Hitachi SJ7002 Series Instruction Manual page 201

Multi-stage
Three Multi-stage Position Select inputs are binary-encoded to select one of eight settings,
P060 to P067. Input [CP1] is the LSB; [CP3] is the MSB. If no position select inputs are
Position Select
assigned, P060 becomes the default position setting.
1, 2, and 3
66=[CP1]
Opt. Code
67=[CP2]
and
Symbol
68=[CP3]
Valid for
[1] to [8]
Inputs
Required
P060 to
P067, C169
Settings
Default
Requires
config.
terminal
The three multi-stage position select inputs [CF1, [CF2], and [CF3] are binary-encoded. When
more than one input changes state to select a position, it is possible that skewing of input
transitions would briefly select undesired intermediate positions. To avoid this problem, a
determination time feature is available. Parameter C169 sets a delay time that applies uniformly
to all three inputs. It operates according to the following process:
• The determination timer is initialized upon an input transition. The transition is not yet
• The timer is initialized again if an input transitions before the timer expires.
• When the timer expires, the state of all three position select inputs is transferred to the output
Note that excessively long determination time settings will reduce the overall performance of
the position select inputs.
Function
Multi-Position
Code
P060 Position setting 0
P061 Position setting 1
P062 Position setting 2
P063 Position setting 3
P064 Position setting 4
P065 Position setting 5
P066 Position setting 6
P067 Position setting 7
transferred to the output.
(to generate a new position selection, P060 to P067).
C169 Determination time = 0
7
Position
selection
1
0
[CP1]
[CP2]
[CP3]
Input Function
[CF3] [CF2] [CF1]
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
C169 Determination time > 0
7
3
4–39
SJ700 Inverter
2
5
4
0
t