ABB OHDI-01 Manuale utente

DriveIT Low Voltage AC Drives

User’s Manual

115/230 VAC Digital Input Module

OHDI-01

OHD4

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2 115/230 VAC Digital Input Module – OHDI-01

Safety

WARNING! All electrical installation and maintenance work on the

drive should be carried out by qualified electricians only.

WARNING! The drive and adjoining equipment must be properly

grounded.

WARNING! Do not attempt any work on a powered drive. After

switching off the mains, always allow the intermediate circuit

capacitors 5 minutes to discharge before working on the drive, the

motor or the motor cable. It is good practice to check (with a

voltage indicating instrument) that the drive is in fact discharged

before beginning work.

WARNING! The motor cable terminals of the drive are at a

dangerously high voltage when mains power is applied,

regardless of motor operation.

WARNING! There can be dangerous voltages inside the drive from

external control circuits even when the drive mains power is shut

off. Exercise appropriate care when working on the unit.

Neglecting these instructions can cause physical injury or death.

Use of Warnings and Notes

There are two types of safety instructions throughout this manual:

• Notes draw attention to a particular condition or fact, or give

information on a subject.

• Warnings caution you about conditions which can result in serious

injury or death and/or damage to the equipment. They also tell you

how to avoid the danger. The warning symbols are used as follows:

Dangerous voltage warning warns of high voltage which can

cause physical injury and/or damage to the equipment.

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115/230 VAC Digital Input Module – OHDI-01 3

Table of Contents

Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Use of Warnings and Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Preparing for Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Installing the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Technical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

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4 115/230 VAC Digital Input Module – OHDI-01

Installation

Preparing for Installation

The OHDI-01 Module

The 115/230 VAC Digital Input module (OHDI) is an interface for

connecting six high voltage digital inputs to an ACS550, ACH550 or

ACS800 drive. The OHDI accepts 115 or 230 VAC inputs and converts

them to 24 VDC for inputs to the drive. The input can be either of the

following:

• Up to six 115 VAC inputs

• Up to three 230 VAC inputs

Module Layout

Compatibility

The OHDI-01 is compatible with all ACS550, ACH550 and ACS800

drives.

24 VDC 115/230 VAC

OHD4

Outputs (6) Digital Inputs

High Voltage Side

Low Voltage Side

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115/230 VAC Digital Input Module – OHDI-01 5

Installation

Installing the Module

Delivery Check

The option package contains:

• OHDI-01 module

• Two mounting screws

• This manual

Mounting

WARNING! Follow the safety instructions given in this guide and in the

drive manual: ACS800 Hardware Manual, ACS550 User’s Manual or

ACH550 User’s Manual.

To mount the OHDI-01

module:

1. If not already off,

remove mains power

from the drive.

2. Remove the drive

cover. (See

instructions in the

drive User’s Manual.)

3. Position the OHDI-01

module on the front of

the drive:

• ACS800: at

Optional Module 1

or Optional

Module 2.

• ACS550/ACH550:

at SLOT 2.

4. Attach using the two mounting screws provided.

Screws

OHD6

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6 115/230 VAC Digital Input Module – OHDI-01

Installation

Wiring

Connect 115/230 VAC inputs to the OHDI high voltage side. Connect

the outputs from the OHDI low voltage side to the drive digital inputs.

For wiring, use:

• Appropriate voltage rated wiring (115 or 230 VAC) for the inputs to

the high voltage side.

• 0.5 to 1.5 mm2(20 to 16 AWG) cable with 24 V rating for connections

between the low voltage side and the drive terminals.

To determine the proper routing for wiring, refer to the following

sources:

• Either the "Terminal Designations – 115 VAC" section, or the

"Terminal Designations – 230 VAC" section below for the OHDI-01

module’s terminal designations.

• The drive’s terminal designations in the appropriate manual:

- ACS550 User’s Manual

- ACH550 User’s Manual

- ACS800 Hardware Manual

• The table below for alternatives.

• The diagram below for an overview of the connections.

• The illustrations below for a view of typical wiring connections.

Alternatives:

Situation Wiring

All digital inputs are from 115 or

230 VAC sources. Connect inputs according to the diagram

below. Use as many as required (up to 3

230 VAC inputs or up to 6 115 VAC inputs).

Digital inputs are from a mixture of

low voltage (24 VDC) sources and

high voltage (115 or 230 VAC)

sources.

Route high voltage digital inputs through OHDI

module.

Route low voltage digital inputs directly to X1

(on the ACS550/ACH550) or to X22 (on the

ACS800).

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115/230 VAC Digital Input Module – OHDI-01 7

Installation

Connections overview:

The following illustration shows a sample of typical wiring.

OHDI-01

Module

14 (115

8 (HDI1)

9 (HDI2)

10 (HDI3)

11 (HDI4)

12 (HDI5)

13 (HDI6)

115 VAC

Source

7 (LDI6)

1 (24V)

2 (LDI1)

3 (LDI2)

4 (LDI3)

5 (LDI4)

6 (LDI5)

ACH550

11 (GND)

10 (+24V)

18 (DI6)

12 (DCOM)

13 (DI1)

14 (DI2)

15 (DI3)

16 (DI4)

17 (DI5)

Normal (Sourcing)

Configuration ACS800

X22

6 (DI6)

1 (DI1)

2 (DI2)

3 (DI3)

4 (DI4)

5 (DI5)

7 (24V)

ACS550/

VAC COM)

230 VAC Source

230 VAC 115

VAC

Insert screwdriver in slot

above wire clip to open clip.

Drive

VAC

Digital

Inputs

Digital

Inputs

24 V wires

between

OHDI and

drive

OHD2

OHD3

115/230

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8 115/230 VAC Digital Input Module – OHDI-01

Installation

Terminal Designations – 115 VAC

Use the following table for reference when wiring terminals.

Identification Typical Connection

Low Voltage Side Digital Input Terminal

ACS550 / ACH550 ACS800

1 24 V 10 (+24V) 7 (24V)

2LDI1 13 (DI1) 1 (DI1)

3LDI2 14 (DI2) 2 (DI2)

4LDI3 15 (DI3) 3 (DI3)

5LDI4 16 (DI4) 4 (DI4)

6LDI5 17 (DI5) 5 (DI5)

7LDI6 18 (DI6) 6 (DI6)

High Voltage Side External Digital Input Source (115 VAC)

8HDI1

9HDI2

10 HDI3

11 HDI4

12 HDI5

13 HDI6

14 115 VAC Common 115 VAC

Source

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115/230 VAC Digital Input Module – OHDI-01 9

Installation

Terminal Designations – 230 VAC

Use the following table for reference when wiring terminals.

Replace Drive Cover

1. Refer to the drive’s User’s manual and replace the drive’s cover.

Apply Power

1. Turn on the mains power to the drive.

2. Refer to the Start-Up section in the drive’s User’s Manual for

configuration of digital inputs.

Identification Typical Connection

Low Voltage Side Digital Input Terminal

ACS550 / ACH550 ACS800

1 24 V 10 (+24V) 7 (24V)

2LDI113(DI1) 1 (DI1)

3 N/A 14 (DI2) 2 (DI2)

4LDI315(DI3) 3 (DI3)

5 N/A 16 (DI4) 4 (DI4)

6LDI517(DI5) 5 (DI5)

7 N/A 18 (DI6) 6 (DI6)

High Voltage Side External Digital Input Source (230 VAC)

8HDI1

9HDI2

10 HDI3

11 HDI4

12 HDI5

13 HDI6

230 VAC Source

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10 115/230 VAC Digital Input Module – OHDI-01

Technical Data

Dimensions

Module dimensions

are:

Enclosure

Degree of Protection

The module is mounted inside the drive enclosure. Refer to the drive’s

rating.

Ambient Conditions

The module is mounted inside the drive enclosure. Refer to the drive’s

requirements.

Connectors

Connectors on the module:

• Low voltage side: 6-pin, spring cage, non-detachable terminal block

that accepts wire connectors up to 1.5 mm2 (16 AWG).

• High voltage side: 6-pin, spring cage, non-detachable terminal block

that accepts wire connectors up to 2.5 mm2 (14 AWG).

Ref. mm in

H35 1.4

L95 3.7

W62 2.4

OHD5

OHD7

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