Fadal VMC20 CNC Mill
Overview
Vertical machining center donated to Make Nashville by Jeremy Todd of United Machine & Tool. It is an older machine built in 1993, and features brushed DC servos rather than modern 3-phase brushless servos, however the technology is still robust!
Specifications
| Model | 904-20 |
|---|---|
| Serial | 9103079 |
| Voltage | 230VAC |
| Phase | 3 |
| Frequency | 60Hz |
| Full Load Amps | 25A |
Replacement Parts
Servo Motors
DC Motors
TODO
Resolvers
Either a Advanced Micro Controls R11W-F10/7:
R11 Size 11 Brushless Resolvers
Advanced Micro Controls R11W-F10/7 Specification Sheet (Sheet # 940-2T440)
Or an API Harosyn 11BRW-300-F 1/6
Size 11/R11 Heavy Duty Brushless Resolvers | Dynapar
OEM parts:
Resolvers | Product Education | FadalCNC.com
PCB
Seems to be a Glentek GM4000-1058 board with the following over-temperature sensor:
Servo Motor Cables
TODO
Servo Amplifiers
Brushed DC servo amplifiers made by Glentek. The nameplate reads:
Glentek El Segundo, CA. Model: GA4568-4E-1 Serial: 3090 HF 3Ø
Documentation is still available:
GA4567EPC / GA4568EPB Operation and Service Manual
From Glentek's website:
Relay Board
The board has marked on it's silkscreen:
1100-1B Fadal PF-B94V-0
1100-1B RELAY DISTRIBUTION BOARD | FadalCNC.com
The board seems to have 7 solid state relays, two bypassed outputs (no isolation), and two mechanical relay outputs.
Online Resources
- Manufacturer's web site.
- Manufacturer documentation.
- Manuals. The "2016" is the closest match (the updated version of this machine).
- How to set up serial communications. It wants 7e1, xon/xoff flow control, and the file must start and end with a % sign.