STEP iAStar Series - Page 23

STEP iAStar Frequency Inverter For Elevator Door Machine manual Instructions
15
3.5.1.2 Wiring specifications of encoder
There are three kinds of encoder input signals for door inverter——encoder of
Push/pull, OCT or differential type. Please choose the encoder below 1024 pulse and
using 24V power supply.
1） Push/pull or OCT output encoder wiring
VCC
GND
PA
PB
Push/Pull output encoder
iAStar inverter for door machine
Using shielded wires
Shielded wire connected to
19
20
21
22 +24V
+24VGND
PA
PB
OCT encoder
GND with close terminal
Fig 3-9 diagram of Push/pull or OCT output encoder wiring for Type A1
On the wiring of push/pull or OCT output encoder, the power of encoder should be
jointed at +24V terminal, the encoder ground at +24V GND terminal, PA and PB of
encoder at PA and PB of inverter, and the close terminal of shielded wire at GND
terminal of inverter. 。
2） differential type encoder wiring
15
VCC
16
GND
17
18
20
19
Differential encoder
Using shielded wires
Shielded wire connected to GND with close terminal
+5V
GND
PA+
PB+
PA-
PB-
A+
B+
A-
B-
iAStar inverter for door machine
Fig 3-10 diagram of differential type encoder wiring for Type A1