logo
Guangzhou Sande Electric Co.,Ltd.
Email Sales01@sande-elec.com TEL: 86--18620505228
Home > Products > CNC Circuit Board >
Used Fanuc A16B-2203-0070 PCB Board In Good Condition A16B22030070 A16B-22O3-OO7O
  • Used Fanuc A16B-2203-0070 PCB Board In Good Condition   A16B22030070  A16B-22O3-OO7O

Used Fanuc A16B-2203-0070 PCB Board In Good Condition A16B22030070 A16B-22O3-OO7O

Place of Origin JAPAN
Brand Name FANUC
Certification CE RoHS
Model Number A16B-2203-0070
Product Details
Condition:
NEW / USED
Item No.:
A16B-2203-0070
Origin:
JAPAN
Certificate:
CE
Highlight: 

used fanuc pcb board

,

used cnc circuit board

,

a16b fanuc pcb board

Payment & Shipping Terms
Minimum Order Quantity
1 pcs
Packaging Details
Original packing
Delivery Time
0-3 days
Payment Terms
T/T,PayPal,Western Union
Supply Ability
100 pcs/day
Product Description

A16B-2203-0070 | FANUC Series 21 / 210 TB Control 96/64 EO I/O PCB — CNC I/O and PSU Module / A16B-2203 Series


Series 21 and Series 210 TB — The CNC Platform

The A16B-2203-0070 serves FANUC's Series 21 and Series 210 CNC platforms in the "TB" (Terminal Block) control configuration:

Series 21: FANUC's compact high-performance CNC from the 20-series generation — positioned as the cost-optimised variant within the Series 20/21 family. The Series 21 serves machining centres, turning centres, and multi-axis machine tools requiring capable CNC control in a compact package.


Series 210: The Series 210 is an extended or specialist variant of the Series 21 platform — confirming that the A16B-2203-0070 serves both the standard and extended versions of this CNC family.

TB (Terminal Block) variant: The "TB" designation identifies the specific hardware configuration of the Series 21/210 system — confirming the control rack style and connector arrangement with which this I/O board is compatible.


Key Specifications

Parameter Value
Compatible CNC Series 21, Series 210 (TB)
Digital Inputs (DI) 96
Digital Outputs (DO) 64
Variant EO
Type I/O PCB / I/O PSU Module
Series A16B-2203

I/O PSU Module — Combined I/O and Power

The listing for A16B-2203-0070 describes it as an "I/O PSU Module" — indicating this board combines both functions. This integrated design is typical of later-generation FANUC I/O boards, where the board provides regulated 24V or 5V power distribution to the I/O section's output drivers alongside the input reading and output driving circuits.


Application Scenarios

Series 21 I/O PSU module fault: A FANUC Series 21 CNC machine tool develops I/O failures — outputs fail to activate or inputs read incorrectly. After verifying external wiring and machine-side power supply, the A16B-2203-0070 is identified as the fault. Replacement restores full 96/64 I/O operation.

Series 210 CNC control board maintenance: A production facility maintains its Series 210 CNC system. The A16B-2203-0070 is replaced as part of a planned I/O board renewal programme.


FAQ

Q1: How do I distinguish between the A16B-2203-0070 (EO) and A16B-2203-0073 (E1) I/O boards?

A16B-2203-0070 is the EO (E0) variant for Series 21/210 TB CNC systems. A16B-2203-0073 is the E1 variant for Series 0i (Zero-i)/F0 9-inch CRT systems. Both provide 96/64 I/O capacity but for different CNC platforms — they are not interchangeable. Confirm from the CNC model number and the installed board's part number label.


Q2: Is A16B-2203-0070 a board-only replacement, or does it include a separate power supply unit?

A16B-2203-0070 is described as an "I/O PSU Module" — the power supply regulation is integrated on the PCB. This is a single board that combines both functions. There is no separate external PSU component; the board is replaced as a complete unit.


Q3: What PMC alarms indicate an A16B-2203-0070 fault?

The PMC alarm display in the Series 21/210 CNC will show I/O communication errors or specific PMC system alarms when the I/O board fails. Multiple simultaneous I/O failures (both inputs and outputs from the same board) are more likely to indicate a board fault than isolated single-point wiring faults. Check the PMC diagnosis screen for the pattern of failed I/O points — if they all correspond to this board's connector assignments, the board is the likely cause.


Q4: Does replacing A16B-2203-0070 affect the PMC ladder programme stored in the CNC?

No. The PMC ladder programme is stored in the CNC's main memory (SRAM or FROM modules), not in the I/O board. Replacing A16B-2203-0070 does not affect the stored ladder. After fitting the replacement board, the PMC re-establishes communication with it during power-on initialisation. Verify all 96 inputs and 64 outputs function correctly through the PMC diagnosis screen before returning the machine to production.


Contact Us at Any Time

+86 18620505228
10/F,Jia Yue Building, Chebei Road,Tianhe district,Guangzhou ,China
Send your inquiry directly to us