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Control Unit MDC 22 VTK - TR -BA- 171e - 1 - User Man u al MDS 3080 -V You can de - /acti v ate th e control lamp s for adjust. It makes no diff erence during th e adjust (as above). B ut i t affec ts the la mps outsi de…

Control Unit MDC

VTK-TR-BA-171e-1 - User Manual MDS 3080-V

4.2 Front Side

Fig. 1: Front Side

1 Mounting hole

2 LC display

3 Keypad with 12 soft keys

4 Control lamp for First Drop

(“function”) “red”

5 Control lamp for adjust “green“

6 Control lamp for adjust „red“

7 Control lamp for status of

heating „red“

LC display:

Data, service intervals and menu options are shown in the two lines of the illuminated LC display

(LCD = “liquid crystal display”). The current menu option appears in the upper line. The lower line

contains the current parameter value for dispensing, according to numerical data to be modified.

Keypad with 12 softkeys:

Menu options to control the system are selected by means of these keys.

Details for changing parameters etc. are explained in a following chapter (see paragraph 4.4,

page 25).

Control lamp for First Drop (“function”):

This red LED indicates, if there is a problem during the first drop adjust. It is also ON during the

start-up of the MDC, while the power supply unit is initialized.

Control lamps for adjust (“green” and “red”):

During the adjust, these two control lamps indicates the adjust result that is internally monitored:

• Green: the adjust value is OK. Press [Enter]-key to confirm it.

• Red: the adjust value is too high. You have to lower it according to the instructions of this

manual (see paragraph 6.5 "The Adjust Process", page 52).

Control Unit MDC

VTK-TR-BA-171e-1 - User Manual MDS 3080-V

You can de-/activate the control lamps for adjust. It makes no difference during the adjust (as

above). But it affects the lamps outside of the adjust (as below).

Outside of the adjust: (if the control lamps for adjust are activated)

• Red: the MDC detects an error.

• Green: the valve detects that the adjust value falls inside the adjust range.

Outside of the adjust: (if the control lamps for adjust are deactivated)

• Red: the MDC detects an error (except for an adjust error).

• The green adjust-LED stays OFF.

To de-/activate the control lamps for adjust, enter the service code 1100 (see paragraph 4.5.6

"Submenu “Service-Option”", page 33). Alternatively, you can use the serial command

SETADJLED:OFF/ON (see paragraph 8.1.2.2 "Explanations", page 88).

Control lamp for status of heating:

This red LED indicates the activity of the heating.

Heating activated – LED ON

Heating deactivated – LED OFF

Heat-up phase – LED flashes

Control Unit MDC

VTK-TR-BA-171e-1 - User Manual MDS 3080-V

4.3 Back Side

Fig. 2: Back side

1 Thermocouple „Type K“ socket

2 Mains switch

3 AUX socket

4 Socket for heating

5 RS-232C interface (9-pin)

6 Sensor socket

7 Actuator socket

8 PLC-interface (15-pin)

9 Mains connector

Thermocouple socket (TCK):

This element is intended for connection of thermocouples “Type K“.

Mains switch:

By means of this illuminated switch, the unit is switched ON and OFF.

AUX socket:

This connector can be used for supply of an external device (e.g. an optocoupler) or to control

certain parameter setups or scenarios (see paragraph 7.9.3 "Scenario Selection with Select Pins",

page 67). It is one of the three interfaces of the control unit (see paragraph 8.3, page 128 for the

pin assignments).

Actuator socket:

For the connection of the actuator cable.