I. Overview

JANCD-FC226 is a servo and spindle signal interface board for the Anson I80 system, responsible for signal conversion, command transmission and feedback acquisition between CNC and servo amplifiers, spindle units, etc. It is a key interface card in the system's motion control chain and does not directly drive the motor, but ensures reliable interaction of control signals.

Related models: JANCD-FC225 (simplified version), JANCD-FC222 (spindle-specific)

Assembly backplane: JANCD-FC006 (I80 standard backplane)

II. Specifications and Parameters

Material number: DF9200710-A0

Board size: 267 mm × 152 mm (I80 universal size)

Power supply: 5VDC ±5%, approximately 1.8A (backplane power supply)

Servo interface:

Command output: ±10V analog (speed/torque command)

Encoder feedback: compatible with incremental / absolute encoders (1024/2048 ppr)

Axis support: up to 4-axis servo signal conversion

Spindle interface:

Analog: ±10V (spindle speed command)

Direction signal: spindle positioning / direction trigger and feedback

Operating temperature: 0°C ~ +55°C

Weight: approximately 0.45kg

III. Core Functions

Servo command conversion: Converts digital motion commands from the CPU board (FC200) into ±10V analog quantities and outputs them to the servo amplifier.

Encoder feedback processing: Receives servo/spindle encoder signals, completes position/velocity feedback signal shaping, amplification and differential conversion, and returns them to the CPU for closed-loop operation.

Spindle signal interaction: Outputs spindle speed commands, receives spindle orientation completion, zero speed, overload and other status signals to ensure precise spindle control.

Signal isolation and anti-interference: On-board photoelectric isolation, differential drive, EMI filtering, suppresses industrial site interference, improves signal stability.

Fault monitoring and alarm: Real-time detection of signal breakage, encoder abnormality, overcurrent / overvoltage, command overflow, on-board LED indicator lights for alarm and upload to the system.

Multi-axis synchronous signal distribution: Supports synchronous output of 4-axis servo commands to meet multi-axis linkage synchronous control requirements.

IV. Compatibility

Compatible backplane: JANCD-FC006 (I80 specific)

Required mainboards:

CPU board: JANCD-FC200 (SMON main control board)

PLC board: JANCD-FC210 / FC211

Storage board: JANCD-FC190 / FC191

Compatible enclosures: JZNC-IRK31M series

Replacement instructions: Compatible with FC225; cannot replace FC220/222 (pure spindle board), FC224 (program parsing board); only for I80, not compatible with I60.

V. Common Faults and Application Scenarios

Common faults

Servo axis no movement / jitter: Mostly due to aging of analog output chips or damage to the encoder signal channel.

Spindle orientation error / alarm: Faults in the spindle feedback signal processing circuit.

Frequent encoder abnormality alarms: Failure of signal isolation or filtering components. Application scenario

The machining centers, CNC lathes, and turning-milling combined machines that are compatible with the I80 system.

Equipment that requires multi-axis linkage and high-speed, high-precision processing (such as mold and aerospace part processing).

Scenarios where high signal stability is required (such as high-speed positioning of the spindle, rigid tapping, etc.).