User guide

➇ Hardware Reference 103
Encoder Connectors (For Use With Incremental Encoders Only)
The following table lists the pin outs for the 6250's two 9-pin screw terminal ENCODER
connectors. The internal encoder input circuit is shown below.
Pin In/Out Name Compumotor E Series
Encoder Cable Colors
Description Schematic
9
8
7
6
5
4
3
2
1
OUT
IN
IN
IN
IN
IN
IN
-----
-----
+5V
A Ch. +
A Ch. -
B Ch. +
B Ch. -
Z Ch. +
Z Ch. -
Ground
Shield
Red
Brown
Brown/White
Green
Green/White
Orange
Orange/White
Black
Shield
+5VDC output to power the encoder
A+ channel quadrature signal
A- channel quadrature signal
B+ channel quadrature signal
B- channel quadrature signal
Z+ channel quadrature signal
Z- channel quadrature signal
Isolated logic ground
Internally connected to chassis ground (earth)
Internal Encoder Input Circuit
+5VDC
22 KΩ
9-Pin Screw Terminal
ENCODER Connector
+1.8VDC
A+, B+, Z+
A-, B-, Z-
22 KΩ
+
-
Programmable I/O Connectors
The following table lists the pin outs for the 6250's two 50-pin programmable I/O connectors.
The internal input and output circuits are illustrated below.
Pin Output Connector Input Connector
49 +5VDC +5VDC
47 Output #1 (LSB) Input #1 (LSB)
45 Output #2 Input #2
43 Output #3 Input #3
41 Output #4 Input #4
39 Output #5 Input #5
37 Output #6 Input #6
35 Output #7 Input #7
33 Output #8 Input #8
31 Output #9 Input #9
29 Output #10 Input #10
27 Output #11 Input #11
25 Output #12 Input #12
23 Output #13 Input #13
21 Output #14 Input #14
19 Output #15 Input #15
17 Output #16 Input #16
15 Output #17 Input #17
13 Output #18 Input #18
11 Output #19 Input #19
09 Output #20 Input #20
07 Output #21 Input #21
05 Output #22 Input #22
03 Output #23 Input #23
01 Output #24 (MSB) Input #24 (MSB)
All even-numbered pins are connected to logic ground.
On the AUX connector,
you can source current
by connecting IN-P to
+5V; or you can sink
current by connecting
IN-P to G ND.
Internal Programmable Input Circuit
ISO GND
74HCTxx47 KΩ
Input
Connection
Ground
Connection
Internal Programmable Output Circuit
7406
10 KΩ
OUT-P
(Output Pull-up)
Output
Connection
Driving Inductive Loads
7406
10 KΩ
OUT-P
Output
Connection
7406
ISO GND
V+
Use an external diode when driving inductive loads.
Connect the diode in parallel to the inductive load,
attaching the anode to the 6250 output and the
cathode to the supply voltage of the inductive load.
6.8 KΩ
+5VDC
GND
IN-P
+5V
GND
Factory
Default