Danfoss VLT HVAC User manual

Contents

1. Safety

Safety Instructions 3

General Warning 4

Before Commencing Repair Work 4

Special conditions 4

Avoid unintended Start. 6

Safe Stop of the Adjustable Frequency Drive 7

IT Line 8

2. Introduction

Type Code String 12

3. Mechanical installation

Before starting 15

How to install 17

4. Electrical installation

How to connect 27

Line power wiring overview 30

How to connect the motor - foreword 35

Motor wiring overview 36

Motor connection for C1 and C2 39

How to Test Motor and Direction of Rotation. 42

5. How to operate the adjustable frequency drive

Three means of operation 49

How to operate the Graphical LCP (GLCP) 49

How to operate numeric LCP (NLCP) 55

Tips and tricks 60

6. How to program the adjustable frequency drive

How to program 63

Parameter list 99

0-** Operation and Display 100

1-** Load/Motor 102

2-** Brakes 103

3-** Reference/Ramps 104

4-** Limits/Warnings 105

VLT

HVAC Drive Instruction Manual Contents

MG.11.A4.22 - VLT®is a registered Danfoss trademark

5-** Digital In/Out 106

6-** Analog In/Out 108

8-** Comm. and Options 110

9-** Profibus 111

10-**CAN Ser. Com. Bus 112

11-** LonWorks 113

13-** Smart Logic 114

14-** Special Functions 115

15-** FC Information 116

16-** Data Readouts 118

18-** Data Readouts 2 120

20-** FC Closed-loop 121

21-** Ext. Closed-loop 122

22-** Application Functions 124

23-** Timed Actions 126

25-** Cascade Controller 127

26-** Analog I/O Option MCB 109 129

7. Troubleshooting

131

133

8. Specifications

139

Specifications 139

Special Conditions 149

Purpose of derating 149

Automatic adaptations to ensure performance 151

Index

152

Contents VLT

HVAC Drive Instruction Manual

MG.11.A4.22 - VLT®is a registered Danfoss trademark

1. Safety

1.1.1. Symbols

Symbols used in this Instruction Manual.

NOTE

Indicates something to be noted by the reader.

Indicates a general warning.

Indicates a high voltage warning.

＊Indicates a default setting

1.1.2. High Voltage Warning

The voltage of the adjustable frequency drive is dangerous whenever it is connected

to AC line power. Incorrect installation of the motor or adjustable frequency drive

may cause damage to the equipment, serious injury or death. Consequently, it is

essential to comply with the instructions in this manual as well as local and national

rules and safety regulations.

1.1.3. Safety Instructions

• Make sure the adjustable frequency drive is properly grounded.

• Do not remove line power connections, motor connections or other power connections

while the adjustable frequency drive is connected to line power.

• Protect users against supply voltage.

• Protect the motor against overloading in accordance with national and local regulations.

• Motor overload protection is included in the default settings. Parameter 1-90

Motor ther-

mal protection

is set to value

ETR trip.

For the North American market: ETR functions

provide class 20 motor overload protection, in accordance with NEC.

• The ground leakage current exceeds 3.5 mA.

• The [OFF] key is not a safety switch. It does not disconnect the adjustable frequency

drive from the line power.

VLT

HVAC Drive Instruction Manual 1. Safety

MG.11.A4.22 - VLT®is a registered Danfoss trademark

1.1.4. General Warning

Warning:

Touching the electrical parts may be fatal - even after the equipment has been dis-

connected from line power.

Also make sure that other voltage inputs have been disconnected (linkage of DC

intermediate circuit), as well as the motor connection for kinetic backup.

Before touching any potentially live parts of the VLT

HVAC Drive FC 100, wait at

least as long as follows:

200-240 V, 1.5-5 hp [1.1 - 3.7 kW]: wait at least 4 minutes.

200-240 V, 7.5-60 hp [5.5 - 45 kW]: wait at least 15 minutes.

380-480 V, 1.5-10 hp [1.1 - 7.5 kW]: wait at least 4 minutes.

380-480 V, 15-125 hp [11 - 90 kW]: wait at least 15 minutes.

525-600 V, 1.5-10 hp [1.1 - 7.5 kW]: wait at least 4 minutes.

A shorter time is allowed only if indicated on the nameplate for the specific unit.

Leakage Current

The ground leakage current from the VLT

HVAC Drive FC 100 exceeds 3.5 mA.

According to IEC 61800-5-1, a reinforced protective ground connection must be en-

sured by means of: a min. 0.015 in² [10 mm²] Cu or 0.025 in² [16 mm²] Al PE wire

or an additional PE wire, with the same cable cross-section as the line power wiring,

must be terminated separately.

Residual Current Device

This product can cause DC current in the protective conductor. If a residual current

device (RCD) is used for extra protection, only an RCD of Type B (time delayed) may

be used on the supply side of this product. See also RCD Application Note MN.90.GX.

02.

Protective grounding of the VLT

HVAC Drive FC 100 and the use of RCDs must

always follow national and local regulations.

1.1.5. Before Commencing Repair Work

1. Disconnect the adjustable frequency drive from the line power.

2. Disconnect DC bus terminals 88 and 89.

3. Wait at least as long as the time mentioned in section 2.1.2.

4. Remove motor cable.

1.1.6. Special conditions

Electrical ratings:

The rating indicated on the nameplate of the adjustable frequency drive is based on a typical 3-

phase line power supply within the specified voltage, current and temperature ranges, which are

expected to be used in most applications.

The adjustable frequency drives also support other special applications, which affect the electrical

ratings of the adjustable frequency drive.

Special conditions that affect the electrical ratings might be:

1. Safety VLT

HVAC Drive Instruction Manual

MG.11.A4.22 - VLT®is a registered Danfoss trademark

Single phase applications

High temperature applications which require de-rating of the electrical ratings

Marine applications with more severe environmental conditions

Other applications might also affect the electrical ratings.

Consult the relevant clauses in these instructions and in the

VLT® HVAC Drive Design Guide, MG.

11Bx.yy

for information about the electrical ratings.

Installation requirements:

The overall electrical safety of the adjustable frequency drive requires special installation consid-

erations regarding:

Fuses and circuit breakers for overcurrent and short-circuit protection

Selection of power cables (line, motor, brake, load sharing and relay)

Grid configuration (IT,TN, grounded leg, etc.)

Safety of low voltage ports (PELV conditions).

Consult the relevant clauses in these instructions and in the

VLT® HVAC Drive Design Guide

for

information about the installation requirements.

VLT

HVAC Drive Instruction Manual 1. Safety

MG.11.A4.22 - VLT®is a registered Danfoss trademark

1.1.7. Caution

Caution

The adjustable frequency drive DC link capacitors remain charged after power has been dis-

connected. To avoid the risk of electrical shock, disconnect the adjustable frequency drive

from line power before performing maintenance procedures. Wait at least as long as follows

before servicing the adjustable frequency drive:

Voltage Min. Waiting Time

4 min. 15 min.

200 - 240 V 1.5-5 hp [1.1-3.7 kW] 7.5-60 hp [5.5-45 kW]

380 - 480 V 1.5-10 hp [1.1-7.5 kW] 15-125 hp [11-90 kW]

525 - 600 V 1.5-10 hp [1.1-7.5 kW]

Be aware that there may be high voltage on the DC link even when the LEDs are turned off.

1.1.8. Installation at High Altitudes (PELV)

At altitudes above 6,600 feet [2 km], please contact Danfoss Drives regarding

PELV.

1.1.9. Avoid unintended Start.

While the adjustable frequency drive is connected to line power, the motor can be started/stopped

using digital commands, bus commands, references or via the Local Control Panel.

• Disconnect the adjustable frequency drive from line power whenever personal safety

considerations make it necessary to avoid unintended start.

• To avoid unintended start, always activate the [OFF] key before changing parameters.

• Unless terminal 37 is turned off, an electronic fault, temporary overload, a fault in the

line supply or lost motor connection may cause a stopped motor to start.

1. Safety VLT

HVAC Drive Instruction Manual

MG.11.A4.22 - VLT®is a registered Danfoss trademark

1.1.10. Safe Stop of the Adjustable Frequency Drive

For versions fitted with a safe stop terminal 37 input, the adjustable frequency drive can perform

the safety function

Safe Torque Off

(As defined by draft CD IEC 61800-5-2) or

Stop Category 0

(as defined in EN 60204-1).

It is designed and deemed suitable for the requirements of Safety Category 3 in EN 954-1. This

functionality is called Safe Stop. Prior to integrating and using safe stop in an installation, a thor-

ough risk analysis must be carried out on the installation in order to determine whether the safe

stop functionality and safety category are appropriate and sufficient. In order to install and use

the Safe Stop function in accordance with the requirements of Safety Category 3 in EN 954-1, the

related information and instructions of the VLT HVAC Drive Design Guide MG.11.BX.YY must be

followed! The information and instructions contained in the Instruction Manual are not sufficient

for a correct and safe use of the safe stop functionality!

VLT

HVAC Drive Instruction Manual 1. Safety

MG.11.A4.22 - VLT®is a registered Danfoss trademark

130BA491

Illustration 1.1: This certificate also covers FC 102 and FC 202!

1.1.11. IT Line

IT Line

Do not connect 400 V adjustable frequency drives with RFI filters to line supplies

with a voltage between phase and ground of more than 440 V.

For IT lines and delta ground (grounded leg), line voltage may exceed 440 V be-

tween phase and ground.

Par. 14-50

RFI 1

can be used to disconnect the internal RFI capacitors from the RFI filter to ground.

If this is done, it will reduce the RFI performance to A2 level.

1. Safety VLT

HVAC Drive Instruction Manual

MG.11.A4.22 - VLT®is a registered Danfoss trademark

1.1.12. Software Version and Approvals: VLT HVAC Drive

VLT HVAC Drive

Instruction Manual

Software version: 2.0X

This Instruction Manual can be used for all VLT HVAC Drive adjustable frequency drives with

software version 2.0X.

The software version number can be seen in parameter 15-43.

1.1.13. Disposal Instructions

Equipment containing electrical components may not be disposed of

together with domestic waste.

It must be separately collected with electrical and electronic waste

according to local and currently valid legislation.

VLT

HVAC Drive Instruction Manual 1. Safety

MG.11.A4.22 - VLT®is a registered Danfoss trademark

2. Introduction VLT

HVAC Drive Instruction Manual

MG.11.A4.22 - VLT®is a registered Danfoss trademark

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