7-19
1
Before Using the Products
2
Preparat
on
3
Connect
on
4
Setup
5
Ad
ustment
6
When
n T
roub
e
7
Supp
ement
Composition of Absolute Data
Absolute data consists of singe-turn data which shows the absolute position per one
revolution and multi-turn data which counts the number of revolution of the motor after
clearing the encoder.
Single-turn data and multi-turn data are composed by using 15-character data (hexadeci-
mal binary code) which are received via RS232 or RS485.
Single-turn data
CW
CCW
–1 0
0 1
1 2
Multi-turn data
Motor rotational direction
8388607, 0,1,2,...
8388607, 0,1,2,..
8388607 0,1,
• Details of multi-turn data
65535
CW
0
CCW
Error
Absolute counter over
error protection
Normal
Error
Multi-turn data
0Bh
Axis address
D2h
03h
11h
Encoder status (L)
Setup value of Pr5.31 “Axis address”.
Encoder status (H)
Single-turn data (L)
Single-turn data (M)
Single-turn data (H)
Multi-turn data (L)
Multi-turn data (H)
00h
Error code
Checksum
Becomes to 0 when the communication is
carried out normally. If not 0, capture the
absolute data from the driver again
Received
absolute data
(15 characters)
Remarks
If the multi-turn data of the above fig. is between 32768 to 65535,
convert it to signed date after deducting 65536.
2. Absolute system
Transferring absolute data
Single-turn data Single-turn data (
H
)×10000 h+Single-turn data (M)×100 h+Single-turn data (L)
multi-turn data multi-turn data (
H
) ×100 h+multi-turn data (L)
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