Help for Mitsubishi Fx1s-30MR PLC with stepper motor

loverttsl · Jan 16, 2009

i have a Mitsubishi Fx1s-30MR PLC, 2 stepper motor and stepper motor drive.
My objective is to use above described gadget i have to design a xy-table/machine.
But i am totally newbie in PLC programming and have no idea on how to do it can anyone here teach me or guide me step by step??
By the way, i am using GX Developer 7.0.

Thanks in advance.

loverttsl · Jan 18, 2009

no people can help me??

panic mode · Jan 19, 2009

your question is too general. to get proper answer you should ask specific questions. based on what you have provided so far one can suggest:
1. wiring drive, motors and plc
2. writing program
3. downloading program to plc
4. debugging
5. customizing to your needs

You need to use high speed outputs from PLC to be able to use high speed instructions (PLSY, PLSR or whatever). those should be available on FX models with transistor outputs (MT in the part number instead of MR which is what you have). note that there are also restrictions to use of those instructions (only one instance can run at a time if i remember correctly).

Sergei Troizky · Jan 19, 2009

The MR PLC model has relay outputs hence cannot be used for positioning pulsetrain generation.

loverttsl · Jan 19, 2009

panic mode said:
your question is too general. to get proper answer you should ask specific questions. based on what you have provided so far one can suggest:
1. wiring drive, motors and plc
2. writing program
3. downloading program to plc
4. debugging
5. customizing to your needs

You need to use high speed outputs from PLC to be able to use high speed instructions (PLSY, PLSR or whatever). those should be available on FX models with transistor outputs (MT in the part number instead of MR which is what you have). note that there are also restrictions to use of those instructions (only one instance can run at a time if i remember correctly).

so.....what you mean is i need to change my PLC to a FX1S-XXMT series instead of MR in order to use the positioning instruction?

zai_jnr · Jan 19, 2009

that rite.. u need to use transistor type, not relay type..this is because positioning function need to get fast trigger switching device.. this function have in transistor type not in relay type...

panic mode · Jan 20, 2009

that is correct, regardless what plc you use, pulse train is a (relatively) high speed signal (definitely too fast for relays) and you must use transistor outputs (noted by MT in the part number, such as FXxxxxxxMTxx).

next thing to know is how many I/O (and how many high speed I/O) you need for the job. FX1S has fixed I/O (no option to expand). If I recall 6 inputs and four outputs can be used as high speed I/O. Unless this is really small job and you know you know it will do the job, I'd consider FX2N or FX3N series controller.

Help for Mitsubishi Fx1s-30MR PLC with stepper motor

loverttsl

Member

loverttsl

Member

panic mode

Member

Sergei Troizky

Member

loverttsl

Member

zai_jnr

Member

panic mode

Member

Similar Topics