Omega DRST-AC User Manual Download Page 18 | Manualshive

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background image

18

Block Diagram

11

A

I

I

V

I + V

A

10 V

1 V

V

V

D / A

11

13

14

33

32

12

4179



 

  

43

44

42

41

(N)

HW

Watchdog

CPU

A/D

I- / V-

I+

31

A

+

-

500

50

21.6...253 VAC or
19.2...300 VDC

Green

Red

Supply

N.C.

Supply

Voltage

input

Current

input

Section11.1 - Block Diagram

DRST-AC

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Summary of Contents for DRST-AC

Page 1: ...e mail info omega com For latest product manuals www omegamanual info DRST AC Din Rail AC Transmitter TM Shop online at omega com User sGuide ...

Page 2: ...specifications without notice omega com info omega com Servicing North America U S A Omega Engineering Inc Headquarters Toll Free 1 800 826 6342 USA Canada only Customer Service 1 800 622 2378 USA Canada only Engineering Service 1 800 872 9436 USA Canada only Tel 203 359 1660 Fax 203 359 7700 e mail info omega com For Other Locations Visit omega com worldwide ...

Page 3: ...Signals 9 Section 5 2 Output Signals 9 Section 5 3 Power Connection 9 Section 6 DRSL DISPLAY programming front 10 Section 8 1 Mounting demounting the DRSL DISPLAY 10 Section 7 Order 11 13 Section 7 1 Specifications 13 Section 8 Configurable input error indication input limits 14 15 Section 9 DRSL DISPLAY display readout 16 Section 10 Connections 17 Section 11 Block Diagram 18 Section 12 Configurat...

Page 4: ... Local Operator Interface LOI allows for local monitoring of process values device configuration error detection and signal simulation The next generation our DRST CM Remote Operator Interface ROI does all that and more adding remote digital communications via Modbus RTU while the analog output signals are still available for redundancy With the DRST CM you can further expand connectivity with a g...

Page 5: ...The following operations should only be carried out on a disconnected device and under ESD safe conditions General mounting connection and disconnection of wires Troubleshooting the device Repair of the device and replacement of circuit breakers must be done by Omega A S only HAZARD OUS VOLTAGE Triangle with an exclamation mark Read the manual before installation and commissioning of the device in...

Page 6: ...aterials i e wire cross section protective fuse and location Descriptions of input output and supply connections are shown in the block diagram and side label The following apply to fixed hazardous voltages connected devices The max size of the protective fuse is 10 A and together with a power switch it should be easily accessible and close to the device The power switch should be marked with a la...

Page 7: ...AO ER The DRST AC is designed with a high safety level Therefore the device continuously measures the output current If S4 20 is selected during configuration and output current drops to 0 mA the DRSL DISPLAY display will indicate AO ER and the front LED will turn red A 0 mA output can be caused by an open output loop The error mode can be reset by power cycling the device or stepping through the ...

Page 8: ... output value for increased safety Technical characteristics The latest analog and digital techniques are used to obtain maximum accuracy and immunity to interference Possibility of output safety readback by selecting S4 20 mA output Response time 0 75 s for measuring AC current voltage signals The current output can drive up to 800 Ohms with an adjustable response time of 0 0 60 0 seconds Excepti...

Page 9: ...ection 5 44 43 42 41 N N 33 32 31 12 14 13 11 10 V 1 V 10 V 1 V Section 5 3 Power connection 21 6 253 VAC or 19 2 300 VDC Section 5 1 signals Current Voltage Section 5 2 Output signals V supply Current voltage 2 wire ...

Page 10: ... 57 mm shows the scaled process value OK or error Line 2 H 3 33 mm shows the selected engineering unit Line 3 H 3 33 mm shows analog output or TAG no Line 4 shows status for communication and signal trending Programming access can be blocked by assigning a password The password is saved in the device in order to ensure a high degree of protection against unauthorized modifications to the configura...

Page 11: ...D w DRSL DISPLAY DRST CM 109 x 23 5 x 116 131 mm Weight approx 250 g Weight incl DRSL DISPLAY DRST CM approx 285 g 350 g DIN rail type DIN EN 60715 35 mm Wire size 0 13 2 08 mm2 AWG 26 14 stranded wire Screw terminal torque 0 5 Nm Common electrical specifications Supply voltage universal 21 6 253 VAC 50 60 Hz or 19 2 300 Vdc Max required power 1 8 W nom Max power dissipation 2 5 W Isolation voltag...

Page 12: ...le input limits Configurable input limits low VOLT 0 VAC to Minimum selected input CURR 0 AAC to Minimum selected input Configurable input limits high VOLT Maximum selected input to 300 VAC CURR Maximum selected input to 5 AAC EMC immunity influence 0 5 of span Extended EMC immunity NAMUR NE 21 A criterion burst 1 of span General values Input type Absolute accuracy Temperature coefficient All 0 3 ...

Page 13: ...r Inverted action V function can be selected for fixed output ranges starting at zero Signal range 0 23 mA unipolar 23 23 mA bipolar Current limit 28 mA unipolar 28 mA bipolar Load stability 0 001 of span 100 Ω Response time programmable 0 0 60 0 s Output limitation at outside range See table on page 14 Voltage output specifications All standard and custom ranges can be selected as Direct or Inver...

Page 14: ... error states defined by NAMUR NE43 for 4 20 mA output span and for all other output spans equivalent output error indications are used see table on page 14 Example 4 20 mA output span and both high and low configurable input error limit enabled with output error indication set to ZERO Min selected input 15 Max selected input 15 Normal measuring range Output error indication NONE Extended measurin...

Page 15: ...t check Low and or High enabled Output span Output limit low Output limit high Output limit low Output limit high Output error indication UP Output error indication DOWN Output error indication ZERO Output error indication NONE 0 1 V 0 V 1 15 V 0 V 1 025 V 1 15 V 0 V 0 V No error indication 0 2 1 V 0 V 1 15 V 0 195 V 1 025 V 1 15 V 0 175 V 0 V No error indication 0 5 V 0 V 5 75 V 0 V 5 125 V 5 75 ...

Page 16: ... error RA ER RAM error Hardware error AD ER A D converter error Hardware error AO SU Analog output supply error Hardware error EF ER External flash error Hardware error IF ER Internal flash error All error indications in the display flash once per second The help text explains the error If the error is an input loop error the display backlight flashes as well this is acknowledged stopped by pushin...

Page 17: ...ions 10 11 13 12 14 11 13 12 14 mA 11 13 12 14 mA 11 13 12 14 41 43 42 44 31 32 33 41 43 42 44 V V Outputs 2 wire transmitter Current Voltage 10 V Voltage 1 V Current Inputs Voltage Supply Section10 1 Connections ...

Page 18: ... I I V I V A 10 V 1 V V V D A 11 13 14 33 32 12 4179 43 44 42 41 N HW Watchdog CPU A D I V I 31 A 500 50 21 6 253 VAC or 19 2 300 VDC Green Red Supply N C Supply Voltage input Current input Section11 1 Block Diagram DRST AC ...

Page 19: ...the device in order to ensure a high degree of protection against unauthorised modifications to the configuration Default password 2008 allows access to all configuration menus Signal and sensor error indication via display front DRSL DISPLAY DRST CM Error indication is displayed in line 1 as text and at the same time the backlight flashes A flashing bullet in line 4 is indicating correct function...

Page 20: ...utomatically if the DRSL DISPLAY DRST CM is detached Password PASS Here you can choose a password between 0000 and 9999 in order to protect the unit against unauthorised modifications to the configuration The unit is delivered default without password Language LANG In the menu LANG you can choose between 7 different language versions of help texts that will appear in the menu You can choose betwee...

Page 21: ...s enabled 7 Only displayed if CUST is selected This menu will change range automatically Power up 8 Value will be forced to be greater than xx LO 9 Maximum and minimum value selectable from menu must be based on input type VOLT Min 0 000 Max 300 CURR Min 0 000 Max 5 00 and held Toggle line 3 function A Out TAG Setting is volatile use DISP setup menu to change and store line 3 function No VOLT CURR...

Page 22: ...s K kA kg kJ kPa kV kW kWh l l h l min l s m m h m min m s m s2 m3 m3 h m3 min mA mbar mils min mm mm s mol Mpa mV MW MWh N Ohm Pa pH rpm s S t t h uA um uS V W Wh yd VRMS ARMS blank CURR ANA OUT Txt 10 CURR VOLT 4 20 O RANGE Txt 11 20 10 S4 20 4 20 0 20 ACTI OUT MOD Txt 13 2 PASS ACTI 0 10 O RANGE Txt 12 10 5 1 2 10 0 10 1 5 0 5 0 2 1 0 1 3 3 Selectable UNITS CURR VOLT OK OK 22 OK OK OK OK Routin...

Page 23: ...VRMS Txt 51 0 00 0 00 UP OUT ERR Txt 54 UP ZERO DOWN NONE NO YES ILIM H Txt 52 YES NO 230 VRMS Txt 53 300 230 UP OUT ERR Txt 54 UP ZERO DOWN NONE NO 15 16 0 0 RESP Txt 15 60 0 0 0 To default state 1 0 OK OK OK OK OK Routing Diagram 13 ...

Page 24: ... Txt 27 5 000 0 000 5 5 5 NO NO NO NO OFUN SETUP Txt 15 7 DIR O FUNC Txt 31 VFUN INV DIR LANG SETUP Txt 15 6 UK LANGUA Txt 30 DE DK ES FR IT SE UK Section 13 2 advanced settings ADV SET To default state 1 0 In the submenu simulation SIM you must press 3 or remove the DRSL DISPLAY DRST CM to return to the default state 1 0 OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK 24 5 Se...

Page 25: ...0 2 1 V output range Select 0 5V output range Select 1 5V output range Select 0 10V output range Select 2 10V output range Select 1 1 V output range Select 5 5 V output range Select 10 10 V output range 1 2 3 4 5 6 7 8 9 10 11 12 Select active output mode Select passive output mode Set Analog output response time in seconds Select Analog Output Function Enter Language setup Enter Password setup En...

Page 26: ... configuration A D converter error No communication Input range limit error Input outside configurable input range limit Invalid configuration type or version External flash error Internal flash error Set input range low Set input range high Enable configurable input limit low Set configurable input limit low Enable configurable input limit high Set configurable input limit high Select downscale a...

Page 27: ...GA if the unit is found to be defective it will be repaired or replaced at no charge OMEGA s WARRANTY does not apply to defects resulting from any action of the purchaser including but not limited to mishandling improper interfacing operation outside of design limits improper repair or unauthorized modification This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows ...

Page 28: ...rs M U Turbine Paddlewheel Systems M U Totalizers Batch Controllers pH CONDUCTIVITY M U pH Electrodes Testers Accessories M U Benchtop Laboratory Meters M U Controllers Calibrators Simulators Pumps M U Industrial pH Conductivity Equipment DATA ACQUISITION M U Communications Based Acquisition Systems M U Data Logging Systems M U Wireless Sensors Transmitters Receivers M U Signal Conditioners M U Da...

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