Instruction manual

15
INSTALLATION
2
2.6 Encoder
(1) Position detection (pulse encoder)
(2) Power supply
Choose a power supply for encoder according to the encoder used.
When an encoder is used under orientation control, encoder feedback control, and vector control, the power
supply is shared between the inverter and encoder.
CAUTION
⋅ When orientation control, encoder feedback control, vector control are used together, the encoder is shared
between these controls.
Use an encoder which has a pulse count of 1000 to 4096ppr (pulse per revolution).
⋅
The encoder should be coupled with the motor shaft or the spindle oriented with a speed ratio of 1 to 1 without any
mechanical looseness.
⋅ To ensure correct operation, the encoder must be set in the proper rotation direction and the A and B phases
connected correctly.
P
abcd
H
A
A
B
B
Z
Z
L
A/A signal 1000P/R to 4096P/R
B/B signal 1000P/R to 4096P/R
Z/Z signal 1P/R
A signal 1000P/R to 4096P/R
B signal 1000P/R to 4096P/R
Z signal 1P/R
Differential line driver Complimentary
Output pulse specifications
A
Position detector
Encoder
When rotation is clockwise
as viewed from the shaft
end (A) of the encoder.
a, b, c, d should be (1/4
1/8)P
A
B
Z
abcd
P