Johnson Controls VFD66 Series User manual

Brand: Johnson Controls

Model: VFD66 Series

Type: User manual

User Guide

AC variable speed drive for

3 phase induction motors

from 0.75kW to 2.2kW,

1hp to 3hp

Part Number: 24-10511-90

Issue: 2

VFD66 Drive

General Information

The manufacturer accepts no liability for any consequences resulting from inappropriate, negligent

or incorrect installation or adjustment of the optional parameters of the equipment or from

mismatching the variable speed drive with the motor.

The contents of this guide are believed to be correct at the time of printing. In the interests of

commitment to a policy of continuous development and improvement, the manufacturer reserves the

right to change the specification of the product or its performance, or the content of the guide without

notice.

means, electrical or mechanical including, photocopying, recording or by an information storage or

retrieval system, without permission in writing from the publisher.

Drive software version

This product is supplied with the latest version of user-interface and machine control software. If this

product is to be used in a new or existing system with other drives, there may be some differences

between their software and the software in this product. These differences may cause the product

to function differently. If there is any doubt, please contact Johnson Controls.

Issue: 2

Software: 01.01.00

VFD66 User Guide

Issue Number: 2 www.johnsoncontrols.com

Contents

1 Safety information ...............................................................6

1.1 Warnings, cautions and notes .................................................................6

1.2 Electrical safety - general warning ..........................................................6

1.3 System design and safety of personnel ..................................................6

1.4 Environmental limits ................................................................................6

1.5 Access .....................................................................................................7

1.6 Motor .......................................................................................................7

1.7 Adjusting parameters ..............................................................................7

1.8 Electrical installation ................................................................................7

2 Rating data ...........................................................................9

2.1 Supply types ............................................................................................9

2.2 Supply imbalance ....................................................................................9

2.3 Maximum motor cable length ..................................................................9

2.4 Multi-motor capability ..............................................................................9

3 Mechanical installation .....................................................10

3.1 Accessing the interior ............................................................................11

4 Electrical installation ........................................................12

4.1 VFD66 drive ..........................................................................................12

4.2 Ground leakage .....................................................................................13

4.3 EMC ......................................................................................................14

4.4 Control terminals I/O specification .........................................................18

5 De-rating ............................................................................21

5.1 De-rating information .............................................................................21

5.2 Altitude de-rating ...................................................................................22

6 Keypad and display ..........................................................23

6.1 Programming keys ................................................................................23

6.2 Control keys ..........................................................................................23

6.3 Selecting and changing parameters ......................................................24

6.4 Saving parameters ................................................................................25

6.5 Parameter access .................................................................................25

6.6 Security codes .......................................................................................25

6.7 Setting drive back to default values .......................................................26

7 Parameters .........................................................................27

7.1 Parameter descriptions - level 1 ............................................................27

7.2 Parameter descriptions - level 2 ............................................................32

7.3 Parameter descriptions - level 3 ............................................................35

7.4 Diagnostic parameters ..........................................................................35

8 Diagnostics ........................................................................36

8.1 Fault clearing .........................................................................................37

8.2 Repairs and replacements ....................................................................37

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9 Technical specifications .................................................. 38

10 UL listing information ....................................................... 39

10.1 UL information .......................................................................................39

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EC Declaration of Conformity

Certify and declare under our sole responsibility that the following:

conforms with the essential requirements of the following directives:

The following harmonised standards have been applied:

EN 61000-3-2:2006: Applicable where input current <16A.

No limits apply for professional equipment where input power >1kW.

Therefore this product complies with the essential requirements and provisions of the Directives.

The Technical documentation can be requested by the surveillance Authorities at the following address:

Name and position of person authorised by the manufacturer:

PDM Name: EU-DOC-VFD66-Variable Frequency Drive.doc

Manufacturer: Johnson Controls Inc.

Address:

4620 Olympic Blvd

Erlanger KY 41018-0000

Country: USA

Phone number: 859-283-1384

Description: Variable Frequency Drive for 3 phase induction motors

Product name: VFD66

Brand: Johnson Controls / Penn

Identification

VFD66 followed by A,B,C,D,E,F,J or K followed by two letters. All can be followed by up

to three additional numbers followed by up to two additional letters.

EMC Directive 2004/108/EC

Low Voltage Directive 2006/95/EC

EN 61800-5-1:2007

EN 61800-3:2004

EN 61000-6-2:2005

EN 61000-6-4:2007

EN 61000-3-2:2006

EN 61000-3-3:2008

Company:

Johnson Controls Inc.

Att: Environment & Legislation

Address, City: Christian X’s Vej 201, 8270 Hoejbjerg

Country: Denmark

Phone number: + 45 8736 7000

Date: 1/21/2011

George Rudich

Engineering Manager

Johnson Controls Inc

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1 Safety information

1.1 Warnings, cautions and notes

1.2 Electrical safety - general warning

The voltages used in the drive can cause severe electrical shock and/or burns, and

could be lethal. Extreme care is necessary at all times when working with or adjacent to

the drive.

Specific warnings are given at the relevant places in this guide.

1.3 System design and safety of personnel

The drive is intended as a component for professional incorporation into complete

equipment or system. If installed incorrectly, the drive may present a safety hazard.

The drive uses high voltages and currents, carries a high level of stored electrical

energy, and is used to control equipment which can cause injury.

System design, installation, commissioning / start up and maintenance must be carried

out by personnel who have the necessary training and experience. They must read this

safety information and this guide carefully.

The STOP and START controls or electrical inputs of the drive must not be relied

upon to ensure safety of personnel. They do not isolate dangerous voltages from

the output of the drive. The supply must be disconnected by an approved

electrical isolation device before gaining access to the electrical connections.

The drive is not intended to be used for safety-related functions.

Careful consideration must be given to the function of the drive which might result in a

hazard, either through its intended behavior or through incorrect operation due to a

fault. In any application where a malfunction of the drive or its control system could lead

to or allow damage, loss or injury, a risk analysis must be carried out, and where

necessary, further measures taken to reduce the risk.

1.4 Environmental limits

Instructions within the supplied data regarding transport, storage, installation and the

use of the drive must be complied with, including the specified environmental limits.

A Warning contains information, which is essential for avoiding a safety hazard.

WARNING

A Caution contains information, which is necessary for avoiding a risk of damage to the

product or other equipment.

CAUT ION

A Note contains information, which helps to ensure correct operation of the product.

NOTE

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1.5 Access

Access must be restricted to authorized personnel only. Safety regulations which apply

at the place of use must be complied with. The IP (Ingress Protection) rating of the drive

is installation dependant.

1.6 Motor

Ensure the motor is installed in accordance with the manufacturer's recommendations.

Ensure the motor shaft is not exposed.

Standard squirrel cage induction motors are designed for single speed operation. If it is

intended to use the capability of a drive to run a motor at speeds above its designed

maximum, it is strongly recommended that the manufacturer is consulted first.

Low speeds may cause the motor to overheat because the cooling fan becomes less

effective. If necessary, an electric force vent fan should be used.

1.7 Adjusting parameters

Some parameters have a profound effect on the operation of the drive. They must not

be altered without careful consideration of the impact on the controlled system.

Measures must be taken to prevent unwanted changes due to error or tampering.

1.8 Electrical installation

1.8.1 Electric shock risk

The voltages present in the following locations can cause severe electric shock and may

be lethal:

• AC supply cables and connections

• Output cables and connections

• Many internal parts of the drive

Unless otherwise indicated, control terminals are single insulated and must not be

touched.

1.8.2 Isolation device

The AC supply must be disconnected from the drive using an approved isolation device

before any cover is removed from the drive or before any servicing work is performed.

1.8.3 STOP function

The STOP function does not remove dangerous voltages from the drive or the motor.

1.8.4 Ground leakage current

The drive is supplied with an internal EMC filter capacitor installed. If the input voltage to

the drive is supplied through an ELCB or RCD, these may trip due to the ground

leakage current. See section 4.3.1 Internal EMC filter on page 14 for further information

and how to disconnect the internal EMC capacitor.

The VFD66 series variable speed drives are intended to control equipment under normal

operating conditions. Where failure or malfunction of a VFD66 drive could lead to an

abnormal operating condition that could cause personal injury or damage to the

equipment or other property, other devices, (limit or safety controls) or systems (alarm or

supervisory) intended to warn of, or protect against, failure or malfunction of the VFD66

drive must be incorporated into and maintained as part of the control system.

WARNING

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Risk of thermal damage

The VFD66 control can generate and dissipate significant heat. Mount the control on a

metal, concrete, or cinderblock mounting surface. Mounting the VFD66 control on

surfaces made of wood or other heat-sensitive material may result in damage to the

mounting surface.

CAUT ION

Risk of equipment damage

Motors used with the VFD66 controls must meet certain specifications for proper

performance and operation. Motors that do not meet these specifications may be

damaged.

CAUT ION

Risk of electrical shock

The printed wiring board and its components are at AC line voltage. Direct or indirect

contact with line voltage can result in personal injury or death.

WARNING

Risk of electrical shock

The VFD66 drive remains electrically charged for a period of time after the power is

removed. To avoid possible electrical shock, wait at least 10 minutes after AC supply

power has been disconnected from the VFD66 drive before servicing the control. Failure

to wait until the VFD66 drive fully discharges could cause electrical shock, personal

injury, or death.

WARNING

Risk of equipment damage

Connect each of these items to the VFD66 drive using a separate conduit for each set

of wires:

• Line voltage supply power

• Line voltage output power to motor

• Low voltage signals from input devices

Running different voltage and frequency wires in the same conduit can create electronic

noise or harmonics, which may damage the condenser fan motors.

CAUT ION

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2Rating data

The following information describes the electrical and mechanical ratings for the range

of Johnson Controls drives.

Table 2-1 VFD66 model numbers and ratings

*With fan

Overload capacity

110% of output current for 1 minute.

Output frequency

0 to 1500Hz

Output voltage

3 phase, 0 to drive rating (240 or 480Vac maximum set by Pr 08).

2.1 Supply types

The drive is suitable for use on:

Star and Delta connected supplies

Three phase supplies with a grounded star point neutral configuration.

Three phase supplies with a line grounded delta configuration.

Ground supplies

Supplies with ground configurations TN, TN-C, and TN-S.

Floating supplies

IT supply configurations

2.2 Supply imbalance

The maximum supply imbalance: 2% negative phase sequence as per IEC 60146-1-1.

2.3 Maximum motor cable length

50m (165 ft) maximum from the motor.

2.4 Multi-motor capability

The VFD66 drive is capable of operating multiple motors at a common frequency as

long as the total current is less than or equal to the drive rating. Individual motor

protection must be provided and the output of the drive should be chain connected to

the motors. The fixed V/F mode (Pr 41 = Fd) should be used.

Model

Number

Motor

power

Supply voltage

and frequency

Output voltage

and frequency

Input

fuse

rating

Typical RMS

input

current

Rated RMS output

current (A)

kW hp A A 50°C60°C

VFD66AAA-2 0.75 1.0

3 phase 200 to

240Vac

±10%

48 to 65Hz

Three phase

0 to 240Vac

0 to 1500Hz

10 6.3 4.0 4.0

VFD66CAA-2 1.5 2.0 13 9.9 7.5 6.2

VFD66EBA-2* 2.2 3.0 16 13.1 10.6 9.0

VFD66BAA-2 0.75 1.0

3 phase 380 to

480Vac

±10%

48 to 65Hz

Three phase

0 to 480Vac

0 to 1500Hz

63.51.81.8

VFD66DAA-2 1.5 2.0 8 5.7 3.6 3.6

VFD66FAA-2 2.2 3.0 10 7.5 5.5 5.5

The output frequency can be increased by 20% during deceleration.

NOTE

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3 Mechanical installation

Figure 3-1 VFD66 drive basic dimensions

mm (7

)

190

mm (7.0in)178

mm (6.2in)158

mm (3.4in)86

mm (3.5in)89

(

)

mm (1.5in)38

Terminal cover

screw

Terminal access

cover

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Observe the following the guidelines when mounting a VFD66 drive:

• Mount the VFD66 drive on a vertical surface with the heatsink fins oriented vertically

and the conduit holes facing down.

• Provide a minimum of 4 in. (102 mm) clearance around the heatsink.

• Ensure that output power wiring between the VFD66 drive and the motor does not

exceed 50m (165 ft).

Mount the VFD66 drive in a location protected from condensation, explosive vapours,

corrosive gas, water, and dust.

3.1 Accessing the interior

Remove the terminal access cover by removing the terminal cover screw (see Figure 3-

1) to access terminal blocks, ground connections, EMC filter link and MOV link (see

Figure 4-1, Figure 4-2, Figure 4-3 and Figure 4-4).

NEMA 1 enclosure

Follow the following steps to remove the terminal cover:

1. Remove the terminal cover screw and push upwards on the front of the cover.

2. Pull outward on the top of the terminal access cover.

Enclosure

The drive is intended to be mounted in an enclosure which prevents access except by

trained and authorized personnel, and which prevents the ingress of contamination. It is

designed for use in an environment classified as pollution degree 2 in accordance with

IEC 60664-1. This means that only dry, non-conducting contamination is acceptable.

WARNING

The VFD66 drive can generate and dissipate significant heat. Mount the drive on a metal,

concrete or cinder block mounting surface. Mounting the VFD66 drive on surfaces made

of wood or other heat-sensitive material may result in damage to the mounting surface.

WARNING

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4 Electrical installation

4.1 VFD66 drive

Figure 4-1 VFD66 drive power terminal connections

Figure 4-2 VFD66 drive control connections

Optional

ground

connection

Fuses

Mains supply

Ground

connection terminals

(for power and motor ground)

TB2

L3/T

L2/S

L1/R

T1/U

T2/V

T3/W

Supply

ground

Two M5 locknuts are installed on the ground connection terminals

NOTE

A Alarm output 1

B Alarm output 2

1 +5V output

2 Analog input 1

3 Analog input 2

4 0V common

TB1

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4.2 Ground leakage

The ground leakage current depends upon the internal EMC filter being installed. The

drive is supplied with the filter installed. Instructions for removal of the internal EMC filter

are given in section 4.3.2 Removing the internal EMC filter .

With internal EMC filter installed

3 Phase 200V drives

7.8mA AC maximum at 220V, 50Hz (proportional to supply voltage and frequency).

3 Phase 200V drives

10.4mA AC maximum at 400V, 50Hz (proportional to supply voltage and frequency).

With internal EMC filter removed <1mA

4.2.1 Use of ground fault circuit interrupter (GFCI)

There are three common types of GFCI:

Type AC - detects AC fault currents

Type A - detects AC and pulsating DC fault currents (provided the DC current

reaches zero at least once every half cycle)

Type B - detects AC, pulsating DC and smooth DC fault currents

• Type AC should never be used with drives

• Type A can only be used with single phase drives

• Type B must be used with three phase drives

Fuses/MCB

The AC supply to the drive must be installed with suitable protection against overload

and short circuits. Failure to observe this requirement will cause risk of fire.

WARNING

The drive must be grounded by a conductor sufficient to carry the prospective fault

current in the event of a fault. See also the warning in section 4.2 Ground leakage

relating to ground leakage current.

WARNING

Model Maximum power terminal screw torque

VFD66 0.5 Nm / 4.4 lb in

The above leakage currents are the leakage currents of the drive with the Internal EMC

filter connected. No account is taken for leakage currents of the motor or motor cable.

NOTE

There is an internal voltage surge suppression device connected to ground. Under

normal circumstances, this carries negligible current.

NOTE

When the internal EMC filter is installed, the leakage current is high. In this case, a

permanent fixed ground connection must be provided.

WARNING

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4.3 EMC

4.3.1 Internal EMC filter

It is recommended that the internal EMC filter is kept in place unless there is a specific

reason for removing it.

It is recommended that the filter be used in all applications unless the ground leakage

current is unacceptable.

4.3.2 Removing the internal EMC filter

Figure 4-3 Removal of the VFD66 internal EMC filter

To disconnect the VFD66 internal EMC filter:

1. Remove the front panel Torx T10 screw (S2).

2. Loosen the PCB Torx T10 screw.

3. Remove the EMC filter link.

4. Re-tighten the Torx T10 PCB screw to 1 Nm (8.9 Ib in).

Removal of the MOV varistor

A MOV (varistor) is installed between the power circuit and ground in order to protect

the drive from high voltage impulses caused by lightning etc. In some applications it

may be necessary to disconnect this device , depending upon the applicable

regulations - for example if there is no fixed ground connection.

Figure 4-4 Removal of the VFD66 internal MOV

To disconnect the VFD66 internal MOV:

1. Remove the front panel Torx T10 screw (S1).

2. Loosen the PCB Torx T10 screw.

3. Remove the internal MOV link.

4. Re-tighten the Torx T10 PCB screw to 1 Nm (8.9 Ib in).

Remove

screw S2

PCB screw

EMC filter

link

Remove

screw S1

Internal MOV link

PCB screw

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4.3.3 Emissions Compliance

An internal factory installed EMC filter is provided with all ratings, it is recommended

that it is kept in place unless there is a specific reason for removing it. This internal filter

reduces radio-frequency emissions into the line power supply. When the motor cable is

short, it permits the requirements of EN61800-3:2004 to be met for the second

environment with restricted distribution. For longer motor cables, the filter continues to

provide a useful reduction in emission level. When used with any length shielded motor

cable (up to the limit for the drive), it is unlikely that nearby industrial equipment will be

disturbed.

Installation of an additional external EMC filter as shown in Table 4-1, provides higher

levels of emissions compliance. If the application requires these levels of compliance

then the external filter must be installed in order to ensure compliance with EMC

regulations such as the EC EMC Directive, and to ensure the validity of the CE mark.

Table 4-1 Emmisions compliance for VFD66 based on EMC filter configuration

*The typical leakage current of the low leakage filter is 3mA compared to the standard

filter which has a typical leakage current of 40mA.

Table 4-2 Key to conformity

Notes:

(1) The first environment is one where the low voltage supply network also supplies

residential premises

(2) When distribution is restricted, drives are available only to installer with EMC

competence.

Motor

Cable

Length m

(ft)

Filter and Switching Frequency

Internal Filter Only Standard Filter Low Leakage Filter

Schaffner P/N: FS6514-14-07 Schaffner P/N: FS6514-14-07-LL*

3kHz 6kHz 12kHz 3kHz 6kHz 12kHz 3kHz 6kHz 12kHz

1 (3) C4C4C4 C2 C2 C3 C2 C2 C3

5 (16) C4 C4 C4 C2 C2 C3 C2 C2 C3

10 (33) C4 C4 C4 C2 C3 C3 C3 C3 C3

15 (50) C4 C4 C4 C2 C3 C3 C3 C3 C3

25 (82) C4 C4 C4 C2 C3 C3 C3 C3 C3

50 (164)C4C4C4 C2 C3 C3 C3 C3 C3

Compliance

Level

Standard Description Frequency

Range

Limits Application

EN 61000-

6-4:2007

Generic emission

standard for the

Industrial

Environment

0.15 – 0.50

MHz

79dBμV quasi peak

66dBμV average

AC Supply Lines

0.50 – 30

MHz

73dBμV quasi peak

60dBμV average

EN 61800-

3:2004

IEC 61800-3

Product standard

for adjustable

power drive

systems.

Requirements for the first environment (1) with restricted

distribution (2).

EN 61800-

3:2004

IEC 61800-3

Product standard

for adjustable

power drive

systems.

Requirements for the second environment with unrestricted

distribution.

Requirements for the second environment with restricted

distribution (2).

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(3) Operation without an external filter is a practical cost-effective possibility in an

industrial installation where existing levels of electrical noise are likely to be high, and

any electronic equipment in operation has been designed for such an environment. This

is in accordance with EN 61800-3:2004 in the second environment, with restricted

distribution. There is some risk of disturbance to other equipment, and in this case the

user and supplier of the drive system must jointly take responsibility for correcting any

problem which occurs.

Figure 4-5 CE Compliance Wiring

• Physically separate the input and output cables.

• All input and output cables should be fully shielded, with the shield securely

grounded. The motor cable shield should be connected to the ground connection.

• Do not run input cables alongside output cables. Do not bundle input and output

cables together.

• The input ground wire should be connected to the ground connection.

• Ideally, the motor cable shield should be clamped directly to the back plate.

• The EMC filter body needs to be fixed to the same grounded metal part (e.g. the

back plate) as the motor cable shield.

Shielded

wiring

TB2

VFD66

Control

Motor

ground

TB1

EL1 L2

L1 L2 L3

EMC

filter

Input

device(s)

Alarm

device

Supply

ground

L3/T

L2/S

L1/R

T1/U

T2/V

T3/W

* The M5 nuts are provided to connect the shield to ground (earth).

NOTE

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4.3.4 Immunity Compliance

The level of the drives immunity from conducted and radiated emissions from external

sources is summarised below in Table 4-3.

Table 4-3 Immunity compliance

Standard Type of immunity Test specification Application Level

IEC 61000-4-2

EN 61000-4-2

Electrostatic

discharge

6kV contact discharge

8kV air discharge

Module enclosure

Level 3

(industrial)

IEC 61000-4-3

EN 61000-4-3

Radio frequency

radiated field

10V/m prior to modulation

80 – 1000MHz

80% AM (1kHz)

modulation

Module enclosure

Level 3

(industrial)

IEC 61000-4-4

EN 61000-4-4

Fast transient

burst

5/50ns 2kV transient at

5kHz repetition

frequency via coupling

clamp

Control lines

Level 4

(industrial harsh)

5/50ns 2kV transient at

5kHz repetition frequency

by direct injection

Power lines

Level 3

(industrial)

IEC 61000-4-5

EN 61000-4-5 Surges

Common mode 4kV

1.2/50µs waveshape

AC supply lines:

Line to ground

Level 4

Differential mode 2kV

1.2/50µs waveshape

AC supply lines:

Line to line

Level 3

Lines to ground

Signal ports to

ground

Level 2

IEC 61000-4-6

EN 61000-4-6

Conducted radio

frequency

10V prior to modulation

0.15 – 80MHz

80% AM (1kHz)

modulation

Control and power

lines

Level 3

(industrial)

IEC 61000-4-11

EN 61000-4-11

Voltage dips and

interruptions

-30% 10ms

+60% 100ms

-60% 1s

<-95% 5s

AC power ports

IEC 61000-6-1

EN 61000-6-

1:2007

Generic immunity standard for the residential,

commercial and light – industrial environment

Complies

IEC 61000-6-2

EN 61000-6-

2:2005

Generic immunity standard for the industrial

environment

Complies

IEC 61800-3

EN 61800-3:2004

Product standard for adjustable speed power

drive systems (immunity requirements)

Meets immunity requirements for first and

second environments

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4.4 Control terminals I/O specification

4.4.1 VFD66 control connections

* Used with class 2 circuits.

4.4.2 Wiring input devices to a VFD66

Connect the appropriate low-voltage input signal device to Terminal Block TB1 (Figure

4-2 on page 12). See Table 4-4 below, Figure 4-6 on page 19, Figure 4-7 on page 19,

and Figure 4-8 on page 20 for additional information on wiring specific Johnson

Controls/PENN™ input devices to the VFD66 controls.

The control circuits are isolated from the power circuits in the drive by basic insulation

(single insulation) only. The installer must ensure that the external control circuits are

insulated from human contact by at least one layer of insulation (supplementary

insulation) rated for use at the AC supply voltage.

WARNING

If the control circuits are to be connected to other circuits classified as Safety Extra Low

Voltage (SELV) (e.g. to personal computer), an additional isolating barrier must be

included in order to maintain the SELV classification.

WARNING

Alarm output 1 - drive OK (normally open)*

Voltage rating 5-24Vac or 5-30Vdc

Current rating

100μA at 24V minimum / 200mA maximum

Alarm output 2

+5V output

Max current rating 20mA (short circuit proof)

Analog reference input 1

Voltage 0 to +5V / 0 to +10V

Input impedance 100kΩ

Resolution 0.1%

Accuracy ±5%

Sample time 6ms

Analog reference input 2

Voltage 0 to +5V / 0 to +10V

Input impedance 100kΩ

Resolution 0.1%

Accuracy ±5%

Sample time 6ms

0V Common

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Table 4-4 Wiring Johnson Controls/PENN input devices

Input Devices

Use terminal 3 to connect an optional second input device to the VFD66 as shown in

Figure 4-6 and Figure 4-7 below.

Figure 4-6 Wiring P35 transducers to VFD66 terminal block TB1

Figure 4-7 Wiring P499 transducers to VFD66 terminal block TB1

Input Device Input Device Terminal VFD66 Control TB1 Terminal

P35AG-9200R Transducer

2 (or 3)

C450CPN control module

AO1 2

COM 4

C450CQN control module

AO1 2

AO2 3

COM 4

P499 Series Transducers

Red 1

White

2 (or 3)

Black 4

TB1

P35 Transducer

Second P35 transducer (optional)

421

White

(second output signal)

Red (5 Vdc supply)

White

(output signal)

TB1

Black (common)

Red (5 VDC Supply)

Black

(common)

20 VFD66 User Guide

www.johnsoncontrols.com Issue Number: 2

Figure 4-8 Wiring C450CPN control module or C450CQN control module to VFD66

Terminal Block TB1

The VFD66 controls work with most 0 to 5Vdc or 0 to 10Vdc electronic pressure

transducers. For best results, use 0 to 5Vdc, ratiometric P499 Electronic Pressure

Transducers. Ratiometric transducers vary the signal voltage from 10 to 90% of the 5Vdc

supply power as the pressure goes from minimum to maximum of the transducer rating.

4.4.3 Wiring an external alarm to a VFD66 control

The Metal Oxide Silicon Field Effect Transistor (MOSFET) alarm output activates when

a permanent fault condition occurs. See Figure 4-9 below.

Figure 4-9 Wiring the alarm output

Wiring the VFD66 input and output power

Select a wire size for field wiring based on a wire insulation temperature resistance

rating of 75

°C (167°F), with a maximum wire size of 12 AWG. Use only stranded copper

wire, rated for at least 600 volts.

C450CQN

Control module

two analog outputs

AO2

COM

AO1

C450CPN

Control module

one analog output

COM

AO1

TB1

3421

Applications using a 0 to 10 Vdc transducer must be powered separately.

NOTE

Visual

or Audible

External Alarm

Device

Alarm output

is rated for 100mA

at 30Vdc / 24Vac

24Vac / 30 Vdc

VFD66 Control

Terminal Block TB1

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Johnson Controls VFD66 Series User manual

Johnson Controls VFD66 Series User manual

Johnson Controls VFD66 Series User manual

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