Danfoss 130B1100 VLT PROFIBUS DP MCA 101 Fieldbus Option Card

A PROFIBUS DP-V1 fieldbus card for VLT frequency converters

130B1100 is the Danfoss VLT PROFIBUS DP MCA 101 option, an A-option card that lets a VLT frequency converter communicate with any master that meets the PROFIBUS standard. It supports PROFIBUS DP-V1 and the PROFIdrive frequency converter profile with Danfoss’s company-specific implementation. The card plugs into the option A slot of the drive. The Danfoss Installation Guide MG33C602 states that it covers ordering numbers 130B1100 and 130B1200, and the store lists 130B1100 as a spare part in the interface board options group.

Technical specifications

Bus length, speed and addressing

The Installation Guide gives the maximum total bus cable length including drop cables: 1000 m per segment at 9.6 to 187.5 kBaud, 400 m at 500 kBaud, 200 m at 1.5 MBaud and 100 m at 3 to 12 MBaud. A bus segment can carry 32 field devices; a repeater counts as a node in each of the two segments it connects. Set a unique address with the 8-way address switch, or leave all switches on ON and assign the address through parameter 9-18 Node Address. The terminal wiring uses a red wire on terminal 62 and a green wire on terminal 63 for the standard PROFIBUS cable colour code.

Fitting the card and what to check

Mount the option with the connector facing up for top cable entry or facing down, keep at least 200 mm between power, motor and fieldbus cables, and fit the supplied EMC bracket so the cable screen contacts the metal. Items supplied when the option is not factory fitted are the card and connector, an LCP cradle, front covers, stickers, an accessories bag with an EMC bracket and the installation guide. Programming and configuration are described in the separate MCA 101 Programming Guide, and the card can be configured with MCT 10 Set-up Software. Check the drive series and software version before ordering, because the guide names only the VLT drives listed above.

Key features of the MCA 101 card

• PROFIBUS DP-V1 communication with the PROFIdrive profile.
• Fits the option A slot of the supported VLT drive series.
• Station address 0–125, set with switches or by parameter 9-18.
• Built-in bus termination switch, with terminals 66 and 67 providing 5 V DC for external termination.
• Supports baud rates from 9.6 kBaud up to 12 MBaud, depending on bus length.

Cyclic and acyclic data

PROFIBUS DP-V1 adds acyclic services to the standard cyclic exchange. In practice, the PLC uses cyclic data for the control word, speed reference, status word and actual speed, while acyclic access allows parameters to be read or written without interrupting the process data. This is useful for diagnostics, reading fault logs or changing ramp times from the control system. The configuration of process data is done in the drive parameters and in the GSD file loaded into the master engineering tool.

Engineering steps

1. Import the Danfoss GSD file for the card into the PLC configuration software.
2. Select the PPO type that matches the number of process data words you need.
3. Set the same station address on the card as in the master configuration.
4. Set the drive parameters for control source and reference so that the fieldbus controls the drive.
5. Test the communication and verify control word handling before running the motor.

Cabling practice for reliable communication

Most PROFIBUS faults are caused by wiring rather than by electronics. Use proper PROFIBUS cable, connect the screen at both ends to earth with a large contact area, and keep the bus cable separate from motor cables. Only the first and last devices on each segment should be terminated. In panels with several drives, check the termination switches on every card; a termination accidentally left on in the middle of a segment is a common cause of intermittent errors.

Use in Oman and GCC installations

The card is widely used in water and wastewater pumping, HVAC plant and process lines where VLT drives are connected to a PLC or DCS. In hot plant rooms, keep the drive cooling within the drive manufacturer’s limits, as the option card is cooled by the same air. Spare cards are worth stocking at remote sites, because replacing the card with the same type and setting the same address restores communication without reprogramming the PLC.

What to include in your RFQ

Please state the ordering number 130B1100, the quantity, and the drive series and type code it will be fitted to. If you also need a D-sub 9 adapter or bus connectors, list them separately. Include the delivery location and required date.

Replacing an existing card

Before removing a card, note the address switch settings and termination position and save the drive parameter set. Isolate the drive and wait for the DC link to discharge as stated on the drive label. Fit the new card in the same slot, restore the address and termination, and confirm the bus status before returning the drive to automatic control.

Documents and quotation

The Danfoss PROFIBUS DP MCA 101 Installation Guide is linked on this page. Browse the industrial communications category for related interface modules. Seven Star LLC is an independent supplier in Muscat; please send the drive type code, firmware version and the PROFIBUS master details with your RFQ and confirm that 130B1100 (and not the variant 130B1200) is the card you require.