VDH MC 785D, Operating Manual

Page 1: ...Type MANUAL Number of pages 20 Version V1 0 File Do021171 MC785D 0 100 C v10 EN wp8 Software MC785D1 0 100O C V1 00 By BJB Date 06 06 2002 VDH Products BV Roden Holland Signed File Doc 02 MC 785D 0 10...

Page 2: ...no liability for eventual mistakes or errors and has the right to change this document without notice Table of contents 1 Technical specifications 3 2 Functional specifications 4 3 Control of the the...

Page 3: ...230 Vac 50 60 Hz 10 5 Used power 9 VA Store temperature 20 60 C Operation temperature 20 50 C Operating rel humidity 10 90 RH not condensing Accuracy 0 5 of the range Front Display 4 number digital d...

Page 4: ...nected As more than one sensor is set active the MC785D controls on the average temperature of these sensors A maximum for four different setpoints can be programmed The MC785D thermostat has standard...

Page 5: ...temperature of sensor 1 is shown and that the sensor is switched on Sensors that are switched on are used for the control switched off sensors not If more sensors for a thermostat are switched on the...

Page 6: ...It is possible to make other combinations between sensors setpoints and relays For these advanced programming function please see chapter 8 Advanced Programming If during 30 seconds no key is touched...

Page 7: ...0 0 5 0 0 Setting of the alarm P 41 P 42 P 43 P 44 P 45 P 46 P 47 P 48 P 49 Type temperature alarm 0 No alarm 1 Absolute alarm 2 Relative to setpoint Minimum alarm temperature Maximum alarm temperatu...

Page 8: ...V out at 10 V out at Proportional band Offset prop band Intergral value 999 gives only P Function analog output 2 0 Average control temp 1 Setpoint 2 P I cooling 3 P I heating 0 V out at 10 V out at P...

Page 9: ...ing differential cooling and switches off if the temperature is below setpoint offset cooling The heating switches on if the temperature is lower than the setpoint offset heating differential heating...

Page 10: ...al Parameters the control will stop or continue An alarm can be caused by Temperature alarm tLO Minimum alarm temperature tHI Maximum alarm temperature External alarm FE External alarm Sensor failure...

Page 11: ...YES Parameter table Number Description Range Value Default General A 001 A 002 A 003 A 004 Advanced programming active Software version number Serial number Production date 0 1 year wk 0 Number of the...

Page 12: ...tat 2 3 9 thermostat 2 4 10 thermostat 3 4 11 thermostat 1 2 3 12 thermostat 1 2 4 13 thermostat 1 3 4 14 thermostat 2 3 4 15 thermostat 1 2 3 4 Relay 3 Relay 4 Relay 5 0 15 0 15 0 15 0 15 1 1 1 1 Fun...

Page 13: ...ntrol off at maximum alarm Alarm setting thermostat 4 Minimum alarm temperature Maximum alarm temperature Minimum alarm delay Maximum alarm delay Control off at minimum alarm Control off at maximum al...

Page 14: ...og output 1 A 810 A 811 A 812 A 813 A 814 A 815 A 816 Function analog output 1 0 Control temp thermostat 1 1 Control temp thermostat 2 2 Control temp thermostat 3 3 Control temp thermostat 4 4 Setpoin...

Page 15: ...hermostat 2 6 Setpoint thermostat 3 7 Setpoint thermostat 4 8 Temperature sensor 1 9 Temperature sensor 2 10 Temperature sensor 3 11 Temperature sensor 4 12 P ID cooling thermost 1 13 P ID cooling the...

Page 16: ...peration Manual Document nr 021171 Version V1 0 MC 785D 0 100O C Client General Page 16 of 20 9 Front views Front view MC 785 D wall mount drawing 961462 Front view MC 785 D panel mount drawing 981698...

Page 17: ...Operation Manual Document nr 021171 Version V1 0 MC 785D 0 100O C Client General Page 17 of 20 10 Connection diagrams Connection diagram MC785 D wall mount drawing 961461...

Page 18: ...Operation Manual Document nr 021171 Version V1 0 MC 785D 0 100O C Client General Page 18 of 20 Connection diagram MC785 D panel mount drawing 981710...

Page 19: ...Operation Manual Document nr 021171 Version V1 0 MC 785D 0 100O C Client General Page 19 of 20 11 Dimensions Dimensions Wall mount drawing 940024...

Page 20: ...Operation Manual Document nr 021171 Version V1 0 MC 785D 0 100O C Client General Page 20 of 20 Dimensions Panel mount drawing 961271...