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Control Van/Controls
Solution/Reference - TM-5-3895-374-24-2_761

TM-5-3895-374-24-2 M081 Asphalt Mixing Plant Manual
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TM 5-3895-374-24-2 Problem Cause Solution/Reference Broken control cable Check cable for breaks or external damage and replace if damaged Control cable not plugged in Insert plug into receptacle Pulses not being generated by tack Check with frequency meter for pulses at TB4 pin 1 & 2 24 volt DC 0-100Hz Pulses not being transmitted to control panel Check cables and connections Check for pulses at TB4 pin 21 and 22 on blend I/O card See electrical drawing AA00313 4-4-2.  Motor Controls Problem Cause Solution/Reference Motor fails to start Starter overload tripped Reset on MCC Starter breaker tripped Reset on MCC Starter breaker ground fault Check plug receptacle Cord not connected Check system interlock Interlock not complete Motor control computer failure Check PLC I/O cards Control circuit fuse failed Check fuse Standby generator operating Switch to primary generators page 4 - 5







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