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BAMU-12C auxiliary measurement unit Hardware manual Table of contents 3. Installation 3AXD50000117840 Rev C Original instructions EFFECTIVE: 2024-07-05...
Safety instructions for ACS880 liquid-cooled multidrive cabinets and modules (3AXD50000048633 [English]). WARNING! Note that BAMU-12C auxiliary measurement unit is used for measuring main circuit voltage. Main voltage can be present even if auxiliary circuit voltages are switched off.
8 Introduction to the manual Target audience This manual is intended for people who install, start-up or operate drives or multidrive modules with BAMU-12C auxiliary measurement unit. The reader is expected to know the fundamentals of electricity, wiring, electrical components and electrical schematic symbols.
Hardware description Contents of this chapter The chapter describes the hardware of BAMU-12C auxiliary measurement unit. Hardware description BAMU-12C auxiliary measurement unit is a measurement unit for precise voltage and current measurements. The unit has: • two 3-phase voltage inputs •...
10 Hardware description Layout drawing Voltage measurement connector. For pin descriptions, see section Voltage meas- urement connections (XU1, XU2) (page 14). Voltage measurement connector. For pin descriptions, see section Voltage meas- urement connections (XU1, XU2) (page 14). Current measurement connector. For pin descriptions, see section Current meas- urement connections (XIU, XIV, XIW) (page 15).
Installation 11 Installation Contents of this chapter The chapter instructs in installing BAMU-12C auxiliary measurement unit. Checking the delivery The package contains the measurement unit. Make sure that there are no signs of damage. Placing WARNING! Protect the unit against accidental contact. There are connectors that are connected to drive main circuit potential.
12 Installation Mechanical installation WARNING! Obey the safety instructions of the drive. If you ignore them, injury or death, or damage to the equipment can occur. If you are not a qualified electrical professional, do not do installation, commissioning or maintenance work. Stop the drive and do the steps in section Electrical safety precautions in the drive safety instructions.
Installation 13 Electrical installation WARNING! Obey the safety instructions of the drive. If you ignore them, injury or death, or damage to the equipment can occur. If you are not a qualified electrical professional, do not do installation, commissioning or maintenance work. WARNING! Stop the drive and do the steps in section Electrical safety precautions in the drive safety instructions.
14 Installation Voltage measurement connections (XU1, XU2) ■ Pin descriptions of connector XU1 are given in the table below. Name Description U-phase 1 Not connected V-phase 1 Not connected W-phase 1 Not connected Neutral 1 Pin descriptions of connector XU2 are given in the table below. Name Description U-phase 2...
Connection to the control unit ■ Connect BAMU-12C auxiliary measurement unit to the first unused channel of the control unit of the supply or converter unit of the drive with fiber optic cables. For parameter settings, refer to the appropriate firmware manual of the supply or converter...
16 Installation Wiring example – Voltage and current measurements in use ■ Note: If you use BAMU-12C auxiliary measurement unit in an optimal grid control system, this diagram is not valid. Refer to ACS880 multidrives, Optimal grid control (option +N8053) supplement manual (3AXD50000220717 [English])
Distances to other com- 690 V AC basic insulation (8 mm [0.31 in]) from control electronics ponents Ambient conditions BAMU-12C auxiliary measurement unit complies with RoHS directive (2002/95/EC). Operating temperature 0… +70 °C (32…158 °F) without self-heating Storage temperature -40…+85 °C (-40…185 °F)
22 Technical data Related standards • Safety requirements: EN 50178 Electronic equipment for use in power installations • IEC 61800-5-1 Semiconductor power converters for adjustable frequency drive systems • UL 508 C Industrial Control Equipment • EMC emission: EN/IEC 6100-6-4:2007 Emission standard for industrial environments •...
Product and service inquiries Address any inquiries about the product to your local ABB representative, quoting the type designation and serial number of the unit in question. A listing of ABB sales, support and service contacts can be found by navigating to www.abb.com/contact-centers.