SnapAmp - Connector Pinouts

SnapAmp contains three connectors labeled JP1, JP6, and JP7.

JP6 - KMotion Communication & Logic Power

JP6 is a proprietary high-speed communication bus where command and status communication between the KMotion board and the SnapAmp Amplifier. Up to two SnapAmps may be attached to a single KMotion Board. The second of the two SnapAmps must have a configuration jumper installed into JP5.

This connection is required for proper operation of the SnapAmp and should be as short as possible.

16 pin ribbon cable connection between SnapAmp and KMotion.

Note: 4 - 40 x 1 3/8 inch standoffs are used between SnapAmp (top) and KMotion (bottom).

16 pin ribbon cable connection between Dual SnapAmps and KMotion

Notes:

4 - 40 x 1 3/8 inch standoffs are used between SnapAmp and KMotion

4 - 40 x 1 5/8 inch standoffs are used between SnapAmps

JP5 Jumper installed configures a SnapAmp as the 2nd SnapAmp.

When attaching SnapAmp to the KMotion first attach main ground plug as shown.

For Dual Snap Amp systems attach the 1:2 spade Y adapter before connecting the first SnapAmp

JP7 - I/O - General Purpose LVTTL - OPTO Isolated - Differential - Encoder Inputs

JP7 Is used for all Digital I/O. Fourteen General Purpose LVTTL I/O, Eight Differential Encoder Inputs, and Eight Optically Isolated Inputs.

Optically isolated input circuit. 5-12V may be applied. Current requirements at 5V is approximately 6ma and at 12V is approximately 20ma.

Pin | Name | Description
1 | GPIO0 | Gen Purpose LVTTL
2 | GPIO1 | Gen Purpose LVTTL
3 | GPIO2 | Gen Purpose LVTTL
4 | GPIO3 | Gen Purpose LVTTL
5 | GPIO4 | Gen Purpose LVTTL
6 | GPIO5 | Gen Purpose LVTTL
7 | GPIO6 | Gen Purpose LVTTL
8 | GPIO7 | Gen Purpose LVTTL
9 | GPIO8 | Gen Purpose LVTTL
10 | GPIO9 | Gen Purpose LVTTL
11 | GPIO10 | Gen Purpose LVTTL
12 | GPIO11 | Gen Purpose LVTTL
13 | GPIO12 | Gen Purpose LVTTL
14 | GPIO13 | Gen Purpose LVTTL

15 | CHA DIFF PLUS 0 | Differential Input + Encoder 0 Input Phase A
16 | CHA DIFF MINUS 0 | Differential Input - Encoder 0 Input Phase A
17 | CHB DIFF PLUS 0 | Differential Input + Encoder 0 Input Phase B
18 | CHB DIFF MINUS 0 | Differential Input - Encoder 0 Input Phase B
19 | CHA DIFF PLUS 1 | Differential Input + Encoder 1 Input Phase A
20 | CHA DIFF MINUS 1 | Differential Input - Encoder 1 Input Phase A
21 | CHB DIFF PLUS 1 | Differential Input + Encoder 1 Input Phase B
22 | CHB DIFF MINUS 1 | Differential Input - Encoder 1 Input Phase B
23 | CHA DIFF PLUS 2 | Differential Input + Encoder 2 Input Phase A
24 | CHA DIFF MINUS 2 | Differential Input - Encoder 2 Input Phase A
25 | CHB DIFF PLUS 2 | Differential Input + Encoder 2 Input Phase B
26 | CHB DIFF MINUS 2 | Differential Input - Encoder 2 Input Phase B
27 | CHA DIFF PLUS 3 | Differential Input + Encoder 3 Input Phase A
28 | CHA DIFF MINUS 3 | Differential Input - Encoder 3 Input Phase A
29 | CHB DIFF PLUS 3 | Differential Input + Encoder 3 Input Phase B
30 | CHB DIFF MINUS 3 | Differential Input - Encoder 3 Input Phase B

31 | OPTO NEG 0 | Opto Isolated Input 0 Negative Connection
32 | OPTO POS 0 | Opto Isolated Input 0 Positive Connection
33 | OPTO NEG 1 | Opto Isolated Input 1 Negative Connection
34 | OPTO POS 1 | Opto Isolated Input 1 Positive Connection
35 | OPTO NEG 2 | Opto Isolated Input 2 Negative Connection
36 | OPTO POS 2 | Opto Isolated Input 2 Positive Connection
37 | OPTO NEG 3 | Opto Isolated Input 3 Negative Connection
38 | OPTO POS 3 | Opto Isolated Input 3 Positive Connection
39 | OPTO NEG 4 | Opto Isolated Input 4 Negative Connection
40 | OPTO POS 4 | Opto Isolated Input 4 Positive Connection
41 | OPTO NEG 5 | Opto Isolated Input 5 Negative Connection
42 | OPTO POS 5 | Opto Isolated Input 5 Positive Connection
43 | OPTO NEG 6 | Opto Isolated Input 6 Negative Connection
44 | OPTO POS 6 | Opto Isolated Input 6 Positive Connection
45 | OPTO NEG 7 | Opto Isolated Input 7 Negative Connection
46 | OPTO POS 7 | Opto Isolated Input 7 Positive Connection

47 | VDD5 | + 5V Encoder Power Output
48 | VDD5 | + 5V Encoder Power Output
49 | GND | Digital Logic Ground
50 | GND | Digital Logic Ground

JP1 - Motor/Motor Supply (10-80V) Connector

| Motor type DC -Brush | Motor type - 3 Phase brushless | Motor type - Stepper
Axis 0 | Connect Motor across OUT0-OUT1 Specify PWM Channel 8 | Connect Phase A to OUT0 Connect Phase B to OUT1 Connect Phase C to OUT2 Leave OUT3 disconnected Specify PWM Channel 8 | Connect Coil A across OUT0-OUT1 Connect Coil B across OUT2-OUT3 Specify PWM Channels 8 and 9
Axis 1 | Connect Motor across OUT2-OUT3 Specify PWM Channel 9 |  |
Axis 2 | Connect Motor across OUT4-OUT5 Specify PWM Channel 10 | Connect Phase A to OUT4 Connect Phase B to OUT5 Connect Phase C to OUT6 Leave OUT7 disconnected Specify PWM Channel 10 | Connect Coil A across OUT4-OUT5 Connect Coil B across OUT6-OUT7 Specify PWM Channels 10 and 11
Axis 3 | Connect Motor across OUT6-OUT7 Specify PWM Channel 11 |  |