ABB DO820 !!! ---mail to: sales3@amikon.cn
Email: sales3@amikon.cn
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The SD83X series of power supply units comfortably handle the short power interruptions (<20 milli seconds) that may occur normally within an industrial environment. Despite this, it is sometimes necessary to protect certain applications against brief voltage failures by the installation of an Uninterruptable Power Supply (UPS) device.
The AC 800M controller will shut down safely in the event of a power failure. During down-time, the application memory and the system clock will be backed up by the internal battery. In systems subject to long non-operational periods, it is recommended that an external battery back-up unit be installed. When the power supply is reconnected, the AC 800M Controller will re-start and run the application as normal.
ABB DO820
DO820 | ABB | Digital Output Module
The interference suppression for external signals, are normally directly grounded to chassis and/or plant ground. The plant ground potential must be stable and well defined, even in the event of a low ground fault caused by high voltage equipment or a lightning strike.
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