IDT ZNRG2061 User Manual

ZNRG2061 Evaluation Kit User Manual

Description

The ZNRG2061 Evaluation Kit is designed to help the user evaluate IDT’s ZNRG2061 Smart Photovoltaic DC Arc-Fault Detector IC. The kit includes the ZNRG2061 Evaluation Board with a sample ZNRG2061 mounted, a current transformer, and a micro-USB cable for connecting the kit to the user’s computer.

When the Evaluation Board is connected to the user’s computer via a USB port, the ZNRG2061 can be monitored for arc-fault detection. A test arc circuit enables self-testing of the device.

IDT’s ZNRG2061 Arc Analyzer Software provides a graphical user interface (GUI) to enable configuration, data analysis, and communication with the ZNRG2061 mounted on the Evaluation Board. The GUI is also used to activate the training sequence that allows the ZNRG2061 to adapt its algorithms for safe and reliable detection of arc faults The GUI is available for download on IDT’s website.

Features

 Complete system demonstrates ZNRG2061 arc-detection

performance

 Evaluation Board includes arc test circuitry  Current transformer is included for easy evaluation  The kit can derive its power from the USB connection so no

additional power supply is required

 To ensure use of the latest version, the ZNRG2061 Evaluation

Software and the ZNRG2061 Evaluation Software User Guide are available for download on www.IDT.com/ZNRG2061-EVK

Kit Contents

 ZNRG2061 Evaluation Board, Revision V 3.0  100:100-Turns Current Transformer  Micro-USB cable

ZNRG2061 Evaluation Kit

ZNRG2061 Evaluation Kit User Manual

Important Notes

Disclaimer

Integrated Device Technology, Inc. and its affiliated companies (herein referred to as “IDT”) shall not be liable for any damages arising out of defects resulting from

(i) delivered hardware or software

(ii) non-observance of instructions contained in this manual and in any other documentation provided to user, or

(iii) misuse, abuse, use under abnormal conditions, or alteration by anyone other than IDT.

TO THE EXTENT PERMITTED BY LAW, IDT HEREBY EXPRESSLY DISCLAIMS AND USER EXPRESSLY WAIVES ANY AND ALL WARRANTIES, WHETHER EXPRESS, IMPLIED, OR STATUTORY, INCLUDING, WITHOUT LIMITATION, IMPLIED WARRANTIES OF MERCHANTABILITY AND OF FITNESS FOR A PARTICULAR PURPOSE, STATUTORY WARRANTY OF NON-INFRINGEMENT, AND ANY OTHER WARRANTY THAT MAY ARISE BY REASON OF USAGE OF TRADE, CUSTOM, OR COURSE OF DEALING.

Restrictions in Use

IDT’s ZNRG2061 Evaluation Kit consisting of the ZNRG2061 Evaluation Board, 100:100 turns Current Transformer, and micro-USB cable, and the ZNRG2061 Evaluation Software are designed for demonstration and evaluation only. IDT’s ZNRG2061 Evaluation Kit and Evaluation Software must not be used for performance and characterization purposes.

Important Safety Warning: These procedures can result in high currents, which can cause severe injury or death

and/or equipment damage. Only trained professional staff should connect external equipment and operate the software.

Important Equipment Warning: Ensure the correct connection of all cables. Supplying the board using the wrong

polarity could result in damage to the board and/or the equipment. Check that all jumpers have been removed from the board before applying power.

ZNRG2061 Evaluation Kit User Manual

1. Set up

1.1 User Equipment

The following additional equipment is required for using the kit:

 User’s computer (see requirements in section 1.2).

The following additional lab equipment is optional, but not necessary for the kit functionalities:

 Optional external power supply. The USB interface provides a +5V power supply to the Evaluation Board, from which an on-board voltage

regulator can provide 3.3V supply. Alternatively, the ZNRG2061 can be powered by the user’s external power supply (6V to 18V) connected to VIN + (X1-2) and GND (X1-2) as described in Table 1 (the rest of the Evaluation Board requires the 5V coming from the USB).

Note: The USB port only supports USB 2.0; USB 3.0 is not supported at this time.

1.2 User Computer Requirements and Setup

A Windows®-based computer is required for interfacing with the kit and configuring the ZNRG2061.

1.2.1 Computer Requirements

The user must have administrative rights on the computer to download and install the ZNRG2061 Arc Analyzer Software for the kit.

The computer must meet the following requirements:

 Windows® XP, 7, or 10  Supported architecture: x86 and x64  Available USB port  Internet access for downloading the ZNRG2061 Arc Analyzer Software.

1.2.2 Software Installation and Setup

To ensure use of the latest version of the software, the ZNRG2061 Arc Analyzer Software zip file is available for download in zip file format at no cost from the IDT web site page given on page 1. It is not included with the kit hardware.

Follow these procedures to install the ZNRG2061 Arc Analyzer Software zip file:

1. After downloading the zip file to the user’s computer, extract the contents of the zip file.

2. Double-click on the extracted setup.exe file to activate the installation.

3. Follow the standard installation instructions displayed on the screen and change the installation path if required. If the default path

settings have been used, the software automatically completes the installation and creates an access link on the user’s computer under Start > All Programs > IDT. The installation dialog offers the option to create a desktop short-cut icon for the software.

ZNRG2061 Evaluation Kit User Manual

Figure 1. Initial Display after Installation of the Evaluation Software

Note: This is the display when the software is activated for the first time with the kit hardware connected. Refer to the ZNRG2061 Software User Manual for the initial setup steps for the software.

ZNRG2061 Evaluation Kit User Manual

1.3 Kit Hardware Connections

Set up the Evaluation Kit connections as shown in Figure 2. Refer to Table 1 below for the description.

Figure 2. ZNRG2061 Evaluation Board Overview

5

4

6

3

1

7

2 8

9

10

11

Table 1. Evaluation Board Key Components and Functions

Note: See Figure 2 for the number references used in this table. Also see the schematics in section 3.

Ref.

Name

Connector Label

Function

1

USB Connector

J3

This connector is used to connect the Evaluation Board to the user’s computer via

the micro-USB cable. Wait until the instructions in section 1.4 to make this connection.

2

INP

I+ (X2-7 pin on X2)

Connect INP and INN to the leads for the secondary of the current transformer. See Figure 4.

INN

I- (X2-8 pin on X2)

3

FAKE-ARC

J2

Pushbutton for Arc Fault Test signal creation.

4

RESET

J1

Pushbutton to reset the ZNRG2061.

ZNRG2061 Evaluation Kit User Manual

Ref.

Name

Connector Label

Function

5

AFD

AFD (X2-5 on X2)

Arc-fault detection output. It is indicated by the AFD LED on board. See Figure 4.

6

AFS

AFS (X2-4 on X2)

Arc feature signal output; it is indicated by the AFS LED on board. See Figure 4.

7

Jumper

SJ1

Connection to Arc Fault Test circuitry. See section 2.2.

8

RA+

RA+ (X2-9 pin on X2)

Connect RA+ and RA- to the leads for the primary of current transformer. See Figure 4.

RA-

RA- (X2-10 pin on X2)

9

VIN+

External power supply connector (X1-2).

10

GND

GND pin when using external power supply (X1-1).

11

LEDs

POWER LED

See section 1.4.

AFS LED

See reference 6 above.

AFD LED

See reference 5 above.

Figure 4 shows pin assignments for the terminal blocks on the Evaluation Board and the details of the connections to the current transformer.

The current transformer included in the kit has 100 turns for both the secondary and auxiliary windings on a T80-26 toroidal core that is available from Micrometals or KDM. Figure 3 shows a picture of the transformer. Additional transformers can be ordered from Precision, Inc. at 1700 Freeway Blvd, Brooklyn Center, MN 55430 (http://www.precision-inc.com/).

The RA+/RA- signals are output by the arc test circuitry on the Evaluation Board to the coil.

Figure 3. 100:100-Turns Current Transformer

ZNRG2061 Evaluation Kit User Manual

1.4 Power-up

After installing the GUI as described in section 1.2.2 and setting up the kit hardware as described in section1.3, use the micro-USB cable to connect the USB connector to an available USB port on the user’s computer as shown in Figure 4. Then activate the GUI to control the Evaluation Board.

Note: When the Evaluation Board has power, the POWER LED will be on (see Figure 2).

Figure 4. Evaluation Board Connections to Current Transformer and User’s Computer

USB

X2 Connector

X1 Connector

100:100

* The asterisk indicates pin 1.

*

ZNRG2061 Evaluation Kit User Manual

2. Usage Guide

Refer to the ZNRG2061 Software User Manual for full details for using the software.

2.1 Monitoring Output Signals

The outputs signals ADF and AFS are used by the system to monitor the status of the arc detection. They are available on the Evaluation Board (see Table 1 for the pin locations). Figure 5 shows the possible states for the output signals.

Figure 5. AFD and AFS State Diagram

2.1.1 AFD – Arc Fault Detector

The AFD pin is static, and it can be used to control a DC break switch directly in the event of detecting an arc. If an arc is detected, the AFD output level goes HIGH.

If the ZNRG2061’s built-in self-test (BIST) detects a malfunction, the AFD pin will be set HIGH. In the event of a malfunction, the ZNRG2061 might attempt to recover automatically. If the final recovery attempt is not successful, the AFD pin will be set HIGH.

If set, the AFD pin is permanently latched HIGH, and the ZNRG2061 will not reset the output by itself. Only a power off/on cycle or a GUI command can reset this pin.

The red AFD LED indicator on the Evaluation Board (see Figure 2) is on if the AFD pin is set HIGH; otherwise it is not on.

2.1.2 AFS – Arc Feature Signal

The AFS pin is dynamic, and it outputs a signal similar to pulse width modulation (PWM). The information on this pin is defined by the width of the positive pulse width in milliseconds.

This pin can be used for the following purposes:

 The AFS pin can serve as secondary validation pin. This can be implemented on a system level. The AFS pin is designed to be

complementary (dynamic vs. static) to the AFD pin, so that there is an opportunity for detecting a complete component failure.

 The AFS output can be used to indicate an error condition as part of its normal functions. It will stop its PWM-like pulses if a malfunction is

detected. A small external circuit (for example, a watchdog circuit) can be used to display the state on the LED.

Example: In the unlikely case of a ZNRG2061 malfunction during an arcing event, the AFD might not be triggered. In this case, the AFS pin will remain static HIGH or LOW (PWM 0% or 100%), thus indicating the error.

The AFS pin is connected to the white AFS LED indicator which reflects the PWM signal.

ZNRG2061 Evaluation Kit User Manual

2.2 Arc Test Circuitry

The Evaluation Board also provides an arc test circuit that can produce a signal to mimic an arcing event. The arc test circuit (see Figure 6) produces a noise signal that can be controlled manually with a switch.

When the current transformer is connected as shown in Figure 4, the user can press the FAKE-ARC switch, J2, to generate a noise signal via the transistor Q1 and the IC3 operational amplifier, simulating an arcing event. Pins 1 and 2 on the 3-pin jumper SJ1 must be shorted for the arc test circuitry to work. The RA+ and RA- must be connected to the secondary of the current transformer per Figure 2.

Potentiometers R3 and R11 (see Figure 7) can be used to adjust the arc test signal. R3 will adjust the op amp gain to obtain the right amplitude for the test signal. The Evaluation Kit has been pre-tested with the right values for potentiometers R3 and R11.

Refer to the ZNRG2061 Software User Manual for full details for using the arc fault detector test circuit with the GUI.

Figure 6. Arc Test Circuitry Schematic

Figure 7. Potentiometers R3 and R11

R3 Potentiometer

R11 Potentiometer

ZNRG2061 Evaluation Kit User Manual

10

March 29, 2017

3. Evaluation Board Schematic

Figure 8. Evaluation Board – Main Circuit

ZNRG2061 Evaluation Kit User Manual

11

March 29, 2017

Figure 9. Evaluation Board Schematic – USB Circuit

ZNRG2061 Evaluation Kit User Manual

12

March 29, 2017

4. Bill of Materials (BOM)

The parts with an (*) are not populated.

Table 2. Evaluation Board BOM

No

Name

Value

Package

Manufacturer

Qty

1

AFD

KP-2012SURC

0805

Kingbright

1

2

AFS, POWER

LTW-170ZDC

0805

Lite-On

2

3

C1, C2, C4, C5, C6*, C15, C23, C24, C25

100nF/50V

0603

AVX

8

4

C3*, C20

10nF/100V

0805

AVX 1 5

C7, C8, C16

10µF/25V

1206

AVX

3

6

C9, C12

100µF/10V

1206

TDK

2

7

C10

1nF/100V

0603

AVX 1 8

C11, C13

680pF/50V

0603

Multicomp

2

9

C14

22nF/50V

0603

AVX 1 10

C17

680nF/50V

0603

TDK 1 11

C18, C19

2µ2F/25V

0805

AVX 2 12

C21

220pF/100V

0603

AVX

1

13

C22

2µ2F/16V

0603

AVX

1

14

D1, D2

BAT60J

SOD323

STMicro

2

15

D3, D4, D7

PMEG3010ER

SOD123

NXP 3 16

D5, D6*

PESD1

SOT23

NXP 1 17

IC1

LM317

SOT89-3

TI 1 18

IC2*

LM317

SOT223

TI 0 19

IC3

LM386M-1

SOIC8

TI

1

20

IC4

ZNRG2061

PQFN32 5x5mm

IDT

1

21

J1, J2

39-261-RED

Grayhill

2

22

J3

USB-MICRO

AMP FCI

1

23

JP1

961106-6404-AR

3M 1 24

L1

MH2029-300Y

0805

Bourns

1

25

Q1

MMBT3904

SOT23

ON Semi

1

26

Q2, Q3

BSS138

SOT23

NXP

2

27

R1, R26, R28*, R35, R38, R41, R44

10k

0603

Yageo

6

28

R2

15k

0603

Yageo

1

29

R3

100k

Bourns

1

ZNRG2061 Evaluation Kit User Manual

13

March 29, 2017

No

Name

Value

Package

Manufacturer

Qty

30

R4

1k1

0603

Yageo

1

31

R5

1k8

0603

Yageo

1

32

R6

1k5

0603

Yageo

1

33

R7, R40

2k2

0603

Yageo

2

34

R8, R9, R20, R21, R22, R23, R24, R42, R43

33R

0603

Yageo

9

35

R10, R36, R37

1k

0603

Yageo

3

36

R11

10k Bourns

1

37

R12, R13

10R

0603

Yageo

2

38

R14, R15

2R2

0603

Yageo

2

39

R16

1k2

0603

Yageo

1

40

R17, R18, R19

120k

0603

Yageo

3

41

R25, R27, R29, R30, R34, R46

4k7

0603

Yageo

6

42

R31, R32, R33

47R

0603

Yageo

3

43

R39

380R

0603

Yageo

1

44

R45

0R

0603

Yageo

1

45

R47, R48

470R

0603

Yageo

2

46

SV1

75869-104LF

AMP FCI

1

47

U1

FT232RQ

QFN32

FTDI

1

48

X1

1725656

Phoenix Contact

1

49

X2

1725753

Phoenix Contact

2

50

Z1, Z2

CG0603MLC-05E

0603

Bourns

2

ZNRG2061 Evaluation Kit User Manual

14

March 29, 2017

5. Board Layout

Figure 10. ZNRG2061 Evaluation Board V3.0 Board Layout – Top Assembly Layer with Silkscreen

ZNRG2061 Evaluation Kit User Manual

15

March 29, 2017

Figure 11. ZNRG2061 Evaluation Board V3.0 Board Layout – Top Layer

ZNRG2061 Evaluation Kit User Manual

16

March 29, 2017

Figure 12. ZNRG2061 Evaluation Board V3.0 Board Layout – Bottom Layer

ZNRG2061 Evaluation Kit User Manual

17

March 29, 2017

Figure 13. ZNRG2061 Evaluation Board V3.0 Board Layout – Bottom Assembly and Silkscreen

ZNRG2061 Evaluation Kit User Manual

18

March 29, 2017

6. Ordering Information

Orderable Part Number

Description

ZNRG2061KITV1P0

ZNRG2061 Evaluation Kit, including the ZNRG2061 Evaluation Board, 100:100-Turns Current Transformer, and a micro-USB cable.

7. Revision History

Revision Date

Description of Change

March 29, 2017

Initial release.

Corporate Headquarters

6024 Silver Creek Valley Road San Jose, CA 95138

www.IDT.com

Sales

1-800-345-7015 or 408-284-8200 Fax: 408-284-2775

www.IDT.com/go/sales

Tech Support

www.IDT.com/go/support

DISCLAIMER Integrated Device Technology, Inc. (IDT) and its affiliated companies (herein referred to as “IDT”) reserve the right to modify the products and/or specifications described herein at any time, without notice, at IDT's sole discretion. Performance specifications and operating parameters of the described products are d etermined in an independent state and are not guaranteed to perform the same way when installed in customer products. The information contained herein is provided without representation or warranty of a ny kind, whether express or implied, including, but not limited to, the suitability of IDT's products for any particular purpose, an implied warranty of merchantability, or non -infringement of the intellectual property rights of others. This document is presented only as a guide and does not convey any license under intellectual property r ights of IDT or any third parties.

IDT's products are not intended for use in applications involving extreme environmental conditions or in life support systems or similar devices where the failure or malfunction of an IDT product can be reasonably expect ed to significantly affect the health or safety of users. Anyone using an IDT product in such a manner does so at their own r isk, absent an express, written agreement by IDT.

Integrated Device Technology, IDT and the IDT logo are trademarks or registered trademarks of IDT and its subsidiaries in the United States and other countries. Other trademarks used herein are the property of IDT or their respective third party owners. For datasheet type definitions and a glossary of common terms, visit www.idt.com/go/glossary. All contents of this document are copyright of Integrated Device Technology, Inc. All rights reserved.