GE 通用电气 综合保护继电器 469-P5-HI-A20-E-H SR469-CASE
更多详情请参见维护频率表）。详情
纠正蓄电池极性，从蓄电池壳体上拆下右侧盖
（参见第201页图68和第202页图69）。
内部电池规格：
•类型：低速率锂电池，3.6V，950毫安时。
•尺寸：ANSI尺寸½AA/IEC尺寸½R6
•锂含量：0.3克
5年SB821
外部电池
（如已安装）
更换电池
请参见第页的SB821外部电池单元
203
3年或400年
放电循环
SB822
可充电
外部电池
（如已安装）
更换电池
参见SB822可充电外部电池
第205页单元
本主题不适用于不包含内部电池的PM891。
由于电池并联连接，在使用
SB821外部电池，从PM8xx中卸下内部电池，以便
避免减少可用内存和备份时间。
可以使用AC 800M控制器在线更换内部电池。
但是，务必始终遵守标准安全工作规程。
表24预防性维护频率表（续）
频率设备程序
第5节内部电池的维护
3BSE036351-600 A 201
在以下情况下，必须更换电池：
•PM8xx B（电池）LED闪烁或熄灭。
•发生多次或长时间停电。
•因维护而延长了系统停机时间，或
故障。
出于安全原因，仅在AC 800M通电时更换电池。
图68.右侧盖拆卸-此处显示PM860
掩蔽
固定螺钉
内部的
电池
持有人
内部电池第5节维护
202 3BSE036351-600 A
更换内部电池：
1.使用一字螺丝刀，从PM8xx上松开固定螺钉，然后
拆下右侧盖。
2.识别并拆下内部电池。
3.重新建立电源时，确保B（电池）LED点亮
4.更换PM8xx右侧盖并拧紧螺钉。
5.以经批准的方式处置耗尽的锂电池。
插入可维修的蓄电池，并检查蓄电池极性和方向是否正确
根据壳体上的标记，正确。
图69.内部电池位置-此处显示PM860
F
R
P
B
初始化
PM860
德克萨斯州
处方药
CN1 CN2 COM3 COM4
+
–
发射发射发射
接收，接收，接收
电池
内部的
第5节SB821外部电池单元的维护
3BSE036351-600 A 203
SB821外部电池单元
外部电池安装在SB821外部电池单元内部。自从
电池不可充电，定期更换非常重要（请参阅
维护频率表以了解更多详细信息）。用于访问电池
取下盖子（参见第204页图70）。更换
电池，确保检查极性和方向正确。
外部电池规格：
•类型：低速率锂电池，3.6 V，16 Ah
•尺寸：ANSI尺寸D/IEC R20
•锂含量：5.6克
在以下情况下，必须更换电池：
•PM8xx B（电池）LED闪烁或熄灭。
•发生多次或长时间停电。
•因维护而延长了系统停机时间，或
故障。
更换SB821外部电池单元中的电池
要更换外部电池：
1.断开SB821单元电缆连接器。
2.从DIN导轨上释放SB821装置。
3.小心拆下SB821装置盖并识别外部电池。
4.阅读并遵守外部电池上的警告标签/文字。
5.小心地拆下电池。
6.插入一个可维修的蓄电池，并检查蓄电池极性和方向是否正确
对的有关更多电池详情，请参阅SB821外部电池–AC 800M
第417页的内存备份。
由于电池并联连接，在使用
SB821外部电池，用于从处理器单元卸下内部电池
以避免减少可用存储器备份时间。 GE 通用电气 综合保护继电器 469-P5-HI-A20-E-H SR469-CASE
 GE 通用电气 综合保护继电器 469-P5-HI-A20-E-H SR469-CASE
fer to the Maintenance Frequency Schedule for further details). For details of
correct battery polarity, remove the right-hand cover from the battery housing
(see Figure 68 on page 201 and Figure 69 on page 202).
Specifications for the internal battery:
• Type: Low-rate lithium battery, 3.6 V, 950 mAh.
• Size: ANSI Size ½ AA / IEC size ½ R6
• Lithium contents: 0.3 g
5 Years SB821
External Battery
(if fitted)
Change battery
See SB821 External Battery Unit on page
203
3 years or 400
discharge cycles
SB822
Rechargeable
External Battery
(if fitted)
Change battery
See SB822 Rechargeable External Battery
Unit on page 205
This topic does not apply to PM891, which does not contain internal battery.
Due to the batteries being connected in parallel, it is necessary, when using the
SB821 external battery, to remove the internal battery from the PM8xx in order to
avoid reducing available memory back-up time.
It is possible to replace the internal battery with the AC 800M Controller online.
However, be sure to observe standard safe working practices at all times.
Table 24. Preventive Maintenance Frequency Schedule (Continued)
Frequency Equipment Procedure
Section 5 Maintenance Internal Battery
3BSE036351-600 A 201
The battery must be exchanged whenever:
• The PM8xx B(attery) LED flashes or is extinguished.
• Multiple or extended power cuts have occurred.
• Extended periods of system downtime have occurred for maintenance or
malfunctions.
For reasons of safety, exchange the battery only when the AC 800M is powered up.
Figure 68. Right-hand Cover Removal – here shown with PM860
Cover
Captive screw
Internal
battery
holder
Internal Battery Section 5 Maintenance
202 3BSE036351-600 A
To exchange the internal battery:
1. Using a blade screwdriver, release the captive screw from the PM8xx and
remove the right-hand cover.
2. Identify and remove the internal battery.
3. When power is re-established, ensure that the B(attery) LED is illuminated
4. Replace the PM8xx right-hand cover and tighten the screw.
5. Dispose of the run-down Lithium battery in an approved manner.
Insert a serviceable battery and check that battery polarity and orientation are
correct, according to the marking on the housing.
Figure 69. Internal Battery Location – here shown with PM860
F
R
P
B
INIT
PM860
Tx
Rx
CN1 CN2 COM3 COM4
+
–
Tx Tx Tx
Rx Rx Rx
battery
Internal
Section 5 Maintenance SB821 External Battery Unit
3BSE036351-600 A 203
SB821 External Battery Unit
The external battery is mounted inside the SB821 External Battery unit. Since the
battery is not rechargeable, it is important to exchange it on a regular basis (refer to
the Maintenance Frequency Schedule for further details). For access to the battery
and housing, remove the cover (see Figure 70 on page 204). When replacing the
battery, be sure to check that polarity and orientation are correct.
Specifications for the external battery:
• Type: Low-rate lithium battery, 3.6 V, 16 Ah
• Size: ANSI Size D / IEC R20
• Lithium contents: 5.6 g
The battery must be exchanged whenever:
• The PM8xx B(attery) LED flashes or is extinguished.
• Multiple or extended power cuts have occurred.
• Extended periods of system downtime have occurred for maintenance or
malfunctions.
Replacing the Battery in an SB821 External Battery Unit
To replace an external battery:
1. Disconnect the SB821 unit cable connector.
2. Release the SB821 unit from the DIN-rail.
3. Carefully remove the SB821 unit cover and identify the external battery.
4. Read and comply with the Warning label/text on the external battery.
5. Carefully remove the battery.
6. Insert a serviceable battery and check that battery polarity and orientation are
correct. For further battery details see SB821 External Battery – AC 800M
Memory Back-up on page 417.
Due to the batteries being connected in parallel, it is necessary, when using the
SB821 external battery, to remove the internal battery from the processor unit
in order to avoid reducing available memory back-up time. | GE 通用电气 综合保护继电器 469-P5-HI-A20-E-H SR469-CASE | | | |
