Input / Output Signal - Mitsubishi Electric PLK-J-CU-20 Technical Manual

1. Input signal setting table
Code
FSP Clamp all step ON signal
FSM Clamp all step OFF signal
IFR All clamp output clear signal
Pneumatic two-step clamp
A2F
switch input signal
IF1 to IF4 Clamp input signal 1 to 4
Clamp output prohibition
F1C to F4C
signal 1 to 4
OFC All clamp output cancel signal When OFC input is on, OF1 to OF4 outputs are prohibited.
WC Wiper output cancel signal
TC Trimmer output cancel signal
Thread trimming protection
S6
signal
Home positioning prohibition
HPC
signal
Upper thread sensor input
THS
signal
ARS Less pressure detection signal
IO0 to IOF General purpose input 0 to F
NO No operation signal
SRT Start signal
HP Home position returning signal
PF Presser foot signal
JGP JOG plus signal
JGM JOG minus signal
STP Halt signal
Fixed angle (rotation/reverse
BC
rotation) signal

[9] Input / Output signal

Function
Whenever FSP input is on, clamp output [1],[2],[3],[4] turned on one by one.
However, when [Program mode > Clamp output > number of effective clamp
(FN)] is set to 1, FSP input is ineffective.
Whenever FSM input is on, clamp output [4],[3],[2],[1] turned off one by one.
However, when [Program mode > Clamp output > number of effective clamp
(FN)] is set to 1, FSM input is ineffective.
If IFR signal is on, all clamp outputs are turned off.
Whenever A2F input is on, following operation (1), (2), (3) is repeated.
This signal is effective when [Program mode > Setting for Pneumatic two-step
clamp (AF2)] is on.
(1) When A2F input is on first time, AFL output is turned on.
(2) When A2F input is on second time, AFH output is turned on.
(3) When A2F input is on third time, AFE output is turned on.
When IF1 input is on, OF1 output is turned on.
When IF1 input is on again, OF1 output is turned off.
(same from IF2 to IF4）
When F1C input is on, OF1 output is prohibited.
（same from F2C to F4C）
When WC input is on, W output is prohibited.
When TC input is on, Thread trimmer sequence output T, L and W is
prohibited.
When S6 input is on while machine is driving, the machine is stopped and
when S6 input is off, the machine start driving again.
When S6 input is on while thread trimming operation, machine is stopped
after trimming.
When HPC is ON, home returning operation by the home positioning key or
HP signal is prohibited.
When setting of [Program mode > Needle thread breaking sensor ON/OFF] is
on, the signal can be used for thread breakage detection input.
When ARS input is on, all operation is interrupted, and error [E-3108] is
displayed. (Returns by power supply re-turning on)
When IO0 input is on, OT0 output is turned on at the same time.
(same from IO1 to IOF)
Anything does not operate, if NO input is turned on.
When SRT input is on, sewing operation is started. However, when clamp
output is turned off, this signal is invalid.
When HP input is on, home position returning operation is executed.
However, please note there is a timing that becomes invalid, for example
while machine is running.
When PF input is on, The presser foot will return to home position.
When PF input is on again, presser foot goes to down position.
When JGP input is on, XY table is moved in positive direction according to the
pattern.
When JGM input is on, XY table is moved in negative direction according to
the pattern.
When STP input is on, machine is stopped.
To confirm the needle thrust position, the needle is stopped just before the
sewing material. Whenever BC input is ON, operation of [rotation] -> [reverse
rotation] -> [rotation] is repeated. When the start switch is on afterwards,
following sewing operation is started. However, if the following data is non
stitch feed, the message [M-020] is appeared, in this case please move the
needle to up position and re-turning on the start switch.
Specifications
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