Danfoss VLT PROFIBUS DP MCA 101 Manuale utente

Installation Guide

VLT® PROFIBUS DP MCA 101

VLT® AutomationDrive FC 361

1 Introduction

1.1 Purpose of this Installation Guide

This installation guide provides information for quick replacement of a VLT® PROFIBUS DP MCA 101 in the VLT® AutomationDrive FC

361.

The installation guide is intended for use by qualified personnel. Users are assumed to know the VLT® drive, with PROFIBUS

technology, and with the PC or PLC used as a master in the system.

Read the instructions before installation and ensure that instructions for safe installation are observed.

1.2 Trademarks

VLT® is a registered trademark for Danfoss A/S.

AN274235331989en-000101 / 130R0855 | 1

2 Safety

2.1 Safety Precautions

WARNING

DISCHARGE TIME

The drive contains DC-link capacitors, which can remain charged even when the drive is not powered. High voltage can be

present even when the warning indicator lights are off.

Failure to wait the specified time after power has been removed before performing service or repair work could result in death

or serious injury.

-Stop the motor.

-Disconnect AC mains, permanent magnet type motors, and remote DC-link supplies, including battery back-ups, UPS, and

DC-link connections to other drives.

-Wait for the capacitors to discharge fully. The minimum waiting time is specified in table Discharge time and is also visible

on the nameplate on top of the drive.

-Before performing any service or repair work, use an appropriate voltage measuring device to make sure that the capacitors

are fully discharged.

Table 1: Discharge Time

Voltage [V] Power range [kW (hp)] Minimum waiting time (minutes)

380–480 90–315 kW (125–450 hp) 20

Safety

Installation Guide | VLT® PROFIBUS DP MCA 101

AN274235331989en-000101 / 130R0855

3 Technical Data

3.1 Cabling Requirements

• Terminate the nodes at the physical ends of each segment. If the bus segment is branched, the device furthest from the segment

connector represents the end of the segment.

• Terminals 66 and 67 provide a 5 V DC supply, available for external termination.

NOTICE

The PROFIBUS D-sub 9 adapter also features a termination switch. When the D-sub 9 adapter is used, set the termination switch

on the fieldbus option to OFF to avoid double termination.

NOTICE

When the fieldbus is extended with a repeater, terminate the extension at both ends.

NOTICE

To avoid impedance mismatch, use the same cable type throughout the entire network.

3.2 Cable Specifications

Table 2: Cable Specifications

Impedance at a measuring frequency from 3–20 MHz 135–165 Ω

Resistance <110 Ω/km

Capacitance <30 pF/m

Damping (total wire length) Maximum 9 dB over the whole wire length.

Cross-section Maximum 0.34 mm2, AWG 22.

Cable type Twisted in pairs, 1 x 2, 2 x 2, or 1 x 4 wires.

Shielding Copper-braided shield, or braided shield and foil shield.

Technical Data

Installation Guide | VLT® PROFIBUS DP MCA 101

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4 Installation

4.1 Mounting

Procedure

1. Make sure that the power to the drive is disconnected.

2. Remove the front cover from the drive.

3. Remove the LCP (Local Control Panel) or blind cover, and then remove the LCP cradle from the drive.

4. Disconnect the communication cables from the existing MCA option card.

5. Remove the existing MCA option card from the drive.

6. Fit the new VLT® PROFIBUS DP MCA 101 option card into slot A. Mount the option with the connector facing up for top cable entry ,

or with the connector facing down for bottom cable entry. If an MCB option is installed, only top cable entry is possible.

7. Connect the communication cables.

8. Set the termination switch (shown in the illustration in 4.2 Setting Address Switches) on the fieldbus option to ON, when the drive

is the last station on the segment.

9. Set the address switches if needed.

10. Fit the LCP cradle.

11. Fit the LCP or blind cover in the LCP cradle.

12. Fit the front cover on the drive.

13. Connect power to the drive.

4.2 Setting Address Switches

Set the address switches to give the option a unique ID. Select an address range from 0–125 (factory setting 127) according to table 3.

Table 3: Settings for the Address Switches

Switch 8 7 6 5 4 3 2 1

Address value Not used +64 +32 +16 +8 +4 +2 +1

5 Not used OFF OFF OFF OFF ON OFF ON

35 Not used OFF ON OFF OFF OFF ON ON

82 Not used ON OFF ON OFF OFF ON OFF

Alternatively, assign a unique ID from parameter 9-18 Node Address. For setting the address from parameter 9-18 Node Address,

ensure that all address switches are set to ON. When the address is already set using address hardware switches, the address value

shown in parameter 9-18 Node Address is read-only.

Installation

Installation Guide | VLT® PROFIBUS DP MCA 101

AN274235331989en-000101 / 130R0855

e30bd878.11

1 2

SW. ver. XX.XX

OFF

Code No. 134B6778

Termination

Address

OFF

S600

S300

LD202 LD200

LD201 LD203

8 7 6 5 4 3 2 1

PROFIBUS Option A

1Termination switch 2Address switches

Illustration 1: Location and Sequence of the Address Switches

Installation

Installation Guide | VLT® PROFIBUS DP MCA 101

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4.3 Wiring Procedures

Procedure

1. Mount the fieldbus connector on the fieldbus option (terminals 62, 63, 66, and 67).

2. Prepare the fieldbus cable by stripping a section of the cable insulation, so that the cable screen is in contact with the EMC bracket.

Keep the unshielded wire as short as possible. For cable specifications, refer to 3.2 Cable Specifications.

3. Connect the fieldbus cable wires to the terminals according to the color code of the wires, see illustration 2.

e30ba671.11

CS 62 63 66 67

RxD / TxD P

RxD / TxD N

+5 V

0 V

62 RxD/TxD-P red cable.

66 and 67 5 V DC supply, available for external termination.

63 RxD/TxD-N green cable.

CS Control select, 5 V DC indicates transmission from the

fieldbus option.

Illustration 2: Fieldbus Cable Terminal Connections

4. Fix the cable screen to the metal base plate using cable clamp or cable tie.

5. Tie down the cable and route it with other control wires inside the unit.

Installation

Installation Guide | VLT® PROFIBUS DP MCA 101

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

Danfoss A/S

Ulsnaes 1

DK-6300 Graasten

vlt-drives.danfoss.com

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