background image

28 (45)

Field Wiring

3 wire transducer with 4-
20 mA or 0-20 mA output

Connect an external 250 

 ½ Watt 1% load 

resistor in parallel 
between the universal 
input terminal and 

0V

 to 

provide a return path for 
the transducer signal 
current.

External power supply for 
field device (depends on 
field device requirements) 
and 24 V external power 
supply for controller.

Connect the negatives or 
commons of both power 
supplies to the 0V 
terminal of the controller.

3 wire transducer with 4-
20 mA or 0-20 mA output

Connect an external 250 

 ½ Watt 1% load 

resistor in parallel 
between the universal 
input terminal and 

0V

 to 

provide a return path for 
the transducer signal 
current.

External power supply for 
field device (depends on 
field device requirements) 
and 12 VDC external 
power supply for 
controller.

Connect the negatives or 
commons of both power 
supplies to the 0V 
terminal of the controller.

J or K Thermocouples

When using J or K 
thermocouples, install a 
x200 low offset amplifier.

24 VAC or VDC power 
supply to controller.

The controller provides 
the 12 VDC and a 
maximum current of 
250 mA to the field 
device.

J or K Thermocouples

When using J or K 
thermocouples, install a 
x200 low offset amplifier.

12 VDC power supply 
common to field device 
and controller.

Table 4  Analog Input Wiring (Continued)

Type of field device Power source

Wiring diagram

24V

0V

 UI1

ȍ

Controller

Power Supply

+

-

24 VAC or VDC
Power Supply

+

-

+

Signal

-

Field Device

+12

0V

 UI1

ȍ

Controller

Power Supply

+

-

12VDC
Power Supply

+

-

+

Signal

-

Field Device

+12

Signal

0V

J or K 
thermocouple

+

-

+

-

x200 
instrumentation 
amplifier

UI#

0V

24 V

0 V

+12

24 V

Controller

+12

Signal

0V

J or K 
thermocouple

+

-

+

-

x200 
instrumentation 
amplifier

0 V

12 
VDC

UI#

+12

 0V

Controller

Summary of Contents for OpenBAS-HV-NX10 Series

Page 1: ...Installation Manual Building Automation Controller and HVAC Automation Solution LT 2201 Rev 4 4 October 2017 OpenBAS HV NX10 Series...

Page 2: ......

Page 3: ...K ETH3 17 3 5 DIP Switches 17 3 6 USB 18 3 7 Reset and Download Buttons 18 3 8 Battery 18 3 9 Enclosure Dimensions 19 3 10 Assembly 20 3 11 Mounting the Enclosure 21 4 0 Field Wiring 22 4 1 Wiring the...

Page 4: ...12 Fit the circuit board in enclosure 20 Figure 13 Enclosure mounted on DIN rail circuit board not shown 21 Figure 14 Enclosure mounted on DIN rail back view 21 Figure 15 Power supply 24 VAC or 24 VD...

Page 5: ...10 Series Accessories 8 Table 3 OpenBAS HV NX10 Series Compatible Modules 9 Table 4 Analog Input Wiring 25 Table 5 Wiring a 1000 temperature sensor 29 Table 6 Digital Input Wiring 31 Table 7 Analog Ou...

Page 6: ...6 45 List of Tables...

Page 7: ...s unified platform for automating HVAC and mechanical rooms as well as incorporating energy management features and lighting control to offer building owners and managers a seamless operation with th...

Page 8: ...egrated programmable logic controller and scheduler 18 hardware input output points 2 RS 485 field bus connections USB SPI and 1 C buses Operator interface with LCD and keyboard OpenBAS HV NX10D HVAC...

Page 9: ...eries Compatible Modules Model Description OpenBAS HV RF433R Wireless 433 MHz RF receiver that integrates up to 10 wireless transmitters and thermostats into OpenBAS HV NX10 series controllers Mounts...

Page 10: ...ion controllers should be in accordance with the Canadian Electrical Code or the National Electrical Code and comply with all local regulations Final acceptance is subject to the Local Authority Havin...

Page 11: ...driver under the tabs on the enclosure shown in Figure 2 in order to lift the tabs and remove the base Figure 2 Tabs on enclosure Caution Risk of Electric Shock Disconnect the mains power and disconne...

Page 12: ...the other hand lift the tabs so that you can remove the circuit board from the enclosure See Figure 3 Figure 3 Lift tabs and remove circuit board Attention Be careful not to break the tabs Do not appl...

Page 13: ...relationship between the 3 converters and the field bus connections labeled COM1 COM2 and COM3 P1 controls COM1 P2 controls COM2 and P3 controls COM3 Attention This job must be performed only by a ce...

Page 14: ...ACC RS232 is installed in P2 then COM1 functions as optically isolated RS 485 and COM2 functions as RS 232 Note P3 and COM3 are functional only on OpenBAS HV NX10D P1 P2 P3 COM1 COM2 COM3 Field bus co...

Page 15: ...s and jumpers To install a communication converter 1 Open the jumper 2 Remove the factory installed RS 485 module Figure 7 The jumper and RS 485 module are removed from P1 Jumpers Factory installed RS...

Page 16: ...2K128 and Wireless Receiver OpenBAS HV RF433R Connect the memory expansion cards to either one of the two terminals shown in Figure 9 They are labeled I2C and I2CB Note When connecting the I2C ports o...

Page 17: ...e included with the Ethernet controller See section 4 7 on page 37 for information on networking 3 5 DIP Switches The 8 DIP switches shown in Figure 10 are used with the 8 universal inputs ONLY when t...

Page 18: ...nual for information on upgrading controllers 3 8 Battery The battery is used only during power outages for real time clock and data retention The Mircom part number for the battery is BT 025 Install...

Page 19: ...described on page 21 4 Disconnect the old battery 5 Dispose of the used battery promptly Keep away from children Do not disassemble and do not dispose of in fire 6 Connect the new battery to the conne...

Page 20: ...ver in place On OpenBAS HV NX10L connect the OpenBAS HV LCD display to the connection labeled I2CB On OpenBAS HV NX10D connect the OpenBAS HV CORE2 display to the connection labeled N2 Make sure that...

Page 21: ...IN rail The mounting clip locks it in place Figure 13 Enclosure mounted on DIN rail circuit board not shown Figure 14 Enclosure mounted on DIN rail back view To remove the enclosure from the DIN rail...

Page 22: ...ess 4 2 Power Supply Connection The OpenBAS HV NX10 series controller can be powered 3 ways 12 Vdc 360 mA max 24 Vdc 450 mA max 24 Vac 50 60 Hz 500 mA max Notes Use either of the terminals labeled 0V...

Page 23: ...e controller has 8 universal inputs Depending on the application the universal inputs can be used the following ways Analog Inputs section 4 3 2 on page 24 0 10 VDC 0 5 VDC Caution An appropriate UL l...

Page 24: ...versal inputs operate correctly follow these guidelines Limit the distance between the analog sensor and the controller to 10 m 30 ft Mircom recommends shielded wire for noisy environments If this dis...

Page 25: ...devices to the analog inputs 24 PWR 24 DC AC PWR 0V GND Neg COM Attention When using 2 or more external power supplies connect the negatives or commons of both power supplies to the 0V terminal of th...

Page 26: ...and 24 V external power supply for controller Connect the negative or common of both power supplies to the 0V terminal of the controller 2 wire transducer with 4 20 mA or 0 20 mA output Connect an ext...

Page 27: ...ct an external 250 Watt 1 load resistor in parallel between the universal input terminal and 0V to provide a return path for the transducer signal current External power supply for field device depend...

Page 28: ...VDC external power supply for controller Connect the negatives or commons of both power supplies to the 0V terminal of the controller J or K Thermocouples When using J or K thermocouples install a x2...

Page 29: ...igital inputs have the following ranges ZERO 0 is valid for an input voltage between 0 to 4 VDC ONE 1 is valid for an input voltage between 8 to12 VDC Table 5 Wiring a 1000 temperature sensor Type of...

Page 30: ...s Digital inputs 3 8 can measure frequencies up to 10 Hz 600 pulses per minute The minimum pulse width detectable is 50 milliseconds Dry contact push buttons magnetic reed switches or PNP transistors...

Page 31: ...ital Input Wiring Type of field device Power source Wiring diagram Dry contact switch or high switched PNP transistor Note If you use a PNP transistor the voltage must be DC External 12 VDC power supp...

Page 32: ...uency transmitters microwave ovens and any other equipment that generates electromagnetic interference Keep a minimum distance of 30 cm 1 ft between analog output wiring and any conductor carrying mor...

Page 33: ...uts 24 VAC or VDC valve or damper with 1 10 VDC control input Attention If DC voltage with anything other than purely resistive load is used on the digital outputs then the appropriate protective devi...

Page 34: ...inals Only certified technicians should handle these terminals Attention Always install safety breakers and fuses according to the load and voltage and in accordance with Canadian Electrical Code or N...

Page 35: ...coil to suppress noise 24 VDC coil Install a 1N4007 reverse polarizing diode in parallel with DC solenoid coil to suppress flyback voltage 24 VDC lamp N A Table 8 Surge Protection on Relay Outputs Con...

Page 36: ...event damage to the boards in extreme cases especially if the OpenBAS HV NX10 series controller is inside an enclosure containing high voltage wiring 4 6 1 OpenBAS ACC DB9 OpenBAS ACC DB9 is a DB9 ada...

Page 37: ...uded cable OpenBAS NWK ETH3 can also connect to one of the RS 485 connections on the OpenBAS HV NX10 series controller as shown in Figures 24 and 25 See section 4 7 1 on page 37 for information on the...

Page 38: ...ending TX and RX These LEDs flash to indicate communication through the P3 port see section 4 6 on page 36 Reset button Press this button to restart the display Download button Press this button to lo...

Page 39: ...39 45 Field Wiring 4 9 Circuit Board LEDs PWR Is red when the unit is powered TX and RX Flash green to indicate communication through ports COM1 and COM2 Figure 27 LEDs PWR TX RX...

Page 40: ...and 5 Voltage current Load Form 125 VAC 5 A General Use NO NC 28 VDC 5 A Resistive NO NC Relay Outputs 2 3 4 6 7 8 Voltage current Load Form 125 VAC 5 A Resistive NO 125 VAC 3 A General Use NO 2 Analo...

Page 41: ...following protocols Optomux ASCII 2 I2 C ports for memory expansion LCD display and OpenBAS HV RF433R 1 SPI port 1 port for OpenBAS HV CORE2 display Physical Characteristics Weight 360 g 12 8 oz Encl...

Page 42: ...r is the system a substitute for property owners renters or other occupants to act prudently to prevent or minimize the harmful effects of an emergency situation Building automation systems produced b...

Page 43: ...rs may not provide timely warning of fires caused by carelessness or safety hazards such as smoking in bed violent explosions escaping gas improper storage of flammable materials overloaded electrical...

Page 44: ...s Alarm notification appliances such as sirens bells horns or strobes may not warn or waken a sleeping occupant if there is an intervening wall or door It is less likely that the occupants will be ale...

Page 45: ...hout prior notice www mircomgroup com U S A 4575 Witmer Industrial Estates Niagara Falls NY 14305 Tel 905 660 4655 888 660 4655 Fax 905 660 4113 CANADA Main Office 25 Interchange Way Vaughan ON L4K 5W...

Reviews: