ADLINK AMP-304C Advanced Motion Control Card Complete Guide

ADLINK AMP-304C Four Axis Advanced Motion Control Card

In the field of high-end servo/stepper motor multi axis collaborative control, the performance of the motion control card directly determines the machining accuracy, operating speed, and stability of the equipment. ADLINK AMP-304C, as a 4-axis advanced pulse motion control card based on PCI Express Gen1 x1 interface, inherits all the functions of AMP-104C, significantly increases the pulse output frequency (up to 9.99Mpps), expands the position latch (12 channels) and position comparison trigger (16 channels) capabilities, and introduces advanced motion algorithms such as arc/spiral interpolation, backlash compensation, and vibration suppression for the first time. Combined with 13 return to origin modes and flexible I/O configurations, it has become the core motion control component for semiconductor packaging, precision laser processing, high-end CNC machine tools, and robot applications. This article is based on the official data manual, comprehensively interpreting its hardware architecture, motion characteristics, I/O configuration, and system integration points, providing detailed technical references for motion control engineers.

Product positioning and performance leap

AMP-304C is positioned for high-performance multi axis motion control, with a pulse frequency that is twice as high as AMP-104C (up to 4.9Mpps), reaching 9.99Mpps. It can drive stepper drivers with higher subdivision ratios or servo drivers that support high pulse inputs, achieving micrometer or even nanometer level positioning. At the same time, the encoder provides feedback with an input frequency of up to 16MHz (in 4th harmonic mode) and a 32-bit counter accuracy, ensuring real-time position control for full or semi closed loop control.

This card supports up to 16 cards coexisting in the same system (through card number dialing), and can be expanded up to 64 axes to meet the needs of large-scale automated production lines. Its DIN-304C dedicated terminal board supports cable selection to adapt to specific servo drives (such as Mitsubishi, Yaskawa, Panasonic, etc.), further simplifying interface matching.

Core hardware interface and signal definition

1. Main connector (68 pin SCSI-II)

Provide motion control signals for all axes, encoder feedback, servo interface I/O, and some dedicated I/O:

Pulse output (per axis): Supports three output modes: CW/CCW, OUT/DIR, and AB phase pulses, with differential/single ended options, and a maximum frequency of 9.99Mpps.

Encoder feedback (per axis): EA+/-, EB+/-, EZ+/- differential input, supports CW/CCW and 1x/2x/4x AB phase counting modes, with a maximum input frequency of 4MHz (16MHz after 4x) and a counter resolution of 32 bits.

Servo interface signal: Each axis provides standard signals such as SVON (servo enable), ERC (deviation counter reset), ALM (servo alarm), INP (positioning completion), RDY (servo preparation), etc., making it easy to plug and play with mainstream servo drivers.

Mechanical limit/deceleration signals: positive limit (EL+), origin (ORG), deceleration stop (SD), etc., all optically isolated inputs, 24V level, and limit logic (NO/NC) can be set through onboard dip switch hardware without software initialization.

Dedicated position latch input: 4-channel Dedicated LTC (up to 1MHz), used for high-speed position capture, such as probe or flyby triggering.

Dedicated Position Comparison Trigger Output: 4 Dedicated CMPs (up to 1MHz), each of which can be selected through onboard jumpers to output 5V, 24V, or Open Collector levels, directly driving loads of different voltages (such as lasers or gas valves).

Emergency stop input: can be configured as normally open or normally closed, and immediately stops all axis pulses upon triggering.

2. Expansion connector (40 pin box head to 37 pin D-SUB)

16 non isolated TTL digital inputs (up to 1MHz), can be used to connect encoder frequency division outputs, grating rulers, or high-speed external signals.

16 non isolated TTL digital outputs (up to 1MHz), suitable for high-speed status indication or synchronous control.

3. On board isolated GPIO (via main connector)

16 isolated digital inputs (24V, source type, 10kHz) can be used as general sensor inputs or configured as additional position latch inputs (software can choose to use 4 isolated DI inputs as LTC, up to a total of 12 latch inputs with dedicated LTC).

16 isolated digital outputs (5~24V, current 100mA, 1MHz), of which 8 can be configured as position comparison trigger outputs (CMP), totaling up to 16 comparison trigger channels with 4 dedicated CMPs.

4. Configure dip switch

Card Index: 0~15, multi card recognition.

EL logic selection: positive and negative limit normally open/normally closed.

Initial state of DO: The default level of all isolated outputs when powered on, which can be preset as a safe state.

Stop mode selection: EMG emergency stop (immediate stop) or deceleration stop (stop on a preset deceleration slope).

Detailed explanation of advanced motion control functions

1. Acceleration and deceleration curves (T-curve and S-curve)

T-curve (trapezoid): constant acceleration, suitable for general positioning.