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ST-90 Quad Channel Controller User Manual

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1. Bar Graph Screen Ch Trend Screen EngraUnits Chx 56 1 eem CO i FAULT LEL CH4 Press Next Press Next returns Press Next CI to scroll Ch to EUnit Screen 280 9 a _ Trend Screens reni pem EEE a Press Edit Channel x SETUP Press Edit FAULT Setur Fault gt Alarm 1 BR Fault Level Alarm 2 Delay 85 Alarm 3 OFF Delay m We Configure CAL Setur Select press Edit System Menus Alarm 1 2 3 menus E a a are identical i SYSTEM SETUP Press Edit RELAY SETUP Alarm x Setur Relay Setur gt Standard Ort Relay 1 1 R2 Ack Horn SetuP WeFault Votes 8 Point 28 Clockz Delass Alarm 1 Votes 1 ON Delay as i Alarm 2 Votes Ed OFF Delay Communications Low Trir NO 1 Alarm 3 Votes 8 Latchi Input Output Setur Failsafe atching Track Negative _ Quer Ride L R2 SETUP m CHANNEL x CONFIG i m SYSTEM SECURITY WeFault OFF BR Hane 16 digits Alarm 1 PULSE EUNIT 16 digits 1 WeContact Name Alarm 2 STEADY Zero Pass Code Alarm 3 OFF pran ye 198 Ly ecimal Points 1 Relan ae Channel Active YES Unlocked Denies Net s CLOCK DELRYS th x CAL SETUP 1 Calibrate 116167 02 30 19 Ch2A10 Gee 0 150 1 Warm U
2. r SYSTEM SETUP EDIT SERIAL PORT SETUP EDIT RADIO SETUP Relay Setur p Modbus Master Hor Channel HckzHorn Setur Poll Rate 25 5 System ID Heal ClockzDelass Timeout Mode CLIEHT Re eel te i Configure Radio RF Handshaking OFF Tneut Outeu etur Track Negative Server In Range Diagnostics lt _ lt Figure 2 11 2 3 5 ANALOG SETUP MENU The system ANALOG SETUP menus in Figure 2 12 allow setting the 11 bit A D analog to digital counts and the 10 bit D A digital to analog counts for each of the four channels Use the Set Channel entry to scroll to the desired channel using the EDIT key The live A D counts value for the channel selected is also shown on the bottom of this screen 16 RC SYSTEMS Document UM 1006 The default setting for A D counts is 400 for Min and 2000 for Max This is based upon ST 90 QUAD Controller User s Manual a 0 20mA input providing 0 2000 counts or 100 counts per mA input Min Counts Max Counts entries in the INPUT SETUP menus define the input A D counts range for Zero and Span readings as described in section 2 2 4b The default settings for each analog channel are 400 to 2000 counts Standard inputs yield 400 counts at 4mA and 2000 counts at 20mA but for example if a special application requires the Zero reading at 6mA input and the Span reading at 18mA input the correct A D Min
3. Y Gy ry t ide Vi Sid iew Nose 1 Material Part 1000 2377 316 Stainless Steel Part 1000 2378 Painted Carbon Steel 9 9 1 2 in NPTConduit Fittings 6 20 Typical 4 places 2 70 o t 0 0 240 412 584 7 56 Bottom View Figure 4 1 34 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B 4 2 ST 90SS NEMA 4X STAINLESS STEEL WALL MOUNT EXTENDED The ST 90SS QUAD shown in Figure 4 2 is a 316 Stainless Steel NEMA 4X wall mount enclosure designed for corrosive installations 9 84 Instrument Viewing Window Ul e 1 4 Turn Lascia O 181 1890 136 Singl Front View orp es Side View Notesi 1 Material Part 1000 2377 316 Stainless Steel Part 1000 2378 Painted Carbon Steel 9 9 1 in NPTConduit Fittings 2 70 ti 0 0 2 40 418 5 84 756 Bottom View Figure 4 2 35 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B 4 3 ST 90XP NEMA 7 EXPLOSION PROOF WALL MOUNT EXTENDED The ST 90XP QUAD shown in Figure 4 3 is an aluminum NEMA 7 wall mount enclosure designed for mounting into potentially hazardous areas
4. digits SP an Decimal Pts Channel Active YES Figure 2 4 2 2 4 NAME EUNITS ASCII DATA FIELDS The first two items in this menu are for entering the 10 character channel Name and engineering unit ASCII fields Name should describe the channel s data in user terminology such as tag or other description Eunits should define the units of measure for what this channel is to display Section 2 2 describes how to modify these fields using the keypad 2 2 46 INPUT MEASUREMENT RANGE The Zero Span menu entries allow configuration of the measurement range displayed by this channel Measurement Range defines the range of the input signal s engineering units For example if a channel s input is 4 20mA from a transmitter monitoring 0 to 10ppm chlorine then the Zero value should equal 0 000 and the Span value equal 10 00 Four digits must be entered so trailing 0 s may appear here that are not displayed on other data screens These menus work hand in hand with Min Max Raw Counts menus described in section 2 3 4 2 2 44 DECIMAL POINT RESOLUTION Resolution of the displayed channel value is configured in this menu by setting the number digits trailing the decimal point Displayed readings are limited to a maximum of four digits with a polarity sign Auto ranging displays the highest resolution allowed by this menu s decimal point entry For example a range of 0 to 100ppm and two decimal point
5. 13 00 6 25 4 ZE N PN 14 25 8 00 LA B JH V NG 2 RR Pans Jc Q e O 3 4 NPT Qty 4 o 0 Mounting Feet 9 87 e Figure 4 3 36 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B SECTION 5 5 0 ADDING THE WIRELESS RADIO KIT OPTION ST 90 serial port may be connected to a FHSS Frequency Hopping Spread Spectrum wireless radio modem shown in Figure 5 1 There are two different frequency options offered 900 MHz 10 0328 and 2 4 GHz 10 0355 The radio kit options allow wireless modbus master slave see section 5 3 and Wireless Receiver see section 5 2 modes of operation Wireless Modbus interfaces allows ST 90 s to either send slave or retrieve master from other modbus capable devices Each transceiver on a wireless network must have their RADIO SETUP menus configured to share the same hopping channel 0 32 and System ID 0 255 to communicate R C Systems wireless transceivers utilize a Server Client network where Clients synchronize their hopping to the Server The Server transmits a beacon at the beginning of every hop 50 times per second Client transceivers listen for this beacon and upon hearing it will indicate InRange with the LED on the radio modem board and synchronize their hopping with the Server Each network should consist of
6. enne eee so sese tense etes es seen sese tna 10 224 INPUT MEASUREMENT RANGE 224 DECIMAL POINT RESOLUTION 2 2 4d TURNING OFF UNUSED CHANNELS ccsccccssssscssssscccesssccscssseccsssscessssseccsessscessessseeceses 10 2 2 5 CAL SETUP MENU E MH 11 CALIBRATE INPUT MENU U 11 2 3 SYSTEM CONFIGURATION MENU cccsssscssssssscsssssccessscccesssscscssssccecssccecessacesesssscseesssceseses 12 2 3 1 STANDARD OPTIONAL RELAY SETUP MENUG csssscscsssscssssscccssssccssssscccessscssesssees 13 2 3 2 RELAY 2 ACK Acknowledge HORN SETUP MENU e eeeeee eres eese tons tn ns tnattn 14 2 3 3 CLOCK DELAYS MENU ccsccsiecosscsessocscessecedsesbedessscsesseoncctsecnssssescescoses csseenosesesdecsossesossssenssses 15 2 3 4 MODBUS COMMUNICATIONS MENU ccssscssssssssscssscsscsscssscssssssssscsssassssscsssessssscssnssssssees 16 2 3 5 ANALOG SETUP MENU ooo ee eo so rone et apo eaa Pao do rho Yee de Ee oe eode oen vbt 16 2 4 SYSTEM SECURITY MENU 4 5 aene eo eo cu do eo roce eren o Coah epos ea Voraus e io Poss 18 SECON 19 3 0 MOTHERBOARD INTERFACE 10 0215 0 cccssssscssssscccssssccecsseccssssccsessseccscsssceceees 19 3 1 INPUT OUTPUT OPTIONAL PCB S scsscssccssccossscsssosesssscossssnscodesessssssseescesesseesonscoossoses
7. Figure1 0 Common Alarm Assy 10 0214 e Programming Header Level LED s ALARM 1 5B 1 LED Indicators 9 15 ALARM 2 CAL IN PROGRESS ALARM 3 FAULT ALARM Quad Screen Shown NEXT key to LCD Contrast display Bar Graph or Trend screens adjustment SW1 SW5 are the magnetic keypad allowing operator interface w o opening the enclosure Touch key access requires opening the enclosure UP DOWN NEXT EDIT RESET CAL Figurel 1 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B 1 1 DATA DISPLAY SCREENS The ST 90 Controller offers three modes for displaying monitored data Each are shown below in Figure 1 2 Engrg Unit Screen Bar Graph Screen Ch Trend Screen 38 1 Engraunits Chx 38 1 rem 3B 25 EngrguUnits LEL CH4 FAULT LEL CH4 Press Next Press Next returns m FL Press Next L 4 to scroll Ch to EUnit Screen 28 9 Oxygen Trend Screens Oxegen rem CO Poel CO n2 At A 7 Engrg Unit Screen has flashing alarm Bar Graph Screen has lines across Trend Screen shows most recent 30 icons for Als Hz FL fail bars to graphically indicate monitored minutes trend one channel per screen Menu Item in the SYSTEM group values relative to their alarm set points Press NEXT key to advance to next controls if these reading display or channel Alar
8. WIRELESS RADIO KIT OPTION cccccccssssscrsrcccscssssssscrcscessssssssssoes 37 5 1 RADIO SETUP MEN essssssiscistcceccisccssvessossessccsssdonccessesdesecsstessuusoscscesdseoscoasessscnseosescddsesesssessvedeeesess 37 5 2 WIRELESS RECEIVER 38 5 2 1 RADIO STATUS ALARMS WIRELESS RECEIVER 39 5 3 WIRELESS MODBUS MASTER SLAVE MODES 4 eere ee ee 40 5 3 1 WIRELESS MODBUS SLAVE MODE eese eee ee eese en eset tn sese 40 5 3 2 WIRELESS MODBUS MASTER eere ee eene sete tn sesto 40 5 4 ANTENNA SELECTION 40 5 4 1 DIPOLE AND COLLINEAR ANTENNAS u ssccccsssscssssscccssssccscsseccesssccecesseccsesscceceessseeceses 40 5 4 2 5 41 5 4 3 MOUNTING NEAR OTHER ANTENNAS 2 sccccssssscssssscccssssccccssseccesssccecesseccsessccessssssesceses 41 5 4 4 COAX CABLES 41 5 5 SURGE PROTECTION amp GROUNDING sseseesseoesesessssceessecessseceeseecsscoecssoceesseceseseesssoeesseseesseese 42 5 5 1
9. 1 Prior to connecting remote sensors apply power to the system Measure the voltage between each channel s A and R terminals and set the Voltage Adjust potentiometers for the correct sensor excitation voltage remove ST 90 terminal cover This may range from 1 5 volts to 7 5 volts depending upon sensor specifications Sensors may be damaged by accidental over voltage conditions It is recommended the Voltage Adjust potentiometer screws be covered by a dollop of RTV or similar material after completion of this procedure 2 Remove system power and connect sensor wires to the A C R terminals Reapply system power and confirm correct voltage across each sensor s A amp R terminals Note if sensor wires are long it will be necessary to measure the excitation voltage at the sensor end to compensate for I R voltage losses in the wiring 3 With zero cal stimulus on that sensor adjust its Balance potentiometer for a ZERO reading on the LCD 4 Apply 50 span stimulus to the sensor and allow the reading to stabilize Place the 3 position Coarse Gain jumper into the position which reads between approximately 45 and 65 with 50 on the sensor Gain settings for each jumper position are as follows no jumpers 1 LO 7 MED 12 HI 24 Multiple jumpers have an additive affect upon gain so for example the LO and MED jumpers together provide a gain of 19 Initial setup is now complete and normally only requires repeating if a sensor is repl
10. Max Raw counts would be 600 to 1800 00 Min Counts Max Counts entries in the OUTPUT SETUP menus define the output D A counts range for Zero and Span readings as described in section 2 2 4b OUTPUT SETUP menus are only used when the ST 90 QUAD is equipped with the 10 0308 4 20mA output option Section 3 1 5 Ideally 200 to 1000 yields a 4 20mA output but very slight modifications may be needed to provide precise 4mA and 20mA values for each channel SwSTEM SETUP gt Relay Setur R2 Ack Horn Setur ClockzDelass Communications We InrutzOutrut Setur Track Negative ANALOG SETUP Set Channel 1 4 Set Inrut Set Outeut Ineut Tyre Analog Counts 441 Figure 2 12 17 INPUT SETUP Bw Min Counts 408 Max Counts 2008 OUTPUT SETUP Bw Min Counts 288 Max Counts 1006 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B 2 4 SYSTEM SECURITY MENU A 4 digit Pass Code entered and confirmed in this menu item locks all menus Viewing menus is not denied but attempts to edit variables flashes the Locked message on the LCD Authorized individuals locking the system should first enter a name phone or other contact information into the 12 character field on the top line of the Security screen To lock or unlock the system the correct 4 digit authorization number must be entered into the Pass Code field It is very importa
11. Set UNITY Gain CAL Offset CAL Gain 1 668 Figure 2 5 CALIBRATE INPUT MENU The CAL MODE flow chart shown in Figure 2 6 is designed to make calibration quick easy and error free A successful ZERO and SPAN calibration requires only a few keystrokes Optional 4 20mA outputs if equipped transmit 1 5mA during CAL MODE and 4mA during the subsequent CAL DELAY to prevent external alarms during calibration Local ST 90 alarm relays are inhibited during CAL MODE Unintentional calibrations may be reset by the Set UNITY menu item Set UNITY resets Cal OFFSET to 0 amp Cal GAIN to 1 which is useful for returning the calibration to a known starting place Sensor aging may be monitored by recording zero and span readings at Unity Gain when the sensor is new and again later when degradation may have occurred CAL MODE automatically exits if no keystroke is detected after 5 minutes Use the following step by step procedure to perform ZERO and SPAN calibrations 1 To enter the CAL MODE from any data display press the dual purpose DOWN CAL key then use the UP DOWN keys to select the channel to calibrate 2 Stimulate the monitor to be calibrated with an appropriate ZERO calibration standard Observe the screen s live reading and when it is stable press the EDIT key to perform the ZERO calibration 3 If the ZERO calibration is successful CAL MODE automatically proceeds to the SPAN check 4 Apply the correct SPAN cali
12. ALARM2 BELOW BIT2 ALARM3 BELOW BIT3 ALARMI LATCH BIT BITS ALARM2_LATCH_BIT BIT6 ALARM3_LATCH_BIT BIT7 WIRELESS INPUT BIT4 CHANNEL DISABLED BIT BIT9 CHANNEL CAL BIT10 System Status Word 31009 4 NA 16 bit status word bit assignment for system status TRACK NEGATIVE BITO WIRELESS RECEIVER SECURITY LOCK BIT15 Alarm Status Word 31010 4 NA 16 bit status word bit assignment for system status CHAN FAULT BITO CHAN ALARMI BIT1 ALARM2 BIT2 CHANI ALARM3 BIT3 CHAN2 FAULT BIT4 CHAN2 ALARMI BITS CHAN2 ALARM2 BIT6 CHAN2 ALARM3 BIT7 CHAN3 FAULT BIT8 CHAN3 ALARMI BIT9 CHAN3 ALARM2 BIT10 CHAN3 ALARM3 CHAN4 FAULT BIT12 CHAN4 ALARMI BIT13 CHAN4 ALARM2 BIT14 CHAN4 ALARM3 15 LED Blink Status 31011 4 NA Bit set to 1 LED Blinking bit set to 0 LED is steady ON CHAN FAULT BITO CHAN ALARMI BIT1 ALARM2 BIT2 CHANI ALARM3 BIT3 CHAN2 FAULT BIT4 CHAN2 ALARMI BITS CHAN2 ALARM2 BIT6 CHAN2 ALARM3 BIT7 29 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B CHAN3 FAULT BIT8 CHAN3 ALARMI BIT9 CHAN3 ALARM2 BIT10 CHAN3 ALARM3 CHAN4 FAULT BIT12 CHAN4 ALARMI BIT13 CHAN4 ALARM2 BIT14 CHAN4 BIT15 Relay Status 31012 4 NA Note 1 energized 0 deenergized STANDARD RELAY 1 BITO STANDARD RELAY 2 BIT1 OPTION RELAY 1 BIT2 OPTION RELAY 2 BIT3 OPTION RELAY 3 BIT4 OPTION RELAY 4 BIT5 OPTION RELAY 5 BIT6 OPTION RELAY 6 BIT7 COMMON FAULT
13. Return to Cal SELECT CAL CHANNEL Channel 1 Hold UP key 5 sec to enter CAL MODE info screen Use to change SPAN GAS to view Offset Gain constants and observe live counts reading value Back to DATA DISPLAY LEL CH4 FL 734 EngrgUnits 28 9 Oxygen Channel 4 Hold UP key 5 sec Hold UP key 5 sec NEXT to Exit EDIT to Select Select ZVAL SUHL then press EDIT Eunits NEXT KEY Eunits NEXT live rea dingeunits gt Live readinsZeunits CAL GAS EDIT to Set ZERO EDIT to Set SPAN NEXT SPAN CAL Mode NEXT EXIT CAL Mode EDIT EDIT If ZERO Cal Fails If ZERO Cal OK If SPAN Cal Fails If SPAN Cal OK show for 5 seconds show for 5 seconds SPHH CAL Ll ZERO CAL Ez dani Successful Limit Exceeded Limit Exceeded Successful 2 3 Figure 2 6 SYSTEM CONFIGURATION MENUS 1 CAL Purge time period inhibits alarm relays Several items needing configuration are not specific to either channel but affect the entire ST 90 system These are located in the SYSTEM menus group shown in the dotted line box in Figure 2 0 System menus are accessed through the System SETUP menu shown in Figure 2 7 by pointing to the desired item and pressing EDIT 12 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B
14. no relay BIT8 Reserved BIT9 Reserved BIT10 Reserved Reserved BIT12 Reserved BIT13 Reserved BIT14 Reserved 5 VARIABLE ALIAS READ FUNCTION CODE WRITE FUNCTION CODE Memory Reals Notes 41001 41040 Real represents float value without the decimal point such that 123 4 is returned as 1234 Decimal devisor is returned as 1 10 100 or 1000 for decimal position of 1 2 3 or 4 where 123 4 would return the devisor value 10 Chan 1 Zero Real 41001 3 NA Chan 1 Zero Divisor 41002 3 NA Chan Span Real 41003 3 NA Chan 1 Span Divisor 41004 3 NA Chan 1 Fault Alarm Real 41005 3 NA Chan 1 Fault Alarm Divisor 41006 3 NA Chan 1 Alarm 1 Real 41007 3 NA Chan 1 Alarm 1 Divisor 41008 3 NA Chan 1 Alarm 2 Real 41009 3 NA Chan 1 Alarm 2 Divisor 41010 3 NA Chan 1 Alarm 3 Real 41011 3 NA Chan 1 Alarm 3 Divisor 41012 3 NA Chan 2 Zero Real 41013 3 NA Chan 2 Zero Divisor 41014 3 NA Chan 2 Span Real 41015 3 NA Chan 2 Span Divisor 41016 3 NA 30 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B Chan 2 Fault Alarm Real 41017 3 NA Chan 2 Fault Alarm Divisor 41018 3 NA Chan 2 Alarm 1 Real 41019 3 NA Chan 2 Alarm 1 Divisor 41020 3 NA Chan 2 Alarm 2 Real 41021 3 NA Chan 2 Alarm 2 Divisor 41022 3 NA Chan 2 Alarm 3 Real 41023 3 NA Chan 2 Alarm 3 Divisor 41024 3 NA Chan 3 Zero Real 410251 3 NA Chan 3 Zero Divisor 41026 3 NA Chan 3 Span Real 41027 3 NA Chan 3 Span Divisor 41028 3 NA Chan 3 Fault Alarm
15. AC In DC Out 2 Amp 250V 5x20mm fuse located under terminal cover WARNING For continued protection against fire replace only with same type and rating of fuse To Local Controller Circuits To optional 10 0221 Al 24VDC Terminals SHOCK HAZARD TEN DEN RISK OF ELECTRICAL SHOCK DISCONNECT OR 100 240 VAC SUPPLY POWER ABA SORO TURN OFF POWER _ OUTPUT AC POWER BEFORE SERVICING THE only with AC Primary Power EQUIPMENT Figure 3 0 TB2 offers field terminals for a remote alarm reset switch The motherboard also includes standard alarm relays 1 amp 2 K1 amp K2 and their indicating LED s TB4 provides field wiring terminals for these relays 5 is for connection to the 100 240 VAC power source J2 is a 2 pin connector for powering the optional part 1000 1892 audible annunciator 19 RC SYSTEMS Document UM 1006 ST 90 QUAD Controller User s Manual B 0010 1167 Rev C 4 Channel Controller MotherBoard Assy 10 0215 CR5 Universal Switching Power Supply PSI RS 485 WIRELESS OPTION Connections to J1 amp J3 are not covered by CSA Ribbon Cable to 10 0214 Display Asserrbly 2 SENSOR INPUT OPTION Quad 4 20mA 10 0221 4 Quad Bridge 10 0309 n DISCRETE RELAY OPTION See dwg 10 0222 Note If installed this option blocks access to the fuse and must be removed to replace fuse WARNING For con
16. ANTENNA GROUNDING Uvossessssssssisessssvsssonssesscessessesssscssscosecseccssensesessscsssessescoosebessesesseesesssioessess 42 5 5 2 CONNECTIONS TO OTHER 43 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B SECTION 1 IMPORTANT SAFETY ISSUES The following terms and symbols are used in this manual to alert the operator of important instrument operating issues PEE This symbol is intended to alert the user to the presence of important operating and maintenance servicing instructions This symbol is intended to alert the user to the presence of dangerous voltage within the instrument enclosure that may be sufficient magnitude to constitute a risk of electric shock This symbol signifies the system s ground terminal DC refers to direct current voltages VAC refers to alternating current voltages WARNINGS gt gt Shock Hazard Disconnect or turn off power before servicing this instrument NEMA 4X wall mount models should be fitted with a locking mechanism after installation to prevent access to high voltages by unauthorized personnel see Figure 4 0 Only the combustible monitor portions of this instrument have been assessed by CSA for 122 2 No 152 performance requirements This equipment is suitable for use in Class I Division 2 Groups A B C and D or non hazardous locations only WARNING EXPLOSION HAZARD SUBSTITUTION OF COMPONE
17. OFF kelas 2 ACK Local Piezo Figure 2 9 2 53 CLOCK DELAYS MENU These ST 90 timers accommodate inputs that may require varying times to stabilize after power is applied and after calibrations are complete Alarm Refresh menu allows reactivation of Acknowledged alarms after the time period expires This feature is used primarily to restart audible alarm devices after having been silenced by an acknowledge function via serial port or pressing the Alarm Reset button An entry of 0 seconds effectively disables the Alarm Refresh function Warm Up Delay menu allows setting how long alarm relays remain disabled after power is applied Cal Delay determines how long alarm relays are inhibited after completing a calibration Time and Date menu items are for setting the correct time and date The ST 90 is equipped with a 24 hour clock and calendar Time of day must be entered in 24 hour mode For example 6 00 00 PM z is indicated as18 00 00 CLOCK DELAYS B Alarm Refresh Hs Warm Up Delay BAS Cal Delay eis Time lr 34 22 Date asrlar Figure 2 10 15 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B 2 3 4 MODBUS COMMUNICATIONS MENU The COMM SETUP menu allows setting of the system s Modbus port It may function as a wired Modbus Master Slave requires 10 0253 serial option in Section 3 2 or wireless Modbus Master Slave requires 900MHZ 2 4GHZ radio kit option in s
18. Real 41029 3 NA Chan 3 Fault Alarm Divisor 41030 3 NA Chan 3 Alarm 1 Real 41031 3 NA Chan 3 Alarm 1 Divisor 41032 3 NA Chan 3 Alarm 2 Real 41033 3 NA Chan 3 Alarm 2 Divisor 41034 3 NA Chan 3 Alarm 3 Real 41035 3 NA Chan 3 Alarm 3 Divisor 41036 3 NA Chan 4 Zero Real 41037 3 NA Chan 4 Zero Divisor 41038 3 NA Chan 4 Span Real 41039 3 NA Chan 4 Span Divisor 41040 3 NA Chan 4 Fault Alarm Real 41041 3 NA Chan 4 Fault Alarm Divisor 41042 3 NA Chan 4 Alarm 1 Real 41043 3 NA Chan 4 Alarm 1 Divisor 41044 3 NA Chan 4 Alarm 2 Real 41045 3 NA Chan 4 Alarm 2 Divisor 41046 3 NA Chan 4 Alarm 3 Real 41047 3 NA Chan 4 Alarm 3 Divisor 41048 3 NA Memory ASCII Strings User Info Chan 1 40401 40405 3 NA User Info Chan 2 40406 40410 3 NA User Info Chan 3 40411 40415 3 NA User Info Chan 4 40416 40420 3 NA 10 ASCII characters 2 per register assigned to the unit identifier read as bytes EUNITS Chan 1 40421 40425 3 NA EUNITS Chan 2 40426 40430 3 NA EUNITS Chan 3 40431 40435 3 NA EUNITS Chan 4 40436 40440 3 NA 10 ASCII characters 2 per register assigned to the engineering units read as bytes Chan 1 ASCII Reading 40441 40443 3 NA Chan 2 ASCII Reading 40444 40446 3 NA Chan 3 ASCII Reading 40447 40449 3 NA Chan 4 ASCII Reading 40450 40452 3 NA 6 ASCII characters 2 per register reflecting the display readout 31 RCE SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B Firmware Version Version 40453 40455 3 NA 4 ASCII characters 2 p
19. SYSTEM SETUP kelas Setur RY Ack Horn Setur 5 Communications InFut utrut S5Setur Track Figure 2 7 2 3 1 STANDARD OPTIONAL RELAY SETUP MENUS The menu shown in Figure 2 8 allows configuring of both the standard Relay 1 amp Relay 2 motherboard relays and the six optional relays on the 10 0222 discrete relay option PCB Both standard and optional relays are programmed in this menu Select the relay to be configured by pointing the arrow at the top menu item and pressing EDIT The field will scroll through all eight possible relays 2 standard and 6 optional r RELH SETUP Standard Relay B Fault Votes Alarm 1 Wotes Alarm 2 lotes Alarm 3 Failsafe L Over Ride Figure 2 8 e Fault Alarm 1 Alarm 2 Alarm 3 menus in Figure 2 8 offers additional voting flexibility by controlling the channel alarm combinations that will trip the selected relay Each Votes entry requires this quantity of channels for of each type alarm be active before this relay activates As illustrated in Figure 2 8 above Standard Relay 1 activates when any 2 channels have Alarm 1 conditions PLUS any one channel has an Alarm 2 condition And since the Over Ride menu see description below contains the Ch1A2 entry Standard Relay 1 also activates if alarm 2 on channel 1 trips Fault Votes and Alarm 3 Votes values are th
20. and do not require optional discrete relays All mechanical dry contact relays are rated at 5 Amp for 28 VDC and 250 VAC RESISTIVE loads IMPORTANT Appropriate diode DC loads or MOV AC loads snubber devices must be installed with inductive loads to prevent RFI noise spikes AC or DC power supplies to relays on the 10 0222 Discrete Relay PCB option must be the same for each relay Example 24VDC should not be the power switched by one relay and 115VAC by others 24 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B When installed this option blocks access to the fuse and must be remove to replace a blown fuse WARNING For continued protection against fire replace only with same type and rating of fuse K1 K2 K4 amp K6 are programmable as described in Section 2 3 1 TB1 terminals 1 4 7 10 13 amp 16 are Normally Open Contacts for K1 K6 TB1 terminals 2 5 8 11 14 817 are Normally Closed Contacts for K1 K6 TB1 terminals 3 6 9 12 15 amp 18 are Common pole Contacts for K1 K6 5 8 2 gt 2 Contacts are rated for 5 amp resistive loads Arc suppressing snubber devices should be used for switching inductive loads Figure 3 5 25 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B 3 1 5 OPTIONAL 4 20mA ANALOG OUTPUT BOARD 10 0308 Important 10 0308 PCB s may only be installed into
21. motherboard position P2 An optional 10 bit 4 20mA analog output board shown in Figure 3 6 may be added Each channel s output will transmit 4mA for 0 readings and 20mA for 100 readings If the ST 90 primary power is 100 240 VAC or at least 24 VDC 4 20mA outputs are capable of driving 20mA through a 750 ohm load Outputs are self powered and DC power should not be provided by the receiving device Precision calibration of the 4 20mA output DAC digital to analog converter is accomplished via the Analog Setup menu as described in section 2 3 4 Assy 10 0308 Optional 4 20mA Output Notes 4 20mA Outputs are sourcing and 24 VDC power must not be supplied by the receiver device TBI TB2 1 2 3 4 1 2 3 4 Q Q Q QIIQ Q Q Q out 4 20mA OUTPUTS Loop drive capability is 750 ohms with nominal 85 240 VAC power or 24 VDC power as the Controller primary power supply Figure 3 6 3 2 MODBUS RS 232 RS 485 INTERFACE OPTION 10 0253 In compliance with CSA C22 2 No 152 certification the Wireless MODBUS interface to a LEL gas detector may only be used for data collection or record keeping with regard to combustible gas detection and not for performance verification The 10 0253 Modbus option PCB add both RS 232 and RS 485 Modbus RTU slave ports Figure 3 7 shows this optional PCB which mounts to connectors on the upper left corner of the ST 90 motherboard TB1 provides two pairs of T Rx t
22. only one Server There should never be two servers on the same RF Channel number in the same coverage area as the interference between the two servers will severely hinder RF communications The Server must be in a powered location as opposed to a battery powered ST 48 RF utilizing a sleep mode and Servers typically should be centrally located since all Clients must receive the beacon in order to communicate 55 ANTENNA GENS 8 P RADIO MODULE E 9 S 9 H TR 4 ANTENNA 2 4 GHz Radio Modem 900 MHz Radio Modem Figure 5 1 5 1 RADIO SETUP MENU Radio modules must be connected to the ST 90 s radio option board for RADIO SETUP Pressing the EDIT key with the arrow pointing to the Communications menu 37 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B brings the COMM SETUP menu to the screen With the arrow pointing at Configure Radio press enter again to enter the RADIO SETUP menu Figure 5 2 e Hop Channel may be set from 1 32 using the ST 90 keypad and assigns the pseudo random radio frequency hopping pattern A transceiver will not go InRange of or communicate with a transceiver operating on a different Hop Chann
23. set for steady Personnel then know which alarm level is present by hearing the pulsing or steady horn e Relay 2 Acknowledge set to ON allows Relay 2 to be deactivated during alarm conditions by an Alarm Reset This is useful if another audible device is being driven by the relay The acknowledge feature is not available for Relay 1 since it is often used for driving a warning light and Relay 2 for driving a horn It could be dangerous if an operator acknowledged the horn AND the light since no indication of the high alarm condition remains IMPORTANT If a Sympathy override is configured see section 2 3 1 for relay 2 the local alarm reset does not acknowledge the relay The relay may only be acknowledged from the network s ST 72 Modbus master controller Note For firmware revisions 3 02 and above if relay 2 is used as a discrete alarm condition such as all votes 0 and an override condition is set the acknowledge feature is disabled 14 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B If Standard Relay 2 is used in the Acknowledge mode AND with votes and an Override configured the override condition will dominate the Acknowledge In this mode Standard Relay 2 should not be used to drive an audible device e Local Piezo set to ON causes the tiny local piezo adjacent to the LCD to mimic the J2 horn output r Rz ACK HORH SETUP gt Fault OFF Alarm 1 PULSE Alarm 2 STEADY Alarm 3
24. 90 QUAD s AC power supply on the motherboard and thereby require another 50 watt AC DC supply NEC Class 2 FIFTY WATT external supplies are available for Division 1 part 10 0314 and Division 2 part 10 0315 potentially hazardous area installations and both also include a NEMA 4X weather rating See complete specifications at http www rcsystemsco com rc prod_view asp pid 25 EXTENDED series enclosures described in Section 4 of this manual may include the 1000 2259 DIN rail mounted 50 watt Power Supply module built into these larger enclosures 1 2 2 RELAYS Two mechanical dry contact Common Form C relays are standard and may be mapped to various alarm events as described in section 2 3 1 ST 90 s may also be equipped with optional solid state common Form A relays see order guide for details in applications requiring non arcing switching Solid state relays are recommended for switching of highly inductive loads A six mechanical dry contact Discrete Relay option board see section 3 1 6 provides dedicated Form C relays for ALARM 1 ALARM 2 and FAULT for both channels All mechanical dry contact relays are rated at 5 Amp for 28 VDC and 250 VAC N RESISTIVE loads IMPORTANT Appropriate diode DC loads or MOV AC loads snubber devices must be installed with inductive loads to prevent RFI noise spikes amp gt Optional solid state relays are rated at 2 Amp 12 280 600Vpk Relay wiring should be ke
25. ARN level A2 at a HIGH level and A3 at a higher SHUT DOWN level However it is important to understand there is no functional difference between RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B A2 and A3 and since their configuration menus are identical only one is shown in Figure 2 3 The Fault menus is identical to Al A2 A3 except Fault alarms are always low trips alarm activates as input goes below the set point and Fault alarms may not be set for latching operation Alarm 1 2 3 menus are identical FAULT Setur Alarm x Setuer B Fault Level B Set Point Delay Hs Delay OFF Delay Bn OFF Delay Low TrirF Latchina HL Figure 2 3 e Set Point is entered in engineering units and determines the value where the alarm trips For example if a channel monitors 0 50 ppmH2S and the desired alarm level is 10 ppm the correct entry is 10 00 A one percent dead band prevents alarm chatter This means after tripping an alarm the input must move at least 1 of full scale back through the setpoint for the alarm to auto reset The ON Delay OFF Delay entries allow ON and OFF time delays affecting how long the trip point must be surpassed before an alarm event transition occurs ON delays are limited to 10 seconds while OFF delays may be as long as 120 minutes Delays are useful in many applications to prevent nuisance alarms and unwanted cycling into and out
26. NTS MAY IMPAIR SUITABILITY FOR CLASS I DIVISION 2 WARNING EXPLOSION HAZARD DO NOT REPLACE FUSE UNLESS POWER HAS BEEN SWITCHED OFF OR THE AREA IS KNOWN TO BE NON HAZARDOUS WARNING EXPLOSION HAZARD DO NOT DISCONNECT EQUIPMENT UNLESS POWER HAS BEEN SWITCHED OFF OR THE AREA IS KNOWN TO BE NON HAZARDOUS Use a properly rated CERTIFIED AC power mains cable installed as per local or national codes For DC powered units DC power must be from a SELV rated source RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B Acertified AC power mains disconnect or circuit breaker should be mounted near the controller and installed following applicable local and national codes If a switch is used instead of a circuit breaker a properly rated CERTIFIED fuse or current limiter is required to be installed as per local or national codes Markings for positions of the switch or breaker should state T for on and for off e Clean using only a damp cloth with no solvents e Equipment not used as prescribed within this manual may impair overall safety 1 0 GENERAL DESCRIPTION The R C Systems Co Inc ST 90 Quad Four Channel Controller is designed to display and control alarm event switching for up to four inputs Inputs are typically voltage or 4 20mA current from transmitters monitors or other analog output devices The ST 90 is equipped with a Fault and three alarm levels per channel with features such as ON OFF dela
27. RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B SYSTEMS INSTRUCTION MANUAL SYSTEMS INC MODEL ST 90 QUAD FOUR CHANNEL CONTROLLER Revision 5 0 4 ST 90 QUAD PCS with 10 0284 strobe and wireless option shown Warning Read amp understand contents of this manual prior to operation Failure to do so could result in serious injury or death PH 409 986 9800 FAX 409 986 9880 8621 HWY 6 HITCHCOCK TX 77563 Website http www rcsystemsco com RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B SECTION ioei essa centeaedivedavedecndacoiwavdanneswageendeondseuswavaunadeweadensweulundsunwesnanewwabeaeasutes 1 IMPORTANT SAFETY ISSUES svsssiscccisssscssiscssscsscsonccesesccssesecsosassnscosescessssenssesesssboessbsscasssbessesssbonsessscenseesss 1 1 0 GENERAL DESCRIPTION wivssiscsssssissssscesssccscesssssssessccossssescssensesssbsccsesssssecessvssiesescessesseceseesstenssenss 2 1 1 DATA DISPLAY SCREENS 4 1 1 1 ENGINEERING UNIT SCREEN cccssssccsssscesssscccsssscccessccccsssscccessssccccssceccessscsccsssececessseess 4 BAR GRAPH SCREEN 4 1 1 3 TREND SCREEN cssissssssssviscscessssssassnesessssccsssessescessecssdesscevsdesesccsseeeesesssecsseetsssbieseescnsuscesoessssedsvaneses 4 1 2 SPECIFICATIONS csscscssssisscevssscassesessesscosiveasscvsvscnsoessessssoseesossseccosscasescessecsesvscioscevussdaseabesessst
28. aced Final calibration of this channel may now be performed using the ST 90 s electronic Cal Mode feature described in section 2 2 5 23 N N RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B Optional 4 20mA Input Notes for Ch s 3 amp 4 TR1 Ch3 100 ohm 4 20mA terminator TR2 Ch4 100 ohm 4 20mA terminator Install TR1 or TR2 only for 4 20mA Inputs Move JP5 or JP6 to 4 20 left side 5 6 8 9 10 11 12 Q Q Q Q QQQ R AJR AJR Ci AIR Chan 1 Chan 2 mA mA Ch3 mA Input TB1 8 TB1 9 Ch4 mA Input TB1 11 TB1 12 Shields may be tied to PCB mounting screw han 3 Chan 4 EXC1 EXC2 EXC3 EXC4 Set EXC Sensor Excitation pots R2 R12 R22 R32 for correct Sensor volts between amp A terminals for channels 1 2 3 amp 4 E m ES am Set BAL Sensor Balance pots R3 R13 R23 R33 for correct ZERO readings for channels 1 2 3 amp 4 Set Coarse Gain jumpers JP1 JP2 JP3 T JP4 for correct sensor millivolts for channels 5 8 1 2 3 amp 4 Assy 10 0309 Figure 3 4 3 1 4 OPTIONAL DISCRETE RELAY PCB s s 10 0222 Important 10 0222 PCB s may only be installed into motherboard position P3 The optional Discrete Relay PCB shown in Figure 3 5 adds six 5 amp form C relays Each relay is fully programmable as described in section 2 3 1 Many ST 90 applications utilize the standard equipped Relay 1 Relay 2 see section 2 3 1
29. bration standard After the reading is stable press the EDIT key to perform a SPAN calibration 11 RC SYSTEMS Document UM 1006 WARNING The SPAN calibration standard used must match the value ST 90 QUAD Controller User s Manual B specified since this is the reading the ST 90 will indicate after a successful SPAN calibration The SPAN calibration value may be edited if it becomes necessary to apply a different calibration standard to set SPAN see Span Calibration in section 2 2 5 5 Ifthe SPAN calibration is successful the display flashes REMOVE CAL GAS and starts the CAL DELAY 6 CAL MODE will be complete after the end of the CAL DELAY The flow chart in Figure 2 6 illustrates the above procedure UP CAL NEXT amp EDIT labels indicate keystrokes CAL DOWN is a dual purpose key The CAL MODE information screen top of the chart is available for advanced users to see Offset Gain calibration constants and live analog to digital converter A D counts Span set point calibration values may also be edited from this screen Holding the UP key for 5 seconds during CAL MODE displays this screen Unity Gain may be used at anytime to cancel incorrect calibrations and start again Unity means Offset 0 00 and Gain 1 00 ANY DATA DISPLAY EngraUnits AL 28 29 1 25 LEL CH4 FL Oxygen CO Press CAL key Channel 2 nnel 3 NEXT
30. ces a cursor under the item and UP DOWN scrolls through each allowed entry The NEXT key moves the cursor to the next position within a field When the field is complete EDIT clears the cursor and loads the field into non volatile memory where it is retained indefinitely Without a cursor present the NEXT key closes open menus in reverse order and returns the LCD to the data display 2 41 ST 90 SETUP CONFIGURATION MENUS The SETUP menu shown in the middle of Figure 2 0 and in Figure 2 1 below is reached by pressing EDIT with any data display present This is the entry level screen to ALL Channel System and Security menus It also shows the revision of firmware operating in the ST 90 Use the UP DOWN keys to move the pointer to the desired menu and press the EDIT key SETUP firmware reu Channel 1 Channel 2 Channel 3 Channel 4 System Security History Figure 2 1 2 22 CHANNEL SETUP ENTRY MENU The CHANNEL menu shown below in Figure 2 2 allows configuration of all variables for the selected channel These are Fault Alarm 1 Alarm 2 Alarm 3 Configure and CAL Setup Channel x SETUP Fault Hlarm 1 Alarm 2 Alarm 3 Configure CAL Setur Figure 2 2 2 23 FAULT ALARM 1 ALARM 2 ALARM 3 SET UP MENUs Alarms 1 2 and 3 have identical menus The only difference between each is Al front panel LED indicators are yellow while A2 and A3 are red Typical applications often have A1 set ata W
31. d the best protection is achieved by draining the surge energy to earth via an alternate path Wireless devices need to have a solid connection to earth via a ground stake or ground grid if the soil has poor conductivity Solid connection means a large capacity conductor not a small wire with no coils or sharp bends All other devices connected to the ST 90 need to be grounded to the same ground point There can be significant resistance between different ground points leading to very large voltage differences during lightning activity As many wireless units are damaged by earth potential surges due to incorrect grounding as direct surge voltage It is very difficult to protect against direct lightning strikes but the probability of a direct strike at any one location is very small Unfortunately power line surges and electromagnetic energy in the air can induce high voltage surges from lightning activity several miles away 5 5 1 ANTENNA GROUNDING Electromagnetic energy in the air will be drained to ground via any and every earth path An earth path exists between the antenna and the ST 90 and to protect against damage this earth path current must be kept as small as possible This is achieved by providing better alternate earth paths It is important to ground the antenna to the same ground point as the ST 90 Antennas are normally mounted to a metal bracket which should be grounded to the ST 90 earth connection Surge energy induced into
32. ection 5 A very common application is to connect two ST 90 QUAD controller s serial ports together with one set as master and one as slave This allows the master to mimic readings from the slave Wireless Receiver mode configures the port to receive serial data from our wireless ST 48 battery powered sensor transmitters requires 90OOMHZ or 2 4GHZ radio kit option in section 5 e Modbus Master mode allows the communication port to poll any Modbus slave device using the Modbus RTU protocol This setting is also utilized for Wireless Modbus Master e Modbus Slave mode allows the communication port to be polled by any Modbus master device using the Modbus RTU protocol This setting is also utilized for Wireless Modbus Slave This slave port may be used to transfer ST 90 data to a Modbus master device such as a PC PLC DCS or even other R C Systems Controllers such as the 16 Channel ST 71 The slave port is addressable allowing many ST 90 controllers to be connected to a single RS 485 cable A converter is available to make this port also compatible with Ethernet TCP IP networks Wireless Receiver mode is exclusively for wireless communication to our ST 48 RF wireless sensor transmitters see Section 5 please visit ST 48 RF The entire modbus database including registers and supported Function Codes is documented in section 3 2 1 See section 5 for COMM SETUP menu descriptions for WIRELESS ST 90 QUAD networks
33. el e System ID may be set from 1 255 using the ST 90 keypad and is similar to a password character or network number and makes network eavesdropping more difficult A transceiver will not go InRange of or communicate with a transceiver operating on a different System ID e Mode may be set for CLIENT or SERVER For a single ST 90 communicating to up to four battery powered ST 48 RF transceivers Mode must Server To prolong battery life ST 48 RFs sleep most of the time and therefore may not be Servers If an application calls for multiple ST 90 locations only one may be set for Server and all others must be Clients This single Server transmits a beacon which all of the network s Clients synchronize to ONLY ONE SERVER PER NETWORK r COMM SETUP RADIO SETUP Press B Configure Radia Edit Hor Channel B2 Wireless Receiver System ID B32 Wireless MOBBUS TH Power Slave ID Mode CLIEHT SERVER Radio configuration menu only displayed with RF module present on motherboard Figure 5 2 5 2 WIRELESS RECEIVER MODE Wireless Receiver mode is exclusively for wireless communication to our ST 48 RF wireless sensor transmitters please visit ST 48 RF In Receiver mode the radio connects to the ST 90 s Mother board and receives input data from up to four ST 48 RF sensor transmitters Wired and wireless inputs may be mixed between the ST 90 s four channels so it is possible
34. er register reflecting the firmware version Sympathy Notes 40004 registers are utilized by our ST 72 controller when a Modbus network is configured for sympathy see section 2 3 1 This feature must be configured in both the ST 72 Modbus master controller and the ST 90 Modbus slave controllers to function Sympathy Status 40004 NA 6 0 FALSE 1 TRUE FAULT BITO ALARM 1 BIT1 ALARM 2 BIT2 ALARM 3 BIT3 Acknowledge BIT15 3 3 OPTIONAL 24VDC 50 WATT POWER SUPPLIES Many applications require 24V DC power in excess of the 10 watts supplied by the PS1 power supply located on the motherboard see Figure 3 1 Extended enclosure models see Section 4 may be equipped with an integral 1000 2259 NEC Class 2 FIFTY WATT supply are available for Division 1 part 10 0314 and Division 2 part 10 0315 potentially hazardous area installations and both also include a NEMA 4X weather rating See complete specifications at 50 Watt Power Supply EXTENDED series enclosures described in Section 4 of this manual may include the 1000 2259 DIN rail mounted 50 watt Power Supply module built into these larger enclosures 32 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B SECTION 4 4 0 ST 90PY NEMA 4X POLYCARBONATE WALL MOUNT EXTENDED The ST 90PY QUAD wall mount NEMA 4X enclosure is shown in Figure 4 0 Non metallic enclosures are not grounded by metal conduit For internal ground points to be grounded to eart
35. erefore Fault and Alarm 3 conditions will not affect this relay Votes follow the logical AND function e Failsafe set for YES causes this relay to be energized when its voting requirements are false no alarm condition and de energized when the alarm vote requirements are true The primary benefit of Failsafe is loss of power places the relay contacts into the alarm condition e Over Ride menu allows entering one of the 16 different alarms that will trip this relay regardless of the Votes entries There are four alarms per channel and four channels Any one of these 16 alarms may be used as the Over Ride This feature is useful when one channel s alarm has more significance than the others perhaps a flame detector 13 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B e Sympathy alarms are also configured in the Over Ride menu When ST 90 QUAD controllers are sending their modbus data to an ST 72 controller it is possible to configure the ST 72 to return a trip command to the relay of all ST 90s configured with a sympathy alarm that are on the same modbus network This feature is especially useful when several ST 90 QAUD controllers are combined to monitor a perimeter It makes it possible for an alarm detected at one controller to trip an alarm at the others An example is instead of only a strobe light at the unit with the alarm flashing its strobe the Sympathy feature allows all units to flash their str
36. erminals and a floating terminal for shield continuation This makes it easy to multi drop ST 90 s onto an RS 485 cable without doubling wires into the same screw terminals RS 232 interface may be made by connecting to DB9 connector S1 Section 3 2 1 lists all modbus registers and their function codes 26 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B gt gt Follow correct IEEE RS 232 and RS 485 installation guidelines when using the 10 0253 option RS 232 Connector Schematic NC no connect 51 NC 1 gt TXD 2 RXD 3 gt GND4 NC 55 NC 65 RS 232 Shorted to 8 7 Shorted to7 8 NC 95 jeues uondo JP1 selects either RS 232 JP2 or RS 485 operation Term H Resistor S JP Select 1 v JP2 installs RS 485 terminating resistor end of cable only 5 SH RS 485 Terminal Ree Schematic NC no connect w AQ TBI RS 485 Transceiver RS 232 Transceiver ded 0010 1204 10 0253 BO TB1 RS 485 terminations 51 RS 232 terminations w e I gt 9 TIRX T RX Figure 3 7 27 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B 3 2 1 MODBUS REGISTER AND FUNCTION CODE SUMMARY The following table identifies the available modbus RTU register locations and function codes VARIABLE ALIAS READ FUNCTION CODE WRITE FUNCTION CODE Read Write Coils A
37. ess link would need to be mounted perfectly parallel for optimum performance This is very difficult to achieve over distance If the antenna is mounted vertically it is only necessary to mount the other antennas vertically for optimum coupling this is easy to achieve Dipole and collinear antennas provide best performance when installed with at least 1 to 2 wavelengths clearance of walls or steelwork The wavelength is based on the frequency Wavelength in meters 300 frequency in MHz Wavelength in feet 1000 frequency in MHz Therefore 900 MHZ antennas require at least 2 3 meter 2 feet and 2 4GHz 15 cm 6 inches Antennas may be mounted with less clearance but radiation will be reduced If 40 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B the radio path is short this won t matter It is important the antenna mounting bracket to well connected to earth or ground for good lightning surge protection 5 4 2 YAGI ANTENNAS Yagi antennas are directional along the central beam of the antenna The folded element is towards the back and the antenna should be pointed in the direction of the transmission Yagis should also be mounted with at least 1 to 2 wavelengths of clearance from other objects The polarity of the antenna is the same as the direction of the orthogonal elements For example if the elements are vertical the Yagi transmits with vertical polarity In networks
38. essseosssossese 21 3 1 1 OPTIONAL ANALOG INPUT 10 0221 4 21 3 1 2 OPTIONAL BRIDGE SENSOR INPUT BOARD 10 0309 22 3 1 3 BRIDGE SENSOR INITIAL SETUP 4 ee 23 3 1 4 OPTIONAL DISCRETE RELAY 5 10 0222 24 3 1 5 OPTIONAL 4 20mA ANALOG OUTPUT BOARD 7110 0308 ccce eere 26 3 2 MODBUS RS 232 RS 485 INTERFACE OPTION 10 0253 4 crees ee 26 3 2 1 MODBUS REGISTER AND FUNCTION CODE 50 ense ettno 28 3 3 OPTIONAL 24VDC 50 WATT POWER SUPPLIES 4 ee eeee ee eee eene eene eese enne 32 SECTION MEM e a a a 33 4 0 ST 90PY NEMA 4X POLYCARBONATE WALL MOUNT EXTENDED 33 4 1 ST 90PCS NEMA 4 PAINTED STEEL WALL MOUNT 34 4 2 ST 90SS NEMA 4X STAINLESS STEEL WALL MOUNT 35 4 3 ST 90XP NEMA 7 EXPLOSION PROOF WALL MOUNT 36 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B SECTION vi 37 5 0 ADDING THE
39. etter than mounting beside it Using different polarity to the other antenna if possible will also help to isolate the RF coupling 5 44 COAX CABLES If a coax cable connects to the antenna via connectors it is very important to weatherproof the connection using our 1000 2314 or equivalent sealing tape Moisture ingress into a coax cable connection is the most common cause of problems with antenna installations A three layer sealing process is recommended an initial layer of electrical PVC tape followed by a second layer of self vulcanizing weatherproofing tape 1000 2314 with a final layer of electrical PVC tape 41 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B Allowing a drip U loop of cable before the connection is also a good idea The loop allows water to drip off the bottom of the U instead of into the connection reduces installation strain and provides spare cable length in case later the original connectors need to be removed the cable cut back and new connectors fitted Avoid installing coax cables together in long parallel paths Leakage from one cable to another has a similar effect as mounting an antenna near another antenna 5 5 SURGE PROTECTION amp GROUNDING Voltage surges can enter the ST 90 via the antenna connection power supply connection connections to other equipment and even the earth or ground connection Surges are electrical energy following a path to earth an
40. fer unique positions for I O options described in this section A screen appears briefly after power up indicating what I O options are connected The P1 position accepts either the 10 0221 4 Analog Input option or the 10 0309 Bridge Sensor Input option Both have default Input Min Max menu see section 2 3 4 settings of 400 2000 counts P2 is reserved only for the 10 0308 4 20mA Output option and P3 is reserved only for the 10 0222 Discrete Relay option Connector locations relative to each option s mounting screws prevent incorrect installation 3 1 1 OPTIONAL ANALOG INPUT PCB 10 0221 4 gt gt In compliance with CSA C22 2 No 152 certification the 4 20 ma input does not include or imply approval of the LEL gas detection apparatus such as sensors transmitters or devices connected to the system In order to maintain CSA Certification of the system all 4 20 ma gas detection instruments connected to the input must also be CSA Certified Important 10 0221 4 PCB s may only be installed into motherboard position P1 Analog input PCB option 10 0221 4 shown in Figure 3 2 allows interfacing ST 90 s to field transmitters having 4 20mA or voltage outputs Remove socketed 100 ohm R1 R4 terminators for 0 4 VDC max voltage inputs The 10 0221 4 utilizes a 12 bit A D converter such that 4mA provides 400 counts and 20mA 2000 counts Min Max raw counts menus default to 400 2000 but may be adjusted between 0 4095 as described i
41. g data cable As the data device and the wireless unit cannot be connected to the same ground point different earth potentials can exist during surge conditions There is also the possibility of surge voltages being induced on long lengths of wire from nearby power cables Surge diverters can be fitted to the data cable to protect against surges entering the wireless unit The same principle applies to I O device is not close to the wireless unit the risk of surge increases Surge diverters for I O wiring are available to protect the wireless unit 43
42. h the TB5 GND terminal must have a proper earth ground connection see Figure 3 1 CAUTION NONMETALLIC ENCLOSURE DOES NOT PROVIDE GROUNDING BETWEEN CONDUIT CONNECTIONS USE GROUNDING TYPE BUSHINGS AND JUMPER WIRES ALL FIELD WIRING MUST HAVE INSULATION SUITABLE FOR AT LEAST 250V 8 55 2 65 7 25 L 1 CO e C gt gt Clamp Latch T 2 typical cc zT Instrument Viewing window 13 20 14 10 Front View h or T HI Notes A Material Polycarbonate Y C Side View 10 00 P 11 25 12 14 Bottom View Figure 4 0 33 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B 4 1 ST 90PCS NEMA 4 PAINTED STEEL WALL MOUNT EXTENDED The ST 90PCS QUAD shown in Figure 4 1 is a Painted Carbon Steel NEMA 4 wall mount enclosure designed for non corrosive installations Instrument Viewing Window 29 Single 1 4 Turn peepee 1181 1890 13 65 Front View
43. ks require a modbus master such as a DCS HMI or another RC Systems Controller equipped with our compatible radio modem As in all R C Systems wireless networks one transceiver must be designated as Server and all others as Clients No special configuration is required by the master or slave since this is a standard modbus network However radios must have the same Hop Channel and System ID settings to communicate The entire ST 90 modbus database including registers and supported Function Codes is documented in section 3 2 1 5 3 2 WIRELESS MODBUS MASTER MODE Wireless MODBUS allows ST 90s to function as wireless modbus masters as another way to acquire input data A very common modbus master application is to retrieve readings from another ST 90 configured as a slave 5 4 ANTENNA SELECTION 5 41 DIPOLE AND COLLINEAR ANTENNAS These antennas are connected to the Radio via a length of coax cable If the cable is larger than 6mm diameter 1 4 inch do not connect the cable directly to the radio connection on the ST 90 enclosure Thick cables have large bending radii and sideways force on the connector can cause a poor connection Use a short flexible pigtail such as our 1000 2308 between the thick cable and the radio connection The polarity of these antennas is the same as the main axis and they are normally installed vertically They can be mounted horizontally horizontal polarity however the antenna at the other end of the wirel
44. larm Ack Reset 2001 1 5 Note After writing a TRUE to this register the ST 90 automatically returns it to FALSE Read Only Discrete Chan 1 Fault Alarm 12001 2 NA Chan1 Alarm 1 12002 2 NA Chan1 Alarm 2 12003 2 NA Chan1 Alarm 3 12004 2 NA Chan2 Fault Alarm 12005 2 NA Chan2 Alarm 1 12006 2 NA Chan2 Alarm 2 12007 2 NA Chan2 Alarm 3 12008 2 Chan3 Fault Alarm 12009 2 NA Chan3 Alarm 1 12010 2 NA Chan3 Alarm 2 12011 2 NA Chan3 Alarm 3 12012 2 NA Chan4 Fault Alarm 12013 2 NA Chan4 Alarm 1 12014 2 NA Chan4 Alarm2 12015 2 NA Chan4 Alarm 3 12016 2 NA Standard Relay 1 12017 2 NA Standard Relay 2 12018 2 NA Optional Relay 1 12019 2 NA Optional Relay 2 12020 2 NA Optional Relay 3 12021 2 NA Optional Relay 4 12022 2 NA Optional Relay 5 12023 2 NA Optional Relay 6 12024 2 NA Input Fault Relay 12025 2 NA Read Only Registers Product ID 30001 4 NA Returns the numeric value 1000 for product ID Firmware value 30002 4 NA Return a numeric value for firmware value as Version divided by 100 D2A Chan 1 31001 4 NA D2A Chan 2 31002 4 NA D2A Chan 3 31003 4 NA D2A Chan 4 31004 4 NA 12 bit value representing the D2A value of 800 0 to 4000 100 after all cal features are applied 28 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B Chan Status 31005 4 NA Chan 2 Status 31006 4 NA Chan 3 Status 31007 4 NA Chan 4 Status 31008 4 NA 16 bit status word bit assignment for each channel ALARMI BELOW BIT
45. lems since it indicates amount of time since the most recent transmission was received The down arrow on top of the trend screen resets to far right each time a transmission is received by that channel When not in alarm ST 48 RFs transmit each 5 minutes so the arrow should never progress past the 5 minute interval The ST 90 activates the channel s FAULT alarm and indicates ComErr if no transmission has been received in 18 consecutive minutes e Low Battery status indicates the ST 48 RF s integral 3 6V lithium D cell part 10 0293 has dropped to below 3 3V and should be replaced very soon LoBatt 15 indicated on the ST 90 s LCD readout and the Alarm 3 LED flashes Relays are not energized by low battery conditions The actual battery voltage of each ST 48 RF may be seen in the ANALOG SETUP screen described above in section 5 2 e Calibrations performed at the ST 48 RF force a transmission of the Calibration bit which is indicated on the ST 90 s LCD readout by Rmt Cal Alarms are inhibited until the Calibration bit is cleared 18 minutes 5 Chx ComErr Figure 5 4 39 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B 5 3 WIRELESS MODBUS MASTER SLAVE MODES 5 3 1 WIRELESS MODBUS SLAVE MODE Wireless MODBUS allows one or many ST 90s to function as wireless modbus slaves by selecting wireless MODBUS in the COMM SETUP menu Figure 5 3 These wireless networ
46. m levels shown as block negative values dashed lines across each screen Figure 1 2 1 1 1 ENGINEERING UNIT SCREEN The ST 90 Engineering Unit screen shown at left in Figure 1 2 allows each channel s value and its 10 digit Eunits tag to be viewed simultaneously A1 A2 A3 FL icons at lower right of each reading flash if ALARM 1 2 3 or FAULT alarms activate for this channel BAR GRAPH SCREEN Values are displayed graphically as bar graphs with alarm levels indicated by vertical dashed lines across each bar The bar graph screen is very useful for emphasizing current reading relative to the channel s alarm set point Live readings and their Eunits tag appear above each bar graph 1 1 3 TREND SCREEN The ST 90 also provides 30 minute trend screens for each channel as shown in Figure 1 2 Live readings and their Eunits tag are displayed across the top of each trend screen Channel numbers are shown in the upper right and are selected by the NEXT key A2 and A3 alarm levels appear as horizontal dashed lines across the screen 1 2 SPECIFICATIONS 121 POWER SUPPLY REQUIREMENTS ST 90 primary power may be either 10 30 VDC or 100 240VAC AC power requirements are 100 240 VAC 50 60 Hz 80 amp max including inrush and 40 watts max steady state applied to TB5 on the motherboard If AC power is not available the primary power may be 10 30 VDC applied to TB1 on the motherboard A back up DC power source may also be connected to TB1 f
47. mpering with ST 90 parameters A sign on screen appears briefly after power is applied that indicates what type input output options the unit is configured with 2 1 SETUP MENU CONFIGURATION Variables inside the CHANNEL see section 2 2 and SYSTEM see section 2 3 menu trees allow ST 90 configuration for a wide range of monitoring applications Select the desired menu by scrolling with UP DOWN and then EDIT to enter each menu Figure 2 0 illustrates the menus tree for configuring Channel and System specific variables Channel variables affect only the specific channel selected while System variables are related to features not specific to any channel RC SYSTEMS Document UM 1006 Engrg Unit Screen 36 1 25 Engraunits LEL CH4 AL FL 28 9 v5 1 rem CO R2 AL ST 90 QUAD Controller User s Manual SETUP firmware revi Channel 1 Channel 2 Channel 3 Channel 4 System Security History Select press Edit HISTORY records up to 65 8 per page real time events such as Alarms Trips Alarm Acknowledgment pressing Alarm Reset button Calibrations amp Power Applied Press Edit to enter menu levels amp Next to reverse direction
48. n the A D Min Max Raw discussion in section 2 3 4 amp TB2 provide each channel s terminals for receiving analog inputs TB1 amp 2 also provides 4 terminals connected to the ST 90 internal 24 VDC power supply for powering external transmitters Figure 3 3 shows correct wiring for both 2 wire and 3 wire transmitters 21 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B Ch1 100 ohm 4 20mA terminator R2 Ch2 100 ohm 4 20mA terminator R3 Ch3 100 ohm 4 20mA terminator R4 Ch4 100 ohm 4 20mA terminator Spare Spare 100 ohm 4 20mA terminator These 5 resistors are socketed for easy replacement Terminators are connected between each channel s HI amp LO terminals LO 24VDC Power Supply Common 24VDC 24VDC Power Supply output avoc HI CH3 HI LO LO HI CH2 CH4 HI 4 20mA INPUTS Figure 3 2 Signal Signal Common 24 VDC Pwr 24 Pwr HI Q Pw Com 3 Wire 4 20mA Transmitter 2 Wire 4 20mA Transmitter Figure 3 3 3 1 2 OPTIONAL BRIDGE SENSOR INPUT BOARD 10 0309 Important 10 0309 PCB s may only be installed into motherboard position P1 The 10 0309 Quad Channel Bridge Sensor Input option shown in Figure 3 4 allows these popular sensors to be connected directly to the ST 90 without additional signal conditioning or transmitters Each channel is equipped with a bridge amplifier balance potentiometer and a
49. n adjustable switching regulator for setting the correct sensor excitation voltage A 3 position coarse gain jumper allows setting the gain of the bridge amplifier Fault supervision circuitry forces the ST 90 into a FAULT condition upon sensor failure or removal This option may also be configured to accept 4 20mA inputs into channels 3 amp 4 to allow mixing sensors and current loops into the same board Placing either channel s 2 position LEL 4 20mA jumper 7 5 or JP6 into the 4 20mA position and installing the associated precision 100 ohm socketed resistor allows 4 20mA signals to be applied to the mA 22 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B mA terminals see Optional 4 20mA notes in Figure 3 4 Precision 100 ohm resistors are taped to the inside of the ST 90 enclosure Bridge sensors require the nitial Setup calibration procedure described in section 3 1 3 After performing the one time only nitial Setup all subsequent calibrations are by the ST 90 s electronic Cal Mode menus see section 2 2 5 Sensors mounted locally to the ST 90 normally do not require nitial Setup since it is performed at the factory 3 1 3 BRIDGE SENSOR INITIAL SETUP Bridge sensors vary widely in power requirements and sensitivity It is therefore important to configure each channel to match the sensor with which it will operate Sensors attached to the ST 90 enclosure at the factory have already had Initial Setup
50. nt to remember the 4 digit code since the factory must be consulted if it is lost m SYSTEM SECURITY Contact Pass Code Unlocked Figure 2 13 18 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B SECTION 3 3 0 MOTHERBOARD INTERFACE PCB 10 0215 The ST 90 Motherboard shown below in Figure 3 1 is the interface between the Display CPU assembly and all other system I O devices The Display CPU assembly attaches to the motherboard with 4 standoffs and connects via ribbon cable to S1 Input options described in sections 3 1 1 and 3 1 2 are available that may be installed into the Input Option P1 connector located on the lower left side of the motherboard The middle position P2 connector is for the 10 0308 4 20mA Output option and the right position P3 connector is for the 10 0222 Discrete Relay option Other option devices such as Modbus RTU RS 485 Ethernet and a data logger may also be installed to connectors located on the Motherboard The Motherboard PCB contains a 24 VDC universal input 100 240 VAC switching power supply with up to 350mA available at the TB3 Auxiliary Power Output terminals If AC power is unavailable or if a DC battery back up supply is needed TB1 provides terminals for DC power input Blocking diodes isolate internal and external DC supplies as shown in Figure 3 0 See section 1 2 1 for additional power source information Universal Input Power Supply
51. obe in sympathy to the unit with the actual alarm condition SympFIlt SympA1 SympA2 or SympA3 are the sympathy alarm options available A Sympathy mode in our ST 72 controller broadcasts the Sympathy over ride when it detects an alarm condition from another network controller When a sympathy alarm is entered into this field and the correct Sympathy setup is configured into the ST 72 controller the ST 90 QUAD relay will energize when the corresponding alarm level is reached at another ST 90 QUAD controller that is part of the network The alarm level is assigned to the relay by entering one of the four possible sympathy overrides SympFlt SympA1 SympA2 or SympA3 When the relay has Sympathy override assigned the ST 90 QUAD accepts a broadcasted alarm flag from the ST 72 The active Sympathy alarm condition causes the screen to flash Sympathy and energize the relay With these settings if four ST 90s are setup in a perimeter monitoring application and a Sympathy override is assigned to a relay at each powering a local strobe light then all the strobes will be activated when any one of the sensor points at any ST 90 goes into alarm 2 3 0 RELAY 2 ACK Acknowledge HORN SETUP MENU e The Horn SETUP menu controls how each alarm type Fault and Alarms 1 through 3 will affect the horn driver circuit connected to J2 on the motherboard Choices are OFF STEADY or PULSE Warning level alarms might be set to pulse the horn with high alarms
52. of alarm conditions e Low Trip is set for NO for increasing alarms or YES for decreasing alarms to determine if the alarm activates upon exceeding or falling below the set point e Latching determines either manual or automatic alarm reset operation YES requires a manual Alarm Reset to unlatch the alarm even though an alarm condition no longer exists YES also causes this alarm s common relay front panel LED and optional discrete relay to latch NO allows all outputs for this alarm to automatically reset after the alarm condition clears Common alarm LED indicators on the left side of the front panel indicate the status of Al A2 A3 alarms The common Fault LED is on the lower right side of the front panel Any new alarm event causes the associated LED to flash until an Alarm Reset occurs causing an acknowledged steady on condition Operators should recognize new alarms by a flashing LED Alarm Reset also acknowledges or deactivates audible devices driven by the AUDIBLE ALARM option connector J2 see Figure 3 1 2 2 4 CONFIGURE MENU TO DEFINE CHANNEL The channel setup menu after the alarm menus is CONFIGURE It allows setting Name and EUNIT 10 digit ASCII fields defines the measurement range with ZERO amp SPAN RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B entries number of Decimal Points of resolution the reading will have and if the channel is Active m CONFIG Hame digits
53. or automatic switchover if the AC power source fails See Figures 3 0 amp 3 1 for wiring information The basic ST 90 consumes only 1 5 watts of 10 30 VDC power Optional features such as relays and analog outputs increase power consumption as described below RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B 10 0221 4 Analog Input PCB option add wattage for each monitor connected to this board s 24 VDC terminals e 10 0222 Discrete Relay PCB option add 1 5 watt 10 0308 4 20mA Output PCB option add 1 watt e 10 0309 Bridge Sensor Input PCB option add wattage of each sensor attached With an AC primary power source connected to 5 on the motherboard TB3 terminals 1 amp 2 on the motherboard provide a maximum of 10 watts output power for powering of auxiliary external devices such as relays lights and monitors see Figure 3 0 Power consumed from TB3 must be included when calculating system power consumption IMPORTANT TB3 only provides 24VDC power when AC is primary power 24 VDC terminals on the 10 0221 4 Analog input option see Figure 3 3 is typically used to power external transmitters up to 10 watts per channel and these loads must also be calculated into the overall power budget These terminals receive power from both the integral AC DC power supply and the external TB1 supply as shown in Figure 3 0 Some applications may require 24VDC power in excess of that available from the ST
54. ossveses 4 1 2 1 POWER SUPPLY REQUIREMENTS 4 1 2 2 RELAYS A EEA A E 5 1 2 3 AMBIENT TEMPERATURE RANGE e sssseessoseessecesssecssocecssoceesseceecsesssoocesseoeesseesesseessocessseceee 5 1 2 4 K ENS 6 1 2 5 U DID SNP 6 1 2 6 HOUSINGS INSTALLATION CATEGORIES esee netto seen sesto seta aseo n 6 1 2 7 APPROVALS E eiT 6 SECTION 2 SUNERRRRRUDERRRNRUNRSURKSDFERARRREREERE 6 2 0 6 2 1 SETUP MENU CONFIGURATION isssissssessccssssssccsssesssccesecessosoocsscescecsseassesssedsSoesssscsssessscsousesosseses 6 2 2 CHANGING MENU VARIABLES USING THE KEYPAD ee eese ee ee eene enean eee tnu 7 22 1 ST 90 SETUP CONFIGURATION MENUS etse so esee een 8 2 2 2 CHANNEL SETUP ENTRY MENU 4 ee eren ee eese reete tones ease sette esee eene esee eene esee ness 8 2 2 3 FAULT ALARM 1 ALARM 2 ALARM 3 SET UP 8 2 2 4 CONFIGURE MENU TO DEFINE CHANNEL eee e eere eee eene tn oeste toes seen nest ee sn sees 9 2 2 4 NAME EUNITS ASCII DATA FIELDS
55. p Delay 68s Sran Gas 54 8 UH 110107 82 21 45 LCLACK 1 Cal Delay 605 Set UNITY Gain 110107 82 12 22 Ch2Ail 17134122 CAL Offset 6 008 102407 23 36 56 Ch4R10 Date 08719707 CAL Gain 1 888 102407 23 01 13 Ch4RlI 102407 23 36 32 4 2 1 102407 23 36 11 Ch4A30 102407 25 56 17 Ch4A10 COMM SETUP RADIO SETUP Slave ID B Hor Channel a2 Configu dio 5 ID 832 Wireles jen Power _ AWATT H Radio menus only when 10 2454 Mode SERVER radio module is installed ANALOG SETUP INPUT SETUP Set Channel 1 4 1 Set Input Min Max Wein Counts 400 Set Output Min Max Max Counts 2668 Input Tyre Analog Rmt xmitter ID gal Counts 441 uic ECCL ee OUTPUT SETUP BR Min Counts 200 Max Counts 1888 Figure 2 0 2 2 CHANGING MENU VARIABLES USING THE KEYPAD Upon entering a menu a pointer controlled by the UP DOWN keys indicates the selected variable Some are simple YES NO or ON OFF entries toggled by pressing the EDIT key Others such as Channel ID and Eunits fields may have many ASCII character possibilities Allowed ASCII characters are as follows ABCDEFGHIJALMNOPQRSTUVWXYZ M abcdefghijkImnopqrstuvwxyz blank RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B space amp 0123456789 lt gt 9 Notice the often used blank character is located after lower case z and before the exclamation point EDIT pla
56. pt separate from low level signal wiring 123 AMBIENT TEMPERATURE RANGE 25 to 60 degrees C RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B 124 HUMIDITY RANGE 0 TO 90 R H Non Condensing 1 2 5 ALTITUDE Recommended up to 2000 meters 1 2 6 HOUSINGS INSTALLATION CATEGORIES NEMA 4X wall mount DIV 2 Groups A B C D Category II and pollution degree 3 NEMA 4X IP66 NEMA 7 wall mount for DIV amp 2 Groups B C D includes Ring in door to satisfy NEMA 4 rating Includes standard non intrusive magnetic keypad 1 2 7 APPROVALS CSA C22 2 No 1010 1 and ISA 882 02 CSA C22 2 No 152 for combustibles UL 1604 C22 2 No 213 Div 2 Groups A B C D EN55011 amp EN61000 CE Mark CSA File 219995 and may be seen at CSA International org SECTION 2 2 0 BASIC OPERATION The ST 90 s graphic LCD displays monitored data and with the 5 button keypad also serves as the system s operator interface All ST 90 configuration variables are entered with this operator interface using SETUP menus accessed by pressing EDIT from either data screen This Setup mode may be exited manually by pressing NEXT or automatically when no keys are pressed for 5 minutes Alarm relays and front panel alarm LED indicators remain active during the Setup mode Alarm LED s flash upon new alarms and become steady after Acknowledged by pressing the ALARM RESET key A SECURITY menu offers a password feature to prevent ta
57. s reads 0 00 at Oppm and 100 0 at 100ppm This may be undesirable due to the high resolution at zero unless the sensor s output is extremely stable If decimal points are limited to one the Oppm reading becomes 0 0 and the 100ppm reading remains 100 0 Resolution may be limited further by setting decimal points to 0 where in the above example Oppm reads 0 and 100ppm reads 100 2 2 44 TURNING OFF UNUSED CHANNELS The Channel Active menu entry asks if this channel is to be utilized OFF causes the controller to never process inputs applied to this channel and no alarms are tripped or data displayed Inactive channels have a line drawn through them on the Setup screen to indicate it is turned off 10 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B 2 2 5 CAL SETUP MENU The ST 90 CAL MODE feature supports pushbutton calibration of zero and span values This feature should be utilized only when there are no other zero span controls within the monitoring system since it is inappropriate to calibrate a signal at more than one point Therefore if calibration will be performed at another transmitter or monitoring device the ST 90 CAL MODE feature should not be used The CAL SETUP menu allows entering the correct Zero amp Span Gas set point values needed to calibrate the channel These are entered in the same engineering units as input range m Ch x CAL SETUP Calibrate Gas Ba Gas gl
58. spread over wide areas it is common for a central unit to have an omni directional antenna and the remote units to have Yagi antennas In this case as the omni directional antenna will be mounted with vertical polarity then the Yagi s must also have vertical polarity Care needs to be taken to ensure the Yagi is aligned correctly to achieve optimum performance Two Yagis can be used for a point to to link In this case they can be mounted with the elements horizontally to give horizontal polarity There is a large degree of RF isolation between horizontal and vertical polarity approx 30dB so this installation method is a good idea if there is a large amount of interference from another system close by transmitting vertical polarity An important mounting tip if a Yagi has drainage holes in the dipole element do not mount the antenna with the drainage 5 4 8 MOUNTING NEAR OTHER ANTENNAS Avoid mounting your network s antenna near any other antenna even when the other antenna is transmitting on a different radio band High RF energy of the transmission from a close antenna can deafen a receiver This is a common cause of problems with wireless systems Because antennas are designed to transmit parallel to the ground rather than up or down vertical separation between antennas is a lot more effective than horizontal separation If mounting near another antenna cannot be avoided mounting it beneath or above the other antenna is b
59. the antenna will be drained first by the mount s ground connection second by the outside shield of the coax cable to the ground connection on the radio and third by the internal conductor of the coax cable via the radio electronics This third earth path causes damage unless the other two paths provide a better earth connection allowing surge energy to bypass the electronics When an antenna is located outside of a building and outside of an industrial plant environment external coax surge diverters are recommended to further minimize the effect of surge current in the inner conductor of the coax cable Coax surge diverters have gas discharge element which breaks down in the presence of high surge voltage and diverts any current directly to a ground connection A surge diverter is not normally required when the antenna is within a plant or factory 42 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B environment as the plant steelwork provides multiple parallel ground paths and good earthing will provide adequate protection without a surge diverter 5 5 2 CONNECTIONS TO OTHER EQUIPMENT Surges can enter the wireless unit from connected devices via I O serial or Ethernet connections Other data devices connected to the wireless unit should be well grounded to the same ground point as the wireless unit Special care needs to be taken where the connected data device is remote from the wireless unit requiring a lon
60. tinued protection against fire replace only with same type and rating of fuse Part Littelfuse 217002 4 20mA OUTPUT OPTION See dwg 10 0308 RELAY 1 Indicator De RELAY 2 Indicator 3505 8 19 r4 wal ARE N d TBA 9909090 ne DENY CONTACTS M TB4 SUPPLY J2 Universal 100 240VAC Terminal 24 VDC Terminal is open collector 100mA driver for use with optional 100 decibel piezo annunciator Available for 10 30VDC primary power input May also be used as battery back up to AC primary power source TIE TBS GND to EARTH Dry contact input for use with optional remote Alarm Reset switch Wires must be shorter than 10 feet amp shielded if longer than 2 feet 24 VDC power output for remote devices such as transmitters lights relays see Figure 3 0 Figure 3 1 20 5 amp resistive SPDT form C dry contact relay outputs Use appropriate diode snubber devices when switching inductive loads primary power source terminals Important GND terminal 3 must be tied to earth for correct shielding of incoming signals SHOCK HAZARD RISK OF ELECTRICAL SHOCK DISCONNECT OR TURN OFF POWER BEFORE SERVICING THE EQUIPMENT RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B 3 1 INPUT OUTPUT OPTIONAL PCB s P1 P2 and P3 connectors on the motherboard of
61. to also accept wired signals from analog input option PCBs described in section 3 1 Use the WIRELESS setting shown at right of Figure 5 3 ONLY FOR COMMUNICATION TO ST 48 RF WIRELESS TRANSCEIVERS ST 48 RF s transmit 200 counts for 0 and 1000 counts for 100 full scale readings so Input Min Max menu values should be 200 amp 1000 factory default The Rmt Xmitter ID menu entry must match the Remote Id address setting in the ST 48 RF providing data to this ST 90 channel Voltage level of the 3 6 volt lithium battery in this ST 48 RF is also displayed on the ANALOG SETUP screen below the Rmt Xmitter Id 38 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B SYSTEM SETUP ANALOG SETUP Relay Setur Set Channel 1 4 2 Hck Horn Set InrFut Clock Delays Set Oubeut Min Max Communications We Tyre WIRELESS BP lneut Guteut Setur Rmt ID Track Negative A D Counts 441 A D Counts at bottom are most recent transmitted value from the wireless monitor Figure 5 3 5 2 1 RADIO STATUS ALARMS WIRELESS RECEIVER MODE When an ST 90 channel s Input Type is set for WIRELESS in addition to processing the ST 48 RF s 10 bit counts value it also receives status bits indicating Communications Error Low Battery and C e Communications Error Each channel s 30 minute trend screens Figure 5 4 are very useful for diagnosing wireless prob
62. ys latching relays and alarm Acknowledge dedicated horn driver circuit for a local audible annunciator is also standard Two standard 5 amp alarm relays are configurable via the alarm voting menu to make relays trip based upon various alarm combinations Real Time Clock and Calendar are also standard Options such as 4 20mA outputs discrete relays for each alarm and audible annunciators are easily added RS 485 Modbus RTU or Ethernet Modbus TCP ports are also available for sending data to PC s PLC s DCS s or other C Systems controllers A 128 x 64 pixel graphic LCD readout displays monitored data as bar graphs 30 minute trends and engineering units System configuration is via user friendly menus and all configuration data is retained in non volatile memory during power interruptions The ST 90 front panel is shown below in Figure 1 0 displaying the bar graph data screen The five button symbols below the display are magnetically activated using the supplied magnetic wand without opening the enclosure Opening the enclosure door provides access to the touch keypad as shown in Figure 1 1 RC SYSTEMS ST 90 QUAD Controller User s Manual Document UM 1006 B ST 90 Display amp Alarm Controller Quad Channel COMMON LEVEL STATUS ALARMS LED s ALARM 1 mmo 5 5 KEYPAD ALEL CH4 ALARM 2 E 9 FAULT ALARM EE ES CAL IN PROGRESS 7 Oxygen Magnetic Keypad Keypad buttons behind door

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