3.1.2
Speed instruction
SPEED
Relevant elements:
Speed designation (1) K10
to
K100,OOO or KO (motor system or composite system)
(2) K1
to
K153,OOO or KO (machine system)
(3) X70
to
X77
The setting
of
(1)
applies
to
the motor system and the composi
(4) X1
to
X654,321
Execution time:
Instantaneous progressing type
(1),(2)
1
msec or less
(3) 1 programmable controller operation cycle or less
(4)
DSW
read time See page 136.
tesystem. Setting of
(2)
applies
to
the machine system.
(When the relevant element is
K)
This instruction is programmed within each block when the motor must be operated at a speed less
than the max. motor speed set by parameter number
4.
When SPD
K1,OOO
is designated with the unit parameter number
0
to
1
(motor system), for instance,
the speed will be
1,000
PLS/sec.
If
the SPD instruction
is
not programmed, the motor will be operated at the max. speed as set
by
parameter number
4.
The SPD instruction
is
only effective when it is less than the max. speed parameter
I
Parameter
.
t
SPD instruction
number
4
or
I
.
From parameter number
4
instruction execution
Max. speed
setting
register
Parameter number
6
,
The
acceleration/deceleration
times are determined by parameter num-
ber
8.
If
the movement distance is
too
short, the motor may decelerate without
reaching max. speed.
The contents of max. speed setting register MSR will be changed each
time the SPD instruction or
BLK
instruction is executed, and all opera-
tions are performed in accordance with these values.
The motor speed will not become lower than the bias speed
of
parameter number
6.
The motor speed will not become higher
parameter number 4.
Page 134 gives details about the applicable
than the max. speed of
versions
of
the F2-30TP.
(When the relevant element
is
X)
X70 to X77:
Setting of BFM#25 to
#lo
written from a programmable controller designates the
speed. For example, X70 is designated by the setting of BFM#ll and
#lo.
X1 to
X654,321:
Speed is designated by digital switches. The connecting method
is
as shown on
the previous page. By designating digit numbers, setting values
of
such designated
digital switches can be used. (Digit designations and scaling are done like the EXT
instruction given on the next page.)
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32
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