Trafox Superintend im-01.med User manual

Superintend IM-01.MED/IC-01/TC-01/RD-01/PEC-01 Manual v1.15 English

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SUPERINTEND IM-01.MED/IC-01/TC-01/RD-

01/PEC-01

IMD Insulation Monitoring device for non-grounded (IT) electrical

networks for medical locations

Instructions for installation and use v1.15

AC/DC

MED

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Table of Contents

INSTRUCTIONS ..................................................................................................4

SYSTEM DESCRIPTION .......................................................................................5

INSTALLATION ...................................................................................................5

PHYSICAL CONNECTION ..................................................................................... 5

DEVICE MOUNTING ............................................................................................ 5

RS-485 NETWORK CONNECTION ......................................................................... 9

HW SETTINGS OF THE TC-01 AND IC-01 UNITS .................................................. 11

HW SETTINGS OF THE RD-01 UNIT .................................................................... 12

HW SETTINGS OF THE PEC-01 UNIT................................................................... 13

HW SETTINGS OF THE IM-01.MED UNIT ............................................................. 13

HW SETTINGS OF THE CLT-01 UNIT ................................................................... 14

SYSTEM CONFIGURATION ................................................................................. 14

USE ..................................................................................................................16

GENERAL ........................................................................................................ 16

IM-01.MED UNIT.............................................................................................. 16

MENU STRUCTURE........................................................................................ 17

MONITOR MENU ........................................................................................... 19

ALARM MENU ............................................................................................... 22

SETUP MENU................................................................................................ 27

NETWORK SCAN........................................................................................... 31

NETWORK VIEW / ADDING AND REMOVING DEVICES ....................................... 34

AUX. ALARM MASK ....................................................................................... 36

IP SETTINGS................................................................................................ 38

ERRORS ...................................................................................................... 39

LOG FILES ................................................................................................... 40

Event log (EVENTLOG.TXT) .......................................................................... 41

Measurement log (MEASLOG.TXT) ................................................................ 47

Setup log (SETUPLOG.TXT) .......................................................................... 48

MODBUS/TCP REMOTE CONTROL.................................................................... 49

REMOTE CONTROL UNITS ................................................................................. 54

INSULATION RESISTANCE REMOTE CONTROL UNIT IC-01 ................................. 54

TRANSFORMER REMOTE ALARM UNIT TC-01 .................................................... 56

INSULATION RESISTANCE AND TRANSFORMER REMOTE ALARM UNIT RD-01....... 57

Monitor mode ............................................................................................. 58

Alarm mode ............................................................................................... 59

System test mode....................................................................................... 60

System fault mode...................................................................................... 60

Setup mode ............................................................................................... 60

PEC-01 UNIT ................................................................................................... 61

CLT-01 UNIT ................................................................................................... 63

TECHNICAL SPECIFICATIONS...........................................................................65

IM-01.MED UNIT.............................................................................................. 65

PEC-01 UNIT ................................................................................................... 67

TC-01 and IC-01 UNITS .................................................................................... 67

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RD-01 UNIT .................................................................................................... 67

MECHANICAL DIMENSIONS ............................................................................... 68

QUICK INSTRUCTION TEMPLATES OF IC-01 AND TC-01 FOR MEDICAL LOCATIONS.. 71

QUICK INSTRUCTION TEMPLATE OF RD-01 FOR MEDICAL LOCATIONS ................... 72

IM-01.MED - QUICK INSTRUCTION FOR ACKNOWLEDGING ALARMS ...................... 73

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INSTRUCTIONS

These instructions for use are intended for trained electrical engineering professionals.

The IM-01.MED and PEC-01 devices are marked with the symbol shown below, which

indicates that if the device has been installed incorrectly or used in violation of

instructions, safety could be jeopardised. The description of the symbol is presented in

this manual instead of on the device due to space constraints. Such sections are marked

with the symbol shown below.

A symbol indicating possible danger. A description of the symbol may be

placed on the device or provided in the instructions for use.

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SYSTEM DESCRIPTION

IM-01.MED, PEC-01, TC-01, IC-01, RD-01 and CLT-01 form a system of devices that can

be used to measure and monitor the insulation resistance and capacitance as well as the

continuity of the PE wire of floating electricity networks (Medical IT systems in

accordance with standard IEC 60364-7-710). Of the aforementioned devices, IM-01.MED

is necessary, while the other devices are accessories.

INSTALLATION

PHYSICAL CONNECTION

The devices are connected to the electrical network, which may contain

dangerous voltage. The device may be installed by a trained electrical

engineering professional only. The device contains no user-serviceable parts

and must not be opened. Using the device in violation of these instructions

may compromise safety.

The IM-01.MED unit is the control unit of the system and is installed in the switchboard.

Two IM-01.MED devices may not be installed galvanically in the same network, for

example on the secondary side of the same transformer. The connection is performed as

presented in Figure 1. The installation and wiring should be performed in accordance

with standards IEC 60364 as well as EN 50110. The operating voltage connection of IM-

01.MED must always be equipped with a coupler or a circuit breaker so that the

electricity supply can be disconnected for the duration of maintenance work, for

example. The location of the disconnectors must be clearly marked in the switchboard.

The coupler or line protection switch should also control a relay or contactor, which

separates the measuring wires from the network to be measured. The IM-01.MED device

is equipped with an internal 1 A fuse. In spite of this, the wires of the operating voltage

supply should still be protected with an external fuse. A suitable if the size is, for

example, 6 A. In a DC operating voltage supply, an external Schurter 0001.2503

(T800mA) fuse should be used.

DEVICE MOUNTING

The IM-01.MED, PEC-01 and CLT-01 devices are intended for installation in a DIN TS35

rail in accordance with standard IEC 60715. They are installed by inserting the upper

edge of the DIN TS35 rail in the groove intended for the DIN TS35 rail on the back of the

device and by pushing the bottom edge of the device backward until the retaining latch

clicks into place.

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The IM-01.MED unit comes with the connections shown in the following table. The

shaded parts are optional and are installed as needed, while installing the other parts is

mandatory.

Category

Connector

Description

Operating

voltage

connection

220…240 VAC, 48…62 Hz phase conductor, internal fuse 80 mA slow

220…240 VAC neutral conductor

RS-485

+12V

+12V input for RS-485 with opto isolation, twisted pair 2

RS-485 data+ (two-way data/twisted pair 1)

RS-485 data- (two-way data/twisted pair 1)

A RS-485 network terminal. Connect a short lead in TR-B if the device is

the last one in the chain.

RS-485 network and 12V connection earth, twisted pair 2

The shields of the RS-485 cables are joined together here

Measuring

connectors

PE0

The reference for the earthing resistance measuring connectors, to be connected to the PE rail

PE1

Measuring channels for earthing resistance.

Each channel is connected to the last PE connector in the wall socket chain

with a 2.5mm² wire.

PE2

PE3

PE4

PE5

PE6

The measuring connectors of the PEC-01 units are cabled with 2.5mm² installation wires.

PE0 is connected to the PE rail of the switchboard, and the measuring channels are

connected to the earthing connector of the last wall socket of each wall socket branch.

Thus, the PE wire of each wall socket branch makes a loop, and the PEC-01 unit

measures the resistance of that loop. If there are several PEC-01 units, their PE0 wires

do not need to be in the same point.

The TC-01, IC-01 and RD-01 units are installed in mounting boxes. The units have the

following connections, all of which must be installed. The CLT-01 unit to be installed in

the switchboard has equivalent connections, all of which must always be installed.

RS-485

RS-485 data+ (two-way data/twisted pair 1)

RS-485 data- (two-way data/twisted pair 1)

RS-485 network and 12V connection earth, twisted pair 2

Chaining of the RS-485 cable shield

+12V

+12V input from the IM-01.MED unit, twisted pair 2

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Figure 1. System connection.

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RS-485 NETWORK CONNECTION

Each unit type comes with its own address area in the range of 0–15 (IC-01, TC-01,

PEC-01) or in the range of 0-4 (RD-01). The IM-01.MED unit distinguishes between units

of different type in the same address from each other. Although the total number of

addresses is 53, the maximum number of devices that can be connected to one IM-

01.MED device is smaller in practice: it must be ensured that the combined power

consumption of the devices does not exceed the maximum value set for the IM-01.MED

as shown in the table below.

IM-01.MED power supply (12 VDC)

300 mA

Device

Power

consumption (12

VDC)/device

IC-01

8 mA

TC-01

8 mA

RD-01

35 mA

PEC-01

14.5 mA

CLT-01

32 mA

The unit address is set by means of a rotary switch (IC-01, TC-01, PEC-01) or buttons

(RD-01). The IM-01.MED unit has no address settings. It is always the host of the bus, in

other words, it gives the commands to different units and then waits for their answers.

The CLT-01 unit has no address settings either.

The IM-01.MED unit and PEC-01 units are installed in the switchboard and connected to

the mains current. Remote units are installed in mounting boxes. They as well as the

CLT-01 unit to be installed in the switchboard, receive the 12VDC supply electricity from

the IM-01.MED unit.

All units are connected to each other via the RS-485 network. The network must form an

uninterrupted chain, which is open at both ends, and contains no branches. Thus, a

maximum of two RS-485 cables are installed in any unit; in other words, an incoming

and an outgoing cable. A terminator is installed in the first and the last unit by means of

a jumper or wire jumper equipped with the unit. In all other units, the resistance must

be left open. The network units can be physically in any order. If the network is long

(>200 m), it is recommended that the IM-01.MED unit is physically located in the middle

of the chain.

The cable shield is also connected to each unit and connected to protective earth in the

IM-01.MED unit. In other devices, the shields are floating and the connector only acts as

a joining connector between two shields.

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The RS-485 connection is made using a 2*2 twisted paired cable equipped with a shield

(e.g. AWG22=0.32 mm²=106 Ω/km). In that case, the maximum length of the chain

from the IM-01.MED unit to the last remote unit is 500 m. If a thinner cable is used, the

allowed length shortens inversely proportionately to the cable resistance. The cable

shield is connected to the SH terminal of each unit. The shield is connected to the

network protective earth in the IM-01.MED unit. In other devices, the shields are floating

and the connector only functions as a joining connector of two shields. The twisted pairs

are connected so that the A–B signals are in one pair and the +12V–earth are in another

pair.

Examples of network connection. In the upper Figure, the IM-01.MED unit is in

the middle of the chain, and in the lower Figure, it is at the end of the chain.

Terminators are installed in the green units.

Checklist for the installation of the bus:

Each unit of the same type must have a unique address.

No more than two RS-485 cables may be installed in any unit. Otherwise, the bus

does not form an uninterrupted chain but has branches.

The shields of the cables are connected to the SH terminal of each unit.

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The twisted pairs are connected so that the A–B signals are in one pair and the

+12V–GNDs are in another pair.

A terminator is installed at both ends of the bus, in other words, to those units

that only have one of each wire. The TC-01, IC-01, RD-01, CLT-01 and IM-

01.MED units are equipped with a jumper for this purpose. In the PEC-01 unit,

the terminator is installed by connecting a short wire between the TR and B

terminals.

There is always a terminator in only two devices per chain.

HW SETTINGS OF THE TC-01 AND IC-01 UNITS

The addresses of the TC-01 and IC-01 units are set so that there is only one address per

unit in the range of addresses for either unit type. A TC unit may have the same address

as an IC unit, but no TC unit may have the same address as another TC unit (the same

applies to the IC units). If a TC-01-/IC-01 unit is the first or last device of the bus,

connect the two pins next to the terminal strip to each other with a terminator jumper.

The order of pins in TC-01 and IC-01 is shown in the Figure below.

The device address is set with a rotary switch, shown in the Figure. The addresses

corresponding to the switch texts are: A = 10, B = 11, C = 12, D = 13, E = 14 and F =

15. The other addresses (0–9) function in the manner marked on the switch.

+12V

The pins to be

connected by means of

a terminator jumper

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HW SETTINGS OF THE RD-01 UNIT

In RD-01 units, the address is set so that each RD-01 unit has its own individual address

in the range of 0-4. The address is set using buttons, see section INSULATION

RESISTANCE AND TRANSFORMER REMOTE ALARM UNIT RD-01, Setup mode for more

information. If the RD-01 unit is the first or last device of the bus, connect the two pins

next to the terminal strip to each other with a terminator jumper. The order of pins in

RD-01 is shown in the Figure below.

+12V

The pins to be

connected by means of

a terminator jumper

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HW SETTINGS OF THE PEC-01 UNIT

In PEC-01 units, the device address is set using a rotary switch as shown in the Figure.

When the switch is at the far counter-clockwise position, the address is 0. In the other

far end, the address is 15. The cover can be removed by using a screwdriver between

the cover and the case to pry the cover loose. The addresses corresponding to the switch

texts are: A = 10, B = 11, C = 12, D = 13, E = 14 and F = 15. The other addresses (0–

9) function in the manner marked on the switch. Each PEC-01 unit must have a unique

address between 0–15. The address may be the same as that of a TC-01 or IC-01 unit.

If a PEC-01 unit is the first or last device of the bus, connect the TR and B pins of the

terminal strip with a wire jumper.

HW SETTINGS OF THE IM-01.MED UNIT

Setting a device address is not necessary in the IM-01.MED unit. If the IM-01.MED unit

is at the end of the bus, a terminator must be connected. The terminator jumper is

located under the centre cover in the location indicated in the Figure. Open the cover by

using a small screwdriver between the cover and the case to pry the cover loose.

Address rotary

switch

To remove the cover:

Pry the cover loose

with a screwdriver

here and remove the

cover

The terminator is set by connecting a short circuit connector between terminal blocks TR and B.

To open the cover: pry the cover loose with a screwdriver here and remove the cover

Terminator jumper

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HW SETTINGS OF THE CLT-01 UNIT

Setting a device address is not necessary in the CLT-01 unit. If the CLT-01 unit is at the

end of the bus, a terminator must be connected by changing the location of the

terminator jumper to the left and middle pins. The terminal jumper is under the

connector cover, above the terminal strip, as shown in the Figure. Open the cover by

using a small screwdriver between the cover and the case to pry the cover loose.

SYSTEM CONFIGURATION

The entire system must be configured before use. Configuration is performed from the

IM-01.MED unit. The PEC-01 units do not perform measurements and the IC-01/TC-

01/RD-01 units do not give alarms until the bus has been inspected. This is carried out

with the Network Scan function, which is described separately (the SETUP menu). After

the bus inspection, the IM-01.MED unit displays the type and address of each unit on the

screen. For the PEC-01 units, the number of channels used and the resistance measured

from each channel during bus inspection are also displayed. The user must approve and

verify all measured PE resistances and addresses. The IM-01.MED unit creates a table of

the device addresses and the measured PE resistances, to which future alarm limits will

be proportioned. Special attention should be paid to ensure that two similar units with

the same address have not been connected to the system. The most sensible

configuration order for the settings is as follows:

If a microSD memory card has been connected to the device, enable it

(SETUP→Mem Card: in use) and restart the device.

Set the correct time. (SETUP→Time)

Set the load current measurement and isolation transformer parameters

(SETUP→TranSize, Nom.Cur)

To open the cover: pry the cover loose with a screwdriver here and remove the cover

Terminal jumper not

connected

Terminal jumper

connected

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Set the alarm parameters (SETUP→InsLimit, PrInsLim, Temp Lim, TsensTyp (Pt

Calib, if needed), LoadLim, PEalarm%, AlarmDly). Remember to disable TempLim

if temperature measurement has not been connected and to disable LoadLim if

the load current measurement has not been connected.

Set the AUX. ALARM mask (SETUP→AUXalarm), which defines the faults that

cause the AUX. ALARM relay to trigger.

Perform bus scanning using the menu SETUP→Network Scan. ENSURE that all

installed units (IC, TC, RD, PEC) are identified and have the correct addresses,

and that the measured PE resistances correspond to the physical lengths of the

installed earthing wires.

During network scanning, the resistances from all channels of all PEC-01

units connected to the system are measured. Therefore, performing a

Network Scan / Network View is permitted in medical locations only when

there is no activity in the premises to be monitored.

When needed, set the range for CLT-01 unit’s current loop output

(SETUP→LoopCurr)

When needed, set the TCP/IP parameters (SETUP→IP Settings)

A more detailed description of the configuration is provided in the Manual section “SETUP

menu”.

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USE

GENERAL

The Superintend IMD MED consists of several separate modules integrating into an

insulation monitoring system through an electronic communication bus. The system

includes the following components:

The IM-01.MED unit is the central unit of the system. It performs most of the

measurements independently and controls the operations of the other units and

the alarm relays. The IM-01.MED unit is installed in the switchboard.

The PEC-01 unit measures the continuity and resistance, if needed, of the

earthing wire of wall socket chains. A maximum of six separate chains to be

monitored can be connected to one unit. The system may contain a maximum of

16 PE units. The PEC-01 unit is installed in the switchboard.

The TC-01 and IC-01 units are alarm units to be installed in the operating

premises. The TC-01 unit gives an alarm of the isolation transformer overload or

over temperature, and the IC-01 unit gives an alarm of insulation errors or a

faulty earth conductor. One system can include 16 of each alarm units.

The RD-01 unit is an alarm unit to be installed in the operating premises. The

unit gives an alarm of the isolation transformer overload or over temperature,

insulation errors or a faulty earth conductor. One system can include 5 RD-01

alarm units.

The CLT-01 unit is a current loop transmitter for insulation resistance with a

standard 0…20 / 4…20 mA current message. It is installed in the switchboard.

IM-01.MED UNIT

The IM-01.MED unit is the central unit of the system and the master of the RS-485 bus

connected to it. The IM-01.MED contains the user interface of the entire system, and it

controls all TC-01, IC-01, RD-01, PEC-01, and CLT-01 units connected to it. The IM-

01.MED unit continuously reads the measurement results of the PEC-01 units and

determines any fault situations based on them. The error notifications are displayed on

the screen of the IM-01.MED unit and in the TC-01, IC-01 and RD-01 units, and the fault

information can be forwarded to another user-defined system through alarm relays. All

alarm parameters are set through the user interface of the IM-01.MED system.

In addition, the IM-01.MED unit maintains three separate log files on the microSD

memory card if the memory card is inserted in the card slot and enabled in the Setup

menu. They are Excel-compatible text files, which can be transferred to any computer

for more detailed analysis. For more detailed information, see section “Log files”. If the

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memory card function is not enabled, only the most recent information of each log entry

is stored in the device memory. The information that is not stored on the memory card

will not be preserved in the memory if the device loses operating voltage.

Measurement values can be monitored and settings can be changed using the

Modbus/TCP protocol via the IM-01.MED unit’s Ethernet connection. For this purpose, the

device RJ45 must be connected to the local area network and the TCP/IP parameters

must have been configured in the Setup menu.

The IM-01.MED unit independently measures the insulation resistance and capacitance of

the IT network to be monitored, in relation to protective earth. The measurement is

performed by feeding two separate low-frequency alternating voltages between the

network and the PE conductor. These generate a low current that travels through the

insulation resistance and capacitance to be measured. The insulation resistance and

capacitance are calculated by measuring the current amplitude and phase. In addition,

the device measures the secondary current and temperature of the isolation transformer

if the current transformer and the NTC/PT100 sensor have been connected to the

measurement couplers reserved for them and have been enabled in the Setup menu.

The system functioning can be tested by pressing the T button of the IM-01.MED unit

when the IM-01.MED unit displays the Monitor menu. The device will test the

functioning of the internal measurement circuit. More detailed information on this is

provided in the description of the Monitor menu.

MENU STRUCTURE

The menus of the IM-01.MED unit have three main levels: MONITOR, SETUP and ALARM.

The button is used to navigate between the main levels when the topmost parameter

of each menu is highlighted on the screen. The first item of the menu is accessed by

pressing the B button at any menu level item. The LED lights, in addition to the LCD

display, indicate the selection in the menu in question.

The menus can be browsed up and down with the and buttons. Access to the

Setup menu is password-protected.

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The Monitor menu is the default of the IM-01.MED unit, to which the system returns in

20 minutes after the last time a button was pressed, or after a sufficient number of

presses on the B button in any screen mode.

The Monitor menu mainly has one level. Nearly all information to be displayed can

be viewed by browsing the menu with the and buttons.

The Alarm menu has two levels. The first level displays the reason for the alarm

and the second level shows the alarm start time, the measured parameters, and

alarm limits.

The Setup menu mainly has two levels. The first level displays the valid

parameter, which can be changed on the second level.

Hereafter, the screen modes are called as follows:

The main level of the menu is the topmost menu level (MONITOR, SETUP and

ALARM)

The menu level is the sub-level of the aforementioned, and it is browsed using

the and buttons

The screen mode is the mode following the menu level, and it displays the value

of the parameter/time; also displays a stopped AutoScroll mode. The screen

mode can be accessed from the menu level by pressing the T button.

The AutoScroll mode is in use in the Setup menu items where there are several

parameters to display. In that case, the displayed parameters change every few

seconds. You can stop the display with the and buttons and return from the

screen mode to the AutoScroll mode with the B button. Use the T button to go to

the edit mode or screen mode.

The Edit mode is a Setup menu mode where the parameters to be displayed can

be changed. In the Edit mode, the parameter to be changed flashes and it can be

changed with the and buttons. If there are several parameters to be

changed in the same screen, you can move to the next one by pressing the

button. After the editing is completed, press the T button, after which the values

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given must be approved by selecting “Yes” in the Confirm menu and pressing T.

By selecting “No” or pressing the B button in the conformation stage you return

to the previous mode without saving the changes.

As a rule, the buttons function as follows:

Moving to the next parameter on the menu level and screen level. Reduces the

parameter on the edit level. In the AutoScroll mode, stops the display.

Moving to the previous parameter on the menu level and screen level. Increases

the parameter on the edit level. In the AutoScroll mode, stops the display.

Moving to the next menu on the main level. Moves to the next editable

parameter on the edit level.

A general “approval button”. On the menu level, takes you to the AutoScroll or

edit mode. On the edit level, approves the changes made. Pressing the button

in the first three items of the Monitor menu and approving the start of the test

begins the system test.

A general “reject button”. Returns to the previous mode from all modes.

Pressing the B button an appropriate number of times takes you to the default

mode of the main menu (insulation resistance/capacitance) from any mode.

MONITOR MENU

The Monitor menu is the default menu of the IM-01.MED unit during use. All modes of

the menu always return to the topmost item on the Monitor menu after 20 minutes from

the last press of a button.

The following measured parameters are available in the Monitor menu screen:

IT network’s insulation resistance and capacitance in relation to protective earth.

Displayed in kOhms and micro farads.

Temperature of the isolation transformer in degrees.

Secondary current of the isolation transformer. Displayed in a percentage of the

transformer’s nominal current.

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The number of the TC-01, IC-01, RD-01 and PEC-01 units configured in the

system and, if needed, the software versions of the units and IM-01.MED.

The manual resistance measurement of the PEC-01 units can be started.

During the manual resistance measurement, test current pulses are fed into

all channels of all PEC-01 units connected to the system. Therefore, the

manual resistance measurement is permitted in medical locations only when

there is no activity in the area to be monitored.

The intensity of the background light can be adjusted to four different levels.

(LOW / MED-LOW / MED-HIGH / HIGH)

Time and date

All fixed alarms can be acknowledged on one go.

The default display is insulation resistance and capacitance. Other parameters and

functions can be viewed by using the and buttons.

The system test is started from the Monitor menu by pressing T and then selecting Y in

the Start test menu and pressing T. This starts the test of the internal measurement

circuit of the IM-01.MED unit. If the test is completed successfully, the screen displays

momentarily the text Test OK; otherwise the text shown in Test FAILED, and an

insulation fault alarm is given to indicate that the insulation resistance can no longer be

measured.

The Monitor menu functions as follows:

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