
B-65245EN/02-8
3/11
EDIT
DATE DESIG.
DESCRIPTION
FANUC SERVO MOTOR β series I/O Link Option
Skip Function (Improvement of the specification) and
CAUTION to the parameters No.068, 141
TITLE
DRAW.NO. CUST.
SHEET
01
04.05.06
Newly added
(5) Skip signal HDI(JA35(15))
[Classification] Servo amplifier unit direct input signal
[Function] The work coordinate is recorded when this signal is input.
[Operation] Axis motion is interrupted by the rising edge (0=>1) or falling edge (1=>0) of
this signal when the skip command of the peripheral device control function is
executed. And the work coordinate is recorded when this signal is input. This
work coordinate value can be read as response data when the parameter
No.20 is set to “5”.
Also when the skip command of the direct command (“SKIP” bit of the
absolute or incremental positioning command is turned on) is executed, this
signal interrupts axis motion and terminates the executed command.
When automatic operation with 32 buffering block is executed, this signal
interrupts axis motion and proceeds to next block.
In case of direct command, the work coordinate is recorded when this signal is
input. The host controller can read the recorded data by the reading out direct
command (Read out the skip position).
Please add the following description after the explanation about *DEC in the subsection
2.3.15 Direct Input Signals (4) Deceleration signal for reference return of II HANDLING 2.
SIGNAL DESCRIPTION.
NOTE
1. If the axis moving arrives to the end point except the skip signal (HDI) input when the skip
function is operated, the kind of registered position can be selected by the paramete
No.17#2(SPCO) setting.(0:Register the before skip position. 1:Register the commanded end
position).
2. When the skip function of the Peripheral Equipment Control is finished, the position reading
must be done after confirming of the OPC4 signal is on.
3. When the skip function is operated, if the axis moving is stopped by the Emergency stop,
reset, alarm, the registered position is not refreshed.
4. Overtravel amount Qmax after skip signal has been turned to “1” is calculated by the following:
Qmax=Fm✕1/60✕1/1000✕ (17+Tc+Ts)
Qmax :Overtravel amount (mm)
Fm :Feedrate (user unit/min)
Tc :Time constant in CNC(msec)
Ts :Time constant in SERVO(msec)(1 / loop gain)