5 - 6
MELSEC-
A
5 DATA USED FOR POSITIONING CONTROL
5.1.3 Setting items for zero point return parameters
When carrying out "zero point return control", the "zero point return parameters" must
be set. The setting items for the "zero point return parameters" are shown below.
The "zero point return parameters" are set commonly for each axis.
Refer to "Chapter 8 ZERO POINT RETURN CONTROL" for details on the "zero point
return control", and to section "5.2 List of parameters" for details on each setting item.
Zero point return control
Zero point return parameters
Machine zero point return control
High-speed zero
point return control
Zero point return basic
parameters
Pr.45
Zero point return method
Near-point
dog method
Stopper stop
method 1)
Stopper stop
method 2)
Stopper stop
method 3)
Count
method 1)
Count
method 2)
Value set for
machine zero point
return control are
used.
Pr.46
Zero point return direction
Pr.47
Zero point address
Pr.48
Zero point return speed
Pr.49
Creep speed
Pr.50
Zero point return retry R R R – R R
Zero point return detailed
parameters
Pr.51
Zero point return dwell time R R R – R R
Pr.52
Setting for the movement amount after
near-point dog ON
– – – –
Pr.53
Zero point return acceleration time
selection
Pr.54
Zero point return deceleration time
selection
Pr.55
Zero point shift amount S S S S S S
Pr.56
Zero point return torque limit value –
– –
Pr.57
Speed designation during zero point
shift
S S S S S S
Pr.58
Dwell time during zero point return retry R R R – R R
: Always set
– : Setting not required (This is an irrelevant item, so the setting value will be ignored. If the value is the default value or
within the setting range, there is no problem.)
R : Set when using the section "12.2.1 Zero point return retry function". ("–" when not set.)
S : Set when using the section "12.2.2 Zero point shift function". ("–" when not set.)
Checking the zero point return parameters.
Pr.45 to Pr.58 are checked with the following timing.
(1) When the " remote station READY signal" changes from OFF to ON
(2) When the test mode using the AD75 software package