AC VARIABLE FREQUENCY DRIVES, KW RATED – AC890PX SERIES

The AC890PX modular chassis variable speed AC drives are supplied in kit form, with outputs up to 400kW, providing system integrators and panel builders with the flexibility to assemble the drive into their electrical enclosure or control system

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Description

The AC890PX Modular Chassis variable speed AC drives are supplied in kit form, providing systems integrators and panel builders with the flexibility to assemble the drive into the same suite of electrical enclosures as the additional ancillary control components required to tailor the product to meet the needs of their customer’s applications. Available in a wide range of power ratings for both constant and variable torque applications, the dual-mode AC890PX Modular Chassis Drive provides a cost effective solution for industrial process applications, as well as energy-saving control of larger power pumps and fans. The AC890PX range of modular variable speed AC drives are available in 110kW to 400kW ratings, with input supply options of 380-460VAC, 500-575VAC and 600-690VAC.

Features:
• Suitable for use with all types of AC motor
• Operation with or without feedback
• Compatible with a wide range of feedback options
• Conforming to international standards
• Ultra-compact drive
• Low-maintenance ensures maximum machine availablilty and productivity
• Total flexibility for easy factory integration
• Active Front-End (AFE) version – energy regeneration with low harmonic distortion
• Supplied with mounting brackets to suit Rittal’s TS industrial enclosure range
• Can be integrated into the main enclosure without additional conduits and trunking

Safe Torque Off – STO :
The AC890 PX Modular Chassis drive features Safe Torque Off functionality as standard, offering users protection against unexpected motor start-up in accordance with EN18849-1 PL-e or SIL3. Two independent STO control channels are implemented in hardware. A fault in one control channel will not affect the other channel’s ability to prevent the drive from starting, i.e. the STO function of the is tolerant to any single fault. It may not be tolerant to an accumulation of faults. This is in keeping with its declared safety ratings. If one or both STO control inputs is requesting the STO function, the drive will not start, even if for example, the drive’s software malfunctions and tries to cause the motor to turn. The STO function is implemented in hardware; it overrides all software activities. The only software involvement is to report STO status to the user via an MMI, serial communications link or user terminal on the AC890 control board as defined by the drive configuration.

Standards:
Pollution index : Level II (non-conductive pollution, except for temporary condensation).
Low voltage directive 2006/95/EC
CE Marked to EN618000-3 (EMC Directive).

Technical Specifications:
Power Supply:
Three Phase Units
– 380-460 VAC +/- 10 %, 50-60 Hz +/- 5% (110-400kW)
– 500-575 VAC +/- 10 %, 50-60 Hz +/- 5% (112-373kW)
– 600-690 VAC +/- 10 %, 50-60 Hz +/- 5% (110-400kW)

Environment:
0-40°C (derate up to 50°C maximum)
Up to 1000m ASL (derate 1.5% per 100m up to 2000m max)

Protection:
IP20 / NEMA1

Overload:
Asynchronous motor – standard duty : 110% for 60 sec
Asynchronous & servo motor – heavy duty : 150% for 60 sec

Analog Inputs :
4 total – 2 configurable (0-10V, ±10V, 0-20mA, 4-20mA), +2 configurable (0-10V, ±10V)

Analog Outputs :
2 configurable (0-10V, ±10V)

Digital Inputs :
7 configurable (24V)

Digital I/O :
2 configurable (24V)

Relay digital output:
1 configurable (24V)
3 additional 230V rated dry contacts

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