted or configured. Allow time for this to finalize. If the condition persists, and all other units on the CEX-Bus have non-illuminated LEDs: • Check that a valid HW configuration including the CI851 is downloaded to the controller. • Check the CEX-Bus fuse inside the PM8xx processor unit. • Initiate a reset signal (INIT) from the PM8xx processor unit. • Replace the CI851 unit. F(ault) LED is ON Check all cables and connectors for damage, loose or incorrect terminations. • Repair as necessary. R(un) LED is flashing Check that the relevant units are sending data. Check if the CI851 board is in the process of being restarted or configured. If so, allow time for this finalize. If the condition persists: • Halt the application program and initiate a restart. • Replace the CI851 board. FOUNDATION Fieldbus H1 – CI852 Section 5 Maintenance 210 3BSE036351-510 A FOUNDATION Fieldbus H1 – CI852 Table 32. FOUNDATION Fieldbus H1 CI852 – Fault-Finding Fault Possible Cause and Corrective Action R(un) and F(ault) LEDs are not ON The CI852 board is in the process of being restarted or configured. Allow time for this to finalize. If the condition persists, and all units on the CEX-Bus have non-illuminated LEDs: • Check that a valid HW configuration including the CI852 is downloaded to the controller. • Check the CEX-Bus fuse inside the PM8xx processor unit. • Initiate a reset signal (INIT) from the PM8xx processor unit. • Replace the CI852 unit. F(ault) LED is ON Use the Control Builder software to demand status information from the CI852 unit and proceed accordingly: • Initiate a reset signal (INIT) from the PM8xx processor unit. • Replace the CI852 unit. Section 5 Maintenance FOUNDATION Fieldbus H1 – CI852 3BSE036351-510 A 211 One or more field devices appear to be slow to respond or completely dead The network problem is proving very difficult to solve 1.A device may be: • Incorrectly addressed. • Connected with incorrect polarity. • Faulty and causing breakdown or heavy loading of the network. 2. The fieldbus cable may: • Be damaged causing a short-circuit, breaks or grounding of the data wires, (possibly intermittent). • Be incorrectly terminated. • Contain sections having reversed polarity due to incorrect connections. • Cause supply voltage drops due to damage or bad connections. 3. The network power supply may be faulty. • Rectify the network power supply. Give consideration to possible activities within the plant, such as maintenance or repair work, which may be causing the problem. Having totally ruled this out, then proceed as follows: Check the DC supply voltage in powered networks by means of a digital voltmeter having an input capacitance of less than 1000 pF. Table 32. FOUNDATION Fieldbus H1 CI852 – Fault-Finding (Continued) Fault Possible Cause and Corrective Action FOUNDATION Fieldbus H1 – CI852 Section 5 Maintenance 212 3BSE036351-510 A The network problem is proving very difficult to solve (continued). Use an oscilloscope to check the communication signals for abnormalities. • The oscilloscope must be of differential or battery operated type. • Probes must have a minimum of 1 MOhm input resistance, and less than 1000 pF input capacitance. Disconnect sections of the network, including the Ethernet port via the PM8xx processor unit, until it is reduced to a size that functions correctly. • A hand-held fieldbus master unit should be used to make connections at different points in the network. • Locate the unserviceable section by reconnecting the sections one at a time. In the worst possible case, it may be necessary to remove devices one by one to identify the faulty item. • Cables can be checked using the ohmmeter (resistance) function of a digital voltmeter. Isolate the power supply and disconnect all other devices before making the check. • For large networks, a network analyzer should be employed. The analyzer must be su