WEG CFW11 User guide

ENC1 and ENC2 Board

Tarjeta ENC1 y ENC2

Cartão ENC1 e ENC2

Installation, Conguration Guía de Instalación, Guia de Instalação,

and Operation Guide Conguración y Operación Conguração e Operação

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English

Installation, Configuration and Operation Guide

EXPANSION BOARD ENC-01/ENC-02

l. SAFETY INSTRUCTIONS

All the safety procedures described in the CFW11 Inverter Manual must be

followed.

ll. GENERAL INFORMATION

This guide gives instructions for installing, configuration and operation of the

optional ENC-01 and ENC-02 modules. These modules are targeted to the reading

of the CFW11 encoder signals.

The ENC-01 module has an additional output for repeating the encoder sig-

nals.

lll. PACKAGE CONTENTS

- Accessory module in anti-static package.

- Installation, configuration and operation guide.

- Grounding screw.

1. MODULE CFW11-ENC-01/ CFW11-ENC-02 INSTALLATION

The optional board modules are installed directly into slots on the CFW11 control

module.

Figure 1: Identification of slots of the optional modules

- slot 1: white

- slot 2: yellow

- slot 3: green

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To fix the encoder and prepare the connection cable of the electric signals, follow

the instructions of item 3.

For the correct installation of modules ENC-01 and ENC-02, follow the steps

below:

Step 1: With the inverter de-energized, remove the front cover of the CFW11

(figure 2);

Step 2: Carefully plug-in the module into slot 2 (figure 3(a));

Step 3: Place and tighten the grounding screw and fixture of the module

(figure 3(b));

Step 4: Set the module switches as shown in table 1;

Step 5: Connect the encoder cables to connector XC4 of modules ENC-01 and

ENC-02.

Figure 2: Removal of front cover

Figure 3: Installation of optional module into slot

b

c

a

b

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Figure 4 : Characteristics and signals of cables and connectors

2. CONFIGURATIONS

Table 1: Module ENC-01 and ENC-02 configuration switches

Switches Function Position Operation Observations

S1:1

External source voltage for

the encoder repeater circuit

(ENC-01-only)

ON

5V (By-pass internal

voltage regulator)

-

OFF

(*)

7V to 24V (internal vol-

tage regulator active)

-

S1:2 Not connected internally - - -

S2:1

Failure detection on signals

Z, Z (F079)

ON

(*)

Failure detection

enable

-

OFF

Failure detection

disabled

Turn OFF when

the encoder does

not have signals Z

and Z

S2:2

Failure detection on

encoder signals A, A, B, B,

Z, Z (F079)

ON

Failure detection

disabled

Does not depend

on the S2:1 status

OFF

(*)

Failure detection

enable

-

S3:1 Encoder voltage supply

ON 5Vdc

Set according to

the voltage of the

encoder used

OFF

(*)

12Vdc

S3:2 Not connected internally - - -

S1:1 and

S1:2

S2:1 and

S2:2

S3:1 and

S3:2

(*) Factory standard.

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3. ENCODER INCREMENTAL

The signal specifications for the inputs of the encoder incremental of modules

ENC-01 and ENC-02, are effective for Dynapar encoder model HS35B. To use

another type of encoder check if the pins and signal sequence are equivalent to the

shown model.

3.1. Encoder Assembly

It is important to follow some recommendations during assembly of the encoder

on the motor:

1) The encoder must be coupled directly to the shaft of the motor without torsional

flexibility;

2) Both the shaft and metal frame of the encoder must be electrically isolated

from the motor (minimum distance 3mm);

3) Flexible and high quality coupling must be used to avoid mechanic oscillation

or backlash.

Figures 5 and 6 show encoder assembly of self-ventilated and forced ventilated

motors.

Encoder protection cover:

Figure 5: Dynapar HS35B encoder assembly on

self-ventilated motor

Figure 6: Dynapar HS35B encoder assembly on

forced ventilated motor

Encoder protection cover

Flexible steel suporte/rack and encoder

fixture components

Encoder HS35B

Encoder protection cover

fixture on the motor deflector

Encoder HS35B

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3.2 Encoder Technical Specifications

Table 2: Encoder technical specifications

Characteristics Specifications

Power supply 5V or 12V

Channels

2 channels in quadrature (90º) + zero pulses with complementary outputs

(differentials)

Signals

A, A, B, B, Z and Z

Available for 2 channels: A, A, B, B (figure 8)

Output circuit Linedrive or Push-pull type = maximum 12V level

Isolation Electronic circuit isolated from the encoder frame

Pulses Recommended number of pulses per rotation =1024ppr

Frequency Maximum allowed = 100kHz

Table 3: Technical specifications of the encoder cable

Characteristics Specifications

Type of cable Balanced cable shield (for differential signals operation)

Connection

The cable shield must be connected to ground through devices on control shield plate

(see figure 7)

Distance ≥ 25cm of other wiring

Isolation Use metal conduit

Length Maximum = 100m

XC4

1

2 Input

Input

3

4

5

6

7 Ground -

8

Output

9

10

11

12

13

14

15

16

17

ENC-01

only

18

Directional Inputs:

Common mode

maximum

voltage: 7V

Maximum differential

voltage: 24V

Vectorial input power

supply of encoder

repeater circuit

5V or 7V to 15V,

(S1:1) current

capacity 150mA

Repeated encoder

signals

10mA Maximum

control

Encoder power

supply

5V or 12V (S3:1)

Protected by short

circuit

Maximum current

500mA

1

2

3

4

5

6

7

8

9

11

Connector Encoder

A A

H

B B

I

C Z

J

D +VE

F COM

E NC

G Ground

A

B

Z

Power

Supply

7 or 24V -

5V or +

Z

B

A

Red

Blue

Yellow

Green

Gray

Pink

White

Brown

Cable

A

B

Z

Shield

I/O

Output

Input

A

B

Z

+V

COM

A

B

Z

+V1

COM1

A

B

Z

A

B

Z

NC NC

Figure 7: Cable and connector characteristics and signals

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Diagram to signals

Figure 8: Standard phase of the encoder signals

4. OPERATION

Step 1: After installing the module, energize the inverter;

Step 2: Check if the module has been correctly identified by the control:

P0027=xxC2;

Step 3: Program parameter P0202 (Type of control) = 4 (Vectorial with encoder).

This way, the inverter will operate with speed feedback for the encoder in-

cremental. The number of pulses per encoder rotation must be programmed

in P0405.

NOTE!

See the CFW11 Manual for more details on the Vectorial Control.

Signal

A

B

Time

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