SMC Networks mentor 12 User Manual

MENTOR 12 USER’S MANUAL SECTION 1: PRODUCT INTRODUCTION – Page 2

MENTOR 12 USER’S MANUAL

DISCLAIMER The information contained in this document is intended only to describe the

product MENTOR 12 and its operation. This document has no contractual contents and implies no warranty about the product’s specifications.

EuroSMC, S.A. claims the right to change the characteristics of the product and

the contents of this document with no previous announcement.

The user of the product is the only responsible of any consequences from the use

of the product for the purposes described or not in this document.

EuroSMC, S.A. explicitly exonerate themselves from the responsibility of any

errors accidentally made in this document.

Copying, reproducing or in any other way publishing this document in whole or in

part is prohibited without written authorization from EuroSMC, S.A.

The only official version of this document is the version written in Spanish

language

MENTOR 12 USER’S MANUAL SECTION 1: PRODUCT INTRODUCTION – Page 4

INDEX

Safety considerations....................................................................................8

Package’s contents.......................................................................................9

Handling the Mentor 12...............................................................................10

Transport case........................................................................................10

Working position.....................................................................................11

Product description .....................................................................................11

Start-up process..........................................................................................12

Start-up process..........................................................................................13

Initial check .................................................................................................15

Quick Start ..................................................................................................17

Power output control and regulation.......................................................17

Monitoring the binary input.....................................................................18

Binary output control...............................................................................18

Battery simulator setup and control........................................................19

Measuring external quantities.................................................................20

SECTION 2: BASIC CONTROL 21

Introduction .................................................................................................21

Description of source controls.....................................................................23

Selection of an output value........................................................................24

Selection of one single source (INDEPENDENT mode) ........................25

MENTOR 12 USER’S MANUAL SECTION 1: PRODUCT INTRODUCTION – Page 5

Simultaneous selection in several sources (SELECTED mode)............25

Selection when there are more than 3 available sources. ZOOM key. ..26

Application and Use of the function and help keys .....................................26

“Select all” key........................................................................................27

“Reset Values” key.................................................................................27

“Rotate” key............................................................................................28

“Save” and “Rest.” keys..........................................................................28

“Config. Status 2” and “Status 2” keys........................................................30

Measurement Window ................................................................................32

Configure times...........................................................................................33

TIMER START conditions ......................................................................34

TIMER STOP conditions ........................................................................36

TIMER Activation....................................................................................36

TIME DELAY..........................................................................................37

Configure measurements............................................................................38

System alarms ............................................................................................41

Battery Simulator.........................................................................................43

Logger.........................................................................................................44

SECTION 3: ADVANCED CONTROL 45

Introduction .................................................................................................45

FAULT Function..........................................................................................49

MENTOR 12 USER’S MANUAL SECTION 1: PRODUCT INTRODUCTION – Page 6

Configuration..........................................................................................53

Execution................................................................................................54

RAMP Function...........................................................................................57

Configuration..........................................................................................58

Execution................................................................................................63

PULSE RAMP function ...............................................................................65

Configuration..........................................................................................66

Execution................................................................................................71

BINARY SEARCH Function........................................................................73

Configuration..........................................................................................75

Execution................................................................................................79

STATE SEQUENCER function...................................................................81

Configuration..........................................................................................82

Execution................................................................................................84

SECTION 4: CONFIGURATION 87

Introduction .................................................................................................87

Common Configuration Operations.............................................................88

Analog Outputs ...........................................................................................89

Power Outputs. Definitions.....................................................................90

Usage Procedure....................................................................................91

Power Output Configuration...................................................................92

Configuration of the Low Level Outputs .................................................92

MENTOR 12 USER’S MANUAL SECTION 1: PRODUCT INTRODUCTION – Page 7

Binary Outputs ............................................................................................94

Definitions...............................................................................................94

Usage Procedure....................................................................................95

Binary Inputs...............................................................................................96

Definitions...............................................................................................96

Usage Procedure....................................................................................97

Miscellaneous .............................................................................................99

Definitions and Use ..............................................................................100

Maintenance..............................................................................................103

Definitions and Use ..............................................................................103

MENTOR 12 USER’S MANUAL SECTION 1: PRODUCT INTRODUCTION – Page 8

Safety considerations

Do not operate this product before carefully reading and understanding this manual, especially the safety warnings and recommendations. The use of this equipment is reserved to trained personnel only.

DANGER: Never try to use a Mentor 12 that looks damaged, dirty or incomplete. Connecting the unit to a power supply with any or all of its case’s faces removed is extremely dangerous.

DANGER: If you notice lack of response from the control panel, switch the unit off immediately and refer to technical service. Otherwise, the power outputs could be left inadvertently activated.

DANGER: Harmful voltage can build up at the u nit’s output connectors. Keep this in mind when handling the test leads and other devices connected to them. Never introduce a non-isolated conductive tool or instrument into the unit’s connectors while the unit is powered on or connected to the power supply.

CAUTION: Turn the unit ON before cabling anything to the connection’s board. Most input and output connectors in this board are dynamic and feature self-protecting mechanisms that work only in if the Mentor 12 is powered on. Internal dama ge may result from connecting the unit to wrong points when it is powered OFF.

CAUTION: Ensure that your power supply’s characteristics match the product’s supply requirements (voltage 100-260 Vac and frequency 45-65 Hz) before connection. Use only the supplied power cord to an AC outlet that includes a good EARTH connection.

CAUTION: The equipment should only be serviced after adequate anti-static measures and procedures have been carried out.

WARNING: Keep the ventilation holes clear from any obstruction to avoid over-heating.

WARNING: Use only your finger or a soft pointer to operate th e touch panel. Avoid excessive pressures on the touch panel. A subtle touch should immediately activate the desired action. Do not use abrasive or alcohol-based substances to clean the touch panel. Use only a soft, lint-free tissue or a special cleaning product for touch panels.

MENTOR 12 USER’S MANUAL SECTION 1: PRODUCT INTRODUCTION – Page 9

Package’s contents

Quantity Description

1 Mentor 12 unit, with variable power output channel configuration 1 Power Cord 1 Set of test leads in a nylon bag 1 Twisted-pair ETHERNET LAN cable 1 External mouse / keyboard PS/2 cord 1 User’s documentation 1 Certificate of calibration 1 Transportation hard case with wheels

NOTE: Contents may differ from the product’s standard packaging when

ordered with custom-specific options. If this is the case, refer to the packing list included in the product’s shipping documentation.

MENTOR 12 USER’S MANUAL SECTION 1: PRODUCT INTRODUCTION – Page 10

Handling the Mentor 12

The Mentor 12 has been designed with ergonomics in mind to provide a safe, convenient and reliable operation.

Transport case

Use always the supplied transport case for long displacements. This will save you useless efforts and will avoid accidental damages to the unit. The transport case features wheels and an extensible handle for your convenience.

Rest the case flat on the ground before opening it.

CAUTION: Do not grab the unit by the touch panel. Slide one hand into the slot underneath the touch panel and grab the back of the unit with the other hand to lift the unit off the case onto the working surface. Another slot can be found behind the touch panel.

The test leads are packaged in a nylon bag inside the transport case. Re-package them always when you finish working.

Stick FRAGILE labels on the transport case for long distance shipment. Avoid strong impact and vibration to the unit even when kept in

the transport case. Use always the transport case and include all the accessories

when sending the unit for servicing or calibration.

MENTOR 12 USER’S MANUAL SECTION 1: PRODUCT INTRODUCTION – Page 11

Working position

The Mentor 12 can stand up in two positions to better adapt to your work environment. Both ways take up very little from your working surface. The standard position is designed for a tabletop. Normally, you will not need to make any adjustment in the touch panel orientation when using this position. Ventilation to the unit and access to the connections are optimal in this position.

If you prefer to lay the Mentor 12 on the floor, stand it over the back side, where the ventilation holes are found. Ensure that the surface is flat, hard and clean. Do not operate the unit on soft carpets, cushioned or similar types of surface that can block the normal ventilation air flow. Sand or excessive dust can get into the unit and cause serious ventilation problems in the long term. You will need to adjust the touch panel’s orientation when using the Mentor 12 in this position.

Product description

The Mentor 12 has been designed to make relay testing as easy, safe and efficient as possible. The built-in computer eliminates the need of buying, carrying, connecting and maintaining an external PC. This approach provides also stronger security against operation mistakes and viruses. Yet, the Mentor 12 takes advantage of the best things that are now common in the personal computing world: Plug & Play, graphical interface, USB compatibility and access to the Internet, to say a few.

MENTOR 12 USER’S MANUAL SECTION 1: PRODUCT INTRODUCTION – Page 12

Touch Screen TFT panel (swivel)

Adjustment knob

Handle

Main FUSE

BATTERY simulator

Power VOLTAGE outputs

Power CURRENT outputs

COMMUNICATIONS set

GPS antenna plug

Analogue MEASUREMENT

BINARY INPUT

BINARY OUTPUT

ETHERNET RJ-45 plug

GROUND connector

Power STATUS LED

Main ON/OFF switch

MENTOR 12 USER’S MANUAL SECTION 1: PRODUCT INTRODUCTION – Page 13

Start-up process

Before connecting any other device to the connections panel, plug the Mentor 12 in to a suitable AC supply using the supplied AC cord and switch the unit ON. Various start-up screenshots will be displayed, with the TFT panel going occasionally black for a short while: this is normal. The start up process takes less than 2 minutes and includes:

• General hardware check

• Embedded PC start up test & initialization

• Specific hardware check

• Mentor Application start up

Upon completion of the start up process, the Basic Control screen will give you a general glance of the standard Mentor 12’s characteristics:

MENTOR 12 USER’S MANUAL SECTION 1: PRODUCT INTRODUCTION – Page 14

Output source selection area

Output source phase angle

Out

ut source level display

Output source level range & frequency bus

Output source ON/OFF

Battery Simulator setup area

Measurements window

Binar

Output ON/OFF buttons

Batter

Simulator DC setting

Batter

Simulator ON/OFF

Binary Input Monitorin

MENTOR 12 USER’S MANUAL SECTION 1: PRODUCT INTRODUCTION – Page 15

You can now proceed to set up the control and power requirement s for you r test, and to carry out the appropriate connections to the tested object (relay, IED, transducer, etc.). You will find detailed directions how to configure the Mentor 12’s power and control logic in the Configuration section in this manual.

When you finish your work, proceed to disconnect the test leads from the Mentor 12 first, then from the test objects. In this way you will prevent any voltage from accidentally touching the surrounding objects or yourself.

You can then turn the unit off directly. No software shutdown procedure is required.

Initial check

We recommend you to carry out a general check on your particular unit, in order to confirm that it has been configured properly according to your specifications. This will take you less than 5 minutes:

NOTE: The procedures below assume that the Mentor 12 is in its initial

power-on state, i.e., no changes have been made to the default factory settings.

• OUTPUT AMPLIFIERS CONFIGURATION: The initial factory-defined layout shows three voltage sources at the upper half and three current sources at the lower half of the Basic Control screen. Their default presets are: 63.5 V for the voltage sources, 1 A for the current sources and 0º-240º-120º for the angles.

Power sources are represented by colored (red, yellow, blue) rectangles labelled Vs# for voltage and Cs# for current.

MENTOR 12 USER’S MANUAL SECTION 1: PRODUCT INTRODUCTION – Page 16

However, this basic layout does not represent the maximum output capabilities of your Mentor 12. By means of the Configuration menu, you can add the following to the standard power layout:

a) any combination of up to SIX current-mode or voltage-mode LOW LEVEL SOURCES, regardless to the number of power channels that you have ordered, or

b) any combination of up to SIX sources taken from the standard lowlevel outputs and from any number of additional voltage or current AMPLIFIERS that you may have purchased with you Mentor 12.

Please refer to the Configuration section in this manual to find out how to locate, set up and include all your available output resources into the effective power layout of your particular unit.

• FREQUENCY: Each power source is attached to any of two frequency buses, Freq1 being the default assignment. Actual frequency bus #1 and #2 settings

are displayed and adjusted at a small window next to the sources section, underneath the phasorial power system representation. Be sure that the frequency bus(es) you are using match the electrical characteristics of the system that you are testing.

Any change made to a frequency bus is automatically taken by all the sources attached to it.

• ALARMS: The ALARMS indicator should be alwa ys dim (grey) after power- on. Otherwise, touch the indicator to bring the alarm details up and refer to the corresponding section in this manual for information on alarm interpretation, possible causes and solutions.

• BATTERY SIMULATOR: The pre-adjusted DC voltage is shown in the corresponding rectangle on the lower right. Touch and hold on the Battery Simulator label to select a different voltage level if required.

MENTOR 12 USER’S MANUAL SECTION 1: PRODUCT INTRODUCTION – Page 17

Quick Start

You can quickly become familiar with your Mentor 12 by conducting a simple routine through some basic manual operation functions:

• TFT panel operation

• Power output and regulation

• Binary input and output ports

• Battery simulator

• Analogue external measurement

To accomplish this, you will need at least the following materials:

• Multimeter

• One pair of test leads

Power output control and regulation

Choose one of the available current channels and try the following:

1. Adjust all the current channels to zero and be sure that the output is OFF.

2. Set up your meter and connect its current measurement input to the output connector of a current channel.

3. Select the channel in the touch screen and turn the regulation knob gently clockwise while you observe the meter’s display. Compare this display with the regulated value of that channel in the Mentor 12.

M TEN R SECTION 1: PRODUCT INTRODUCTION – Page 18 O 12 USER’S MANUAL

4. At a certain point, check the output control by touching the channel’s OFF button in the Mentor 12 and then back ON. While you do this, check that the meter’s output goes to zero and back to the adjusted quantity correspondingly.

5. Turn the channel’s output OFF by touching its OFF button in the touch panel.

Now, set up your meter for voltage measurement and repeat the above procedure for the voltage channels.

Monitoring the binary input

The Mentor 12 is permanently monitoring the presence / absence of contact or voltage signal at its binary inputs. You can experience this easily:

1. Take one test lead and connect one end to the black connector between the “1a” and “1b” yellow connectors in the Binary Inputs pad of the connections board.

2. Connect the free end of the test lead to “1a”. The corresponding indicator labelled “1a in” in the lower section of the Basic Control screen should lit in yellow.

3. Move the same end of the test lead to “1b ”. The “1b in” indicator should lit in yellow now.

Binary output control

Set up your meter for continuity testing, so it will beep when you short its test leads. Now, perform the following steps:

1. Connect the meter’s leads between the black and blue connectors of binary output 1 in the Binary Outputs pad of the connections board.

MENTOR 12 USER’S MANUAL SECTION 1: PRODUCT INTRODUCTION – Page 19

2. Touch the Out 1 button of the Binary Output pad in the lower right corner of the touch panel. The meter should beep until you touch the button again to deactivate the output.

IMPORTANT: Instead of using the meter, you may want to connect the binary

output to a binary input as described in the previous procedure. In this case, you will get a visual feedback in the touch panel rather than a sound signal from the meter.

Battery simulator setup and control

The procedure here is similar to checking the voltage power outputs described at the beginning of this chapter. However, rather than regulation, you can select the battery simulator’s DC output voltage from a set of predefined values in the range of 0-250 Vdc.

Set up your meter for DC measurement, connect its leads to the Battery Simulator pad in the connections board, and do the following:

1. Touch the ON button in the Battery Simulator pad at the bottom right corner of the touch panel and check that the voltage displayed there is now being measured by the meter.

2. Switch to a different DC value by touching the Battery Simulator pad (not the ON/OFF button) for a few seconds and selecting from the emerging window. When you do this, the battery simulator’s output is automatically stopped, so you should see zero in your meter’s display now.

3. Repeat steps 1 and 2 if you want to check other available DC output values in the battery simulator.

MENTOR 12 USER’S MANUAL SECTION 1: PRODUCT INTRODUCTION – Page 20

Measuring external quantities

Unless you also have an external source of electrical quantities, you can use the lowlevel signal generation and regulation resources in your Mentor 12 to accomplish this practice:

1. Ensure that all the power sources (voltage and current) are set to zero level and the output control is switched OFF.

2. Plug one of the supplied multi-lead adapters into one of the connectors labelled LL Outs 1-3 or 1-6 at the lower left section of the connections board.

3. Choose one red / black pair of bananas at the free end of the adapter and plug them into the red / black connectors at the Analog DC Inputs pad.

4. Set the measurements window in the Basic Control screen to External Measurement mode by touching the measurem ent readings as many times as necessary.

5. Configure the connected low level output as a source using the Configuration menus.

6. Select the added low level source in the Basic Control screen and turn the adjustment knob while you watch the readings changing at the Measurements window. Values at this window and at the source’s pad should match if you have set a 1:1 ratio for the low-level source configuration.

SECTION 2: BASIC CONTROL

Introduction

The section called Basic Control refers to the control of the equipment in an entirely manual mode. It has different controls for total control over all its functions. It is also the default home screen for Mentor 12, once the system has been booted. This section includes a detailed explanation of the operating mode of the different Mentor 12 controls, which is common for all its screens. This operating mode will not be described in the sections corresponding to these functions, as it will be taken for granted that the procedure is already known, so it is very important to carefully read this section.

MENTOR 12 USER’S MANUAL SECTION 2: BASIC CONTROL – Page 22

As shown in the picture, in the upper left-hand section of the screen, we can find the controls of all the outlet sources configured (see Configuration section), the frequency control, the chronometer or timer, several quick access command keys and the vectorial view of the magnitudes selected.

• Different selection tabs are located on the top of the screen, providing access exclusively to the selection and configuration of different functions that are directly related to the Basic Control.

• The status of all the Mentor 12 inputs and outputs, both digital and analogical, is shown on the bottom of the screen. There are also two arrows on the bottom of the screen, which, combined with the rotary knob, enable the desired output values to be selected, with the selected resolution. There is also a button called “alarms” which lights up in RED whenever an operation alarm occurs in any of the equipment outputs. A screen appears, when you press this button, which describes the type of alarm that has occurred and the module it corresponds to.

• The line of buttons on the right of the screen provides direct access to the different Control Modes of Mentor 12. Apart from the access to these modules, the Battery Simulator control can also be accessed, in order to either select the output value or activate or deactivate the output. These buttons and functions are always available for use from any control screen of the equipment.

MENTOR 12 USER’S MANUAL SECTION 2: BASIC CONTROL – Page 23

Description of source controls

Source with

output

ACTIVATED

and SELECTED

Default source with

deactivated, independent output (NOT SELECTED)

The controls of a power output source are described below. The figure shows what the control of a power output source looks like, before it has

been manipulated in any way, which is, in default conditions (see Configuration). We can see the following controls and tags:

• Cs1:

This indicates the type of Cs (Current Source) source and its number

(1).

There can be up to 6 current sources, depending on the equipment

configuration (Cs1 … Cs6). When pressed, the background color changes to BLACK meaning that the

source has been SELECTED. The following tags can be found, indicating the different types and numbers of

sources available, which are, apart from the current sources described:

• Vs…n: This indicates that it is a Voltage Source. There can be up to 6 at the same time depending on the configuration.

Source in Frequency BUS

selection mode

• Ll…n: This indicates that the output source used is a Low Level Output. There can be up to 6 outputs at the same time, depending on the configuration of the power sources (See Configuration Section for greater detail). They tally with the output of the Connectors marked LL OUT from 1 – 3 and from 4 – 6.

• Lv xxx.xxx A:

The Lv tag indicates that the value selection made in the

associated setting window is for SIGNAL LEVEL. The next tag (in this case A for amperes) indicates the unit of the level selected. This can be A (amperes), or V (Voltage) and this corresponds with the type of output source. The level is selected with the resolution and number of available digits indicated therein.

MENTOR 12 US SECTION 2: BASIC CONTROL – Page 24 ER’S MANUAL

• Ph xxx.xxx º:

The Ph tag indicates that the value selection made in the

associated setting window is for PHASE ANGLE in degrees, which corresponds to the level value selected previously, that is, to the source. The angle is selected with the resolution and number of available digits indicated in the relative window. The value selection and direction of rotation are determined by the selections made in CONFIGURATION.

• ON/OFF: This is used to ACTIVATE or DEACTIVATE the source output.

The INACTIVE status (Output disconnected) corresponds with the GREEN color and the ON legend on the key. This legend indica tes the action that

the key will carry out when pressed, NOT ITS STATUS, which is indicated by its color.

The ACTIVE status (Output connected) corresponds with the RED COLOR and the OFF legend on the key

• 25 A/ Freq 1:

This button is both indicator and selector.

As indicator, the top line (in this case 25 A) indicates the maximum permitted

level selection (25) with its relative unit (A). The bottom line (in this case Freq.

1) indicates which of the two frequency buses (Freq 1 or Freq 2) it is assigned to, or if it is assigned as a direct output, in which case DC

appears.

As selector, it permits selecting the frequency bus or direct mode. To do so,

it suffices to press the button and a menu drops down with the three possibilities. After the desired one has been pressed, the menu closes and it is selected.

Selection of an output value

A description is given below of the action to be taken to obtain a certain output value from one or several Mentor sources at the same time. This description is given step by step, and it can be applied at any time to any value selection on any control screen as the process is common to all the equipment control programming:

MENTOR 12 USER’S MANUAL OL – Page 25

Selection of one single source (INDEPENDENT mode)

To select any value, be it level or phase angle, it suffices to press on the setting window you wish to vary. A red-colored cursor will appear under some of the digits of this window. If the cursor appears on the weight digit that you wish to adjust (e.g. The digit that adjusts the angle by 10 degree intervals, as in the figure), you must only increase with the endless rotary knob until the desired value is reached. In the case of the figure, it will vary every 10 degrees.

If you wish to change its adjustment resolution, it suffices to press the arrow buttons situated on the bottom of the screen, directly above the rotary knob. If you press the right-hand arrow, the red-colored cursor will move to the right, increasing the resolution by one decade. If you press the left-hand arrow, the red-colored cursor will move to the left, decreasing the resolution by one decade.

In our example in the figure, if we press the right-hand key, our resolution increases to achieve degree be degree adjustment. If we press the left-hand key, our resolution decreases to achieve adjustment in 100 degree intervals.

Simultaneous selection in several sources (SELECTED mode)

Mention has been made above of the SELECTED mode and how to activate it in each source. This mode is used to make adjustments, changes in frequency reference and actions on the output status all at the same time, thus permitting three-phase adjustments or even of more sources, just by applying the single rotary knob, or any ON/OFF output control button. However, there are logically some limitations to carry out this practical function, depending on the parameters or actions that the change affects. These are described below:

SECTION 2: BASIC CONTR

Sources C1, C2, C3 and Llc6 in SELECTED mode, Sources Llc4 and Llc5 in

INDEPENDENT mode

• When LEVEL or phase ANGLE values are adjusted, any change made in a source on SELECTED mode, occurs in the same way in ALL the sources OF THE SAME TYPE (V or I) that are in that mode. That is, a change in

MENTOR 12 US SECTION 2: BASIC CONTROL – Page 26 ER’S MANUAL

level or angle in a Voltage source will only affect the voltage sources and not the current ones. The changes that are sent to the sources are INCREASES, both in phase angle and in level, so these increases sent will be added or subtracted, depending on the direction of the adjustment, to or from the values established at the start of the process.

• When you apply any ON/OFF key of a source in SELECTED mode, this change will take effect in ALL the sources of this mode, regardless of the output source type.

• When you apply any key that permits changing the frequency reference (BUS) of a source in SELECTED mode, this change will take effect on ALL the sources in this mode, regardless of the type of output source.

Selected expanded sources Llc4, Llc5 and Llc6 with the ZOOM key

Selection when there are more than 3 available sources. ZOOM key.

As you can see on the previous screen, when there are more than 3 sources of one type selected (see Configuration section), 3 of them appear in reduced form under a key marked ZOOM. The sources that appear under this key ONLY PRESENT INFORMATION about levels, phase angles and output status. None of the parameters mentioned can be changed. However, the mode can be selected as INDEPENDENT or SELECTED, by pressing them.

To be able to make changes in these sources you must go from reduced mode to expanded mode. This is done by pressing the ZOOM key. This action expands the sources under it and reduces the ones that were expanded, as you can see f rom the picture below.

Application and Use of the function and help keys

Under the individual controls for each source, there is a row with different keys, whose aim is to help carry out normal functions in the protections test, both quickly and easily, so just by clicking once you can access the desired changes. The different keys are described individually below:

MENTOR 12 USER’S MANUAL SECTION 2: BASIC CONTROL – Page 27

“Select all” key

This is used to directly and simultaneously place the sources in SELECTED mode. It is a function sequential selection key, that is, each pulse corresponds to a function. When it reaches the last one it goes back to the first, and so on and so forth. Every time it is pressed, the situation described by the tag is generated and this changes to indicate the action that will occur when pressed again. It has the following possibilities:

• Select all: This is the default configuration. When you press the key ALL the existing sources are placed in SELECTED mode.

• Select voltage: When you press this key, the selection of the current sources is deactivated, and only the voltage sources remain in SELECTED mode.

• Select current: When you press this key, the selection of the voltage modes is deactivated, and only the current sources remain in SELECTED mode.

• Deselect all: When you press this key the SELECTED mode is deactivated in all the sources that might be in this mode.

“Reset Values” key

This is used to return to the default values established in the Configuration (see Configuration section) in all the sources in SELECTED mode. It is important to point out here that this key will have NO effect on sources that are in INDEPENDENT mode.

MENTOR 12 USER’S MANUAL SECTION 2: BASIC CONTROL – Page 28

“Rotate” key

This key is designed to help the operator. It is quite normal during relay testing in threephase mode or phase to phase mode for it to be necessary to “rotate” the whole system in terms of phase angles, in order to simplify calculations with phase angles or even avoid connection changes to the relay itself. By doing this, the reference phase connected to the relay will always have an angle of zero degrees, while maintaining the appropriate phase rotation.

For example, if we assume a phase rotation ABC and a positive direction of rotation of the angles selected on the screen in clockwise direction (see Configuration section), the selected angles corresponding to each phase are:

• Phase A (0º) which corresponds to output source Cs1, Phase B (120º) which corresponds to output source Cs2 and Phase C (240º) which corresponds to output source Cs3, in our example.

If the “Rotate” key is pressed, the situation would change to the following:

• Phase C (240º) which corresponds to output source Cs1, Phase A (0º) which corresponds to output source Cs2 and Phase B (120º) which corresponds to output source Cs2, in our example.

If the “Rotate” key is pressed again, the situation would then change to:

• Phase B (120º) which corresponds to output source Cs1, Phase C (240º) which corresponds to output source Cs2 and Phase A (0º) which corresponds to output source Cs2, in our example.

If you press the “Rotate” key once again the situation returns to the original one. In short, with this key we manage to change our reference phase, as the relay being tested sees it, without physically having to change the output source that corresponds to it or the connection to the relay.

“Save” and “Rest.” keys

These keys are designed to help the operator. They are described together as they complement each other. During relay testing in manual mode, it is quite normal to have

MENTOR 12 USER’S MANUAL SECTION 2: BASIC CONTROL – Page 29

to repeatedly return to identical adjustment situations each time. This key combination exists to prevent having to adjust them in each case, making it possible, on the one hand, to save up to five adjustment situations or “panels”, and on the other hand, permitting quick and easy recovery and application of saved panels. They are used as follows:

• Save key:

When you press this key a drop-down menu appears with 5

buttons marked as “Save 1….5”. If you press on the one where you wish to save the panel, this is saved in the selected position. Tags with “+” sign indicate that the position is empty. Those marked with the other tag indicate that they contain data. In the picture below, tags 1, 2 and 3 contain data and positions 4 and 5 are empty.

• Rest. Key:

When you press this key a drop-down menu appears with 5

buttons marked as “Restore 1….5”.- Each number corresponds to the panel saved with the “Save” key. When you press on the one you wish to make active at that time, the panel is reproduced in the settings of the active panel. Tags with “-“ sign indicate that the position is empty. Those marked with the other tag indicate that they contain data. In the picture, tags 1, 2 and 3 contain data and positions 4 and 5 are empty.

IMPORTANT: All the panels saved during a work session are maintained until the

equipment is disconnected. When the system is booted again, none of the work panels remains.

MENTOR 12 USER’S MANUAL SECTION 2: BASIC CONTROL – Page 30

“Config. Status 2” and “Status 2” keys

During relay testing, be it manual or not, the possibility of carrying out dynamic changes in both the analogical and logic values of the different outputs selected is of great help (and is sometimes essential), in order to assess the response of the relay being tested to this change, either by trip time measurement or by the subsequent study of the performance of the outputs of this relay, using the “Logger” function.

For this function to be practical it is necessary to be able to configure this status, even while the conditions of the

“normal” or “1” status are activated. This is what the Config. Status 2 key is used for. Once the operator has edited the

desired parameters on this screen, the condition of 2nd value is activated with the Status 2 key.

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