3. SCON-CA
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(2) I/O Signal Allocation for each Axis
The I/O signals of each axis consist of one input word (16 words = 32 bytes) and one output word in the I/O
areas.
z Control signals 1 and 2 and status signals are ON/OFF bit signals.
z The target position and current position are expressed using 2-word (32 bits) binary data. The figures
from –999999 to +999999 (Unit: 0.01mm) can be set in PLC. However, set the position data within the
soft stroke range (0 to effective stroke length) for the actuator concerned.
z Set the positioning band. The positioning band is expressed using 2-word (32 bits) binary data. The
figures from 1 to +999999 (Unit: 0.01mm) can be set in PLC.
z The specified speed is expressed using 2-word (32 bits) binary data. The figures from 0 to +999999
(Unit: 0.01mm/sec) can be set in PLC. Set the value that does not exceed the max. speed value
for the
actuator concerned.
z The Acceleration/Deceleration is expressed using 1-word (16 bits) binary data. The figures from 1 to 300
(Unit: 0.01G) can be set in PLC. However, set the value that does not exceed the max.
acceleration/deceleration value for the actuator in question.
z The pressing current-limiting value is expressed using 1-word (16 bits) binary data. The figures from 0
(0%) to 510 (200%) can be set in PLC. However, set the value within the settable range for the pressing
current-limiting value (Refer to the Catalog or Operation Manual for the actuator) for the actuator
concerned.
Set Value
Pressing current-limiting value
z Set the load current threshold. The load current threshold is expressed using 1-word (16 bits) binary
data. The figures from 0 (0%) to 510 (200%) can be set in PLC. (Refer to the graph of pressing
current-limiting value (above graph).)
z Zone Boundary “+” and Zone Boundary “–“ are expressed using 2-word (32 bits) binary data. The figures
from -999999 to +999999 can be set in PLC. However make sure to set the smaller value for the Zone
Boundary “-“ than that for the Zone Boundary “+”.
z The command current is expressed using 2-word (32 bits) binary data (Unit: 1mA).
z The current speed is expressed using 2-word (32 bits) binary data (Unit: 0.01mm/sec).
z The alarm code is expressed using 1-word (16 bits) binary data.
z The force feedback data is 2-word (32-bit) binary data (unit: 0.01 N).
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