Background
The DB25 is the serial communication line that connects the controller to mill. Once connected to the electrical cabinet the signal travels down a ribbon cable to an IDC26 connector. This connects to the machine control board or MX3660.
The images below are general pin alignment and the following charts show detail the DB25 pin responsibilities.
PCNC1100 and PCNC770 Mill:
|
Pin # |
Description |
|
1 |
Speed/Enable - Measure 2.5Vdc (0-10kHz) |
|
2 |
X-Axis Direction - Measure 0 Vdc (Normal) and X+, 5 Vdc X- |
|
3 |
X+/- - Measure 5 Vdc (Normal), 4.75 Vdc (Pressed) |
|
4 |
Y-Axis Direction - Measure 0 Vdc (Normal) and Y+, 5 Vdc X- |
|
5 |
Y+/- - Measure 5 Vdc (Normal), 4.75 Vdc (Pressed) |
|
6 |
Z-Axis Direction - Measure 0 Vdc (Normal) and Z+, 5 Vdc X- |
|
7 |
Z+/- - Measure 5 Vdc (Normal), 4.75 Vdc (Pressed) |
|
8 |
A-Axis Direction - Measure 0 Vdc (Normal) and A+, 5 Vdc X- |
|
9 |
A+/- - Measure 5 Vdc (Normal), 4.75 Vdc (Pressed) |
|
10 |
X Limit 5 Vdc |
|
11 |
Y Limit 5 Vdc |
|
12 |
Z Limit 5 Vdc |
|
13 |
Accessory Input |
|
14 |
Coolant - Measure 5 Vdc |
|
15 |
Machine OK |
|
16 |
FWD 5 Vdc / REV 0 Vdc |
PCNC 440 Mill
|
Pin # |
Description |
|---|---|
|
1 |
Spindle Enable |
|
2 |
X Step |
|
3 |
X Direction |
|
4 |
Y Step |
|
5 |
Y Direction |
|
6 |
Z Step |
|
7 |
Z Direction |
|
8 |
A Step |
|
9 |
A Direction |
|
10 |
X Limit (Used for enclosure door switch) |
|
11 |
Y Limit |
|
12 |
Z Limit |
|
13 |
Probe In |
|
14 |
Spindle Speed |
|
15 |
Estop Reset |
|
16 |
Charge Pump |
|
17 |
Coolant |
15L Slant Pro
|
Pin # |
Description |
|
1 |
Speed/Enable - Measure 2.5Vdc (0-10kHz) |
|
2 |
X-Axis Direction - Measure 0 Vdc (Normal) and X+, 5 Vdc X- |
|
3 |
X+/- - Measure 5 Vdc (Normal), 4.75 Vdc (Pressed) |
|
4 |
Z-Axis Direction - Measure 0 Vdc (Normal) and Z+, 5 Vdc X- |
|
5 |
Z+/- - Measure 5 Vdc (Normal), 4.75 Vdc (Pressed) |
|
6 |
Spindle Dir |
|
7 |
ATC turret switch input |
|
8 |
ATC forward |
|
9 |
Collet closer |
|
10 |
Z Encoder |
|
11 |
A Encoder |
|
12 |
B Encoder |
|
13 |
Accessory Input |
|
14 |
Coolant - Measure 5 Vdc? |
|
15 |
Machine OK |
|
16 |
Frequency encoded data input (??FWD 5 Vdc / REV 0 Vdc?) |