Toshiba Tcb-acredu1-e User manual

Redundancy-Box

TCB-ACREDU1-E

AIR-COND Klimaanlagen-Handelsgesellschaft m.b.H.

Haushamer Straße 2

A-8054 Graz-Seiersberg

www.air-cond.com

Redundancy-Box

TCB-ACREDU1-E

AIR-COND Klimaanlagen-Handelsgesellschaft m.b.H.

Haushamer Straße 2

A-8054 Graz-Seiersberg

www.air-cond.com

2 I TOSHIBA

VERSION E

TOSHIBA I 3

CONTENTS

2SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1 SETTING AND ENSURE THE VOLTAGEFREE STATE BEFORE STARTING WORK . . . . . . . . . . . . . . . . . 4

2.2 FIVE SAFETY RULES FOR WORK IN AND ON ELECTRICAL INSTALLATIONS . . . . . . . . . . . . . . . . . . . 5

3IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.1 UNIT DESIGNATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.2 NAMEPLATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4PRODUCT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.1 APPLICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.2 DELIVERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.3 MOUNTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

5TECHNICAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

5.1 VOLTAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

5.2 CLAMPING POINTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

5.3 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

5.4 DIMENSIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

6COMMISSIONING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

6.1 INSTALLATION AND FUNCTIONAL CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

6.2 SWITCHING ON THE REDUNDANCY BOX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

7MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

8OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

8.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

8.2 PASSWORD LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

8.3 TO SWITCH FROM OPERATOR TO ADMINISTRATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

8.4 TO SWITCH FROM ADMINISTRATOR TO OPERATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

8.5 START SCREEN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

8.6 MAIN IMAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

8.7 OPERATION HOURS SWITCHOVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

8.8 TEMPERATURE STAGE FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

8.9 TEMPERATURE ALARM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

8.10 OPERATION HOURS RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

8.11 SENSOR MONITORING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

8.12 CONFIGURING NETWORK SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

8.13 WEB ACCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

8.14 REGISTRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

8.15 VIEW SYSTEM INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

8.16 USE WEB SERVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

8.17 VIEW AND EDIT VARIABLE MEMORY TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

8.18 MENU NAVIGATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

8.19 CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

8.20 DECLARATION OF CONFORMITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

9CHANGE HISTORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4 I TOSHIBA

2 Safety instructions

2.1 Setting and ensure the voltage-free state before starting work

DANGER

Hazardous voltage. Will cause death or serious injury.

• Cut o power supply before starting work the system and device.

• Secure the unit against reclosing.

• Determine voltage.

• Earth and short circuit.

• Cover or shield any adjacent live parts.

DANGER

Hazardous voltage. Will cause death or serious injury.

Commissioning and operation of a unit / system may only be performed by qualied

personnel. Qualied personnel within the meaning of the safety notices of this

documentation are persons who are authorized to take equipment, systems and circuits

in accordance with established safety procedures in commission, ground and label.

TOSHIBA I 5

2.2 Five safety rules for work in and on electrical installations

When working in and on electrical installations apply, in order to avoid electrical accidents certain rules,

which are summarized in the ve safety rules according to standard series DIN VDE 0105:

1. Disconnect

2. Protect against reconnection

3. Determine the absence of voltage

4. Earth and short circuit

5. Cover or enclose adjacent components that are still live

These ve safety rules are applied prior to working on electrical systems in the above order. According to

the work they will be canceled in the reverse order.

For electricians, these rules are assumed to be known.

Explanations

1. According to the present operating voltage, dierent lengths separation sections are to be made

between energized and de-energized system component.

Unlocking is referred to in the electrical equipment and disconnect from live parts.

All-pole disconnection can be achieved by, for example:

- Turn o the circuit breaker

- Turn o the motor protection switch

- Unscrewing fuses

- Dragging NH fuses

2. In order to ensure that the branch remains unlocked during the work, it must be secured against

accidental reconnection. This can be achieved by e.g. the motor and system protective switch in the o

state by lock or by unscrewing the fuses is secured by lockable blocking elements.

3. To determine the absence of voltage using appropriate test equipment. For example, two-pole

voltmeter.

Single-pole test pins are not suitable. The supply must be observed at all poles (phase to phase, phase

to N / PE).

4. The earth and short circuit is greater than 1 kV mandatory only on systems with a nominal voltage.

In this case always rst the earth and then connect with the short-circuited active parts.

5. To avoid to touch inadvertently adjacent live parts during work, these parts have to be covered and

safeguarded.

6 I TOSHIBA

3 Identication

3.1 Unit designation

The Toshiba Redundancy Box TCB-ACREDU1-E is a compact control unit and is shipped as a unit.

3.2 Nameplate

TOSHIBA I 7

4 Product description

4.1 Application

The Toshiba Redundancy Box TCB-ACREDU1-E enables a trouble-free and operating hours dependent

changeover of two indoor units. Once one of the two indoor units has a fault, the second indoor unit is

switched on immediately. With a temperature sensor the room temperature is monitored on the

specied setpoint via a two-step control. The second indoor unit is switched on, depending on the

control deviation. The temperature sensor is monitored against short-circuit and probe break. With an

external release contact the Redundancy box can be released for operation. Two potential-free contacts

Q3 for unit 1 and Q4 for unit 2 show the operation with closed contact and in case of failure with ashing

1 Hz of each contact.

These switching and control functions are handled by a PLC control system. All relevant operating

parameters can be set and activated via the menu on the controller display.

4.2 Delivery

The factory setting of Redundancy box is wired with the two control lines, each 8 m, for unit 1 and unit 2

nished internally. The control lines are provided with CN 61 plugs for connection to the respective

indoor unit. Also, a temperature sensor, PT100 with 3 m cable length is installed. The supply of

Redundancy box is tted on site over 230VAC with a fuse of 13A, the cable inlets are above.

4.3 Mounting

The installation-friendly small distribution can be very simple and assembled in a few steps. This permits

a particularly comfortable and rapid installation of the Redundancy box. Changing the door opening

direction can be carried out quickly without having to remove the lid or other housing parts. Further-

more, some knockouts are provided with centering points for cable inlets. Also, the plumbing of the

housing cover and the door is possible by default, without having to use additional components.

8 I TOSHIBA

5 Technical specications

The plastic housing RAL 7035 is in the high degree of protection IP65 Protection class II with transparent

door and has the appropriate cable entries. In chassis all components are pre-installed and ready to use

only the power supply and possibly release or operational messages must be wired to terminals. For safe

operation of control the ambient temperature of 0°C till +50°C should neighter be undercut nor excee-

ded. The storage and the transport can take place in the areas of -40 ° C to + 50 ° C.

5.1 Voltage

The control voltage of the indoor units 1 and 2 is 12VDC and is decoupled via relay terminal.

• Feed 230VAC

• Internal Control Voltage 24VDC

• Enable contact externally 24VDC

• Control voltage indoor units 12VDC (CN61 connector)

5.2 Clamping points

The terminals for the feed and the release contact are externally labeled as the wiring diagram. Both relay

outputs (Q3 & Q4) can be loaded with a maximum of 230VAC / DC and 16A. The terminals must not be

tightened too much. Tightening torque: 0.5 Nm to 0.6 Nm to the relay outputs Q3 & Q4.

• X1 1,5 mm2Feed (1;2;PE) Spring-loaded

• X2 1,5 mm2Enable contact externally (1;2) Spring-loaded

• Q3/Q4 1,5 mm2Operation / Fault (1;2) Screw

TOSHIBA I 9

5.3 Installation

With the two prefabricated connecting cables to unit 1 and unit 2 and, at the end xed connector D1 a

polarized electrical connection is ensured. Both lines are marked as follows: U1 stands for unit 1 and U2

is for unit 2. The connectors are plugged into the motherboard on contact CN61 and the shielding line is

attached on the unit.

5.4 Dimensions

Dimensions (mm)

10 I TOSHIBA

6 Commissioning

Commissioning should be done only by qualied personnel (Toshiba and Distributors).

6.1 Installation and functional check

Make sure that all electrical connections are in order before you take your Redundancy box in operation:

• Visual inspection of connections

• Control of the system for damage and pollution

• Open locking device

6.2 Switching on the Redundancy box

When all installation inspections were successfully carried out, switch on the supply voltage and measure

them. The supply voltage should be 230 VAC.

Only after that close the locking device and the unit is ready for operation.

After switching on, the control goes through internal functions. After a successful start, the splash screen

appears on the display for a few seconds. The control program of the Redundancy box is now in operati-

on.

TOSHIBA I 11

7 Maintenance

On the Redundancy box, no special maintenance is required in principle.

The electronic control system itself is built largely maintenance-free. Due to the mechanical stress of the

contactors and relays, these should be checked annually. Whenever possible, malfunctions are displayed

by the display. Defective parts must be replaced by qualied personnel in compliance with the applicab-

le safety regulations.

CAUTION

All maintenance and inspection work on the Redundancy box may only be carried out by

qualied and trained personnel in compliance with the statutory safety regulations.

12 I TOSHIBA

8 Operation

8.1 General

Redundancy box is equipped with a display, which is used to display the current status of the system as

well as for control functions and the setting of system data in variables. Via the display, you can

simultaneously monitor the system status and intervene by advancing with the cursor keys and input

elds directly in the process sequence. In addition, the PLC has an integrated web server which you can

use from a conventional PC or a mobile unit.

With this method you access to the PLC control, using an Internet-connected unit (conventional PC,

tablet or smartphone with Web browser function). This works on the IP address of the PLC.

Make sure that your PC or mobile unit is connected to the desired Redundancy box safely.

The web user access is congured and activated.

Display: It is a monochrome display with 6 lines and 16 characters per line. The backlight can be

shown in three colors (white, orange and red).

Cursor

ESC

OK

CAUTION

Do not use any pointed or sharp objects to operate, so that the plastic surface of the

control is not damaged.

TOSHIBA I 13

8.2 Password level

The operation of the system is divided into the following groups (access levels):

The access levels apply to the PLC control, wherein access via a web server is also possible.

PLC access:

User level User name Password Authorizations

USER guest - No write permissions

Admin Administrator AIRCOND All permissions

The passwords of dierent levels are managed by an administrator (AIR-Cond).

After completion of the administrative work it is necessary to log out again.

WEB access:

User level User name Password Authorizations

Admin Administrator TCC All permissions

Registration via LAN and a standard web browser at the default IP address:

http://192.168.0.1 at a remote access should the port: 8080 be approved.

14 I TOSHIBA

8.3 Switching from operator to administrator

To switch the control in access level of operator to administrator, perform the following steps:

1. Move the cursor in the main menu of the programming mode on "": Cursor UP or DOWN

2. Take over "": Button OK

3. Move cursor to ''": Cursor button UP or DOWN

4. Take over "": Click OK to conrm. The display appears as follows:

5. Pressing cursor keys to navigate through the alphabet and select letters:

current Password= AIRCOND

6. Conrm password: Button OK

The control switches now to access level "Administrator" and returns to the main menu.



Setup 

Network 

Diagnosis 



Message cong 

Home Screen

LCD 

Menu Language

Switch to ADMIN

ADMIN-Password

TOSHIBA I 15

8.4 Switching from administrator to operator

To switch the control in access level of Administrator on operator, perform the following steps:

1. Move cursor in the main menu of the programming mode on "": Cursor button UP or DOWN

2. Take over "": Button OK

3. Move cursor to ''": Cursor button UP or DOWN

4. Take over"": Button OK

The control switches now to access level "operator" and returns to main menu.



Start

Programming 

Setup 

Network 

Diagnosis 

Map 



Message cong 

Home screen

Clock 

LCD 

Menu language

Swith to OP 

16 I TOSHIBA

8.5 Start screen

The gure shows the welcome screen of the redundancy box with the respective program version

SW: V1.1. The welcome screen will remain for 5 seconds with the orange backlight and then jumps

directly to the start screen.

8.6 Main image

At the main image you haves an overview of the system and at the same time all the relevant information

of the two indoor units, ie status and equipment mode. This page is without control panels.

OFF: Unit is switched o

RUN: Unit in operation

STATUS OK: Unit has no errors

STATUS FAULT: Unit has an error (light blinks red)

Version

OK

FAULT

RUN

OFF

TOSHIBA I 17

8.7 Operation hours switchover

In this image, the operating hours of the two indoor units are displayed and with the Function On / O

the hours of operation change-over is activated / deactivated. The switching time and the time

remaining until the changeover takes place, is shown. To make a change, you have to press the ESC

button for 5 seconds. The cursor jumps to the input eld and with pressing the OK button, the eld is rea-

dy for input. To change values and to change elds, it has to be navigated with the cursor. The modied

value must be conrmed with OK. Leaving from the input function is performed by pressing the ESC key.

Thus, the inputs are activated.

8.8 Temperature stage function

With this image, the parameters of the temperature-dependent switch and the release are dened. By

Function On / O this switching can be enabled / disabled. At higher or lower temperature, the second

indoor unit is connected or disconnected. The actual temperature value is also displayed. The procedure

to carry out changes, has been described in section 8.7.

ON: Temperature at which the unit 2 is turned on

OFF: Temperature at which the unit 2 is turned o

Hours

Remaining

time

Function

On/O

switchover

time

Current

temperature

Setpoints

Function

On/O

ON and OFF

18 I TOSHIBA

8.9 Temperature alarm

On this page the temperature value will be set, which sounds an alarm when exceeded. The activation of

this alarm is again to be parameterized with the function On / O. The procedure to carry out changes,

has been described in section 8.7. At fault both contacts (Q3, Q4) ash, each with 1 Hz. U1 and U2 remain

in operation.

8.10 Operation hours Reset

The reset of the operating hours takes place in this image. Air conditioning unit U1 and U2 can be opera-

ted separately. After a reset, the counter value is set to "0" and the operation hour counting begins anew.

The procedure to carry out changes, has been described in section 8.7.

Setpoints

Current

temperature

Function

On/O

Hours

Function

On/O

TOSHIBA I 19

8.11 Sensor monitoring

The temperature sensor PT100 is, once it is activated by the function 8.7 and 8.10, monitored against

short circuit and wire break. The alarm is displayed in the alarm box. At fault both contacts (Q3, Q4) ash,

each with 1 Hz.

20 I TOSHIBA

8.12 Conguring network settings

The network settings such as IP address, subnet mask and gateway can be congured only with the

access level "administrator". With the access level "operator" you can only view the network settings, not

change. In order to carry out this change, the controller has to be brought into the STOP state. For this

purpose, change to the main menu of the control, where the stop function is marked in dark. By

conrming by OK key, you arrive at the inquiry "Stop program" YES / NO, which you conrm with YES. This

allows you to change the network parameters.

The control provides a menu command to congure the network settings.

1. Turn the control to the programming mode (stop and YES).

2. Move the cursor to„„.

3. Press OK to conrm„„.

4. Move the cursor to„„.

5. Press OK to conrm„„.

6. The display shows only the default IP address of your controller.

To change the setting, press OK. When the cursor appears as a ashing solid square, move it using the

arrow keys up or down to modify the number. To conrm your changes, press OK.



Start

Programming 

Setup 

Network 

Diagnosis 

Map 



IP-Addresse

M/S-mode set

Toshiba TCB-ACREDU1-E User manual

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