View source for 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 ===

{| class="wikitable"
! 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 ===

{| class="wikitable"
! 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 ===

{| class="wikitable"
! Pin
! Wire Color
! Function
|-
| A
| yellow &amp; black
| S2 &amp; S3
|-
| B
| red
| S1
|-
| C
| blue
| S4
|-
| E
| red
| motor C.C.W. (+)
|-
| F
| black
| motor C.C.W. (-)
|-
| G?
| shield
| tachometer shield
|-
| colspan="3" | ...
|}

=== 16-pin connector ===

{| class="wikitable
! 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

[https://www.digikey.com/en/products/detail/amphenol-industrial-operations/MS3102E14S-6P/378616 Amphenol MS3102E14S-6P]

Mating connector: Amphenol MS3106E-14S-06S

[https://www.digikey.com/en/products/detail/amphenol-industrial-operations/MS3106A-14S-6S/378640 Amphenol MS3106A-14S-6S]

=== 9-pin connector ===

Motor jack: Amphenol MS3102E-20-16P

[https://www.digikey.com/en/products/detail/amphenol-industrial-operations/MS3102E20-16P/2127871 Amphenol MS3102E20-16P]

Mating connector: MS3106E-20-16S

[https://www.digikey.com/en/products/detail/amphenol-industrial-operations/MS3106E20-16S/2128855 Amphenol MS3106E20-16S]

=== 11-pin connector ===

Motor jack: ???

Mating connector: MS3106E-24-20S

=== 16-pin connector ===

Motor jack: MS3102E-24-07P

[https://www.digikey.com/en/products/detail/amphenol-industrial-operations/MS3102E24-7P/2127984 Amphenol MS3102E24-7P]

Mating connector: MS3106E-24-07S (need to confirm)

[https://www.digikey.com/en/products/detail/amphenol-industrial-operations/MS3106E24-7S/4713132 Amphenol MS3106E24-7S]

=== 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:

[https://www.helwigcarbon.com/shop/10-253721/ 10-253721 | Helwig Carbon Products, Inc.]

== Online Resources ==

[https://stevenengineering.com/Tech_Support/PDFs/92DC_SERVO_MOTORS.pdf Baldor DC Servo Motors & Drives Catalog]