FANUCA03B-0801-C141Digital Output Module OD64A, 64 Point DC, 0.125 A per Point, Series 11 / 15 CNC PLC

Product Description

What this part is

Fanuc A03B-0801-C141, module type OD64A, is a 64-point DC digital output module for the Fanuc Series 11 and Series 15 CNC PLC. It is the card the PMC ladder uses to switch field loads on and off: solenoid valve coils, relay and contactor coils, indicator lamps, brake and clamp solenoids. It is output only; there are no inputs on this module.

Order code breakdown

A03B: Fanuc’s own product scheme for CNC peripheral and I/O hardware, distinct from the GE Fanuc IC-prefix scheme. 0801: the Fanuc Series 11 / Series 15 CNC PLC I/O module range. C141: the specific module within that range, OD64A. OD64A is the module type name marked on the board, OD denoting output, digital, 64 the number of points and A the version.

Published specifications

Module type: OD64A. Function: digital output, output only. Points per module: 64. Output type: DC. Maximum load current: 0.125 A per point. Platform: Fanuc Series 11 and Series 15 CNC PLC. Manufactured in Japan by Fanuc.

Specifications in application

64 points is high density, which suits a machine needing a great many outputs in tight panel space, such as a well-equipped machining centre with a large tool changer, pallet system and extensive guarding interlocks. 0.125 A per point follows from that density, since 64 switching devices on one board makes each one small.

125 mA drives a typical small DC solenoid valve coil, an interposing relay coil, or an LED or small filament indicator. A large contactor coil, a heavy clamp solenoid or a motor brake is switched through an interposing relay driven from the module rather than directly.

The outputs are solid-state DC, so a small leakage current flows in the off state. On a high-impedance load that can hold the load faintly energised, and a bleeder resistor across the load is the usual remedy. Inductive DC loads take a flyback diode across the coil, the turn-off spike otherwise shortening the life of the output transistor one point at a time.

The card’s total current is lower than 64 times 0.125 A, and heavily loaded groups run hotter, so the per-common current limit governs simultaneous loading.

What is included

Module as pictured. This listing does not include the CNC rack, base unit or backplane; the interface or master module; a power supply, including the external DC supply the output loads require; field wiring, connectors or connector kits; a terminal board or breakout board; interposing relays, flyback diodes or bleeder resistors; fuses; solenoids or valves; PMC programming software or cables; or documentation. This is one module out of a populated rack.

Mounting data

The module occupies one rack slot in a Fanuc Series 11 or Series 15 PLC rack and is addressed by slot position, so the slot determines the addresses the PMC program writes to. The group and common arrangement is given in the module documentation. Inductive DC loads take flyback diodes of the correct polarity. The module is static-sensitive.

Interchange guidance

A03B-0801-C141 is the OD64A 64-point DC output module. Other output modules in the same range are different point counts and current ratings, so they are related sizes rather than equivalents: A03B-0801-C115 is the OD16C and A03B-0801-C117 is the OD16D, both 16-point cards. A03B-0801-C101 is the IF01A interface module and A03B-0801-C103 is the CIF0 interface module, different functions rather than output cards. A03B-0801-C055 in the same range is the DA03A analog output module. The A03B-0807 range is the later FANUC I/O Unit-MODEL A, a different platform, and its output modules (AOD32A1, AOD16C, AOR16G and so on) are not drop-in replacements for a Series 11/15 card. Also searched as A03B0801C141, A03B 0801 C141, OD64A, OD-64A, OD 64A, Fanuc digital output module, and Fanuc 15 output card. Sold as 1 piece.