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CHAUVIN ARNOUX
ULYS FLEX Modbus

ULYS FLEX Modbus

Product catalog summary

Overview: The ULYS FLEX Modbus is a metering solution designed for reduced installation costs and a wide dynamic range for current measurement, from 0.3 A to 20,000 A. It supports RS485 Modbus RTU communication and complies with ISO 50001 standards.

Specifications:

Auxiliary Power Supply: Voltage range of 85 to 265 VAC, safety rated at 300 V CAT III, with a maximum consumption of 1.6 VA - 1W.
Voltage Measurement: Range of 3x10/17 to 3x285/495 VAC at 50/60 Hz, with a minimum voltage for FFT calculation of 20/35 VAC.
Current Measurement: Maximum values include selectable ratings of 500 A, 4,000 A, or 20,000 A, with specific inrush current and FFT calculation requirements.
Accuracy: Voltage accuracy is ±0.2%, current accuracy is ±0.4%, and power accuracy is ±0.5%.

Display & Communication:

Screen & Keypad: Features a backlit LCD display with 3 lines and 4 digits, and a keypad with 3 keys plus 1 protected button.
Communication Port: Optically-isolated RS485 supporting MODBUS RTU/ASCII protocols with a baud rate of 300 to 57,600 bps.

Environmental Conditions: Operating temperature ranges from -25°C to +55°C, with a storage temperature up to +75°C. The device is designed for indoor use with an IP51 front panel protection.

Compliance: The device complies with various safety and electromagnetic compatibility standards, including EN61010-1 and EN61326-1.

Associated Products: The ULYS FLEX Modbus is compatible with ULYS submeters, ELOG DATA LOGGER, and E.ONLINE 3 software, and can be installed on busbars or conductors with large dimensions.

Catalog excerpts

ULYS FLEX Modbus Metering solution on Rogowski coils Quick set-up Reduced installation costs Wide dynamic range for measurement (0.3 A to 20,000 A) RS485 Modbus RTU communication ISO 50001

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AUXILIARY POWER SUPPLY Voltage range Safety Maximum consumption Type-T fuse (for mounting on exterior) Frequency VOLTAGE MEASUREMENT Voltage range Safety Minimum voltage for FFT calculation CURRENT MEASUREMENT 85 ... 265 VAC 300 V CAT III 1,6 VA - 1W 250 mA 50/60 Hz 3x10/17 ... 3x285/495 VAC — 50/60 Hz 300 V CAT III 20/35 VAC (multiplied by the VT ratio) with direct connection 3 selectable ratings (FSA = Full Scale Ampere): 500 A (700 A max), 4,000 A (5,600 A max.) or 20,000 A (28,000 A max.) 0.3 A for FSA 500 A, 1 A for FSA 4,000 A, 10 A for FSA 20,000 A Maximum value Inrush current (IST) 70...

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