background image

Dap4 LonWorks Interface Instructions 

Document number 600-000-966 Ver. 3                                                                                                                                                             

10

Description 

Read/

Write

Variable Name 

Data 

Type

LONworks 

SNVT

Custom alarm #4 -Optional 
alarm. External alarm input 
required. Factory programmed 
custom message required 

Cust_msg_Sw4 

Alarm_2 . Bit15 

83 

Humidifier stopped due to 
custom alarm switch 

HumSw_Inhibit 

Alarm_3 . Bit0 

83 

Heat inhibited due to custom 
switch alarm condition 

Heat_inhibit 

Alarm_3 . Bit1 

83 

Reheat and humidification 
inhibited from operation 

Rht_Hum_inhibit 

Alarm_3 . Bit2 

83 

Temperature of discharge air 
below alarm set point 

Disch_Tmp_lo_alm 

Alarm_3 . Bit3 

83 

Manual override: Check bypass 
switches - Standard alarm. 
Manual override switch is on 

Override_Alm 

Alarm_3 . Bit4 

83 

High condensation from digital 
input 

Condensation_alm 

Alarm_3 . Bit5 

83 

Unit in standby, all functions 
held off - Optional alarm. 
Control input signal required 
Factory setting required 

Unit_In_Standby 

Alarm_3 . Bit6 

83 

Cooling operation inhibited by 
BMS 

R/W BMS_Cooling_inhibit D  nvoBMSCool_In 

nviBMSCool_In 

95 

Heat inhibited due to bms 

R/W 

BMS_Heat_inhibit 

nvoBMSHeat_In / 
nviBMSHeat_In 

95 

Humidifier operation inhibited by 
BMS 

R/W BMS_Humidifier_inhibit D  nvoBMSHum_In 

nviBMSHum_In 

95 

Inhibit fan by bms 

R/W 

Fan_Inhibit_bms 

nvoBMSFan_In / 
nviBMSFan_In 

95 

Supervisor (BMS) On-Off. Show 
the state OFFbyBMS in main 
mask (1: Off; 0: On) 

R/W Superv_Off 

D  nvoSuperv_Off 

nviSuperv_Off 

95 

BMS-heartbeat is to confirm the 
communication with BMS. 
This variable must change at 
least once every 5 minutes or 
unit will revert on mode if it is 
command to off 

Write 
only 

BMS_Heartbeat D 

nviBMS_Heartbeat 

95 

 

Содержание LonWorks dap4

Страница 1: ...Data Aire dap4 LonWorks Interface Instructions Data Aire Inc 230 West BlueRidge Ave Orange CA 92865 Document number 600 000 966 April 2014 Revision 3 0 ...

Страница 2: ...number 600 000 966 Ver 3 2 Table of Contents 1 Introduction 3 2 Physical channels 3 3 Layout of the boards 3 4 Meanings of the LEDs 3 5 Installation 4 6 Connection to the LonWorks network 5 7 XIF and NXE file for dap4 6 8 dap4 LonWorks Point list 6 ...

Страница 3: ...hout any restrictions in the topology that is star ring on one bus only or with any combination of these Communication speed 78 125 kbps Maximum distance Belden 85102 cable 500m for connections between the nodes with free topology 3 Layout of the boards Fig 1 LonWorks card 1 Connector to the dap4 controller BMS card 2 Terminal block for LonWorks network GND A B 3 Service pin 4 Green service LED 5 ...

Страница 4: ...their original package as long as possible If necessary take the controller from its package and place it into antistatic packaging without touching the back of the board Absolutely avoid non antistatic plastic bags polystyrene or sponges Do not pass the electronic components or boards directly to other operators to prevent electrostatic induction and discharges Connect Lonworks card to the dap4 o...

Страница 5: ...rroneous data Service pin To activate the service pin simply momentarily short circuit the two pins on the board see Fig 1 and no 3 with the tip of a screwdriver or a similar tool The service pin must only be activated during the installation of the node When the pin is activated the node sends a broadcast message over the LonWorks network containing the information required for identification The...

Страница 6: ...Maximum A nvoHiTempHistory 105 Minimum Return air temp in last 24hrs R Minimum A nvoLoTempHistory 105 Temperature setpoint R W Temp_Setpoint A nvoTempSetpoint nviTempSetpoint 105 Temperature of chilled water R CW_Tmp A nvoWaterTemp 105 Temperature of discharge air R Disch_Air_Tmp A nvoDischTemp 105 Value of the analog input 1 R Opt1_Analog A nvoOpt1_Analog 8 Value of the analog input 2 R Opt2_Anal...

Страница 7: ... Compressor 2 Runtime This point applies to DX unit with dual compressor high R C2_Hours_H I nvoC2_Hours_H 8 Compressor 2 Runtime This point applies to DX unit with dual compressor low R C2_Hours_L I nvoC2_Hours_L 8 Heater 1 Runtime high R Ht1_Hours_H I nvoHt1_Hours_H 8 Heater 1 Runtime low R Ht1_Hours_L I nvoHt1_Hours_L 8 Humidity upper limit alarm Write only Hum_Hi_SP I nviHiHumLimit 8 Upper lim...

Страница 8: ... 83 No air flow alarm R Air_Flow_alm D Alarm_1 Bit1 83 Dirty filter from digital input R Filter_alm D Alarm_1 Bit2 83 Alarm from humidifier digital input R Humidifier_alm D Alarm_1 Bit3 83 Temperature of return air above firestat alarm set point R Firestat_alm D Alarm_1 Bit4 83 One or more comps has short cycled R Shortcycle_alm D Alarm_1 Bit5 83 Loss of power requires manual reset of alarm R PwrU...

Страница 9: ... door Optional alarm External alarm input required R SeeTag_cust_alm3 D Alarm_2 Bit8 83 Local alarm 4 See tag inside door Optional alarm External alarm input required R SeeTag_cust_alm4 D Alarm_2 Bit9 83 Standby pump on Check primary pump Optional alarm Pump failure input signal required R Stdby_Pump_On D Alarm_2 Bit10 83 Alarm UPS power on Check main power Optional alarm External alarm input requ...

Страница 10: ...Alm D Alarm_3 Bit4 83 High condensation from digital input R Condensation_alm D Alarm_3 Bit5 83 Unit in standby all functions held off Optional alarm Control input signal required Factory setting required R Unit_In_Standby D Alarm_3 Bit6 83 Cooling operation inhibited by BMS R W BMS_Cooling_inhibit D nvoBMSCool_In nviBMSCool_In 95 Heat inhibited due to bms R W BMS_Heat_inhibit D nvoBMSHeat_In nviB...

Отзывы: