ETEL Accuret MODULAR 300/400/600 Controller Selection Guide

Quick trigger (1D/2D): Based on theoretical or actual encoder position, output hardware trigger signal when the position reaches the set value, with a response time of less than 20 ns (nanosecond level), suitable for high-speed flying, dispensing synchronization triggering and other scenarios.

Safe stop algorithm: When overspeed, overtravel, or communication loss is detected, a controlled emergency stop is automatically executed to ensure safety and avoid mechanical impact damage to precision components.

Identification and tuning tool: Provides frequency sweep and step response identification functions, automatically calculates optimal PI parameters, and generates performance evaluation reports to reduce on-site debugging time.

In addition, the RTV (Real Time Values) function provides 8 real-time data channels per axis (such as speed, acceleration, torque, position error, etc.), which can be uploaded to the upper computer through the bus in 100 µ s cycles for process monitoring and predictive maintenance.

Communication and Programming Interface

The controller comes standard with three communication ports:

USB 2.0 (full speed 12 Mbps): Only used for local parameter settings and firmware upgrades, does not support real-time control.

Ethernet (10/100 MHz): Supports TCP/IP protocol, used for non real time data exchange with the upper computer (such as status monitoring, recipe download).

TransnT (1 Gbps): ETEL exclusive real-time Ethernet bus, with a minimum cycle time of 50 µ s (typical 100 µ s), supports multi axis synchronization, real-time position/torque command transmission, and is the core link for high-speed linkage applications.

The encoder interface is compatible with EnDat 2.1/2.2 (RS485), digital TTL (orthogonal or clock/data, up to 10 MHz input), and analog 1 Vpp sine/cosine (up to 500 kHz). User I/O includes 5 digital inputs/2 digital outputs per axis (configurable for fast capture or limit), as well as 4 common fast inputs/outputs (response time in microseconds). If more analog signals are needed, an optional expansion board can be used to add 8 digital I/O channels and 4 16 bit analog I/O.

Software development supports C/C++/. NET environments on Windows 7/8/10 (32/64 bit) and provides real-time extension support for RTX2016 and RTX64. ETEL provides an EDI (Device Interface) dynamic link library, which, when combined with ComET debugging software (graphical interface), can quickly complete parameter tuning, waveform oscilloscope, and firmware online upgrades.

Practical Selection Guide

Based on typical application requirements, it is recommended to choose according to the following steps:

Determine the bus voltage: If there is already a DC power supply on site (such as 48V, 300V, 600V), directly match the corresponding series; If using an AC power grid, the peak voltage after rectification should be considered (single-phase 220V rectification is about 310V, suitable for the 300 series; Three phase 380V rectification is about 537V, exceeding the upper limit of the 400 series, and the 600 series must be selected. Note that although the 400 series is labeled as 400VDC, it can actually withstand 400V, so it cannot be used after three-phase 380V rectification. It is necessary to add a transformer to reduce the voltage or choose the 600 series.

Calculate continuous/peak current: Calculate the maximum continuous load current and acceleration/deceleration peak current of each axis, and compare them with the continuous/peak parameters of the controller. For example, if a certain axis lasts for 6 Arms and has a peak of 12 Arms, EA-P2M-400-10/20A can be selected (continuous 10A is satisfied, with a margin for peak 20A). Note that when multiple axes are running simultaneously, the total current of the power module needs to be accumulated.

Evaluate power supply capacity: The AC input capacity of the power module must be higher than the total output power of the controller. For example, for two 15/40A controllers (each with a maximum output power of about 15A × 400V=6kW, and two with 12kW), it is obviously insufficient to choose EA-S0M-400-40/80A (three-phase 4.8kW). At this time, a larger independent power source should be considered.

Additional functional requirements: If force control or dual encoders are required, all series support them without the need for additional hardware. But the gantry control requires at least two axes, so a dual axis controller must be selected.

Environment and Installation: The width of the 300/400 series controller is 130mm, while the 600 series is wider (259mm), and the control cabinet space needs to be checked in advance.