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HA71 Digital Gas Controller

Revision 3 (04/08)

HA71 Technical Manual

Important Safety Issues

The following symbols are used in this manual to alert the user of
important instrument operating issues:

This symbol is intended to alert the user to hazards or

unsafe practices which could result in severe personal

injury or death.
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.

WARNINGS:

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 6-2).
Only the combustible monitor portions of this instrument

•

have been assessed by CSA for C22.2 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.
Use a properly rated CERTIFIED AC power (mains) cable installed

•

as per local or national codes
A certified 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 rate CERTIFIED fuse or current limiter is

required to installed as per local or national codes. Markings

for positions of the switch or breaker should state (I) for on and

(O) for off.
Clean only with a damp cloth without solvents.

•

Equipment not used as prescribed within this manual may impair

•

overall safety.

WARNING

Explosion hazard- substitution of components 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.

Modbus

is a Registered Trademark of Schneider Electric

Summary of Contents for HA71

Page 1: ...HA71 Digital Gas Controller Technical Manual TO C General Descriptio n Basic Operatio n Main I O Interfac e PCB System Diagnostic s Modbus RS485 Ports HA71 Enclosure s Ordering Informatio n Warrant y ...

Page 2: ...r C22 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 Use a properly rated CERTIFIED AC power mains cable installed as per local or national codes A certified AC power mains disconnect or circuit breaker should be mounted near the controller and installed following applicable local and national codes If a...

Page 3: ...a From Menu to Set Input Source 2 4 2 2 5 MIN MAX Raw Counts Menu 2 5 2 2 6 Marker Menus 2 6 2 2 7 Linearization Menu 2 6 2 2 8 Configure Menu 2 6 2 2 9 Eunits Measurement Name ASCII Data Fields 2 6 2 2 10 Input Measurement Range 2 7 2 2 11 Decimal Point Resolution 2 7 2 2 12 Turning off Unused Channels 2 7 2 2 13 Copy Data To 2 7 2 2 14 CAL Mode 2 7 2 3 System Configuration Menus 2 8 2 3 1 Common...

Page 4: ... 5 0 Modbus RS 485 Ports 5 2 5 1 Modbus Slave Register Locations 5 2 6 HA71 Enclosures 6 0 HA71 Enclosures 6 2 6 1 HA71PM Panel Rack Mount Enclosure 6 2 6 2 HA71N4 NEMA 4X Fiberglass Wall Mount Encl 6 3 6 3HA71SSNEMA4X316StainlessSteelWallMountEncl 6 5 6 4 HA71XP NEMA 7 Explosion ProofWall Mount Encl 6 6 6 5 HA71 Main I O and Option PCB Footprint Dimensions 6 7 A Ordering Information A Ordering In...

Page 5: ...HA71 Digital Gas Controller Revision 3 04 08 HA71 Technical Manual 1 1 1 General Description ...

Page 6: ... Figure 1 2 displays a 24 hour trend of input data for the channel selected Horizontal tic marks are each hour and vertical tic marks are each 10 of full scale Dashed lines indicate alarm levels The graphic LCD is 240 pixels wide so each pixel represents 1 10 hour or 6 minutes worth of data The trend is 100 pixels high so each represents 1 of full scale in amplitude Since each data point must be c...

Page 7: ...the AVERAGE buffer overflows and the error message UPDATE appears in the AVERAGE field Exiting this screen resets the buffer and clears the error message 1 2 Specifications 1 2 1 DC Power Supply Requirements Standard HA71 power requirements are 10 30VDC 3 watts applied to terminals 9 11 of TB2 on the standard I O PCB see Section 3 0 Optional features increase power consumption as described below D...

Page 8: ...e 6 1 NEMA 4X wall mount in fiberglass enclosure weighing 17 lbs Figure 6 2 NEMA 4X wall mount enclosure in 316 stainless steel weighing 30 lbs Figure 6 4 NEMA 7 wall mount suitable for DIV 1 2 Groups B C D weighing 110 lbs Figure 6 5 Includes non intrusive magnetic keypad 1 2 8 Non Intrusive Magnetic Keypad The HA71 operator interface includes five front panel touch keys A magnetic keypad option ...

Page 9: ...HA71 Digital Gas Controller Revision 3 04 08 HA71 Technical Manual 2 1 2 Basic Operation ...

Page 10: ...asurement Name 50 PCTLEL S y s t e m C o n t r a s t A u t h o r i z e C h a n n e l 0 C h a n n e l 0 2 C h a n n e l 0 3 C h a n n e l 0 4 C h a n n e l 0 5 C h a n n e l 0 6 C h a n n e l 0 7 C h a n n e l 0 8 C h a n n e l 0 9 C h a n n e l 1 0 C h a n n e l 1 1 C h a n n e l 1 2 C h a n n e l 1 3 C h a n n e l 1 4 C h a n n e l 1 5 C h a n n e l 1 6 U N L O C K E D S E T U P M E N U 1 D i a g...

Page 11: ... 2 1 Channel Setup Entry Menu The entry menu shown on the left side of Figure 2 2 allows access to all configuration variables for the selected channel These are Alarm 1 Alarm 2 Alarm 3 Data From Linearize Input and Calibrate 2 2 2 Alarm 1 Alarm 2 Horn Relay Set Up Menu Alarms 1 and 2 are identical except A1 may not be acknowledged and front panel LED indicators are yellow while A2 s are red Since...

Page 12: ...channel alarms LED s optional discrete relays may be set as Alarm 3 level alarms the common relay for this group is always a Fault alarm The fault out of range threshold for the channel is the most recent Fault trip point entered prior to changing the menu to Alarm 3 The following example describes how to configure both the Fault out of range and Alarm 3 level trip points for a channel Example If ...

Page 13: ...ad out values described in Section 2 2 10 This menu entry is determined by the A D converter resolution of the channel s input For example if the input is a 10 bit Modbus device with zero at 200 counts and 100 at 1000 counts then this menu s MIN should be set at 200 and MAX at 1000 If communicating with the HA71 s optional 12 bit Analog Input PCB the MIN should be 800 and the MAX 4000 If the input...

Page 14: ... is 0 200 ppm H2 S then 100 ppm is 50 of full scale Zero input will provide a zero output and 100 input a 100 output Nine intermediate points may be entered to define the curve EDIT NEXT Entry menu Channel XX Measurement Name Linearization menu Channel XX Linearization Input Output 10 00 20 00 30 00 40 00 50 00 60 00 70 00 80 00 90 00 10 00 20 00 30 00 40 00 50 00 60 00 70 00 80 00 90 00 Alarm 1 A...

Page 15: ...ocess inputs applied to this channel and no alarms will be tripped or data displayed Inactive channels have a line drawn through them on the Setup screen as indicated by channels 15 16 in Figure 2 1 If less than 9 channels are to be activated the HA71 may be set for 8 channel mode deactivating channels 9 16 This is done in the System Setup menu described in Section 2 3 The HA71 will only allow 15 ...

Page 16: ...ombustible sensor is to be spanned with 50 LEL span gas the span set point must be 50 If 45 LEL is to be used later the span set point must be changed to 45 to match the span calibration gas If the reading is only 40 LEL with the 50 gas applied a span calibration is needed Move the pointer to the Set Span entry and press EDIT twice Unity Gain may be used at anytime to cancel incorrect calibrations...

Page 17: ...gize during alarm conditions and energize when there is no alarm Therefore a power failure forces the relay contact to the alarm position Note the common Fault relay is always failsafe and may be monitored separately to indicate loss of power conditions in many applications A1 and A2 Votes allows creation of logical AND function equations that control common relay 1 common relay 2 Default settings...

Page 18: ...indicate alarm conditions The common horn relay is similar to the common A1 and A2 common relays Figure 2 13 Common Horn Relay and Local Piezo Menu Turning Piezo Alarm ON causes the audible piezo to duplicate the action of the horn relay This feature may be used to provide a low decibel indication of the status of the system s horn Alarm 1 Alarm 2 menus control how this alarm level from each chann...

Page 19: ...astrTO master time out and Mastr PR master poll rate menu items affect the HA71 s master Modbus port Time out sets length of time in milliseconds before a communications error Three consecutive timeout errors must occur before a communication error is indicated This item is useful for optimizing throughput to the HA71 from other slave RTU s Poll Rate sets frequency of data requests to the RTU s in...

Page 20: ...e system the correct 4 digit authorization number must be entered into the Enter Code field Point to the Unlock System entry and press EDIT to complete the unlock procedure It is very important to remember the 4 digit code since the factory must be consulted if it is lost Authorization ENTER NAME Enter Code Lock System Figure 2 16 Authorization Mode Menu 2 5 LCD Contrast Adjustment The Setup menu ...

Page 21: ...HA71 Digital Gas Controller Revision 3 04 08 HA71 Technical Manual 3 1 3 Main I O Interface PCB ...

Page 22: ...dditional terminals for incoming and outgoing cables For example installing the 2 COM 1 jumpers connects screw terminals 1 and 5 and terminals 3 and 7 Socketed RS 485 terminating resistors R6 COMM 1 and R12 COMM 2 are located on the MAIN I O board These resistors should be removed if communication wire lengths are very short less than 25 feet or if the port is not a the end of the communication li...

Page 23: ...d IN LO terminals are tied to TB2 2 Bussing allows transmitter power to be brought into the system at a single point TB2 and distributed back out at each channel s EXC IN LO terminals to simplify field wiring Figure 3 3 includes typical wiring to 2 and 3 wire 4 20mA transmitters JP1 determines if the 8 analog inputs are applied to channels 1 8 or channels 9 16 Connecting more than 8 analog inputs ...

Page 24: ...cient when these boards are in close proximity to each other Caution All relays are rated at 5 Amp for 28 VDC and 250 VAC RESISTIVE loads Appropriatediode DCloads orMOV ACloads snubberdevices must be installed with inductive loads to prevent RFI noise spikes Relay wiring should be kept separate from low level signal wiring TB2 5VDC ONLY ASSY 10 0195 8 CH DISCRETE RELAY TB1 JUMPERS ZONE JP4 U2 J2 J...

Page 25: ...Setup Catalytic bead 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 Prior to connecting sensors apply power to the system 1 Note This PCB requires 24VDC power be connected to its TB2 terminals 1 and 2 as shown in Figure 3 5 Suitable fused power is available from the Main I O board s TB2 te...

Page 26: ...LEL 4 20mA jumper to 4 20mA U1 1 3 5 7 9 11 13 15 17 19 21 23 2 4 6 8 10 12 14 16 18 20 22 24 Ch8 16 C A R Ch6 14 C A R Ch4 12 C A R Ch2 10 C A R 1 2 100 ohm Res Sockets JP9 sets for Ch s 1 8 or 9 16 Ch 1 Ch 2 Ch 4 Ch 6 Ch 5 Ch 3 Ch 7 Ch 8 Up to 4 10 0192 Dual CATBEAD input modules may be installed Disconnect power before removing or installing modules CH B CH B CH A CH A 4 2VDC T P LOW HIGH MED G...

Page 27: ...of RTD sensor readings Each channel must be calibrated individually by either simulating desired zero and span calibration resistance values or by actually placing the channel s RTD into an actual precision temperature generator Ice water is an acceptable method for generating the 0 C zero temperature value Upscale span values are best simulated with an RTD calibrator Since RTD s are stable and re...

Page 28: ...see Figure 3 1 Since the PCB has 8 channels two are required for 16 channel applications JP1 configures the outputs for channels groups 1 8 or 9 16 TB1 Q4 Q6 Q2 Q10 Q12 Q8 D2 Q16 Q14 HI HI HI HI HI HI HI HI U11 ST 71 mA OUTPUT BOARD Q1 LO LO LO LO LO LO LO LO Q5 Q3 Q7 PCB 0010 1121 Assy 10 0167 C3 High s Milliamp Low s Outputs Rev 0 CR1 C6 R26 C7 U9 Q13 Q11 Q9 C4 C1 J2 C2 J1 D1 U8 Q15 U10 TP1 Q17 ...

Page 29: ...ta bits no parity one stop bit and FlowControl Hardware Printer diagnostic red LED s indicate printer faults such as out of paper overflowed buffer or loss of communications Green LED s flicker to confirm good communications between the HA71 and printer during print attempts Examples of printed alarm events are shown below The format of each event from left to right is DATE TIME 16 character ASCII...

Page 30: ...s immediate printing of all channel variables such as channel ID s Engineering Units etc PRINTER READY ERROR indicates the functional status of the printer Figure 3 9 Clock Printer Setup Menu 3 1 9 Optional 24VDC 150 Watt Power Supplies The HA71 Controller may be powered from 10 30VDC However many applications require 24VDC power for the monitors or transmitters providing inputs to the HA71 A 150 ...

Page 31: ...HA71 Digital Gas Controller Revision 3 04 08 HA71 Technical Manual 4 1 4 System Diagnostics ...

Page 32: ...analog I O It is exited manually by pressing NEXT and automatically if no keys are pressed for 5 minutes Caution It is very important to understand that CHANNEL INPUT DATA IS NOT PROCESSED DURING THE DIAGNOSTICS MODE It is possible to miss important input values while utilizing this mode and appropriate safeguards should be in place However the Diagnostics Mode can prove invaluable when testing I ...

Page 33: ...HA71 Digital Gas Controller Revision 3 04 08 HA71 Technical Manual 4 3 Figure 4 2 System Diagnostic Mode Part 2 ...

Page 34: ...HA71 Digital Gas Controller Revision 3 04 08 HA71 Technical Manual 5 1 5 Modbus RS 485 Ports ...

Page 35: ... Last Read FC Write FC Notes Channel Tag 1 40401 40408 3 n a 2 Characters per Register Channel Tag 2 40409 40416 3 n a 2 Characters per Register Channel Tag 3 40417 40424 3 n a 2 Characters per Register Channel Tag 4 40425 40432 3 n a 2 Characters per Register Channel Tag 5 40433 40440 3 n a 2 Characters per Register Channel Tag 6 40441 40448 3 n a 2 Characters per Register Channel Tag 7 40449 404...

Page 36: ...rs per Channel EUNITS 7 40547 40549 3 n a 2 Characters per Register 3 Registers per Channel EUNITS 8 40550 40552 3 n a 2 Characters per Register 3 Registers per Channel EUNITS 9 40553 40555 3 n a 2 Characters per Register 3 Registers per Channel EUNITS 10 40556 40558 3 n a 2 Characters per Register 3 Registers per Channel EUNITS 11 40559 40561 3 n a 2 Characters per Register 3 Registers per Channe...

Page 37: ...egisters per Channel ASCII Value 10 40604 40606 3 n a 2 Characters per Register 3 Registers per Channel ASCII Value 11 40607 40609 3 n a 2 Characters per Register 3 Registers per Channel ASCII Value 12 40610 40612 3 n a 2 Characters per Register 3 Registers per Channel ASCII Value 13 40613 40615 3 n a 2 Characters per Register 3 Registers per Channel ASCII Value 14 40616 40618 3 n a 2 Characters p...

Page 38: ...t integer see bit by bit definition below Bit by Bit Definition Alarm 1 Trip bit0 1 Low 0 High Alarm 1 Horn Drive bit1 1 On 0 Off Alarm 3 Type bit2 1 Level 0 Fault Alarm 2 Horn Drive bit3 1 On 0 Off Linearize bit4 1 On 0 Off Alarm 3 Trip bit5 1 Low 0 High Input In Cal bit6 1 1 5mA Cal Detected 0 Normal Mode Channel Disable bit7 1 Disabled 0 Enabled Controller Channel In Cal bit8 1 Cal Mode 0 Norma...

Page 39: ...mon Relay status bits register 31036 are as follows Relay 1 bit0 Relay 2 bit1 Fault Relay bit2 Horn Relay bit3 Alarm LED flashing status bit 1 indicates LED is flashing Acknowledge clears all to 0 Type Channel First Last Read FC Write FC Notes Alarm 1 Status 1 16 31049 n a 4 n a packed 16bit integer Alarm 2 Status 1 16 31050 n a 4 n a packed 16bit integer Alarm 3 Status 1 16 31051 n a 4 n a packed...

Page 40: ...r 1000 for decimal position of 1 2 3 or 4 where 123 4 would return the value 10 Type Channel First Last Read FC Write FC Notes Zero Real 1 16 41001 16 n a 4 n a zero real w o decimal point Zero DP 1 16 41017 32 n a 4 n a zero real divisor Span Real 1 16 41033 48 n a 4 n a span real w o decimal point Span DP 1 16 41049 64 n a 4 n a span real divisor Alarm 1 Real 1 16 41065 80 n a 4 n a alarm 1 real...

Page 41: ...eiving an update command from the Modbus master Type Channel First Last Read FC Write FC Notes Update MIN n a 2065 n a n a 5 Moves 24 hour MIN data trend to trend data base Update AVG n a 2066 n a n a 5 Moves 24 hour MIN data trend to trend data base Update MAX n a 2067 n a n a 5 Moves 24 hour AVG data trend to trend data base This update requires several seconds Therefore a data ready register is...

Page 42: ...HA71 Digital Gas Controllers Revision 3 04 08 HA71 Technical Manual 6 1 6 HA71 Enclosures ...

Page 43: ...I O option PCB s such as analog input or discrete relays may be mounted directly to the back of the enclosure Additional 8 channel I O option PCB s must be located external from the assembly on another mounting plate A 3 foot length of I2 C cable is also supplied for this purpose Weight is approximately 7 pounds Properly ground the enclosure and follow national and local electrical codes RACK PANE...

Page 44: ...ng outdoors but an above mounted weather deflector shield is recommended Weight is approximately 17 pounds Figure 6 3 provides important warning information concerning correct grounding procedures for non metallic enclosures Conduit entries are not provided so installers may place entries as needed Bottom or lower side areas are recommended Care must be taken to avoid drilling into circuit boards ...

Page 45: ...HA71 Digital Gas Controller Revision 3 04 08 HA71 Technical Manual 6 4 Figure 6 3 Grounding Illustration ...

Page 46: ...y be mounted inside this enclosure It is suitable for mounting outdoors but an above mounted weather deflector shield is recommended Weight is approximately 30 pounds Conduit entries are not provided so installers may place entries as needed Bottom or lower side areas are recommended Care must be taken to avoid drilling into circuit boards mounted inside the enclosure Properly ground the enclosure...

Page 47: ... or discrete relays may be mounted inside this enclosure It is suitable for mounting outdoors but an above mounted weather deflector shield is recommended Weight is approximately 110 pounds Properly ground the enclosure and follow national and local electrical codes VERTICAL POSTIION 7 W 21 H HORIZONTAL POSITION 15 W 12 7 8 H MOUNTING HOLE DIMENSION FRONT VIEW HORIZ POSITION MOUNTING FOOT TYP 4 PL...

Page 48: ...and 4 more with the 10 0180 expansion plate since in panel rack mount installations 10 0180 s must be mounted in user space behind panels or inside racks multiple 10 0180 s may be incorporated to support the required option positions HA71N4 NEMA 4X Wall Mount supports 3 option positions as standard and 4 more with the 10 0180 expansion plate If more than 7 option positions are required the 10 0178...

Page 49: ...HA71 Digital Gas Controller Revision 3 04 08 HA71 Technical Manual A 1 A Ordering Information ...

Page 50: ...71SM within a rack panel mount enclosure HA71PM a NEMA 4X enclosure HA71N4 and a NEMA 7 explosion proof enclosure HA71XP is also available These package styles support addition of up to 7 I2 C option board footprints 3 w o 10 0180 expansion kit option inside each respective enclosure Additional options may be added externally or in other enclosures Optional Equipment cont d PART NUMBER DESCRIPTION...

Page 51: ...NUMBER DESCRIPTION 10 0142 Replacement Main I O PCB for HA71 XP 10 0213 Replacement Main I O PCB for HA71PM ribbon connector on circuit side of PCB 10 0006 Replacement HA71 Flat Panel LCD Module 10 0185 Replacement Complete HA71 Front Panel Electronic Nest Assembly Including 10 0006 LCD 10 0231 Replacement HA71 Front Graphic Panel 1000 1992 Replacement Main I O PCB Fuse 20mm 2 amp 0010 1110 I2 C 6...

Page 52: ...HA71 Digital Gas Controller Revision 3 04 08 HA71 Technical Manual B 1 B Warranty ...

Page 53: ...under these warranty terms Time and travel expenses for on site warranty services will be charged at Honeywell Analytics normal billing rates Contact your Honeywell Analytics representative for information on available Service Contracts Honeywell Analytics shall not be liable for any loss or damage whatsoever or howsoever occasioned which may be a direct or indirect result of the use or operation ...

Page 54: ...oneywell com www honeywell com Asia Pacific Honeywell Analytics 508 Kolon Science Valley l 187 10 Guro Dong Guro Gu Seoul 152 050 Korea Tel 82 2 2025 0300 Fax 82 2 2025 0329 analytics ap honeywell com 1998M0650 Rev 3 April 2008 2008 Honeywell Analytics Please Note While every effort has been made to ensure accuracy in this publication no responsibility can be accepted for errors or omissions Data ...

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