Danfoss vacon 100 Installation guide

vacon • 1

INDEX

Document: DPD00386A

Version release date: 24.9.10

1. Safety ............................................................................................................... 2

1.1 Danger ................................................................................................................................ 2

1.2 Warnings ............................................................................................................................ 3

1.3 Earthing and earth fault protection ................................................................................... 4

2. Metasys N2 - general info................................................................................. 5

3. N2 technical data ..............................................................................................6

3.1 N2 protocol......................................................................................................................... 6

4. N2 installation ..................................................................................................7

4.1 Prepare for use .................................................................................................................. 8

5. Programming ................................................................................................. 12

5.1 N2 parameters and monitoring values (M5.7.3).............................................................. 12

5.2 N2 parameter descriptions.............................................................................................. 14

5.2.1 N2 parameters ................................................................................................................. 14

5.2.2 N2 monitoring values .......................................................................................................14

6. Communications............................................................................................. 16

6.1 Metasys N2 interface ....................................................................................................... 16

6.1.1 Analogue Input (AI)........................................................................................................... 16

6.1.2 Binary Input (BI) ............................................................................................................... 17

6.1.3 Analogue Output (AO).......................................................................................................17

6.1.4 Binary Output (BO) ........................................................................................................... 17

6.1.5 Internal Integer (ADI) ....................................................................................................... 17

6.2 N2 point map .................................................................................................................... 18

6.2.1 Analogue inputs (AI) ......................................................................................................... 18

6.2.2 Binary Inputs (BI).............................................................................................................. 19

6.2.3 Analogue Outputs (AO) ..................................................................................................... 19

6.2.4 Binary Outputs (BO).......................................................................................................... 20

6.2.5 Internal Integers (ADI)...................................................................................................... 20

7. Fault tracing ................................................................................................... 21

7.1 Typical fault conditions .................................................................................................... 21

7.2 RS-485 bus biasing...........................................................................................................21

7.3 Other fault conditions.......................................................................................................22

8. Quick setup..................................................................................................... 23

9. Annex ............................................................................................................. 24

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vacon • 2 Safety

1. SAFETY

This manual contains clearly marked cautions and warnings which are intended for your per­sonal safety and to avoid any unintentional damage to the product or connected appliances.

Please read the information included in cautions and warnings carefully.

The cautions and warnings are marked as follows:

= DANGER! Dangerous voltage

= WARNING or CAUTION

Table 1. Warning signs

1.1 Danger

The components of the power unit of Vacon 100 are live when the AC drive is
connected to mains potential. Coming into contact with this voltage is extremely
dangerous and may cause death or severe injury.

The motor terminals U, V, W and the brake resistor terminals are live when
Vacon 100 is connected to mains, even if the motor is not running.

After disconnecting the AC drive from the mains, wait until the indicators on the
keypad go out (if no keypad is attached see the indicators on the cover). Wait 5
more minutes before doing any work on the connections of Vacon100. Do not
open the cover before this time has expired. After expiration of this time, use a
measuring equipment to absolutely ensure that no

ensure absence of voltage before starting any electrical work!

The control I/O-terminals are isolated from the mains potential. However, the
relay outputs and other I/O-terminals may have a dangerous control voltage
present even when Vacon 100 is disconnected from mains.

Before connecting the AC drive to mains make sure that the front and cable cov­ers of Vacon 100 are closed.

During a ramp stop (see the Application Manual), the motor is still generating
voltage to the drive. Therefore, do not touch the components of the AC drive
before the motor has completely stopped. Wait until the indicators on the keypad
go out (if no keypad is attached see the indicators on the cover). Wait additional 5
minutes before starting any work on the drive.

voltage is present.

Always

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Safety vacon • 3

1.2 Warnings

Vacon 100 AC drive is meant for fixed installations only.

Do not perform any measurements when the AC drive is connected to the mains.

The earth leakage current of Vacon 100 AC drives exceeds 3.5mA AC. According
to standard EN61800-5-1, a reinforced protective ground connection must be
ensured. See chapter 1.3.

If the AC drive is used as a part of a machine, the machine manufacturer is
responsible for providing the machine with a supply disconnecting device (EN
60204-1).

Only spare parts delivered by Vacon can be used.

At power-up, power brake or fault reset the motor will start immediately if the
start signal is active, unless the pulse co
Futhermore, the I/O functionalities (including start inputs) may change if param­eters, applications or software are changed.Disconnect, therefore, the motor if an
unexpected start can cause danger.

ntrol for

Start/Stop logic has been selected

.

The motor starts automatically after automatic fault reset if the auto restart
function is activated. See the Application Manual for more detailed information.

Prior to measurements on the motor or the motor cable, disconnect the motor
cable from the AC drive.

Do not touch the components on the circuit boards. Static voltage discharge may
damage the components.

Check that the EMC level of the AC drive corresponds to the requirements of your
supply network.

NOTE! You can download the English and French product manuals with applicable safety,
warning and caution information from www.vacon.com/downloads

REMARQUE Vous pouvez télécharger les versions anglaise et française des manuels produit
contenant l’ensemble des informations de sécurité, avertissements et mises en garde
applicables sur le site www.vacon.com/downloads

.

.

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1

vacon • 4 Safety

1.3 Earthing and earth fault protection

CAUTION!

The Vacon 100 AC drive must always be earthed with an earthing conductor connected to the
earthing terminal marked with .

The touch current of Vacon 100 exceeds 3.5mA AC. According to EN61800-5-1, one or more of
the following conditions for the associated protective circuit shall be satisfied:

A fixed connection and:

a) the protective earthing conductor shall have a cross-sectional area of at least 10 mm2

Cu or 16 mm2 Al.

or

b) an automatic disconnection of the supply in case of discontinuity of the protective

earthing conductor.

or

c) provision of an additional terminal for a second protective earthing conductor of the

same cross-sectional area as the original protective earthing conductor.

Cross-sectional area of phase conductors

2

]

[mm

S  16

S 35

16 

S

35 <

The values above are valid only if the protective earthing conductor is made of the same metal as
the phase conductors. If this is not so, the cross-sectional area of the protective earthing con­ductor shall be determined in a manner which produces a conductance equivalent to that which
results from the application of this table.

Table 2. Protective earthing conductor cross-section

Minimum cross-sectional area of the cor-

responding protective earthing conductor

2

]

[mm

S

16

S/2

The cross-sectional area of every protective earthing conductor which does not form a part of
the supply cable or cable enclosure shall, in any case, be not less than:

2

-5mm

-4mm

if mechanical protection is provided or

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if mechanical protection is not provided. For cord-connected equipment, provi­sions shall be made so that the protective earthing conductor in the cord shall, in the
case of failure of the strain-relief mechanism, be the last conductor to be interrupted.

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However, always follow the local regulations for the minimum size of the protective earthing
conductor.

NOTE: Due to the high capacitive currents present in the AC drive, fault current protective

switches may not function properly.

Do not perform any voltage withstand tests on any part of Vacon 100. There is a
certain procedure according to which the tests shall be performed. Ignoring this
procedure may result in damaged product.

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Metasys N2 - general info vacon • 5

2. METASYS N2 - GENERAL INFO

The N2 communications protocol is used by Johnson Controls and others to connect terminal
unit controllers to supervisory controllers. It is open to any manufacturer and based upon a
simple ASCII protocol widely used in the process control industry.

The physical characteristics of the N2 bus are three wire RS-485 with a maximum of 100 de­vices over a 4,000 foot distance running at 9,600 bps. Logically, the N2 is a master-slave pro­tocol, the supervisory controller normally being the master. Data is partitioned into common
HVAC control objects, such as analogue input, analogue output, binary input and binary output.
N2 messaging supports the reading, writing and overriding of these points. Additionally, there
are messages defined to perform uploads and downloads of devices as well as direct memory
reads and writes.

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vacon • 6 N2 technical data

3. N2 TECHNICAL DATA

3.1 N2 protocol

Interface RS-485
Data transfer method RS-485 MS/TP, half-duplex

STP (Shielded Twisted Pair), type Belden
9841 or similar

2.5 mm

As described in “Metasys N2 Open Sys­tem Protocol Specification”

Table 3.

2

Connections and
communications

Transfer cable

Connector
Electrical isolation Functional

Metasys N2

Baud rate 9600 baud
Addresses 1 to 255

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N2 installation vacon • 7

DANGER

4. N2 INSTALLATION

1

Open the cover of the AC drive.

The relay outputs and other I/O-terminals may have a dangerous control voltage
present even when Vacon 100 is disconnected from mains.

2

Figure 1.

Locate the components that you will need on the AC drive to connect and run the
N2 cables.

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