6630-PMC A-B Digital Input Module
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6630-PMCPayment:
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IN STOCK6630-PMC A-B Digital Input Module
The status information of the Power Module is transmitted through the electrical-optical converter and sent to the main control unit. When there is a fault, the main control unit sends control signals to lockout or bypass the affected Power Module. The Power Module cabinet consists of Power Modules, current transformers and high-voltage cable. The Power Modules are divided evenly into three phases (U, V, and W). The units in each phase are connected end-to-end at the output terminals. Then individual phases are formed, using a star connection. Current transformers are installed into the U phase and W phase. Different models of Power Modules are used for VFDs of different power ratings (Figure 19).
Hall Effect Current Sensors (HECs) The Hall Effect Current Sensors are current transformers capable of measuring current throughout the output frequency range of the drive. They monitor the current waveform in each of the phases going to the motor and provide feedback to the control system. Top-mounted Main Cooling Fan(s) The Top-mounted Cooling Fans ensure reliable cooling of the Power Modules. They draw cool air in through the vents in the Power Module Cabinet doors, through the Power Modules, and exhaust the heated air out through the top of the cabinet.
The structure and details of the product：
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