Parker COMPAX series compact servo controller: integrated motion control and drive

3.3 COMPAX 45XXS / 85XXS

These two models are designed for 400V/460V three-phase industrial power grids. 45XXS rated current 6.5A (400V) or 5.4A (460V), peak value 13.0A, power 4.5kVA; 85XXS provides a rated current of 12.5A (400V) or 10.5A (460V), with a peak value of 25.0A and a power of 8.6kVA. They are equipped with a 300W continuous power braking resistor (peak 3kW for 1 second) and reserve an external 22 Ω/450W resistor interface. Its heat dissipation design and installation dimensions are suitable for more demanding heating environments, and are commonly used in machine tools, flying shears, and heavy-duty conveying equipment.

3.4 COMPAX-M series (P1XXM, 02XXM, 05XXM, 15XXM)

COMPAX-M adopts a modular design, and the controller itself does not include a rectifier unit, but is powered by a central power module (NMD10 or NMD20). This architecture allows one power module to simultaneously drive multiple COMPAX-M drivers (up to 15kW), significantly reducing the cost of multi axis systems. The power of each sub model is P1XXM (3.8kVA, peak 8.5A), 02XXM (4.5kVA, peak 8.5A), 05XXM (8.0kVA, peak 17.0A), and 15XXM (17.0kVA, peak 50.0A). The power supply voltage range is 100V-650V DC, and the regenerated energy is centrally processed through the power module.

3.5 COMPAX 35XXM

As a high-power flagship in the series, the 35XXM is directly connected to a 400V/460V three-phase power grid, with a rated current of up to 50A effective value, a peak value of 100A, and an output power of 35kVA. Its built-in energy storage capacitor reaches 3450 μ F, which can absorb 542Ws of regenerative energy. The external braking resistor is 10 Ω/2kW. This model is suitable for large presses, injection molding machine parts taking robots, or centrifugal equipment with high inertia loads. All COMPAX models feature a fully enclosed metal casing with a protection level of IP20 (customizable to IP54), and are equipped with LED status display or a 3-digit 7-segment digital tube (excluding 1000SL) for fault diagnosis.

Core control functions and software variants

In addition to the standard positioning type (XX00), the COMPAX series also offers various specialized software variants, which can achieve specific motion control functions through firmware without the need for additional hardware.

4.1 COMPAX XX30- Cone Control

This variant is specifically designed for circular positioning applications such as indexing tables and rotating tables. The position coordinates are programmed in degrees and support both forward and reverse directions. Its feature lies in the "pitch calculator" instruction, which can divide the frustum into up to 1000 angle segments, suitable for multi station assembly machines. The system supports external position monitoring and can compensate for mechanical transmission errors by adding encoders to improve the final positioning accuracy. Typical applications include rotary combination machine tools, rotary filling machines, and indexing cutting equipment.

4.2 COMPAX XX50- Synchronous Cycle Control

This variant is designed for continuous operation of flying shears, cross cutting machines, and follow-up machining equipment. Its core function is to achieve synchronous tracking between the axis and the moving material. When the material is running at a certain speed, COMPAX controls the saw or moving worktable to accelerate to the material speed, and detects the "synchronous operation" state with a relative speed of zero, and then triggers the cutting or processing action through digital output. After processing, decelerate from the shaft and return to the standby position, waiting for the next cutting length signal. This variant also handles boundary logic such as "waste length" and "short material length": when the material speed is too high or the cutting length is too short, causing the standby time to approach zero, the system automatically switches to a longer alternative length to ensure reliable processing. In addition, the marking related processing (color code positioning) function allows for fixed length cutting or trimming through external input signals, suitable for positioning cutting of printing and packaging materials.

4.3 COMPAX XX60- Electronic Gearbox

The XX60 variant achieves electronic synchronization between the spindle and the external spindle. The signal of the external spindle can be provided by encoders, other COMPAX simulation outputs, or servo drivers. Users can freely set the transmission ratio (greater than 1, equal to 1, or less than 1) through two parameters, and support negative ratios to change the direction of rotation. There are two real-time inputs available for switching between the preset two transmission ratios. This variant provides two coordinate reference modes: in the "internal reference" mode, external pulses only serve as relative positioning superposition and do not change the internal zero point of the axis; In the "main position reference" mode, the external position values will be offset in real-time from the axis coordinate system, achieving superimposed motion, that is, the internal positioning program can still be executed when machining moving workpieces. Typical applications include synchronous angle control, color group synchronization of printing machines, and drilling or dispensing on continuous materials.