Just received a new All/One and found two inputs labelled both on the cover plate and the wiring diagram, zero speed, input 12 and door closed, input 8. This is on serial number A900981. Is zero speed for use with tool changer? Is door closed input used to pause or estop an operation? This is a new install on a Milltronics Part 4 knee.
Any help would be greatly appreciated, Thanks
Hillbilly Engineering, LLc
All in One input changes??
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Hillbilly Eng
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- Joined: Wed Mar 10, 2021 2:25 am
- Acorn CNC Controller: No
- Allin1DC CNC Controller: Yes
- Oak CNC controller: No
- CNC Control System Serial Number: A900981
- DC3IOB: No
- CNC12: Yes
- CNC11: No
- CPU10 or CPU7: No
Re: All in One input changes??
Inputs 7 through 16 are general purpose, with no pre-defined functions dictated by the hardware. Their functions are determined purely by the PLC program: i.e. by software logic. The labels printed on the cover plate are just suggestions.
Some input definitions are fairly universal among all the different PLC programs: INP9 for the low-lube signal; INP10 for the VFD fault signal; and INP11 for the emergency stop button.
Others are less frequently used. Spindle low-range on INP13 (or sometimes on INP12) is supported by nearly all PLC programs, but is only used on machines that actually have two spindle ranges.
Spindle zero-speed is used with tool changers, power drawbars, automatic gear shifters, and other devices that need to know whether the spindle is stopped or turning. However, a basic default PLC program does not necessarily support any of those things.
Similarly, a door-closed input would be used if you wanted door interlock logic in your PLC program, but most PLC programs do not have door interlock logic.
In short: if your machine does not have any devices that the PLC needs to control, that depend on knowing when the spindle is stopped, then you do not need to connect anything to the "zero speed" input. If you machine does not have an enclosure with a door switch, then you do not need to connect anything to the "door closed" input.
If you need some additional inputs for other purposes, you are free to rename those inputs and wire whatever devices you need to them.
In the unlikely event that the base PLC program you choose to start with has any references to ZeroSpeed_I or DoorClosed_I, then you can delete them when you go to add your custom features.
Some input definitions are fairly universal among all the different PLC programs: INP9 for the low-lube signal; INP10 for the VFD fault signal; and INP11 for the emergency stop button.
Others are less frequently used. Spindle low-range on INP13 (or sometimes on INP12) is supported by nearly all PLC programs, but is only used on machines that actually have two spindle ranges.
Spindle zero-speed is used with tool changers, power drawbars, automatic gear shifters, and other devices that need to know whether the spindle is stopped or turning. However, a basic default PLC program does not necessarily support any of those things.
Similarly, a door-closed input would be used if you wanted door interlock logic in your PLC program, but most PLC programs do not have door interlock logic.
In short: if your machine does not have any devices that the PLC needs to control, that depend on knowing when the spindle is stopped, then you do not need to connect anything to the "zero speed" input. If you machine does not have an enclosure with a door switch, then you do not need to connect anything to the "door closed" input.
If you need some additional inputs for other purposes, you are free to rename those inputs and wire whatever devices you need to them.
In the unlikely event that the base PLC program you choose to start with has any references to ZeroSpeed_I or DoorClosed_I, then you can delete them when you go to add your custom features.