I. Relationship between ESR01B and ESR01

ESR01B = upgraded / revised model of ESR01 (Rev.B), fully compatible in functions and pins, and can be directly replaced.

ESR01: early version (Rev.A), common suffixes - 21/-23;

ESR01B: later improved version (Rev.B), common suffix - 31. Circuit optimized, stronger anti-interference, better stability.

II. Core functions

Full acquisition of machine tool I/O signals

Connect operation panel, limit / proximity switches, solenoid valves, tool magazine, cooling / lubrication system, 64 digital input / output points.

Main shaft and servo signal conversion

Process main shaft encoder signals, servo enable, alarm, direction / gear position signals, compatible with main shaft frequency conversion / servo drive.

Strong isolation and signal relay

Photoelectric isolation + surge suppression, 24VDC system, suitable for workshop strong interference environment, protecting CNC motherboard.

Auxiliary function control

Manage M code (cooling, clamping, tool magazine rotation), S code (main shaft speed), T code (tool number) signal interaction.

III. Specification parameters

Model version: JANCD-ESR01B-31 (Rev.B)

I/O points: 32 input / 32 output (64 points), fully photoelectric isolation

Input voltage: DC24V ±10%, NPN/PNP compatible

Output type: transistor output, maximum 0.5A per point, capable of driving small relays

Interface: 2×50-pin flat cable socket (connecting to the machine terminal block)

Operating temperature: 0℃ ~ +55℃

Weight: approximately 1.38kg

Installation: standard slot of CNC cabinet, compatible with CPU board (JANCD-CP01) and power board (JANCD-PWR)

IV. Differences from robot board cards

ESR01B: CNC machine-specific I/O board, manages machine switch quantities, main shaft / auxiliary signals;

ERF01: robot XRC bus communication board, manages the internal M-NET bus of the cabinet, no large I/O;

EIO01/05/06: robot XRC digital I/O board (32 input / 32 output), managed by ERF01.

V. Common faults and replacement

Typical faults: I/O points no response, main shaft signal loss, panel buttons malfunction, alarm "EXTERNAL I/O ERROR";

Replacement suggestion: ESR01B can directly replace ESR01 (-21/-23), no need to rewire, parameter compatibility.