mohsin ahmad

problem was in ECT entry for time base. just change that entry and every thing is fine now.

i am using motor 1 2 and 4.. is there any problem with this configuration?

ok fine.. but this is not understandable ->#define THREAD_TIMEBASE_ADR Y:$00350B,0,24,S // I8010 11th entry of modified ECT ->#define THREAD_PROC_BITS_ADR Y:$00350B,20,4 // I8010 11th " " " " whatever you have sent me i have checked everything is fine and according to standard .so machine should stop stop and wait for trigger pulse while there is no pulse signal wire attached . one more thing according to manual I8010=$AF8018 for turbo. but in encoder.tab file it is $A78018 this is for pmac style .

turbo SRM page 239. i think it says address starts from X. Triggered Time Base ($9, $A, $B): A triggered time-base entry is like a regular untriggered time-base entry, except that it is easy to freeze the time base, then start it exactly on receipt of a trigger that captures the starting master position or time. In a triggered time-base entry, the first setup line (I-variable) contains a 9 A or B in the method digit (bits 20 – 23), depending on its present state. It contains the address of the source register in bits 0 – 18. The source register for triggered time base must be the starting (X) address for one of the machine interface channels of a Servo IC. The bit 19 mode switch must be set to 0 if a PMAC-style Servo IC (DSPGATE) is addressed; it must be set to 1 if a PMAC2-style Servo or MACRO IC (DSPGATE1 or DSPGATE2) is addressed. Note that setting bit 19 to 1 changes the second hex digit of the I-variable from 7 to F.

if you see this example it is using in ect $AF8018 for motor 4. but in my case it is $A7804. but i am using turbo pmac so it should be $AF8018. Setup On-line Command I8008=$AF8018 ; Triggered time base from PMAC2 channel 4 I8009=64 ; TBSF=16384/256 I7042=1 ; Servo IC 0 Channel 4 trigger on rising index I5193=@I8009 ; C.S.1 use I8009 result for time base M403->X:$07801B,0,24,S ; Channels’ captured position register Motion Program Segment DWELL 0 ; Stop any lookahead I8008=$9F8018 ; Freeze the time base P403=M403 ; Dummy read to ensure capture logic reset X10 ; Calculate first move PLC Program Segment IF (I8008=$9F8018) ; If frozen I8008=$BF8018 ; Then arm ENDIF and in OEM.H there are definitions for ECT #define RAPID_TIMEBASE2 $0010F3 ->#define THREAD_TIMEBASE_ADR Y:$00350B,0,24,S // I8010 11th entry of modified ECT #define THREAD_TIMEBASE $00350C // I8011 12th entry of modified ECT ->#define THREAD_PROC_BITS_ADR Y:$00350B,20,4 // I8010 11th " " " " #define THREAD_SCALE_ADR Y:$00350C,0,24,S // I8011 12th " " " " #define FPR_TIMEBASE $0010F4 // Open Usage Register #define FPR_TIMEBASE_ADR X:$0010F4,0,24,S #define SPND_TIMEBASE_ADR X:$00350A,0,24,S // I8009 10th entry of standard ECT #define FPR_SCALE_ADR Y:$00350A,0,24,S // I8009 10th entry of standard ECT // the above uses ENCODER 4 by default if you follow the arrow key . i think there is a problem in address.

steave i have checked it by removing the c channel pulse signal wire . still machine goes to threading mode . it means machine does not wait for c channel pulse. if it does not check c channel pulse then how it will make the healthy threads.

i have something in my mind to ask you about. its a very basic question. how clipper reads the logic. like i am using opkon rotary encoder. if channel pulse of encoder is high what does clipper reads it ? would it reads low or high? i mean 5volt output pulse

yes. i think so. some times it does not shift or off track. the shift is almost the same. some times shift is +ve and some times shift is in -ve.

i am facing problem while i am trying to make threads on my lathe. actually it goes off track or its path while in threading mode.i have tried g32 and g76. here is my configuration for spindle and z axis. z axis has no backlash , max following error 0.003mm. ixx28=0, 10000 counts/ revolution. for spindle encoder counts 4096/rev max spindle speed 1875rpm i7042=3 i've checked c channel pulse .its fine and updating. but problem is still there. threading goes off track about 0.1mm every round.

i am facing problem while i am trying to make threads on my lathe. actually it goes off track or its path while in threading mode.i have tried g32 and g76. here is my configuration for spindle and z axis. z axis has no backlash , max following error 0.003mm. ixx28=0, 10000 counts/ revolution. for spindle encoder counts 4096/rev max spindle speed 1875rpm i7042=3 i've checked c channel pulse .its fine and updating. but problem is still there. threading goes off track about 0.1mm every round.

do we have Mitsubishi SSCNET protocol compatibility with turbo clipper?