Baldor M4000 Series DC Servo Motors
Overview
Brushed DC motors with tachometer and optional brake, possibly with encoder options as well.
Wiring
6-pin connector
| Pin | Wire Color | Function |
|---|---|---|
| A | red | motor C.C.W. (+) |
| B | black | motor C.C.W. (-) |
| C | red | tachometer C.C.W. (-) |
| D | black | tachometer C.C.W (+) |
| E | shield [black] | tachometer shield [brake] |
| F | [black] | [brake] |
https://stevenengineering.com/wp-content/uploads/2019/02/92DC_SERVO_MOTORS.pdf#page=27
9-pin connector
| Pin | Wire Color | Function |
|---|---|---|
| A | red | tachometer C.C.W. (-) |
| B | black | tachometer C.C.W. (+) |
| E | [black] | [brake] |
| F | [black] | [brake] |
| G | shield | tachometer shield |
| H | black | motor C.C.W. (-) |
| I | red | motor C.C.W. (+) |
https://stevenengineering.com/wp-content/uploads/2019/02/92DC_SERVO_MOTORS.pdf#page=27
11-pin connector
| Pin | Wire Color | Function |
|---|---|---|
| A | yellow & black | S2 & S3 |
| B | red | S1 |
| C | blue | S4 |
| E | red | motor C.C.W. (+) |
| F | black | motor C.C.W. (-) |
| G? | shield | tachometer shield |
| ... | ||
16-pin connector
| Pin | Function |
|---|---|
| A | channel A+ |
| B | channel A- |
| C | channel B- |
| D | channel B+ |
| E | channel Z+ |
| F | channel Z- |
| G | [brake] (or motor ground?) |
| H | +5VDC |
| I | common |
| J | [brake] (or NC?) |
| K | encoder shield |
| L | tachometer shield |
| M | tachometer C.C.W. (+) |
| N | motor C.C.W. (-) |
| O | tachometer C.C.W. (-) |
| P | motor C.C.W. (+) |
https://stevenengineering.com/wp-content/uploads/2019/02/92DC_SERVO_MOTORS.pdf#page=27
https://www.apexindustrialautomation.com/assets/globalparts/documents/Baldor_Reliance_MTE_4090_BLACE_Specification_Sheet.pdf#page=7 (gives a more detailed pinout)
Replacement Parts
6-pin connector
Motor jack: Amphenol MS3102E-14S-06P
Mating connector: Amphenol MS3106E-14S-06S
9-pin connector
Motor jack: Amphenol MS3102E-20-16P
Mating connector: MS3106E-20-16S
11-pin connector
Motor jack: ???
Mating connector: MS3106E-24-20S
16-pin connector
Motor jack: MS3102E-24-07P
Mating connector: MS3106E-24-07S (need to confirm)
Brushes
- overall length (with spring/copper braid straight): 1.67"
- carbon brush width:0.372"
- carbon brush thickness: 0.246"
- carbon brush length: 0.626"
- copper contact diameter: 0.438"
- copper contact width (flat to flat): 0.332"
- marked "E41" on the side of the carbon brush
A compatible replacement:
10-253721 | Helwig Carbon Products, Inc.