13 - 10
Chapter 13 Control Sub Functions
(2) HP shift operation at the "[Pr.47] Creep speed"
(When "[Pr.56] Speed designation during HP shift" is 1)
When the " Pr. 53 HP
shift amount" is negative
When the " Pr. 53 HP
shift amount" is positive
Pr. 44 HPR
direction
HP
Machine HPR start
Proximity dog
Zero signal
HP
Pr. 47 Creep
speed
V
Fig. 13.7 HP shift operation at the creep speed
[4] Precautions during control
(1) The following data are set after the HP shift amount is complete.
HPR complete flag ([Md.31] Status: b4)
[Md.20] Feed current value
[Md.21] Feed machine value
[Md.26] Axis operation status
HPR request flag ([Md.31] Status: b3) is reset after completion of the HP
shift.
(2) "[Pr.53] HP shift amount" is not added to "[Md.34] Movement amount after
proximity dog ON". The movement amount immediately before the HP shift
operation, considering proximity dog ON as "0", is stored.
[5] Setting the HP shift function
To use the "HP shift function", set the required details in the parameters shown in
the following table, and write them to the Simple Motion module.
When the parameters are set, the HP shift function will be added to the machine
HPR control. The set details are validated at the rising edge (OFF
ON) of the
PLC READY signal [Y0].
Setting item
Setting
value
Setting details
Factory-set
initial value
[Pr.53]
HP shift amount
Set the shift amount during the HP shift. 0
[Pr.56]
Speed
designation
during HP shift
Select the speed during the HP shift
0: [Pr.46] HPR speed
1: [Pr.47] Creep speed
0
: Refer to Section 5.2 "List of parameters" for setting details.
REMARK
Parameters are set for each axis.
It is recommended that the parameters be set whenever possible with GX Works2.
Execution by sequence program uses many sequence programs and devices. The
execution becomes complicated, and the scan times will increase.
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