Danfoss FC-280 VLT Midi Drive MCB Supply Instruction Manual

**Danfoss FC-280 VLT Midi Drive MCB Supply Instruction Manual

**

Installation Instructions

The instructions provide information about installing the VLT® 24 V DC Supply MCB 106 on VLT® Midi Drive FC 280.

VLT® 24 V DC Supply MCB 106 is a low voltage supply to the control card. The intended use case is to keep the eldbus communication of the control card active at all time during a mains power loss or power cycle. It does not enable full operation of the LCP (including the parameter settings) without connection to mains. The specications of VLT® 24 V DC Supply MCB 106 are described in Table 1.1.

Table 1.1 VLT® 24 V DC Supply MCB 106 Specications

Illustration 1.1 VLT® 24 V DC Supply MCB 106 Overview

VLT® 24 V DC Supply MCB 106 only supports CANopen®, PROFIBUS, PROFINET, and EtherNet/IP™ variant of VLT® Midi Drive FC 280.
CANopen® is a registered trademark for CAN IN
AUTOMATION international users and manufacturers group e. V.
EtherNet/IP™ is a trademark of ODVA, Inc.
Only Danfoss authorized, qualied personnel is allowed to use this equipment. The personnel must be familiar with the instructions and safety measures described in the VLT® Midi Drive FC 280 Operating Guide.

Items Supplied

• VLT® 24 V DC Supply MCB 106.
• Plug (2 poles).
• M3x6 screws (2).

Table 1.2 Ordering Numbers

Tools Required

• Torx 10 or slot screwdriver

Safety Instructions

DISCHARGE TIME
The frequency converter contains DC-link capacitors which can remain charged even when the frequency converter is not powered. High voltage can be present even when the warning LED indicator lights are o. Failure to wait the specied time after power has been removed before performing service or repair work can result in death or serious injury.

• Stop the motor.
• Disconnect AC mains and remote DC-link supplies, including battery back-ups, UPS, and DC-link connections to other frequency converters.
• Disconnect or lock PM motor.
• Wait for the capacitors to discharge fully. The minimum waiting time is specied in Table 1.3.
• Before performing any service or repair work, use an appropriate voltage measuring device to make sure that the capacitors are fully discharged.

Voltage [V]| Power range [kW (hp)]| Minimum waiting time (minutes)
---|---|---
200–240| 0.37–3.7 (0.5–5)| 4
380–480| 0.37–7.5 (0.5–10)| 4
11–22 (15–30)| 15

Table 1.3 Discharge Time

Installation

1. Stop the motor and the frequency converter, and wait until the capacitors discharge completely. The discharge time is specied in Table 1.3.
2. Mount the VLT® 24 V DC Supply MCB 106 with the bus decoupling kit (supplied with VLT® Midi Drive FC 280).
3. Fasten with 2 M3x6 screws (supplied with VLT® Midi Drive FC 280).
4. Tighten the screws to 0.5–0.7 Nm (4.4–6.2 in-lb)
   

5. Illustration 1.2 Mounting MCB 106 with Bus Decoupling Kit Mount the VLT® 24 V DC Supply MCB 106 and the bus decoupling kit assembly on the frequency converter.
6. Fasten with 2 M3x6 screws (supplied with VLT® 24 V DC Supply MCB 106).
7. Tighten the screws to 0.5–0.7 Nm (4.4–6.2 in-lb)
   1| M3x6 screws supplied with VLT® 24 V DC Supply MCB 106
   ---|---

Illustration 1.3 Mounting MCB 106 and Bus Decoupling Kit Assembly on the Frequency Converter

8. Connect the cable to the frequency converter, and x the cable with the spring.
9. Connect the external 24 V power supply cable to the terminal 35 and 36 of the plug

Table 1.4 24 V Back-up Option

Table 1.4 24 V Back-up Option

If IP21/Type 1 Conversion Kit is installed on the frequency converter, install the external 24 V power supply cable through the slot as shown in Illustration 1.5.

Illustration 1.5 Frequency Converter with IP21/Type 1 Conversion Kit

Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed. All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.

Danfoss A/S
Ulsnaes 1
DK- 6300 Graasten
vlt-drives.danfoss.com

References

• Global AC drive manufacturer - Danfoss Drives | Danfoss

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