ABB VDA330A HIEE300025R2工控控制卡件
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内部电池安装在PM8xx处理器单元内（PM891除外）。由于电池不可再充电，因此定期更换电池非常重要（有关更多详细信息，请参阅维护频率表）。有关正确电池极性的详细信息，请从电池外壳上拆下右侧盖（参见第193页的图63和第194页的图64）。内部电池规格：•类型：低速率锂电池，3.6 V，950 mAh。•尺寸：ANSI尺寸½AA/IEC尺寸½R6•锂含量：0.3 g 5年SB821外部电池（如果安装）更换电池请参阅第195页SB821内部电池单元3年或400次放电循环SB822可充电外部电池（如安装）更换蓄电池请参阅第197页SB822充电外部电池单元本主题不适用于不含内部电池的PM891。由于电池并联，使用SB821外部电池时，有必要从PM8xx中取出内部电池，以避免减少可用的内存备份时间。可以在线更换AC 800M控制器的内部电池。但是，务必始终遵守标准安全工作规程。
The internal battery is mounted inside the PM8xx processor unit (except PM891). 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 details of correct battery polarity, remove the right-hand cover from the battery housing (see Figure 63 on page 193 and Figure 64 on page 194). 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 195 3 years or 400 discharge cycles SB822 Rechargeable External Battery (if fitted) Change battery See SB822 Rechargeable External Battery Unit on page 197 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.
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