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User manual

 Document Nr. : 080631

 Version : V1.0

MC 785 KLIMA 0-100

C

 Client : General

 Page : 5 of 16

                                                                           

2.

Functional specifications

The  MC  785  KLIMA  has  the  following  control  functions:  cooling,  heating,  dehumidifying  and
humidifying. Further more the controller has an alarm relay, which is activated when the alarm levels
are exceeded or a sensor is broken.

The MC 785 KLIMA has two analog outputs with a range of 0/+10Vdc, these are controlled by three
controllers. 
With  Out-1  is  controlled  by  Control-1  and  Out-2  is  controlled  by  the  highest  value  of  Control-2  and
Control-3.
The  functions  of  these  controllers  are  programmable  as  measuring  signal,  set  point  signal  or  a  P(I)
control for the cooling, heating, humidifying or dehumidifying.

The controller has two digital input contacts. 
The first contact is used as day/night input and the second contact is used as external alarm.

The selection of the above mentioned settings is done  via the Internal Parameters.

Summary of Contents for MC 785 KLIMA

Page 1: ...080631 Type MANUAL Number of pages 16 Version V1 0 File Do080631 MC785 KLIMA 0_100 v10 EN wpd Software MC785KLIMA100 Version V1 00 By HN Date 14 03 2008 VDH Products BV Roden Holland Signed File Doc...

Page 2: ...cts BV does not accept any liability for eventual mistakes or errors and retains the right to adapt or change this document without notice Table of contents 1 Technical specifications 3 2 Functional s...

Page 3: ...ty range 0 100 RH per 0 1 RH Power supply 230 Vac 50 60 Hz 10 5 Power consumption 9 VA Operating temperature 20 50 C Operating rel humidity 10 90 RH not condensing Accuracy 0 5 of the range Front Disp...

Page 4: ...mmable Relay outputs RY1 Extra relay C NO NC 250Vac 10A not inductive Options extra relay adjustable with parameter 20 P20 0 Fail safe alarm normal C NO is closed and during alarm C NC is closed P20 1...

Page 5: ...alog outputs with a range of 0 10Vdc these are controlled by three controllers With Out 1 is controlled by Control 1 and Out 2 is controlled by the highest value of Control 2 and Control 3 The functio...

Page 6: ...ng and can be changed with the UP or DOWN keys By pressing the SET key again the set point appears continuously in the display If the instrument is in the day mode DAG LED on and the night set point n...

Page 7: ...during 30 seconds no key is touched the display turn back to the normal operation mode Parameter table Number Description Range Unit Default P 01 P 02 P 03 P 04 P 05 P 06 P 07 P 08 Differential coolin...

Page 8: ...P 41 P 42 P 43 P 44 P 45 P 46 Type temperature alarm 0 No alarm 1 Absolute alarm 2 Relative to setp Minimum alarm temp Maximum alarm temp Minimum alarm delay Maximum alarm delay Temperature control of...

Page 9: ...4 P I cooling 5 P I heating 6 P I dehumidifying 7 P I humidifying 0 V output at 10 V output at Proportional range Offset prop range Interval value 999 gives only P 0 7 100 100 100 100 0 1 15 15 15 1 9...

Page 10: ...emperature is lower than set point offset heating differential heating and switches off id the temperature is higher than set point offset heating Operation of the humidifying and dehumidifying functi...

Page 11: ...larm During alarm the alarm LED on the front flashes Depending on the setting of the Internal Parameters the control will stop or continue An alarm can be caused by Temperature alarm tLO Minimum tempe...

Page 12: ...manual Document Nr 080631 Version V1 0 MC 785 KLIMA 0 100 C Client General Page 12 of 16 8 Front Front view MC 785 KLIMA wall mounting drawing 960581 Front view MC785 KLIMA panel mounting drawing 961...

Page 13: ...ion V1 0 MC 785 KLIMA 0 100 C Client General Page 13 of 16 9 Connection diagrams Connections MC 785 KLIMA wall mounting drawing 021743 Several RH sensors can be connected RH95 2 LC95 2 or RH970 humidi...

Page 14: ...User manual Document Nr 080631 Version V1 0 MC 785 KLIMA 0 100 C Client General Page 14 of 16 Connections MC785 KLIMA panel mounting drawing 021742...

Page 15: ...User manual Document Nr 080631 Version V1 0 MC 785 KLIMA 0 100 C Client General Page 15 of 16 10 Dimensions Dimensions MC785 KLIMA wall mounting drawing 940024...

Page 16: ...User manual Document Nr 080631 Version V1 0 MC 785 KLIMA 0 100 C Client General Page 16 of 16 Dimensions MC785 KLIMA panel mounting drawing 961271...

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