User`s manual

10 - 1
10
Chapter 10 Absolute System
An absolute system can be configured on this module by using servo driver systems made by specific
manufacturers. In an absolute system, the present value is not cleared from memory even when the module
is powered OFF. Absolute values held on the driver side are automatically read by communications when
the module is powered backed ON or when the absolute present value read relay is turned ON. A system
combining an absolute system and closed loop control can also be configured. (When closed loop control is
used, see the item "Closed loop control.")
[1] Parameters and operation data relating to absolute system
Parameter 2 (special parameter)
Set as follows as block No.01. (must be set independently on each axis)
[2] Driver and motor that can configure an absolute system
The driver and motor in the following table can configure an absolute system on this module.
Driver Motor Manufacturer
GPPA1 Series
• Contact the manufacturer
regarding the official model
No. as the model No. differs
according to the number of
words.
GPPA1 Series dedicated
motor
• Contact the manufacturer
regarding the official model
No. as the model No. differs
according to the number of
words.
(Made by Wako Giken)
• Encoder is made by Nikon.
Operation data (assignment of special I/O data area)
I/O
Byte address of data memory
X-axis Y-axis Z-axis* A-axis*
Function
Bit
Input
(PLC←PS)
0001
0021 0041 0061
0222 0242 0262
2
7
Driver communications completed
•
Enabled only when absolute value control is enabled.
Read absolute present position [↑]
*Enabled only when absolute value control is enabled
*JW-14PS only
↑
↑
Completed
At start
Output
(PLC→PS)
0202
Address
Function
Byte Default
0020 1 00
Absolute value control
mode selection
0021 1
00
Absolute value control driver model selection 00: Model 1 (made by Wako Giken)
00: Absolute value control "Disabled"
01: Operation mode 1
The present value is rewritten at power ON or
when the absolute present value read relay turns
ON.
• "****" in B+**** indicates the numerical value of the address.
• "****" in N+**** indicates the numerical value of the address.