KMC Controls BAC-7302, Installation And Operation Manual

Page 1: ...nputs 9 Connecting outputs 10 Connecting to a NetSensor 11 Connecting to an MS TP network 11 Connecting power 13 Programming 14 Section 3 Operating the controller Operation 15 Controls and Indicators 15 Restoring factory settings 18 Installation and Operation Guide BAC 7302 and BAC 7302C Advanced Applications Controller 905 019 53E Revision E ...

Page 2: ... translated into any language in any form by any means without the written permission of KMC Controls Inc Printed in U S A Disclaimer The material in this manual is for information purposes only The contents and the product it describes are subject to change without notice KMC Controls Inc makes no representations or warranties with respect to this manual In no event shall KMC Controls Inc be liab...

Page 3: ...oof top units Easy to install simple to configure and intuitive to program Controls room temperature humidity fans monitors refrigeration lighting and other building automation functions Specifications Inputs Universal inputs 4 Key features Software selectable as analog binary or accumulator objects Accumulators limited to three in one controller Standard units of measure NetSensor compatible Over...

Page 4: ...tion Automatically assigns MAC addresses and device instance numbers Removable screw terminal block Wire size 14 22 AWG NetSensor Compatible with models KMD 1161 and KMD 1181 Connects through RJ 12 connector Programmable features Control Basic 10 program areas PID loop objects 4 loop objects Value objects 40 analog and 40 binary Time keeping Real time clock with power backup for 72 hours BAC 7302 ...

Page 5: ... 15 Subpart B BACnet Testing Laboratory listed CE compliant SASO PCP Registration KSA R 103263 Environmental limits Operating 32 to 120 F 0 to 49 C Shipping 40 to 140 F 40 to 60 C Humidity 0 95 relative humidity non condensing Installation Supply voltage 24 volts AC 15 20 50 60 Hz 25 VA Class 2 only non supervised all circuits including supply voltage are power limited circuits Weight 8 2 ounces 1...

Page 6: ...ories Power transformer XEE 6111 40 Single hub 120 volt transformer XEE 6112 40 Dual hub 120 volt transformer Table 1 1 BAC 7302 Dimensions A B C D E 4 36 in 6 79 in 1 42 in 4 00 in 6 00 in 111 mm 172 mm 36 mm 102 mm 152 mm OUT4 GND T3B RTN3 T3A T2B RTN2 T2A RTN1 T1 A E B C D ...

Page 7: ...omote safety we use hazard alert labeling in this manual Follow the associated guidelines to avoid hazards Danger Danger represents the most severe hazard alert Bodily harm or death will occur if danger guidelines are not followed Warning Warning represents hazards that could result in severe injury or death Caution Caution indicates potential personal injury or equipment or property damage if ins...

Page 8: ...KMC Controls Revision E About the BAC 7302 Safety considerations 8 ...

Page 9: ... or enclose all cables in conduit Connecting inputs The BAC 7302 controller has four universal inputs Each input can be configured to receive either analog or digital signals By using the optional pull up resistors either passive or active devices may be connected to the inputs Note KMC supplied Control Basic programs assign input 1 I1 to the space temperature sensor input If the KMC programs are ...

Page 10: ...e voltage up to a maximum of 5 volts DC then place the input pull up jumper in the Off position Connecting outputs The BAC 7302 includes one single stage triac two three stage triacs and one universal output All triacs are rated for 24 volt 1 ampere loads switch on zero crossing and are optically isolated Caution When connecting loads to triacs use only the terminal marked RTN associated with each...

Page 11: ...ecting a controller to an MS TP network Connect no more than 128 addressable BACnet devices to one MS TP network The devices can be any mix of controllers or routers To prevent network traffic bottlenecks limit the MS TP network size to 60 controllers Use 18 gauge twisted pair shielded cable with capacitance of no more than 50 picofarads per foot for all network wiring Belden cable model 82760 mee...

Page 12: ...ed to the ground of the controller When connecting to controllers from other manufacturers verify the shield connection is not connected to ground End of line termination switches The controllers on the physical ends of the EIA 485 wiring segment must have end of line termination installed for proper network operation Set the end of line termination to On using the EOL switches Illustration 2 4 MS...

Page 13: ...not exceed its rating and phasing is correct If several controllers are mounted in the same cabinet you can share a transformer between them provided the transformer does not exceed 100 VA or other regulatory requirements Do not run 24 volt AC power from within an enclosure to external controllers Connect the 24 volt AC power supply to the power terminal block on the lower right side of the contro...

Page 14: ...n the KMC Controls web site BACstage User s Guide to Installation and Getting Started 902 019 62 BAC 5000 Reference Guide 902019 63 TotalControl Reference Guide Application Note AN0404A Planning BACnet Networks MS TP Automatic MAC Addressing Installation Instructions Supplied applications programming Refer to the KMC Digital Applications Manual for information on using the applications programs in...

Page 15: ...ibed in the guide MS TP Automatic MAC Addressing Installation Instructions that is available from the KMC Controls web site Network disconnect switch The network disconnect switch is located on the left side of the controller Use this switch to enable or disable the MS TP network connection When the switch is ON the controller can communicate on the network when it is OFF the controller is isolate...

Page 16: ...estart operation is complete Restart button operations are listed in the following table Communications Com LED The yellow Communications LED indicates how the controller is communicating with other controllers on the network Sole master Repeating pattern of a long flash and a short pause that repeats once a second It indicates that the controller has either generated the token or is a sole MS TP ...

Page 17: ...voltage or current on the network exceeds safe levels the bulbs operate as fuses and may protect the controller from damage Isolation bulbs The two network isolation bulbs KMC P N HPO 0054 located next to the network switch serve three functions Removing the bulbs opens the EIA 485 circuit and isolates the controller from the network If one or both bulbs are lit it indicates the network is imprope...

Page 18: ...red will have no effect on the controller Performing a warm start A warm start changes the controller as follows Restarts the controller s Control Basic programs Leaves object values configuration and programming intact Caution In the unlikely event that the checksum test in RAM fails during the warm start the controller will automatically perform a cold start During a cold start controller output...

Page 19: ...old start with BACstage or from TotalControl Design Studio Restoring to factory settings Restoring a controller to factory settings changes the controller as follows Removes all programming Removes all configuration settings Restores the controller to factory default settings Caution Resetting the controller erases all configuration and programming After resetting to factory settings you must conf...

Page 20: ...KMC Controls Revision E Operating the controller Restoring factory settings 20 ...