User Manual

PD-1021 Hardware Manual (Rev. 1.00 / 2012-JUN-20) 10
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3.3.1 Power, Communication and I/O Connector
An 8-pin JST PH-series 2mm pitch single row connector is used for power supply, RS485 serial
communication and additional multi-purpose inputs and outputs.
Pin
Label
Direction
Description
1
GND
Power (GND)
GND
2
VDD
Power (Supply)
VDD (+9V…+28V)
3
RS485+
Bidirectional
RS485 interface, diff. signal (non-inverting)
4
RS485-
Bidirectional
RS485 interface, diff. signal (inverting)
5
IN_0
Input
Digital input (+24V compatible)
Alternate function 1: step input
Alternate function 2: left stop switch
6
IN_1
Input
Digital input (+24V compatible)
Alternate function 1: direction input
Alternate function 2: right stop switch
7
OUT_0 / IN_2
Output / Input
Open drain output with freewheeling diode
(max. 100mA)
Alternate function 1:
digital input (+24V compatible)
Alternate function 2:home switch
8
OUT_1 / IN_3
Output / Input
Open drain output with freewheeling diode
(max. 100mA)
Alternate function 1: digital input
(+24V compatible)
Alternate function 2: analog input
Table 3.3 Power, communication and I/O connector
3.3.2 Motor Connector
The motor connector is used for connecting the four motor wires to the electronics.
Pin
Label
Direction
Description
1
OB2
Output
Pin 2 of motor coil B
2
OB1
Output
Pin 1 of motor coil B
3
OA2
Output
Pin 2 of motor coil A
4
OA1
Output
Pin 1 of motor coil A
Table 3.4 Motor connector
PD-1021
QSH2818 Motor
Motor connector pin
Cable colour
Coil
Description
1
Blue
B-
Motor coil B pin 2
2
Red
B
Motor coil B pin 1
3
Green
A-
Motor coil A pin 2
4
Black
A
Motor coil A pin 1
M
black
green
red
blue
A
B