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Overview
- Two relay outputs (R01, R02) with configurable NO/NC contacts
- Switching capacity: 24VDC/8A, 250VAC/8A, 125VDC/0.4A
- Minimum switching load: 5V/10mA
- Screw terminals (M3) for secure connections
- Compatible with VACON NX AC drives (slot B)
Specifications
Series | OPT-B5-V:3RO(NO) |

39524
6-32 Square Drive Round Head Machine Screw Kit, 1/2" (100), 3/4" (90), 1" (65), 1-1/4" (50), 1-1/2" (40) and 2" (35), Zinc PlateFrequently Asked Questions
How many board slots are available on Vacon 100 drives?
Vacon 100, FLOW, and HVAC models have three slots (C, D, E), while Vacon 100X has two slots (D, E).
Can I install or replace option boards while the AC drive is powered on?
No, it is not allowed to add or replace option boards with the power switched on, as this may damage the boards.
What is the switching capacity of relay outputs on OPTB2 and OPTB5 boards?
Relay outputs on OPTB2 and OPTB5 boards can handle 24 VDC/8 A, 250 VAC/8 A, or 125 VDC/0.4 A.
What types of inputs does the OPTB4 board offer?
The OPTB4 board features one galvanically isolated analog input (0(4)...20 mA) and two galvanically isolated analog outputs.
What are the technical specifications for Type B option boards?
Type B boards offer isolated control connections, 10-bit resolution for analog I/O, and various input/output types including digital, analog, and relay.
What is the maximum current for the +24V auxiliary voltage output?
The total load on all +24V/EXT+24V output terminals must not exceed 250 mA, with a maximum of 150 mA from a single board.
What is the isolation voltage rating for control connections on Type B boards?
The control connections are isolated from mains potential with an isolation voltage rating of 500 V.
Can I use the +24V/EXT+24V output to power the motor control if mains power is lost?
No, the power unit is not powered through EXT+24V, so motor control will not work if mains power is lost.
What is the maximum current load for digital outputs on the OPTB1 board?
Digital outputs on the OPTB1 board are open collector type with a maximum rating of 50 mA at 48 V.
What is the required cable type for control connections?
Control cables must be at least 0.5 mm2 screened multicore cables, with a maximum terminal wire size of 2.5 mm2 for relay and other terminals.
Frequently Asked Questions about Danfoss
What certifications and standards do Danfoss products comply with?
Danfoss products meet an extensive range of international certifications and standards, including EU directives (CE mark), mechanical standards, functional safety standards, and regional certifications. Key certifications include CE marking covering Low Voltage, EMC, Machinery, ErP, ATEX, and RoHS directives; mechanical standards like EN 60529 and UL 50; functional safety standards such as EN 61800-5-2 and IEC 61508; and regional certifications including cULus (North America), UKCA (UK), EAC (Russia), and C-Tick (Australia & New Zealand).
What certifications and standards do Danfoss products comply with?
Danfoss products meet an extensive range of international certifications and standards, including EU directives (CE mark), mechanical standards, functional safety standards, and regional certifications. Key certifications include CE marking covering Low Voltage, EMC, Machinery, ErP, ATEX, and RoHS directives; mechanical standards like EN 60529 and UL 50; functional safety standards such as EN 61800-5-2 and IEC 61508; and regional certifications including cULus (North America), UKCA (UK), EAC (Russia), and C-Tick (Australia & New Zealand).
What communication protocols do Danfoss products support?
Danfoss products support a comprehensive range of communication protocols including PROFIBUS DP V1, PROFINET with dual port, EtherNet/IP with dual port, CANopen, DeviceNet, and Modbus RTU (integrated as standard). Additional protocols supported include Modbus TCP, BACnet (MS/TP and IP), EtherCAT, PowerLink, LonWorks, AS interface, and Siemens FLN P1. The specific protocols available vary by product line, with VLT®, VACON®, iC7, and iC2 drives offering extensive fieldbus independence to integrate seamlessly into various automation systems.
What certifications and standards do Danfoss products comply with?
Danfoss products comply with a comprehensive range of certifications and standards including EU directives (CE mark covering Low Voltage, EMC, Machinery, ErP, ATEX, RoHS, and Radio Equipment directives), mechanical standards (EN 60529 IP code, UL 50), functional safety standards (EN 61800-5-2, EN ISO 13849-1, EN 62061, IEC 61508), and ecodesign standards (IEC 61800-9-2). Regional certifications include cULus (North America), UKCA (United Kingdom), EAC (Russia), C-Tick (Australia & New Zealand), TÜV (European safety), and compliance with REACH directive for chemical restrictions.
What industries and applications are Danfoss products used for?
Danfoss products are used across several key industries including HVAC, Food and Beverage, Packaging, Water and Wastewater, Refrigeration, and Marine applications. Their drives and automation solutions serve a wide range of applications such as pumps, fans, compressors, conveyors, process and material treatment equipment, mills, drums, kilns, winding/unwinding systems, drilling equipment, propulsion systems, winches, and power conversion for generation and smart grids. Danfoss has particular expertise in marine applications with over 40 years of experience, providing solutions for ship owner-operators, shipyards, system integrators, and OEMs.
What are the key features of Danfoss products?
Key features of Danfoss products include integrated design elements (harmonics, EMC design, DC choke, and EMC filter) that save installation time and panel space while improving reliability. Installation and setup features include removable terminals, USB ports for easy PC connection, application setup wizards, and optional memory modules for convenient parameter transfer. Safety and control features encompass integrated Safe Torque Off (STO) dual channel functionality, control algorithms that run both induction and PM motors, and integrated brake choppers for drives up to 22 kW. Additional operational benefits include side-by-side mounting without derating, operation up to 45°C without derating, and robust construction designed for maximum uptime and efficiency across various industrial applications.
What environmental ratings do Danfoss products have?
Danfoss products offer various environmental protection ratings to meet different application requirements. Their VLT drive series are available in IP00 (Chassis), IP20 (Protected chassis), IP21 (NEMA Type 1), IP54 (NEMA Type 12), IP55, and IP66 (NEMA 4X) ratings. These ratings provide protection ranging from basic chassis protection to dust-tight and water-resistant enclosures suitable for both indoor and outdoor applications, with NEMA 4X/IP66 offering the highest level of protection against windblown dust, rain, splashing water, and external ice formation.
What accessories are available for Danfoss products?
Danfoss offers an extensive range of accessories for their VLT® drive products, organized into several categories: Fieldbus options (including PROFIBUS, DeviceNet, CANopen, PROFINET, Ethernet/IP, and Modbus TCP communication cards), I/O and feedback options (such as general purpose I/O, encoder input, relay cards, and sensor input modules), safety options (including Safe PLC I/O and PTC thermistor cards), motion control options (position controllers and synchronizing controllers), power options (brake resistors and various filters), and other accessories like mounting kits, USB cables, and IP rating conversion kits. These accessories are designed to be installed in specific option slots (A, B, C, and D) on the drives to add extra features and tailor the drive to specific application needs.
What are the main product lines offered by Danfoss?
Danfoss offers several main product lines including: Danfoss Drives (featuring VLT® and VACON® variable frequency drives, plus iC7 and iC2-Micro series), Industrial Automation solutions (sensors, switches, and fluid controls), Danfoss Semco firefighting systems, Sondex® Heat Exchangers, Hydronic Balancing and Control valves, Power Solutions (hydraulic components and PLUS+1® controllers), High Pressure Pumps for seawater applications, Industrial Refrigeration components, and Danfoss IXA emission gas measurement sensors. These product lines serve diverse industries including marine, HVAC, food and beverage, water treatment, and heavy industrial applications.
What is Danfoss's warranty policy?
Danfoss offers standard factory warranty coverage for drives that covers product failures due to defects in materials or workmanship. For new drives, they provide 2-6 year DrivePro Extended Warranty options with factory repair (including parts, labor, and return shipping) and onsite service (covering parts, labor, and travel costs up to $1,000 per incident). They also offer DrivePro-tection warranty that extends coverage to line and load anomalies, accidental moisture exposure, physical damage, and normal wear, though it excludes vandalism, misapplication, and natural disasters. However, the complete warranty terms and conditions are available on their website at www.danfossdrives.com.



