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IAI America MSEP User Manual

Page 121

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3.4 Fieldbus

Type
Address Map

113

(2) Input and Output Signal Assignment for each Axis

The I/O signals for each axis consists of 8-word for each I/O bit register.

Ɣ The control signals and status signals are ON/OFF signals in units of bit.

Ɣ For the target position and current position, 2-word (32-bit) binary data is available and values

from -999999 to +999999 (unit: 0.01mm) can be used. Negative numbers are to be dealt with

two’s complement.

Caution:

• Set the position data in the range of the soft stroke (0 to effective stroke length) of the

actuator.

Ɣ Set the positioning width. The positioning width is expressed using 2-word (32 bits) binary

data. The figures from 0 to +999999 (Unit: 0.01mm) can be set in PLC.

Ɣ The command speed is expressed using 1-word (16 bits) binary data. The figures from 1 to

+65535 (Unit: 1.0mm/sec or 0.1mm/sec) can be set in PLC. A change of the unit is to be

conducted on Gateway Parameter Setting Tool.

Ɣ 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.

Ɣ The pressing current limit value is expressed using 1-word (16 bits) binary data. The figures

from 0 to 100% (0 to FFH) can be set in PLC.





Caution:

Have the setting with values available in the range of for speed, acceleration/deceleration and

pressing current of the actuator. (Refer to the catalog or instruction manual of the actuator.)

Otherwise, it may cause an abnormal condition of the servo or a malfunction of the actuator

such as the alarm codes 0A3 “Position Command Information Data Error”, 0C0 “Excess

Actual Speed”, 0C8 “Overcurrent”, 0CA “Overheated” or 0E0 “Overloaded”.

Ɣ The command current is expressed using 2-word (32 bits) binary data (Unit: 1mA).

Ɣ The current speed is expressed using 1-word (32 bits) binary data (Unit: 1.0mm/sec or

0.1mm/sec).

The unit is the one set in the command speed. A positive number is output when the

revolution of the driving motor is in CCW, while a negative number when CW. Negative

numbers are output with two’s complement.

For Slider and Rod Types of actuators, a negative number is output when a movement is

made towards the motor side, while a positive number when against the motor side. For

Reversed Motor Type, it is the other way around. For Gripper Type, a positive number is

output when fingers are closed. For Rotary Type, a positive number is output when rotating

clockwise.

Ɣ The alarm code is expressed using 1-word (16 bits) binary data.

Set Value 0

127

H

FF

H

(50 in decimal system) (255 in decimal system)

Pressing current Limit 0%

50%

100%