Ones_Zeros
Member
Hello
I have two 480v motors that has remote start capability.
When the remote start button is pressed the 1st motor starts in 15 seconds.
When the remote start button is pressed on the 2nd motor it starts in 30 seconds. I do this so they are not both started at the same time.
The issue that I’m having is if we lose the 480v power or blow a fuse, but
keep 110v power in the PLC panel because of a ups keeps it up. Then what happens is since the start Command was enabled on both motors before the power was lost, then they will both start after the 480v power is restored.
Is there any Logix that I could program into the PLC
that would prevent both motors from starting after
480v Power is restored? If this is possible could you
post examples?
I have a Allen Bradley 1769-L32E controller
I monitor the motor amps and vibration currently
In the plc. Could I use any of these?
I appreciate the help
I have two 480v motors that has remote start capability.
When the remote start button is pressed the 1st motor starts in 15 seconds.
When the remote start button is pressed on the 2nd motor it starts in 30 seconds. I do this so they are not both started at the same time.
The issue that I’m having is if we lose the 480v power or blow a fuse, but
keep 110v power in the PLC panel because of a ups keeps it up. Then what happens is since the start Command was enabled on both motors before the power was lost, then they will both start after the 480v power is restored.
Is there any Logix that I could program into the PLC
that would prevent both motors from starting after
480v Power is restored? If this is possible could you
post examples?
I have a Allen Bradley 1769-L32E controller
I monitor the motor amps and vibration currently
In the plc. Could I use any of these?
I appreciate the help
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